PLS HELP FAST

Write each rational number as a fraction.

a. -2

b. 2.5

c. 1 3/5

Answers

Answer 1

Answer:

a) -2/1

b) 5/2

c) 8/5

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

[tex]a)-2=\frac{-2}{1}\\\\b)2.5=\frac{25}{10}=\frac{5}{2}\\\\c)1\frac{3}{5}=\frac{8}{5}[/tex]


Related Questions

Solve the equation using the quadratic formula: 2x^2-5x+2=0

Answers

Answer:

x= 2, 1/2

Step-by-step explanation:

x= b±√b²-4ac/2a

x = [5±√(-5)²-4·(2·2)]/2·2

x = (5±3)/4

x= 2, 1/2

Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8
Plz help:(
A)(-2,3)
B)(1,3)
C)(3,2)
D)(6,12)

Answers

Answer:

A

Step-by-step explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

2y = 6

÷2. ÷2

y = 3

If P(A) = 0.25, P(B) = 0.60 and P(A and B) = 0.15, are the event A and B independent? Explain/show work.

Answers

Answer:

event A and B are independent because  P(A and B)  = P(A) x P(B) = 0.15

Step-by-step explanation:

When two events are independent, the probability of both occurring is the product of their separate probabilities, as expressed below;

P(A and B)  = P(A) x P(B)

Given;

P(A) =  0.25

P(B) = 0.60

P(A and B) = 0.15

Now, let's check if  P(A and B) will be equal to P(A) x P(B)

P(A) x P(B) =  0.25 x 0.60 = 0.15

P(A and B)  = P(A) x P(B), thus event A and B are independent.

Translate “4 less than five times a number is –11” into a mathematical equation.

Answers

4 less than five times a number is -11:
5x - 4 = -11

Sharice buys a vintage video game for $10, then marks up the price 40%. How much did she raise the price?

Answers

Answer:

By 4 dollars so the final price is 14$

Step-by-step explanation:

Answer:She raised the price $4.

Step-by-step explanation: Multiply 10 and .40 to get $4.

The shark dove down 48 feet in 6 minutes. How many feet did the shark dive down per minute?

Answers

Answer:

8 ft per minute

Step-by-step explanation:

Take the number of feet and divide by the number of minutes

48 ft / 6 minutes

8 ft per minute

The answer is 8 sorry if I am wrong

Use the given circle. Find the length s to the nearest tenth.

a) 10.5 in
b) 5.2 in
c) 3.3 in
d) 20.9 in

Answers

Answer: its A

Step-by-step explanation:

Any smooth curve connecting two points is called an arc. The length of arc s to the nearest tenth is 10.5 in.

What is the Length of an Arc?

Any smooth curve connecting two points is called an arc. The arc length is the measurement of how long an arc is. The length of an arc is given by the formula,

[tex]\rm{ Length\ of\ an\ Arc = 2\times \pi \times(radius)\times\dfrac{\theta}{360} = 2\pi r \times \dfrac{\theta}{2\pi}[/tex]

where θ is the angle, which arc creates at the center of the circle in degree.

The length of the given arc s, with an angle made at the center equal to (2/3)π and radius of 5 inches can be represented as,

[tex]\text{Length of Arc} = 2\pi r \times \dfrac{\theta}{2\pi}[/tex]

[tex]\text{Length of Arc s} = 2\pi \times (5)\times \dfrac{\frac23\pi}{2\pi}[/tex]

                        [tex]=10.472\approx 10.5\rm\ in[/tex]

Thus, the length of arc s to the nearest tenth is 10.5 in.

Learn more about Length of an Arc:

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need help mark brain 30 points

Answers

Answer:

(6000)(0.03)(5)=$900

(1500)(0.0425)(4)=$255

(580)(0.02)(6)=$69.60

(1200)(0.039)(2.5)=$117

Find the surface area of the figure. Round the the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

surface area of cylinder=2πrh

SA=1/2×2×π×3×25+2 ×(1/2×π×3²)=75π+9π=84π≈84×3.14≈263.76 cm²

if lowerside is also counted  then area of lower side=25×6=150

total surface area=263.76+150=413.76 cm²

if we take π=22/7

84 π=84×22/7=12×22=264 cm²

if base is also counted then area=264+150=414 cm²

which statement must be true

Answers

Answer:

(C)

Step-by-step explanation:

AD and BC are parallel to each other. They are the same distance but they never touch.  

Your best answer would be C.

Brainilest appreciated.

Using the slope formula find the slope of a line that contains these two points: (1,-19), (-2,-7)

Answers

Answer:

The slope of the line is -4

Step-by-step explanation:

Slope: (y2-y1) / (x2-x1)

(-7-(-19)) / (-2-1)

(12) / (-3)

= -4

HELP PLEASE!!
There are 12 students in a class: 7 boys and 5 girls. If the teacher picks a group of 5 at random, what is the probability that everyone in the group is a boy?

Answers

Answer:

0.027

Step-by-step explanation:

The number of groups of 5 boys that we can have from 7 boys is 7C5 = 21

The number of groups of 5 boys that we can have from 12 students is

12C5 = 792

then the probability = 21/792 = 0.026515151515

by the way you can calculate 12C5 and 7C5 using a calculator.

help me answer this question

Answers

Answer: Sorry i whould help but I cant see it can you put it more bigger

Step-by-step explanation:

How much will the guitar be worth in 10 years?

Answers

Answer:

$44487

Step-by-step explanation:

If you plug in 10 for t, you are left with the following equation:

[tex]V=12000(1.14)^{10}=12000\cdot 3.7072\approx 44487[/tex]. Hope this helps!

Answer: $44,487

Step-by-step explanation:

To solve this, substitute t (the variable for time in the equation) with 10 to represent the value of the guitar after 10 years.

[tex]V = 12000(1.14)^{10}\\V = 12000*3.7072\\\\V = 44487[/tex]

The guitar will be worth $44,487 in 10 years.

I will mark brainliest! The question is the image attached, please help!

Answers

Answer:

x=20 and y=128.Option 2

Step-by-step explanation:

Since,the angles are vertically opposite,they are equal(property)

Therefore,

(3x-8)=(2x+12)

3x-8=2x+12

3x-2x=12+8

x=20,

Now,

Since,the angles are formed in a straight line,their sum is equal to 180(property)

Therefore,

y+(2x+12)=180

y+2×20=180-12

y=168-40

y=128

Therefore,x=20 and y=128

option 2 would be your answer because it explains the missing part where y is.

Enter all answers to the nearest tenth.

A day care program has an average daily expense of $75.00. The standard deviation is $5.00. The owner takes a sample of 64 bills. What is the probability the mean of his sample will be between $70.00 and $80.00?
Step 1. Calculate a z-score for $70.00 -
Step 2. Give the probability for step 1. %
Step 3. Calculate the z-score for $80.00 +
Step 4. Give the probability for step 3. %
Step 5. Add the probabilities from steps 2&4. %



Answers

Answer:

What is  the probability the mean of his sample will be between $70.00 and $80.00? = 64/64 =1

s1) = 99% =z score = 127/128

s2)64/64 = 1

s3)95% of 64 = 123/128

s4) p) step 3 = 95% of 64 = 60.08 /64 = 60/64 = 93.75%

s5) P)of 2+4 = 283/292 = 96.92%

For the data set 6, 5, 10, 11, 13, the mean, X, is 9. What is the standard
deviation?

Answers

Answer:

standard deviation = 3.0331

Step-by-step explanation:

You can solve for this two different ways.

If you have a TI-84 calculator or something similar, type all the data into list 1. Then click the stat button, then the calc button, then 1-vars stats. This will give you mean, standard deviation, median, mode, etc.

If you are solving by hand, find the different between each data point and the mean. Square these numbers and find the average. Then take the square root of that.

3^2 + 4^2 + 1^2 + 2^2 + 4^2 = 46

46/5 = 9.2

square root of 9.2 = 3.0331

Hope this is helpful!!!!!!!!!!! :)

2. Simplify.
–48
O A. 4213
OB. -4213
O C.-4v3
OD. 4V3

Answers

D
48
2 24
12 2
6 2
3 2
2•2V3
4V3

guys i’m begging someone help me please!!!!

Answers

Answer:

x= 35

Step-by-step explanation:

supposing we are finding x, we know that the line in the middle is the dimeter. so we know its a semicircle with an arc of 180 degrees. 180-110=70 divide that by two to get x which is 35.

The answer is x=35 I’m pretty sure is right

for which value of x is the row in the table of values incorrect? the function is the quadratic function y=-1/2x^2


A.)x = 0

B.)x = 3

C.) x = 2

D.)x = 5

Answers

Answer:

D. x = 5

Step-by-step explanation:

At x = 5

y = -½(5)²

y = -½ × 25 = -25/2 = -12½

Answer: x=5

Step-by-step explanation:

Which set of numbers is correctly ordered from least to greatest?
24 x 63
5.7 15.758,956 V
63
24 x
S
15.758
4.956 Ve
9566 15.753, 24, 49
63
956 /
15.758
24 x
5

Answers

Answer:

The set of numbers that is correctly ordered from least to greatest is 5.7, 15.758, 24, 49, 63. Is there anything else you would like to know?

Gia’s gross annual salary is $46,392.

What is the recommended maximum monthly rent she should pay?


$1082


$1648


$1933

Answers

Answer: I think it might be 1933.

Step-by-step explanation

I hope it helped if not sorry. :/

Michael has $10 in his savings account. Option 1 will add $100 to his account each week. Option 2 will double the amount in his account at the end of each week. Michael wants to have at least $700 in his account at the end of 7 weeks to buy a mountain bike.

Answers

Answer:

i am thinking option 1

Step-by-step explanation:

i may be wrong if i am correct me

Hello there i hope you are having a great day :) Your Question : Michael has $10 in his savings account. Option 1 will add $100 to his account each week. Option 2 will double the amount in his account at the end of each week. Michael wants to have at least $700 in his account at the end of 7 weeks to buy a mountain bike. Answer : So the first Michael has $10 in hes saving account. Option 1 puts $100 in each week so 7 weeks would equal to 7 weeks x $100 = $700 that would equal the amount for the bike in 7 weeks or Option 2 Will double the amount in hes account each week so $10 x 2 = $20. 1 week $20 2 week $40 3 week $80 4 week $120 5 week $240 6 week $480 7 week $960. So the Option two Is the best one as Option one would equal to $700 and Option two $960 that would equal left over $260. Hopefully that helps you ❤

Pythagorean Theorem: How many yards will the players have to run?

Answers

Answer:

≈ 125.3

Step-by-step explanation:

If we're using the Pythagorean Theorem to solve this, then the formula is:

[tex]a^{2}+ b^{2} =c^{2}[/tex]

So basically, by using this formula, you're finding the length that the soccer players will run diagonally. Plug in the numbers:

[tex]110^2 + 60^2 = c^2[/tex]

12100 + 3600 = [tex]c^2[/tex]

15700 = [tex]c^2[/tex]

Take the square root:

15700 = [tex]c^2[/tex]

[tex]\sqrt{15700} = \sqrt{c^2}[/tex]

125.3 ≈ c

Which two terms are interchangeable

Answers

Answer:

C hope this helped :D if not plz let me know..

The terms that are interchangeable are axioms and postulates.

What are Axioms and Postulates ?

"In mathematics or logic, an axiom is an unprovable rule or first principle accepted as true because it is self-evident or particularly useful. “Nothing can both be and not be at the same time and in the same respect” is an example of an axiom"

"The term is often used interchangeably with postulate, though the latter term is sometimes reserved for mathematical applications (such as the postulates of Euclidean geometry). It should be contrasted with a theorem, which requires a rigorous proof."

By the definition of Axiom and postulates,

It is clear that Axiom and postulates are interchangeable, since they both used as a unprovable rule.

Hence A is the correct option.

To know more about axioms and postulates here

https://brainly.com/question/10665597

#SPJ2

what is the inequality

Answers

Answer:

An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value. a ≠ b says that a is not equal to b. a < b says that a is less than b. a > b says that a is greater than b.

consider the following three equations:
linear: y=20x+300
Quadratic: y=5x^2
Exponential: y=10(1.4)^x
use the equations to answer the following questions. Support your answers with work.
1. At an x-value of 11, which equation has the largest y-value?
2. what is the smallest integer value of x for which the value of the exponential equation is greater than the values of both the linear and quadratic functions?

Answers

Answer:

1.

y = 20(11) + 300 = 520

y = 5(11)(11) = 605    

y = 10(1.4)^11 = 404.96

hence the quadratic formula - y = 5x^2 has the largest y-value

2.

y = 20 (14) + 300 = 580

y = 5 (14) (14) = 980

y = 10(1.4)^ 14 = 1111.20   >    this is greater than both equations above

14 is the smallest value of x for which the value of the exponential equation is greater than the values of both the linear and quadratic functions

Step-by-step explanation:

Answer:

1. Quadratic

2. x = 14

Step-by-step explanation:

1. At x = 11

linear: y=20(11) + 300 = 520

Quadratic: y=5× 11² = 605

Exponential: y=10(1.4)¹¹ = 404.956517

2. 10(1.4^x) > 20x + 300

1.4^x > 2x + 30

1.4^x - 2x - 30 > 0

Using trial method:

x > 11

10(1.4^x) > 5x²

1.4^x - 0.5x² > 0

Using trail method:

x > 13

The smallest positive integer which satisfies both inequalities is 14

Mr. Eichmann 's salary is $42,000. This year, he receives a raise of 7%. What will be his salary this year?

Answers

His salary will be 44,940. 7 percent of 42,000 is 2,940, added to his 42,000 dollar salary gives you $44,940

What's the numerator for the following rational
expression?
7/v+3/v=?/v

Answers

Answer:

54inches 43inches are the 53364inches rye 5t337 the earth stud is 37feet of the 368feet

Answer:

10

Step-by-step explanation:

they all have the same denominator so the only focus is adding the 7+3

mike had a balance of $175 in his bank account at the start of the week.He withdrew $65.00 on Monday, $43.25 on Wednesday, and $56.45 on Thursday.On Friday he deposited $165.30.
1.At the end of the week, does Mike have more or less money in his savings account than he had at the beginning of the week?
2.How much more or less?
3.Show all of your work to support your answers.

Answers

Answer:

1. Mike has more money in his savings account than he had at the beginning of he week

2. $0.6 more

3. Current Balance is $175 + $165.30 - $164.7 = $175.6

Step-by-step explanation:

The question is of the format of a word problem, hence we have;

Initial balance in Mike's bank account                                              = $175

Withdrawal on Monday                         = $65.00

Withdrawal on Wednesday                   = $43.25

Withdrawal on Thursday                       = $56.45

Deposit on Friday                                                           = $165.30

Total withdrawal                                     = $164.7                      

Therefore we have;

Current Balance = Initial balance + total deposit - total withdrawal            

∴ Current Balance = $175 + $165.30 - $164.7 = $175.6

1. Therefore, based on the above calculations, Mike has more money in his savings account than he had at the beginning of he week

2. Mike has $0.6 more.

3. Current Balance = Initial balance + total deposit - total withdrawal            

∴ Current Balance = $175 + $165.30 - $164.7 = $175.6.

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