−5 1/5÷(2/3) help plz

Answer:

25

Step-by-step explanation:

mean = SUM/#of values

(20+22+21+x)/4=22

solve for x

x=25

Answer:

Step-by-step explanation:Basic Math. Simplify (6y-3)(6y+3). (6y−3)(6y+3) ( 6 y - 3 ) ( 6 y + 3 ). Expand (6y−3)(6y+3) ( 6 y - 3 ) ( 6 y + 3 ) using the FOIL Method

Answer:

1/80

Step-by-step explanation:

Answer:

3 inches is 1/4th of one foot so to 20 ft is 1/80th

Step-by-step explanation:

Remember, 12 in.=1 FT

Hope this helps

;)

Answer:

13

Step-by-step explanation:

1. Collect like-terms

-23=-a-10

2.Isolate variable

-13=-a

a=13

Answer:

A=13

Step-by-step explanation:

-23=-2a-10+a

add 10 to -23 which is now

-13=-2a+a

now add -2a and a together to get -1a

-13=-1a

divide -1 into both sides to get

13=a

Answer:

x = 0

Step-by-step explanation:

(x - 2)(x + 1) = 3x - 2

2x + x - 2x -2 = 3x - 2

x - 2 = 3x - 2

-2x = 0

x = 0

Answer:

4n + 11

Step-by-step explanation:

-2n + 6n = 4n

11 just stays as is

Answer:

4n + 11

Step-by-step explanation:

Combine like terms.

-2n + 11 + 6n = 4n + 11

Answer:

9 is a zero of h(x). C. Correct

Step-by-step explanation:

We want to find the zeros of the function

[tex]h(x) = (x^2 - 81)(x + 4)[/tex]

The zeros are the values of x that make h(x)=0, thus we need to solve the equation:

[tex](x^2- 81)(x + 4)=0[/tex]

Factoring:

[tex](x^2 - 81)=(x-9)(x+9)[/tex]

[tex](x-9)(x+9)(x + 4)=0[/tex]

This equation has 3 solutions:

x=9, x=-9, x=-4

A. 0 is not a zero of h(x). Incorrect

B. 4 is not a zero of h(x). Incorrect

C. 9 is one of the zeros of h(x) calculated above. Correct

D. 81 is not a zero of h(x). Incorrect

Answer:

C) 9

Step-by-step explanation:

I had this question on a recent test and I got it right

I hope this helps! :)

Answer: D

Step-by-step explanation: The 4 skirts cost are unknown which makes up the 4x and the extra pair of shoes adds on to the cost by 35.67.

Answer:

We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between 39.7% and 46.33%

Step-by-step explanation:

From the question we are told that

  The  sample  proportion is [tex]\r p = 43\%  = 0.43[/tex]

   The  standard error is [tex]SE =  0.017[/tex]

Given that the confidence level is 95%  then the level of significance is mathematically represented as  

      [tex]\alpha =  (100-95)\%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.96[/tex]

Generally the margin of error is mathematically represented as

     [tex]E = Z_{\frac{\alpha }{2} } *  SE[/tex]

=>    [tex]E = 1.96 *  0.017[/tex]

=>     [tex]E = 0.03332 [/tex]

Generally 95% confidence interval is mathematically represented as

      [tex]\r p -E <  p <  \r p +E[/tex]

=>   [tex]0.43 -0.03332 <  p <  0.43 + 0.03332[/tex]

=>    [tex] 0.39668 <  p <  0.46332[/tex]

Converting to percentage

[tex] (0.39668 * 100)<  p <  (0.46332*100)[/tex]        

[tex] 39.7\% <  p < 46.33 \%[/tex]    

Answer:

true

Step-by-step explanation:

when you put them together you get 0

Answer:  Whatever you do to one side, you do the same operation on the other. The goal is to get the variable alone with a number on the other side.

Here's how:

Step-by-step explanation:

19−4c=17

19 - 19 - 4c = 17 - 19  Subtract 19 from both sides  19-19 =0 Cancels on the left

-4c = 17-19   subtract: 17-19 = -2

-4c = -2

-4c/4 = -2/-4    Divide both sides by -4  

Negatives divided by Negatives have a Positive quotient  -4/-4 =1, Cancels

c = 1/2

Answer:

x = 60 degrees

Step-by-step explanation:

In a triangle, all the inside angles should add up to 180 degrees, so to get this question, we have to add the angles we know and then subtract 180 by the number we get:

68 + 52 = 120

180 - 120 = 60

So, x = 60 degrees

Hope this helps :)

Answer:

A. -25x + 7

Step-by-step explanation:

First, to answer this question, we will combine the two sides of the equation:

(-9x + 13) + (-16x - 6)

Now, we take away the parentheses and add like terms:

-9x + 13 + -16x - 6 =

-25x + 7

So, the answer would be A. -25x + 7

Hope this helps :)

Answer:

simplify to -2g+13

Step-by-step explanation:

the following are my reminders in using this module

  By the property of alternate interior angles, Option (1) is the correct statement.    

    From the figure attached,

    Property of the alternate angles states, if two parallel lines are cut by a transversal, then the alternate angles are congruent.

By this property,

 Lines XW and YZ are the parallel lines intersected by a transversal WY.

Here, ∠XWY and ∠ZYW represent the interior angles between the parallel lines and the transversal.

 Therefore, interior alternate angles ∠XWY and ∠ZYW will be congruent.

Hence, Option (1) will be the correct option.

Learn more,

https://brainly.com/question/12101094

Answer:

y = 5x + 1

Step-by-step explanation:

Visually you can see the slope is -1/5, perpendicular just means opposite inverse so -1/5 becomes 5. Line crosses the y-intercept at point (0, 1).

y = mx + b

y = 5x + 1

Answer:

C.

Step-by-step explanation:

Just took the test

Answer:

203

Step-by-step explanation:

When calculating surface area, you add the area of each side.

Base: LxW = 7x7 = 49

Triangle Sides: 1/2 b x h = 1/2(7) x 11 = 38.5

4 sides: 38.5x4 = 154

154+49 = 203

Answer:

Linear

Step-by-step explanation:

y=x-5/4 is a linear equation.

Answer:

10:4

35:14

55:22

Answer:

408.41 feet

Step-by-step explanation:

C = 2πr

C = 2π(65)

C = 408.41 feet

There are twelve months in a year, and he pays $1000 a month, so we get [tex]\$1000*12 = $12,000[/tex] spent in a year. He originally needed to spend $36,000, so he has [tex]\$36,000-\$12,000 = \$24,000[/tex] left.

Please mark as Brainliest if you found this helpful.

Answer:

He payed 12,000 in one year

John has to pay $24000

Step-by-step explanation:

Car cost = $36,000

He gave Monthly = $1000

How much money did he give in a year?

1 year = 12 months

So

$1000 x 12 = 12,000

How does he have balance?

$36,000 - $12,000 = $24,000

John payed $12000 in one year, and has to pay $24000 more to own the car.

Hope you understand

:-)

Answer:

X=0

Step-by-step explanation:

f(X)=0

3^x-1=0

3^x=1

3^x=3^0

X=0

Answer:

3i-1

Step-by-step explanation:

2+3i-3

3i-1

Answer:

-1 + 3i.

Step-by-step explanation:

Hope this helps!

Answer:

y = 2/5x + 24/5

Step-by-step explanation:

y - 4 = 2/5(x - (-2))

y - 4 = 2/5(x +2)

y - 4 = 2/5x + 4/5

y = 2/5x + 4/5 + 4

y = 2/5x + 24/5

Answer:

Domain: (-infinity,infinity)

Step-by-step explanation:

You're welcome. :)

(I couldn't write the symbols) So I wrote infinity. Hopefully I helped!

Answer:

Here's how to solve

Step-by-step explanation:

67-43.

7-3=4

6-4=2

so 24 and to check if it is correct substitute 24 in the equation

24+43= 67

24 is your answer

Answer:

[tex]67 - 43 \\ \\ = 24 \\ then \\ 24 + 43 \\ = 67 \\ now \\ [/tex]

Answer:

$513.75

Step-by-step explanation:

An auto mechanic earns $498.75 in 35 hours during the week. His pay is $2.50 more per hour on weekends.

$498.75 + $2.50 × x

If he works 6 hours on the weekend in addition to the 35 hours during the week:

$498.75 + $2.50 × 6

= $498.75 + $15

= $513.75

Answer:

the answers are -2 and -5.8, 0.75, 4/5, 5/4, 1.4

Step-by-step explanation:

He spent 1 49/60 total hours on his homework altogether