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3 years ago

6

Test review ? Can you help me with solving 1-3 please

1 answer:

Aleks [24]3 years ago

5 0

1-3= -2 cause you basically subtract it how you normally would but then add a negative symbol infront of it

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In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (2

Airida [17]

A Least Square Regression Line is the best thing to use for this because there is inconsistencies and no direct equation to be able to fill all of these points. They may be outliers and therefore we should use a calculator for a Regression Line to be calculated to find the residual.

5 0

4 years ago

What is the exact area and arc length of these sectors? Please helppp

Karolina [17]

<u>Answers with step-by-step explanation:</u>

1. Area of sector 1 = $\frac{90}{360} \times \pi \times 12^2 = 36\pi$

2. Area of sector 2 = $\frac{45}{360} \times \pi \times 19^2 = \frac{2527}{8} \pi$

3. Area of sector 3 = $\frac{270}{360} \times \pi \times 15^2 = \frac{675}{4} \pi$

4. Area of sector 4 = $\frac{270}{360} \times \pi \times 6^2 = 27 \pi$

5. Arc length of sector 1 = $\frac{90}{360} \times 2 \times \pi \times 12 = 6\pi$

6. Arc length of sector 2 = $\frac{315}{360} \times 2 \times \pi \times 19 = \frac{133}{4} \pi$

7. Arc length of sector 3 = $\frac{270}{360} \times 2 \times \pi \times 15 = \frac{45}{2}\pi$

8. Arc length of sector 4 = $\frac{270}{360} \times 2 \times \pi \times 6 = 9\pi$

4 0

3 years ago

Lake Superior,along the U.S Canadian border,has a maximum depth of 1.333 thousand feet. There are 5,280 feet in one mile.How dee

MA_775_DIABLO [31]

5,280-1.333=
So what ever your answer was that is it do all of this +and- and division

7 0

3 years ago

I need help bro please help me lol

antoniya [11.8K]

Answer:

∛64 and ∛216

Step-by-step explanation:

∛64 = 4

∛216 = 6

∛81 = 4.3267...

∛312 = 6.8470...

∛100 = 4.6451...

As you can see only the first two options contain perfect cubes.

Berst of Luck!

4 0

3 years ago

An angle measures 126° more than the measure of its supplementary angle. What is the measure of each angle?

Crazy boy [7]

Solution:

<u>We know that:</u>

A pair of supplementary angles always sum up to 180°

<u>This means that:</u>

$x + x + 126 = 180$

Step-by step calculations:

<u>Combine like terms and simplify:</u>

$x + x + 126 = 180$
=> $(x + x) + 126 = 180$
=> $2x + 126 = 180$

<u>Subtract 126 both sides:</u>

=> $2x + 126 - 126 = 180 - 126$
=> $2x = 54$

<u>Divide 2 both sides:</u>

=> $\frac{2x}{2} = \frac{54}{2}$
=> $x = 27$

This means that one angle is 27°. Let's find the other angle.

<u>Finding the other angle:</u>

$27 + 126 = Other \space\ angle$
=> $153 \space\ = Other \space\ angle$

Thus, the measure of the angles are 27° and 153°.

7 0

3 years ago

Read 2 more answers