Currently stuck on this problem. Can someone help me solve this? I don’t understand.

Currently Stuck On This Problem. Can Someone Help Me Solve This? I Dont Understand.

Answers

Answer 1

Step-by-step explanation:

the correct one is a = (-b)/2


Related Questions

R(-9, 4) and S(2, -1); Find T.

Answers

Answer:

AYYYYYYYYYYYYYYYYYYYYY

Step-by-step explanation:

Maria is asked to write down a prime number between 10 and 20 she writes down 17 is she right explain your answer​

Answers

Answer:

YES

Step-by-step explanation:

PRIME NUMBER BETWEEN 10 & 20 ARE 11,13,17,19-four

Step-by-step explanation:

it has no factor excluding 1 and itself

What is the value of n?

Answers

Answer:

A

Step-by-step explanation:

180-133= 47

180-142= 38

47+38= 85

180-85= 95

If the inside of n is 95, n has to be  85

simplify the following expression <3

Answers

Answer:

4x^12y^6/z^5

Step-by-step explanation:

See image below:)  

FYI you can use the app photo math, you just take a pic of the problem and it gives you the answer and explains the steps and it is free.

Find the area of the figure shown

Answers

Answer:

Step-by-step explanation:

Can someone help me please

Answers

Answer:

A

Step-by-step explanation:

Answer: It has to be A

Step-by-step explanation: It's the only statement that makes sense.

What is the slope of the line graphed below?
(-2,2)
(3, 1)

Answers

Answer:

hey. your questions is not complete. pls add an attachment of the graph to your question

Answer:

[tex]-\frac{1}{5}[/tex]

Step-by-step explanation:

To find the slope, the formula is [tex]\frac{y2-y1}{x2-x1}[/tex]

[tex]\frac{1-2}{3-(-2)}=-\frac{1}{5}[/tex]

Hope this helps

11. Choose the proportion that represents this problem:
If one meter is approximately 3.28 ft, how many meters are
in 20 ft?
a) 3.28
20
b) 3.28
20
1
1
m
O ) c) 3.28
20
1
d) 20
3.28
1
m
т

Answers

Answer:

D is the answer

Step-by-step explanation:

please help me simplify the expression and please show work!!! <3

Answers

Step-by-step explanation:

[tex] \frac{x + 4}{3 {x}^{2} - 12x - 96} = \frac{x + 4}{3( {x}^{2} - 4x - 32) } = \frac{x + 4}{3(x - 8)(x + 4)} [/tex]

[tex] = \frac{1}{3(x - 8)} = \frac{1}{3x - 24} [/tex]

Write the following series in sigma notation. 8+18+28+38

Answers

Answer:

[tex]\Sigma\left {n} \atop {1}} \right. (5n^2+3n)[/tex]

Step-by-step explanation:

Given the series 8 + 18 + 28 + 38

First, we need to find the sum of the nth term of the sequence as shown

Sn = n/2[2a+(n-1)d]

n is the number of terms

a is the first term  = 8

d is the common difference = 18-8 = 28-18 = 10

Substitute

Sn = n/2 [2(8)+(n-1)*10]

Sn = n/2 [16+10n-10]

Sn = n/2[10n+6]

Sn = 2n/2(5n+3)

Sn = n(5n+3)

Sn = 5n²+3n

In Sigma form;

[tex]\Sigma\left {n} \atop {1}} \right. (5n^2+3n)[/tex]

I need the answer find the value of x

Answers

Answer:

1. x = 126

angle POS = 33

2. x = 31

angle MOL = 118

Step-by-step explanation:

for question one, 147 degrees equals x + 21

so x = 126

147 plus 147 equals 294

360-294 equals 66

66/2 equals angle POS

angle POS = 33

for question 2, 62 degrees equals 2x

62 divided by 2 is 31

x = 31

62 + 62 = 124

360-124 = 236

236/2 = 118

angle MOL = 118

Answer:76

Step-by-step explanation:

67

Select the correct answer from each drop-down menu.
What is the end behavior of function h?
h(x) = -4x2 + 11
As x approaches negative infinity, h(x) approaches
As x approaches positive infinity, h(x) approaches

Answers

Answer:

The first is negative and the second is also negative. Just took the test and passed.

Step-by-step explanation: Step by Step

Because the variable has an even power, we will see that:

As x approaches -∞, h(x) approaches -∞As x approaches ∞, h(x) approaches -∞.

What is the end behavior of h(x)?

Here we have h(x) = -4x^2 + 11

Notice that the variable is squared, this means that the sign does not matter, the outcome of:

-4x^2 will always be negative. So in both ends (when x tends to infinity and negative infinity), we will have the same end behavior.

When we take that limit, -4x^2 will just tend to negative infinity, then in both cases, the function tends to negative infinity.

So we have:

As x approaches negative infinity, h(x) approaches negative infinity.As x approaches positive infinity, h(x) approaches negative infinity.

If you want to learn more about limits, you can read:

https://brainly.com/question/5313449

What is the volume of the rectangular prism?
3 cm
8 cm
2 cm
cm3

Answers

Answer:

48 cm^3

Step-by-step explanation:

Since there is no image, I’m just going to assume that these three measurement are the length, width, and height of the rectangular prism:

The formula for the volume of a rectangular prism is length x width x height.

Use formula with given dimensions:

3 x 8 x 2 = 48

Volume is measured in cubic centimeters

(cm in this case)

Therefore, the volume of the rectangular prism is 48 cm^3

Hope this helps!

In the 30-60-90 triangle below, side s has a length of ___ and side q has a length of ___.

Answers

Answer:

The answer is D.

Step-by-step explanation:

The side lengths for this special triangle is represented with x, x[tex]\sqrt{3}[/tex] , and 2x

if the side length that sees 90 degrees is 10 (2x and x = 5 in this case)

so s (the side length that sees 30 degrees) is = 5

and q (the side length that sees 60 degrees) = 5[tex]\sqrt{3}[/tex]

Alguien puede ayudarme?

Answers

Answer:

I don’t understand you language

Step-by-step explanation:

Make it in English

2x+ 4y =16 -2x- 3y = -6 solve this system of equations using the elimination method

Answers

[tex] \large{ \boxed{ \boxed{ \tt{☂ \: OUR \: FINAL \: ANSWER : \underline{ \tt {x = - 12 \: and \: y = 10}}}}}✓}[/tex]

See the attached picture! Let me know if you have any questions regarding my answer! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Answer:

[tex] \small \sf \: x = - 12 \: \: and \: y = 10[/tex]

Step-by-step explanation:

2x + 4y = 16.

-2x - 3y = -6

Add both equation ;

[tex] \small \sf \: \: \: \: \: 2x + 4y = 16 \\ + \small \sf \: \: \underline{ -2x - 3y = -6 }\\ \small \sf \: \: \: \: \: \underline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \ \blue{y = 10}} [/tex]

Therefore , y = 10

Substitute the value of y in the first equation

2x + 4 = 16

2 x + 4 × (10) = 16

2x + 40 = 16

subtract 40 from both side

2x + 40 - 40 = 16 - 40

2x = - 24

divide each side by 2

2x/ 2 = - 24 / 2

x = - 12

The_____ is the result of the sum of the numbers being divided by how many numbers are in set.

Answers

Answer:

Mean

Step-by-step explanation:

Mean

less precisely called the average

Thirty less than four times a number is fifty

Answers

4x-30= 50

mark me brainliestttt :))

Answer:

The number is 20

Step-by-step explanation:

Let the number be x

Four times the number means = 4x

30 less than the number is 50 means = 4x - 30 = 50

Solve for x :

      4x - 30 = 50

      4x - 30 + 30 = 50 + 30           [ adding 30 on both sides ]

                 4x = 80                       [ - 30 + 30 = 0 ]

                   x = 20                       [ dividing by 4 on both sides ]

Name two grouping symbols.​

Answers

Answer:

parentheses ( ), brackets [ ], and braces { }—are used to group numbers or variables (letters

Step-by-step explanation:

I put three for if u need hope this helps:)

Parentheses & brackets

Find the product of (x + 3) (x - 18)

Answers

Answer:

x^2-15x-54

Step-by-step explanation:

(x+3)(x-18) Multiply them all

x^2-18x+3x-54

ans=x^2-15x-54

Write the formula for the area of a trapezoid

Answers

Answer:

Step-by-step explanation:

A=(a+b)/2 x h.

In triangle ABC, the size of the B is 4 times the size of angle A, and the size of angle C is 14 cel less than 5 times the size of the.

The size of angle a is ____
The size of angle b is____
The size of angle c is________

Answers

Answer:

[tex]A = 19.4[/tex]

[tex]B = 77.6[/tex]

[tex]C =83[/tex]

Step-by-step explanation:

Given

By interpreting each line, we have:

[tex]B = 4A[/tex]

[tex]C = 5A -14[/tex]

Required

Solve for A, B and C

In a triangle,

[tex]A + B + C = 180[/tex]

Substitute expressions for B and C

[tex]A + 4A + 5A - 14 = 180[/tex]

[tex]A + 4A + 5A = 180+14[/tex]

[tex]10A = 194[/tex]

Solve for A

[tex]A = 194/10[/tex]

[tex]A = 19.4[/tex]

[tex]B = 4A[/tex]

[tex]B = 4 * 19.4[/tex]

[tex]B = 77.6[/tex]

[tex]C = 5A -14[/tex]

[tex]C =5 * 19.4 - 14[/tex]

[tex]C =83[/tex]

Thirty-five percent of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your results.

Answers

Answer:

Hence the true proportion is (0.388, 0.492).

Step-by-step explanation:

Given n=250,

[tex]p= 110/250 =0.44[/tex]

[tex]a=0.1, |Z(0.05)|=1.645[/tex] (check standard normal table)  

So 90% CI is

[tex]p ± Z*√[p*(1-p)/n]\\0.44 ± 1.645*sqrt(0.44*(1-0.44)/250)\\ ( 0.388, 0.492)[/tex]

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp

Answers

Answer:

4. 52sq.ft

5.25sq.ft

Step-by-step explanation:

In attachment

Suppose X is a random variable with a mean of 10 and a variance of 100. Suppose Y is a random variable with a mean of 2 and a standard deviation of 16. Also, suppose X and Y are independent. What is the mean of 10 X + 3 Y?

Answers

Answer:

[tex]E(10x + 3y) =106[/tex]

Step-by-step explanation:

Given

[tex]E(x) =10[/tex]

[tex]Var(x) = 100[/tex]

[tex]E(y) =2[/tex]

[tex]Var(y) = 16[/tex]

Required

[tex]E(10x + 3y)[/tex]

To do this, we make use of the following equation

[tex]E(ax + by) =aE(x) + bE(y)[/tex]

So, we have:

[tex]E(10x + 3y) =10 * E(x) + 3 *E(y)[/tex]

[tex]E(10x + 3y) =10 * 10 + 3 *2[/tex]

[tex]E(10x + 3y) =100 + 6[/tex]

[tex]E(10x + 3y) =106[/tex]

Trigonometry please help

Answers

Answer:

7.5

Step-by-step explanation:

[tex]x = 10 \tan \: 37 \degree \\ \\ \therefore \: x = 7.535540501 \\ \\ \therefore \: x \approx 7.5[/tex]

Answer:

x = 7.5

Step-by-step explanation:

tan = opp/adj

tan 37 = x/10

multiply both sides by 10

10 * tan37 = x

x = 7.535540501027942

Rounded

x = 7.5

The hypotenuse of a right triangle Measures 17 cm and one of its legs measures 8 cm. find the measure of the other leg if necessary round to the nearest 10th

Answers

8^2+b^2=17^2
64+b^2=289
b^2=289-64
b^2=225
b=15
the measure of the other leg is 15 cm

Which of the following best shows the distributive property?
1. 2(2 - 3) = 2(-1)
2. 2(2 - 3) = 2(2) - 2(3)
3. 2 - 3 = (-3) + 2
4. 2 + (2 - 3) = (2 - 2) + 3

Answers

The answer is 2 because distributive property means that you can multiply with the numbers inside of the parentheses and still get the same answer

Answer:

number 2

Step-by-step explanation:

2x2=4

2x-3=-6

4-6=-2

2x2=4

-2x3=-6

4-6=-2

Lola tossed a coin twice. She made a tree diagram to show the possible outcomes. Which tree diagram shows the sample space for two tosses of a coin?

Answers

Step-by-step explanation:

note : H for head, T for tail

Rhombus ABCD has a diagonal BD¯¯¯¯¯. m∠ADB=(5x+10)° m∠CDB=(4x+19)° What is the m∠ADC ? Enter your answer in the box º

30 POINTS PLEASE HELP ASAP

Answers

Answer:

110°

Step-by-step explanation:

5x+10=4x+19

5x-4x =19-10

x = 9

m L ADB = 5(9)+10=45+10=55°

so m L ADC = 2×55° = 110°

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