Eleven seconds after a deep sea diver jumps into the ocean he is 69 feet below sea level and 28 seconds later, he is195 feet below sea level. If he is descending under water at a constant rate, how many feet below sea level will hebe 1.5 minutes after his initial descent

Answers

Answer 1

Answer: [tex]405.7\ ft[/tex]

Step-by-step explanation:

Given

After 11 sec, diver is 69 feet below sea level

after 28 s , it is 195 feet

rate of traveling

[tex]\Rightarrow u=\dfrac{195-69}{28}\\\\\Rightarrow u=4.53\ ft/s[/tex]

after 1.5 minutes, that is 90 s, diver must have traveled

[tex]\Rightarrow d=4.53\times 90\\\Rightarrow d=407.7\ ft[/tex]

Answer 2

Answer:

7299 feet

Step-by-step explanation:

At 11 second the depth is 69 feet

At 28 seconds the depth is 195 feet  

Let the initial velocity at the time t = 0 is u.

Use second equation of motion

[tex]s = u t +0.5 at^2\\\\69 =11 u + 0.5 a\times 11\times 11\\\\69 = 11 u + 60.5 a..... (1)\\\\195 = u (28 -11) +0.5 a\times (28-11)^2\\\\195 = 17 u + 144.5 a .....(2)[/tex]

By soling (1) and (2)

a = 1.73 m/s^2, u = 3.25 m/s

So, the distance in 1.5 minutes is

h = 3.25 x 1.5 x 60 + 0.5 x 1.73 x 1.5 x 1.5 x 60 x 60

h = 292.5 + 7006.5 = 7299 ft


Related Questions

Initial amount problem help

Answers

Answer:

3000

growth

2.2%

Step-by-step explanation:

The price of a certain item is P dollars. The sales tax on the item is 7%. Which expressions represent the total cost of the item, in dollars, after the tax has been applied? Select EACH correct anwser

0.07P 1.07P P+0.07P 1+0.07P (1+0.07)P

Answers

Step-by-step explanation:

P = $ Dollars

Item = 7%

Answer

item 7/100 = 0.07/1 item

(1+0.07) P

The ratio of yes votes to no votes was 3 to 4. If there where 2721 yes votes how many no votes where there

Answers

Answer:

3628

Step-by-step explanation:

Ratio of   yes votes:no votes = 3:4  

Yes votes = 2721,

Now,

[tex]\frac{2721}{3} = 907[/tex]

so, [tex]907 * 4 = 3628[/tex]

So, there were 3628 no votes.

3628.

Step-by-step explanation:

The ratio of   yes votes: to no votes = 3:4  

Yes votes = 2721,

Now,

2721/3 = 907

So 907 × 4 = 3628.

So, there were 3628 no votes.

How do I calculate a ratio?

Ratios compare two numbers, usually by dividing them. If you are comparing one data point (A) to another data point (B), your formula would be A/B. This means you are dividing information A by information B. For example, if A is five and B is 10, your ratio will be 5/10.

Learn more about ratios at

https://brainly.com/question/2328454

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Find the intercepts of the function y = 3x + 9

Answers

Step-by-step explanation:

To solve for the x-intercept, set y=0 then solve for x.

y=−3x−9. 0=−3x−9. 3x=−9.

x=−3 when y=0.

To solve for the y-intercept, set x=0 then solve for y.

y=−3x−9. y=−3(0)−9. y=−9 when x=0.

Hi there!

Y-intercept:

Set the x value to 0:

y = 3(0) + 9

y = 9 --> (0, 9)

X-intercept:

Set the y value to 0:

0 = 3x + 9

Solve for x:

-9 = 3x

x = -3 --> (-3, 0)

During​ spring, young​ moose, unfamiliar with roads and​ traffic, are wandering around at night in a​ province, causing risk and road accidents. Suppose that the average number of road accidents involving moose was per day. The government increased the number of hunting licenses and cleared brush to improve​ drivers' visibility. On one day after these measures were​ implemented, there were road accidents involving moose. ​

Required:
a. What would be the chance of such accidents or​ fewer, assuming the​ government's measures were​ ineffective? ​
b. Do you think the​ government's measures were​ effective? State your reasons clearly.

Answers

Answer: A not b
Because it’s just not

An ecologist finds 220 yellow-flowered plants and 180 white-flowered plants. Use the normal distribution to find the Lower boundary of a 95% confidence interval for the proportion of yellow-flowered plants. Which of the following answers is correct to 2 decimal places?
a. Lower boundary = 0.30
b. Lower boundary = 0.60
c. Lower boundary = 0.50
d. Lower boundary = 0.40

Answers

Answer:

c. Lower boundary = 0.50

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].

An ecologist finds 220 yellow-flowered plants and 180 white-flowered plants.

220 out of 220 + 180 = 400. So

[tex]n = 400, \pi = \frac{220}{400} = 0.55[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].  

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.55 - 1.96\sqrt{\frac{0.55*0.45}{400}} = 0.5[/tex]

Thus the correct answer is given by option c.

please help me!!!!!!!!!!!!​

Answers

Step-by-step explanation:

24. = 249030/30

=8,301 rs

Answer:

24. 8301, divide 249030 by 30

25. 9989001, but i dont know the property

Step-by-step explanation:

given a∥b and c∥d, m<4=35. find m<1, m<2, and m<3
its the rsm problem lesson 6 homework geometry

Answers

Answer:

<2 = 35degrees

<3 = 55degrees

Step-by-step explanation:

Find the diagram attached:

From the diagram:

<3 + <4 = 90

<3 + 35 = 90

<3 = 90 - 35

<3 = 55degrees

Also m<1 + m<2+ m<3 = 180 (sum of angles in a traingle)

90+<2+55=180

145+<2 = 180

<2 = 180 - 145

<2 = 35degrees

The Tres Difficult race helps raise money for charity. According to the website, of the proceeds from ticket sales go directly to charity.
2/5
Last year they made $8000 from ticket sales. How much was given to charity?

Answers

Answer:

3200

Step-by-step explanation:

We need to find 2/5 of the tickets sales

2/5 * 8000

3200

Answer:

3200

Step-by-step explanation:

you need to find what 2/5 is and the you take that away from 8000 and then you have your answer of 3200

pls help i’m dying i don’t know how to do this

Answers

Answer:

the answer that I got is 1

Answer: hi "1" is right, i checked it again ;)

(A) Over 1000 students organized to celebrate running water and electricity. To count the exact number of students protesting, the chief organizer lined the students up in columns of different length. If the students are arranged in columns of 3, 5, and 7, then 2, 3, and 4 people are left out, respectively. What is the minimum number of students present? Solve it with Chinese Remainder Theorem. (B) Prove that for n> 1, if 935 = 5 x 11 x 17 divides n80 – 1, then 5, 11, and 17 do not divide n.

Answers

Solution :

A). x = 2 (mod 3)        [tex]$\mu = 3\times 5 \times 7 = 105$[/tex]

x = 3 (mod 5)       [tex]$y_1=35^{-1} (\mod 3)$[/tex]

x = 4 (mod 7)        [tex]y_1=2[/tex]

[tex]$y_2=21^{-1}(\mod5) = 1$[/tex]

[tex]$y_3=15^{-1}(\mod7) = 1$[/tex]

[tex]$x=2 \times 35 \times 2 + 3\times 21\times 1+4\times 15\times 1$[/tex]

   [tex]=140+63+60[/tex]

   [tex]=263[/tex]

   ≡ 53(mod 105)

Hence the solution is 105 k + 53 > 1000 for k = 10

Therefore, the minimum number of students = 1103

B). [tex]$\phi (935) = 640$[/tex]

By  Eulu's theory

[tex]$935 | a^{640}_n -1$[/tex] if n and 935 are coprime.

Now, [tex]$935|n^{80}-1$[/tex]  and 80 x 8 = 640

[tex]$935|n^{640}-1$[/tex]   ⇒  g(n,935) = 1

                     ⇒ 5, 11, 17 do not divide n

dp/dt = t²p − p + t2 − 1.

Answers

dp/dt = t ² p - p + t ² - 1

Factorize the right side:

dp/dt = p (t ² - 1) + (t ² - 1)

dp/dt = (p + 1) (t ² - 1)

So the differential equation is separable as

dp/(p + 1) = (t ² - 1) dt

Integrate both sides:

∫ dp/(p + 1) = ∫ (t ² - 1) dt

ln|p + 1| = t ³/3 - t + C

Solve for p :

p + 1 = exp(t ³/3 - t + C )

p + 1 = C exp(t ³/3 - t )

p = C exp(t ³/3 - t ) - 1

Find the value of x rounded to the nearest tenth.

Answers

I cannot see whole picture .. although I would say 2.8

A researcher wants to know if calcium is an effective treatment for lowering blood pressure. He assigns one randomly chosen group of volunteers to take calcium supplements; the other group will get placebo. At the end of the treatment period, he measures the difference in blood pressure. The 50 members of the calcium group had blood pressure lowered by an average of 25 points with a standard deviation of 10 points. The 50 members of the placebo group had blood pressure lowered by an average of 15 points with a standard deviation of 8 points. To analyze this information we will use a

Answers

Answer:

Two sample t procedure

Step-by-step explanation:

The two sample t test is used when want to test for equality between two population means. It tests whether the means of the two groups are equal or not equal.

We use this to analyse this information in this question because we do not have data available for the population standard deviation. Also we are to test for the significant difference between the two different groups of participants

Which of the following is the vertical asymptote for the graph below?

Answers

Answer:

C

Step-by-step explanation:

Vertical asymptotes are always in the form x = ?

If you look at the dotted line, it lands on 2.  Because it's a vertical line, the asymptote is going to be x = 2

Simplify. (x+y)/(x^2y)-(x-2y)/(xy^2)

Answers

Math Topic : Algebraic Simplification

Answer:

[tex]{ \tt{ = \frac{(x + y)}{ {x}^{2}y } - \frac{(x - 2y)}{ {xy}^{2} } }} [/tex]

Find the LCM of denominators: x²y²

[tex]{ \tt{ = \frac{y(x + y) - x(x - 2y)}{ {x}^{2} {y}^{2} } }} \\ \\ = { \tt{ \frac{xy + {y}^{2} - {x}^{2} +2xy }{ {x}^{2} {y}^{2} } }}[/tex]

Simplify further:

[tex] = { \tt{ \frac{(y - x)(y + x) +3xy}{ {(xy)}^{2} } }} \\ \\ = { \tt{ \frac{(y - x)(y + x)}{ {(xy)}^{2} } - \frac{3}{xy} }}[/tex]

Drag each tile to the correct box.
Match each equation with its solution.
n =
= -1
n = -25
n = 1
Equation
Solution
12 + 15 = -10
>
-511 = 1
- 13 = -12

Answers

Answer:

n = 1

n = - 1

n = - 1/5

n = - 25

Step-by-step explanation:

We are to obtain the value if n in the given equations :

1.)

n - 13 = - 12

To find, n ;

Add 13 to both sides

n - 13 + 13 = - 12 + 13

n = 1

2.)

n/5 = - 1/5

Multiply both sides by 5

n/5 * 5 = - 1/5 * 5

n = - 1

3.)

-5n = 1

Divide both sides by - 5

-5n/-5 = 1/-5

n = - 1/5

4.)

n + 15 = - 10

Subtract 15 from both sides :

n + 15 - 15 = - 10 - 15

n = - 25

PLEASE HELP with proving lines parallel

Answers

90 mins later we had to go to sleep for sub for two other people that were not

Five friends each spent the same amount of money, x, on school supplies. They expected to spend a total of $130, but the actual
amount spent differed from the expected amount by $15.
Which equation represents the situation? What are the possible amounts that each friend spent?
O
13 - 130 = 15
The amount that each friend spent is $115 or $145.
O
151 - 130 = 15
The amount that each friend spent is $23 or $29.
O
151 + 15 = 130
The amount that each friend spent is $31 or $38.
O
(15.3 – 1300 = 5
The amount that each friend spent is $8 or $9.

Answers

Answer:

its the second option

Step-by-step explanation:

hope this helps

Answer: 5x-130=15

Step-by-step explanation:

edmentum

HELP PLEASE, Function problem

Answers

Answer:

-2

-1

-2

Step-by-step explanation:

please forgive me, but again, this is the simplest of the simplest things. how is that a problem ?

this costs so much more time to just put it in here and then copy answers than just doing it. this is literally a matter of seconds.

the functional value is -2 for all x that are not equal to 2.

and the functional value is -1, when x = 2

so, what is the problem ?

please see my other answer for more details on the solution.

2) If licorice cost $6.59 a pound, how much would it cost to buy a quarter pound of licoric
(Hint: Convert the mixed fraction to an improper fraction or decimal and multiply by th
quantity required)

Answers

Answer:

$1.65

Step-by-step explanation:

[tex]6.59*.25=1.65[/tex]

or

[tex]6.59*\frac{1}{4} =1.65[/tex]

Estimate the square root between two consecutive whole numbers of sqrt [55]

Answers

9514 1404 393

Answer:

  7.4 . . . . between 7 and 8

Step-by-step explanation:

55 is between the perfect squares 49 = 7² and 64 = 8². Using linear interpolation, the square root is approximately 7 +(55-49)/(64-49) = 7 6/15 = 7.4

√55 ≈ 7.4 . . . . approximate root by linear interpolation

_____

Additional comment

A way to improve the estimate of the root is to use the "Babylonian method" of iterating the root. Divide the original number (55) by the estimate of the root, and average that result with the estimate:

  next best guess = (55/7.4 +7.4)/2 = 7 77/185 ≈ 7.4162_162(repeating)

This matches the actual root when rounded to 4 decimal places. The number of accurate decimal places approximately doubles with each iteration.

__

Another way to improve the estimate is to modify the fractional portion. (The above method converges on a root more quickly.) For this, the iteration of the fractional part of the root is ...

  next fractional part = 6/(14 +(fractional part))

where 6/14 is the linear estimate fractional value with 1 subtracted from its denominator.

For one iteration, the new estimate of the fractional part is 6/(14 +6/15) = 5/12, so the root estimate is about 7.4167 compared to the above 7.4162.

Question
Elvira and Aletheia live 3.2 miles apart on the same street. They are in a study group that meets at a coffee shop between their houses. It took Elvira 1/2 hour and Aletheia 2/3 hour to walk to the coffee shop. Find both women's walking speeds.

Answers

Missing from the question

Aletheia's speed is 0.6 miles per hour slower than Elvira's speed.

Answer:

[tex]s_E = 3.0[/tex]

[tex]s_A = 2.4[/tex]

Step-by-step explanation:

Given

[tex]d = 3.2m[/tex] -- distance

[tex]t_E = 1/2[/tex] --- Elvira time

[tex]t_A = 2/3[/tex] --- Aletheia time

[tex]s_E - s_A = 0.6[/tex] --- the relationship between their speeds

Required

Their walking speed

Distance (d) is calculated as:

[tex]d = speed * time[/tex]

For Elvira, we have:

[tex]d_E = s_E * 1/2[/tex]

For Aletheia, we have:

[tex]d_A = s_A * 2/3[/tex]

So, we have:

[tex]d_E + d_A = d[/tex] --- total distance

This gives:

[tex]s_E * 1/2 + s_A * 2/3 = 3.2[/tex]

Recall that:

[tex]s_E - s_A = 0.6[/tex]

Make sE the subject

[tex]s_E = 0.6+s_A[/tex]

Substitute [tex]s_E = 0.6+s_A[/tex] in [tex]s_E * 1/2 + s_A * 2/3 = 3.2[/tex]

[tex](0.6+s_A)* 1/2 + s_A * 2/3 = 3.2[/tex]

[tex]0.3+1/2s_A + 2/3s_A = 3.2[/tex]

Collect like terms

[tex]1/2s_A + 2/3s_A = 3.2-0.3[/tex]

[tex]1/2s_A + 2/3s_A = 2.9[/tex]

Express all as decimal

[tex]0.5s_A + 0.7s_A= 2.9[/tex]

[tex]1.2s_A= 2.9[/tex]

Divide both sides by 1.2

[tex]s_A = 2.4[/tex]

Recall that:

[tex]s_E = 0.6+s_A[/tex]

So, we have:

[tex]s_E = 0.6+2.4[/tex]

[tex]s_E = 3.0[/tex]  

solve please 14a⁹b-8a³d÷ 2a³​

Answers

Answer:

7a^6b-4d

Step-by-step explanation:

[tex]\frac{14a^9b - 8a^3d}{2a^3} \\\frac{2a^3(7a^6b - 4d)}{2a^3} \\\\7a^6b-4d[/tex]

equation for perpendicular to the line -7x + 3y = -10j contains the point (-2,-4)

Answers

Answer:

y = 7/3x + 2/3

Step-by-step explanation:

-7x + 3y = -10

3y = 7x - 10

y = 7/3x - 10/3

-4 = 7/3(-2) + b

-4 = -14/3 + b

2/3 = b

he following chart reports the number of cell phones sold at a big-box retail store for the last 26 days. a. What are the maximum and the minimum numbers of cell phones sold in a day? b. Using the median, what is the typical number of cell phones sold?

Answers

Answer:

Maximum = 19

Minimum = 4

Median = 12

Step-by-step explanation:

The maximum number of phone sold per day is the value to the right of the horizontal axis as the values are arranged in ascending order ; Hence, the maximum number of phones sold per day is 19

Also, the minimum number of phones sold per day is the value to the left of the plot, Hence, minimum number of phones sold per day is 14.

The Median value : 4, 9, 14, 19

The median = 1/2(n+1)th term

1/2(5)th term = 2.5 th term

Median (9 + 14) /2 = 13 /2 = 11.5 = 12 phones

Aiden is a spice trader. He sells any amount of cumin seeds from 1 kilogram to 1000 kilograms. He charges $5 for 1 kilogram and $2000 for 1000 kilograms.

p(w) models the price (in dollars) of w kilograms of cumin seeds in Aiden's shop.

Which number is more appropriate for the domain of p?
Choose 1 answer:

A. Integers
B. Real Numbers

What's the appropriate domain?
Choose 1 answer:

A. 5 ≤ w ≤ 1000
B. 5 ≤ w ≤ 2000
C. 1 ≤ w ≤ 1000
D. 1 ≤ w ≤ 2000

Answers

Answer:

A and B

Step-by-step explanation:

Domain of P should be Integers and it should vary from 1 to 2000

The number is more appropriate for the domain of 'p' is real numbers.

The appropriate domain can be represented as (1 ≤ w ≤ 1000).

What is the domain of a function?

"The domain of a function is the set of inputs accepted by the function."

Given, Aiden sells any amount of cumin seeds from 1 kilogram to 1000 kilograms.

He charges $5 for 1 kilogram and $2000 for 1000 kilograms.

w = the weight of the cumin seeds

Therefore, it can be represented as (1 ≤ w ≤ 1000).

p(w) = the price of w kg cumin seeds.

It can be represented as (5 ≤ p(w) ≤ 2000).

This domain is of real numbers.

Learn more about the domain of a function here: https://brainly.com/question/17354444

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If you apply the changes below to the cube root parent function, F(x) = 3/x
what is the equation of the new function?
• Translate 1 unit right.
• Translate 1 unit up.
A. G(x) = 3/x-1+1
B. G(x) = 3/x +1-1
C. G(x) =3/ x - 1-1
D. G(x) = 3/x+1+1

Answers

9514 1404 393

Answer:

  A.  G(x) = ∛(x -1) +1

Step-by-step explanation:

The transformation f(x-h) +k represents a translation (right, up) by (h, k) of the parent function f(x).

Your translation of f(x) = ∛x by (1, 1) will give you the function ...

  G(x) = ∛(x -1) +1

Consider the probability that no more than 76 out of 504 computers will crash in a day. Choose the best description of the area under the normal curve that would be used to approximate binomial probability.

a. Area to the right of 75.5
b. Area to the right of 76.5
c. Area to the left of 75.5
d. Area to the left of 76.5
e. Area between 75.5 and 76.5

Answers

Answer:

e

Step-by-step explanation:

Find the exact values of the six trigonometric functions at “a” given cos(2a) = - 4/5 and a is
in the 2nd quadrant.

Answers

If a is in the second quadrant, then cos(a) < 0 and sin(a) > 0.

Recall the double angle identity for cosine:

cos(2a) = 2 cos²(a) - 1 = 1 - 2 sin²(a)

It follows that

2 cos²(a) - 1 = -4/5   ==>   cos²(a) = 1/10   ==>   cos(a) = -1/√10

1 - 2 sin²(a) = -4/5   ==>   sin²(a) = 9/10   ==>   sin(a) = 3/√10

Then we find

1/cos(a) = sec(a) = -√10

1/sin(a) = csc(a) = √10/3

sin(a)/cos(a) = tan(a) = -3

1/tan(a) = cot(a) = -1/3

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Which of the following theorems verifies that ANPO- AXYZ? Which of the following statements about continuous variables isA. continuous variables must lie between a clearly defined intervalB. continuous variables may be restricted to positive valuesC. continuous variables will never be nonzeroD. continuous variables must always be restricted to positive values 7t + 6 + 3v + 6vHey can someone help ne Sound is an example of a:Select one:O a. rolling wavesb. longitudinal waveO c. traverse wavesO d. surface waveEz Physics question will mark brainliest. The rate at which revenue was generated (in millions of dollars per year) for a certain company for the years 2010 through 2016 can be approximated by f(t)=348e0.22t (10t16), where t=10 corresponds to the start of the year 2010. Find and interpret 1016f(t)dt. - C b qut, bt u bao gi c cng qut th dy thn kinh ca ngi.Anh ny li say kht ri!Hn xng li gn, o ngc mt, gi ci tay ln na chng:- Bm khng , bm tht l khng say. Con n xin c cho con i t, m nu khng c th... th... tha c...- Hn mc mi ti, tm mt ci g, hn gi ra: l mt con dao nh nhng rt sc. Hn nghin rng ni tip:- Vng, bm c khng c th con phi m cht dm ba thng ri c bt con gii huyn.- Ri hn ci xung, tn mn gt cnh ci bn lim. C b ci khanh khch c vn t ph hn i ci ci To Tho y, c ng ln v vai hn m bo rng:- Anh ba lm. Nhng ny anh Ch , anh mun m ngi cng khng kh g. i To n cn n ti nm mi ng y, anh chu kh n i cho ti, i c t nhin c vn. si a 12 g del soluto se aaden a 100 g de agua a 20 C se que disolvera? Justifica The difference between interior angle in centesimal measurement and sexagesimal measurement is 15 of a regular polygon. Find the number of sides of the polygon. 4Which term describes powers that are shared by the national and state governments?OA. ImpliedOB.Inherent.concurrentODreservedResetNext someone help me with this find points a b c Solve for x.A) - 9C) -5B) -11D) 10 Question 1 (5 points) Evan's coworker, Jerry, has just been promoted and is now Evan's supervisor. Evan had really wanted the job, but now he has a new boss, who used to be his peer. What should he do? a) Refuse to work under Jerry O b) Start looking for a new job O C) Give Jerry a chance as his new boss O d) Avoid Jerry and just focus on the work to make 400 gram solution with a mass by a mass concentration of 6 % how much salt and water you need to mix The seven main functions of marketing summarize what it takes to _____. An architect was designing a rectangular room with a length of 16 feet, a width of 14 feet,and a height of 10 feet.What is the volume, in cubic feet of the room?Show your workcubic feetAnswerThe architect changed his design and added 2 feet to the length and width of the room.In cubic feet, how much greater is the volume of the room in his new design?Show your workcubic feetAnswerHurrryyy knowww How did the world respond to kristallnacht? Can Some One Please Help Me PLS HELP !! Is the following a fair sampling of the contents of the jar? Why?Pour a 2 layer of lentils into a jar. Then pour a 2 layer of kidney beans into the jar. Then pour a 2 layer of pinto beans into the jar. Stir the contents of the jar well. Then pull out a handful of beans. Giving brainliest to the best answer! Why is mailing may a good story/book? Can someone please research this! factor and solve problem in picture pleaseeee