Can somebody help me?

Answer:

Step-by-step explanation:

x-coordinate of vertex is 4

Answer:

1) 7:10

2) $8 per hour

Step-by-step explanation:

Question 1

What we know:

- there are 10 seventh grade students

- there are 7 sixth grade students

Therefore, the ratio of sixth-grade students to seventh-grade students is 7:10.

Question 2

What we know:

- Janice babysat 3 hours each night

- Janice babysat for 8 nights

- she earned $192

First, we need to find the total number of hours that she babysat. Because she babysat for 3 hours each night for 8 nights, we can find this by multiplying 3 and 8:

3×8=24

Therefore, Janice babysat for 24 hours in total.

Because she earned a total of $192, divide 192 by 24 to find her hourly rate:

192÷24=8

Therefore, Janice has an hourly rate of $8 per hour.

I hope this helps!

Answer:

[tex]Fence = 41.408ft[/tex]

Step-by-step explanation:

Given

[tex]d = 24ft[/tex]

Required

Determine the length of the wall

First, we calculate the circumference (C) of the semi-circle

[tex]C =\pi d[/tex]

[tex]C = 3.142 * 24[/tex]

[tex]C = 75.408[/tex]

The length of the fence is calculated by subtracting the diameter from the circumference:

[tex]Fence = C - d[/tex]

[tex]Fence = 75.408ft - 24ft[/tex]

[tex]Fence = 41.408ft[/tex]

Answer:

B. Sigma Subscript p hat Baseline = 0.032 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, p = 0.12.

Step-by-step explanation:

took the quiz

The correct calculation and interpretation of the standard deviation of the sampling distribution of p hat is the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, 0.12.

Random sample is the way to choose a number or sample in such a manner that each of the sample of the group has an equal probability to be chosen.

The standard deviation of the sampling distribution of p hat is given as,

[tex]\sigma_{ \hat p}=\sqrt\dfrac{p(1-p)}{n}[/tex]

Here, p is the proportion and n is the number of sample.

The proportion of twins born in a town is p = 0.12. Now there is randomly select 100 women from this town who give birth in the next year.

[tex]\sigma_{ \hat p}=\sqrt{\dfrac{0.12(1-0.12)}{100}}\\\sigma_{ \hat p}=\sqrt{0.001056}\\\sigma_{ \hat p}=0.032[/tex]

Thus, the correct calculation and interpretation of the standard deviation of the sampling distribution of p hat is the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, 0.12.

Learn more about the random sample here;

https://brainly.com/question/17831271

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Answer:

a) p = 6x - 5

b) x = 6

Step-by-step explanation:

a) p = a + b + c

p = 3x - 5 + 2x - 1 + x + 1

p = 6x - 5

b) p = 6x - 5 =31

6x - 5 = 31

6x = 36

x = 6

Answer:

V = J = 92

Step-by-step explanation:

The angles are the same on both shapes.

Answer:

3600m^2

Step-by-step explanation:

Area = length x width

Area = 80m x 45m

Area = 3600m^2

Answer:

3600m^2

Step-by-step explanation:

Area= length x width

A=80m x 45m

Area = 3600m^2

hope this helps ^^ (i wasn't sure what you meant by breadth tho)

Answer:

8

Step-by-step explanation:

How many more unit tiles must be added to the function

f(x)=x²-6x+1 in order to complete the square?

The easier, but usually not viable way: If we look at how many more tiles need to be added, we can see that each smaller sides is 1 unit. Thus, we need 8 more tiles to complete the square.

However, this is just an educated guess. If we didn't have a diagram or it was drawn badly, we would be wrong. Let's solve it algebraically.

Note:

completing the square is changing a quadratic equation (the format is

ax² + bx + c = 0)into a(x - d)² + e = 0. (an example of this is (a + b)² or (a - b)²)

This may be confusing, but look at an example:

x² + 4x + 4 = (x + 2)²

Also note that, (a - b)² = a² - 2ab + b²

If we substitute a = x, then we get:

x² - 2bx + b².

Now, all we need to do is find b.

If we know that 2bx = 6x, then we can divide both sides by 2x and get an answer of

2bx = 6x

b = 3.

Thus, b is 3.

Remember, to complete the square, we need to find b², which is

3² = 9.

Then, because they already give us a "1", we just need to add 9-1 = 8 more units.

Just in case, let's check the answer.

If we add 8 to the problem, we get:

x² - 6x + 1 + 8 =

x² - 6x + 9

As you can see, this follows the a² - 2ab + b² format, so we can factor it.

x² - 6x + 9 = (x - 3)²

This is a completed square. Thus, we need to add 8 more unit tiles.

We need to add 9 to the expression to complete the square.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example: so

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

To complete the square for the given function f(x) = x² - 6x + 1, we need to add a constant term that will make the expression a perfect square trinomial.

We can find this constant term by taking half of the coefficient of x and squaring it.

Half of -6 is -3, and (-3)² = 9.

So we need to add 9 to the expression:

f(x) = x² - 6x + 1 + 9

= (x - 3)² + 1

This expression is now a perfect square trinomial.

Thus,

We need to add 9 to the expression to complete the square.

Learn more about expressions here:

https://brainly.com/question/3118662

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Answer:

Step-by-step explanation:

100(133-380)/380=-65%

So the discount was 65%

Answer:

2

Step-by-step explanation:

Answer: 16

Step-by-step explanation: I did the equation, hope this helps :)

Answer: 22 minutes

Step-by-step explanation: 500-170 means that he drained 330 gallons of water so 330 divided by 15 gallons a minute so you get 22 so it takes 22 minutes to have 170 gallons left in the pool

Answer:

(-3 , 3)

Step-by-step explanation:

Intersection of two lines is the solution

Answer:

[tex] \frac{4}{6} \div \frac{1}{9} = 6 [/tex]

it's division

Answer:

just answering

Step-by-step explanation:

bc i want point

Answer:

4

Step-by-step explanation:

because

8÷2=4

16÷4=4

24÷6=4

32÷8=4

Answer:

Step-by-step explanation:

1). Since, both the angles are vertically opposite angles,

  Measure of both the angles will be same.

  6x = 30

   x = 5

2). Since, both the angles are the linear pair of angles,

   (4 + 5x)° + (x + 2)° = 180°

    6x + 6 = 180

    6x = 180 - 6

    x = [tex]\frac{174}{6}[/tex]

    x = 29

    Therefore, (4 + 5x)° = 4 + 5(29)

                                     = 149°

    And (x + 2)° = (29 + 2)

                        = 31°

3). Since, both the angles are linear pair of angles,

    5x° + (3x + 12)° = 180°

    8x + 12 = 180

    8x = 180 - 12

    x = [tex]\frac{168}{8}[/tex]

    x = 21

    Therefore, 5x° = 5(21)

                             = 105°

    (3x + 12)° = 3(21) + 12

                    = 75°

[tex]\huge\text{Hey there!}[/tex]!

[tex]\large\text{8x = 32}[/tex]

[tex]\large\text{DIVIDE 8 to BOTH SIDES}[/tex]

[tex]\mathsf{\dfrac{8x}{8} = \dfrac{32}{8}}[/tex]

[tex]\large\text{Cancel out: } \mathsf{\dfrac{8}{8}}\large\text{ because that gives you } \mathsf{1}[/tex]

[tex]\large\text{Keep: }\mathsf{\dfrac{32}{8}}\large\text{ because it helps us solve for }\mathsf{x}[/tex]

[tex]\mathsf{\dfrac{32}{2}\ = x \ or\ x = \dfrac{32}{8}}[/tex]

[tex]\mathsf{\dfrac{32}{8} = 32\div 8 \rightarrow \bf 4}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: \bf x = 4}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

Step-by-step explanation:

1/3+2/3=3/3=1

So he ate the whole sandwich.

Answer:

He ate the entire sandwich.

Step-by-step explanation:

1/3 + 2/3 = 1

Mark me as brainliest pls.

Answer:

4x² + 28x + 49

Step-by-step explanation:

(x + x + 7)²

(2x+7)(2x+7)

4x² + 28x + 49

Answer:

I D K buy hope you find the right answer

Step-by-step explanation:

Answer:

113.04in²it is the total and correct answer

Answer:

g<12

Step-by-step explanation:

4g+12<60

Subtract 12 from both sides.

4g<60−12

Subtract 12 from 60 to get 48.

4g<48

Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.

g<48/4

Divide 48 by 4 to get 12.

g<12

Answer:

40%

Step-by-step explanation:

Ok so my brain is sorta not working but it said "hey! 20 divided by 2 is 10!"

So I was like ight and divided 80 by 2 to to get 40%.

Hope this helps.

Answer:

She has 24 dog toys

Step-by-step explanation:

8x3=24

Answer:

b is the answer of this question

its 2...

20 leterssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Answer:

(9 × 3x+7) - (5 × x+2)

Step-by-step explanation:

Red area

9 × 3x + 7

white area

5 × x+2

Answer:

DE=5

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Multiply the two parts of one line together to equal the multiplication of the other line.

6*5 = 10 *x

30 = 10x

Divide both sides by 10:

x = 3

Answer:

One triangle can be made, because the sides will remain the same because of the lengths won't change

Step-by-step explanation: