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3 years ago

Help please asap :))

Mathematics

1 answer:

abruzzese [7]3 years ago

5 0

Answer:

6.28

Step-by-step explanation:

You need to find the circumference,

so 2*3.14*R

the radius is 4 so

2*3.14*4

25.12

now you have found the length of the full circle, you need to find a quater like because there is 4 90 degres in a circle

so divide you answer by 4

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Simplify the imaginary number sqr -75

m_a_m_a [10]

Answer:

5i $\sqrt{3}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

and $\sqrt{-1}$ = i

Given

$\sqrt{-75}$

= $\sqrt{25(3)(-1)}$

= $\sqrt{25}$ × $\sqrt{3}$ × $\sqrt{-1}$

= 5 × $\sqrt{3}$ × i

= 5i $\sqrt{3}$

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3 years ago

For the following equation, compute the x- and y- intercepts to graph the line.

nikklg [1K]

X-intercept: (-5,0)
Y-intercept: (0,4)
To solve for the X-Intercept, substitute 0 for y and solve for x.
To solve for the Y-Intercept, substitute 0 for x and solve for y.

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3 years ago

A quadratic function has zeros -7 and 9. What are the linear factors of the function?

garik1379 [7]

Answer:

(x+7)(x-9) = 0

Step-by-step explanation:

x + 7 = 0

x = -7

x - 9 = 0

x = 9

4 0

3 years ago

Which one on these natural resources is nonrenewable?

wlad13 [49]

Answer:

B.) I think it is B because sunlight is renewable, so is corn and sugarcane. Which leaves the odd one out.

6 0

3 years ago

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Pls helpp me on this

Crank

Answer:8

Step-by-step explanation:

When you round it depends on what number it is.

So for 7.8 it is closer to eight not seven

8 0

2 years ago

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