MATHEMATICS
HIGH SCHOOL

The equation for the line of best fit is a good approximation for the data because the points are random, having no pattern.

The residual plot has a linear pattern.

The points of the residual plot are spread evenly above and below the x-axis.

The residual plot has the pattern of a curve.

The equation for the line of best fit is not a good approximation for the data because the points have a linear pattern

Only right answers, please. This is important for my grade.

Answer: Its answers 1 and 5 i just took the test

Answer:

Answer:

answer is 1 & 3 on edg

Step-by-step explanation:

MIDDLE SCHOOL

The functions r and s are defined as follows. R(x)=x-1. And. S(x)=-x squared. Find the value of r(s(-2)) Please help

Answer:

-5

Step-by-step explanation:

"r(s(-2))" is a composition of functions. To evaluate this, we need to plug in "-2" into the function S(x) and then take that value and further plug it into R(x).

First, s(-2):

Now, we take the value (-4) and put it into R(x) to get our final answer:

Hence, r(s(-2)) = -5

HIGH SCHOOL

The surface of the ground at Drake's well is 1,200 ft above sea level. To reach oil, Drake first drilled through gravel to a point 1,168 ft above sea level. He then drilled an additional 38 ft through shale. What was the total depth of the well?

Answer:

1176

Step-by-step explanation:

All you have to do is add 1168 plus 38 would be 1176.

HIGH SCHOOL

1. Write the equation y = -1/2x+3 in standard form. 2. Write the equation 9x + 2y = 6 in slope-intercept form.

3. Write the equation y - 3 = 4(x+1) in standard form.

4. Write the equation y + 7 = -2(x-3) in slope-intercept form.

5. The equation y - 5 = 3(x-2) is written in point-slope form. Write the equation in the following ways:

A. Slope-intercept form.

B. Standard form.

1. x + 2y -3 =0.

2. x/2 + y/9 = 1/3.

3. 4x-y+7=0.

4. x + y/2 = -1/2.

5. a. 3x-y-1=0.

b. x - y/3 = 1/3.

2. x/2 + y/9 = 1/3.

3. 4x-y+7=0.

4. x + y/2 = -1/2.

5. a. 3x-y-1=0.

b. x - y/3 = 1/3.

Answer:

1. x + 2y -3 =0.

2. x/2 + y/9 = 1/3.

3. 4x-y+7=0.

4. x + y/2 = -1/2.

5. a. 3x-y-1=0.

b. x - y/3 = 1/3.

Step-by-step explanation:

MIDDLE SCHOOL

100 points!A flower bed is in the shape of a triangle, with a base of 13 feet and a height of 5 feet. What is the area of the flower bed? 18 square feet

32.5 square feet

65 square feet

130.5 square feet

Answer:

32.5 square feet

Step-by-step explanation:

Area of a triangle = 1/2 b x h

Where b = base

h = height

Given base = 13 feet

height = 5 feet

Area = 1/2 x 13 x 5

= 65/2

= 32.5 square feet

Answer: its not 100 hundred points

Step-by-step explanation:

MIDDLE SCHOOL

Write 23 in significant notation

*I think you meant scientific notation.*

23 in scientific notation would be 2.3 x 10^1.

Answer:

2.3 × 10^1 I think you meant scientific notation

MIDDLE SCHOOL

8X+6+10X-30+5X+20=180

X=8....hope i helped

HIGH SCHOOL

What number does x stand for in this equation?

-7x + 6=27

⓵ You need to solve the left side first in order to isolate the × and find it’s value :

-7× + 6 = 27

-6 -6

↓

-7× = 21

÷-7 ÷-7

↓

× = -3

If you find it too difficult to divide a number by a negative, just divide 21 by 7 and always remember that when dividing, when the signs are different the answer is negative. So knowing that you could just divide 21 by 7, which is 3, and add a negative sign in front!

I hope this helped, if there’s anything let me know! ☻

-7× + 6 = 27

-6 -6

↓

-7× = 21

÷-7 ÷-7

↓

× = -3

If you find it too difficult to divide a number by a negative, just divide 21 by 7 and always remember that when dividing, when the signs are different the answer is negative. So knowing that you could just divide 21 by 7, which is 3, and add a negative sign in front!

I hope this helped, if there’s anything let me know! ☻

HIGH SCHOOL

A small island is 5 miles from the nearest point p on the straight shoreline of a large lake. if a woman on the island can row a boat 2 miles per hour and can walk 3 miles per hour, where should the boat be landed in order to arrive at a town 7 miles down the shore from p in the least time

The boat should be landed 4 miles from the point p.

What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Total miles to be travel = 7 miles

and, woman on the island can row a boat 2 miles per hour and can walk 3 miles per hour.

Then for 7 miles, the boat should be landed

=7 -3

= 4 miles of being on a boat.

hence, the boat should be landed 4 miles from the point p.

Learn more about unitary method here:

brainly.com/question/22056199

#SPJ2

Time =5mile/hour/5mile=1 hour

then for 7 miles, the boat should be landed in the 4miles away from point p because of 7 -3 = 4 miles of being on a boat.

then for 7 miles, the boat should be landed in the 4miles away from point p because of 7 -3 = 4 miles of being on a boat.

MIDDLE SCHOOL

What’s 1500 times 150000

Use long multiplication to evaluate.

225000000

Answer: 225000000

Step-by-step explanation:

1500 X 150000 = 225000000