MATHEMATICS HIGH SCHOOL

Please help with # 18

Answers

Answer 1

Answer:

Answer:

0.75

Step-by-step explanation:

1.50-0.75=0.75

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The dot plot below shows the hourly rate of some babysitters:Based on the data shown, how many babysitters surveyed earned $5 or less per hour?

Answers

Answer:

5 babysitters.

Step-by-step explanation:

In the given dot plot we have to tell the numbers of babysitters who have earned $5 or less per hour.

On a line number of babysitters who earned $5 per hour = 2

Number of baby sitters who earned $4 per hour = 3

Total number of babysitters earned $4 and $5 per hour = 2 + 3 = 5

Therefore 5 babysitters is the answer.

Five of the baby sitters said they earned $5 or less per hour.

Multiplying polynomials
find the product
(5n+6)(5n-5)

Answers

$(5n+6)(5n-5) =5n\cdot 5n -5n\cdot 5+6\cdot 5n-6\cdot 5=\n \n=25n^2-25n+30n-30 =25n^2+5n-30$

The solution of expression after multiplying is,

⇒ 25n² + 5n - 30

We have to given that,

To multiplying polynomials is,

⇒ (5n + 6) (5n - 5)

Now, We can multiply as,

⇒ (5n + 6) (5n - 5)

⇒ 5n × 5n + 5n × - 5 + 6 × 5n + 6 × - 5

⇒ 25n² - 25n + 30n - 30

⇒ 25n² + 5n - 30

Therefore, The solution is,

⇒ 25n² + 5n - 30

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Solve for x
w=-2x+p/2

Answers

Answer:

x= -w/2 + p/4

Step-by-step explanation:

hope this helps!

Talia wants to write the equation of the graphed line in point-slope form. These are the steps she plans to use: Step 1: Choose a point on the line, such as (2, 5).
Step 2: Choose another point on the line, such as (1, 3).
Step 3: Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is.
Step 4: Substitute those values into the point-slope form. y – y1 = m(x – x1) y – 3 = (x – 1) Which of Talia’s steps is incorrect? Step 1 is incorrect because it uses a point that is not on the line. Step 2 is incorrect because it uses a point that is not on the line. Step 3 is incorrect because it shows an incorrect ratio of the slope.
Step 4 is incorrect because it shows an incorrect substitution of (1, 3) into the point-slope form

Answers

From the steps Talia chooses to find the equation of the line, we shall evaluate the incorrect step as follows:
Step 1:
Choose a point in the line such as (2,5)
Step 2:
Choose another point on the line, such as (1, 3)
step 3:
Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is.
(5-3)/(2-1)=2/2=1
step 4:
Substitute those values into the point-slope form
y-y1=m(x-x1)
y-3=2(x-1)
y=2x+1
Thus the answer is:
Step 4 is incorrect because it shows an incorrect substitution of (1, 3) into the point-slope form

just took the test the right answer is step 3 is incorrect

Algebra question What is the solution to the following system?

(3, 1, 0)
(0, 1, 0)
(2, 1, 0)
(–2, 1, 0)

Answers

The solution to the following system is $(2,1,0)$ .

What is Algebra?

Algebra is defined as the study of mathematical symbols and in which letters and symbols are used to represent numbers.

We have,

$3x+3y+6z=9$ $(i)$

$x+3y+2z=5$ $(ii)$

$3x+12y+12z=18$ $(iii)$

To find the solution to the above give algebraic equations,

We have to find values of $x,y,z$ .

So,

We will be putting $z=0$ in equation $(i)$ ,

$3x+3y+6(0)=9$

$3x+3y=9$ $(iv)$

Now,

We will be putting $z=0$ in equation $(ii)$ ,

$x+3y+2(0)=5$

$x+3y=5$

$x=5-3y$ $(v)$

Using equation $(iv)$ & $(v)$ ,

We get,

$3(5-3y) +3y=9$

$15-9y+3y=9$

$-6y=-6$

$y=1$ ,

Now we have value of $y=1$ , putting this value in equation $(v)$ ,

$x=5-3(1)$

$x=2$ ,

Hence, we can say that option $(2,1,0)$ is the correct answer.

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Answer:

C.(2,1,0)

Step-by-step explanation:

on edg

WALine segment WX is the radius of circle X, and line
segment ZY is the radius of circle Y. Points W, X, C, Y, and
Z are all on line segment WZ.
What is the area of circle C, which passes though points W
and Z?
X
O 81 T units?
10
O 164 TT units?
O 324 units?
O 1296 units
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