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3 years ago

A story's main theme might be difficult to figure out because: *

Mathematics

2 answers:

Gelneren [198K]3 years ago

8 0

The answer is D.
Hope this helped!

sattari [20]3 years ago

5 0

The answer is D. It is rarely stated explicitly

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lemon looked at 26 Web sites in 39 minutes. at that rate, how many Web sites would she look at in 12 minutes?

nignag [31]

8 websites in 12 minutes

Hope this helped :)

6 0

3 years ago

Read 2 more answers

4) What is the sum of the exterior angles of a 32-sided polygon?

patriot [66]

Answer:

360°

Step-by-step explanation:

The sum of the exterior angles for all polygons is 360°

5 0

2 years ago

What is the equation of the quadratic graph with a focus of (4, −3) and a directrix of y = −6?

Artyom0805 [142]

Answer:

$y=\frac{1}{6} (x-4)-\frac{9}{2}$

Step-by-step explanation:

∵ The quadratic equation form is :

y = [1/2(b - k)] (x - a)² + (b + k)/2

Where (a , b) is the focus and directrix y = k

∵ The focus is (4 , -3) and directix is y = -6

∵ $y=\frac{1}{2(-3-(-6))} (x-4)^{2}+\frac{(-3)+(-6)}{2}$

∴ $y=\frac{1}{6} (x - 4)^{2}+\frac{-9}{2}$

∴ $y=\frac{1}{6} (x-4)-\frac{9}{2}$

another way:

Assume that (x , y) is the general point on the parabola

∵ The distance between the directrix and (x , y) = the distance between the focus and (x , y)

By using the distance rule:

∵ (y - -6)² = (x - 4)² + (y - -3)² ⇒ (y + 6)² = (x - 4)² + (y + 3)

∴ y² + 12y + 36 = (x - 4)² + y² + 6y + 9

∴ 12y - 6y = (x - 4)² + 9 - 36

∴ 6y = (x - 4)² - 27 ⇒ ÷ 6

∴ y = 1/6 (x - 4)² - 9/2

4 0

3 years ago

AAAAAAAAAAA 65 points please help

nata0808 [166]

Answer:

The distance between E and F is 5 units

Step-by-step explanation:

E and F are share the same y-coordinates. So for this part it is okay to not use the distance formula. 

So you will be having:

E (5,8) and F (5,3)

EF = 8-3=5

OR 

YOU CAN USE THE DISTANCE FORMULA AS INDICAYED IN THE PICTURE.

Hopefully the picture is clear and understandable and younger the explanation.

4 0

2 years ago

Round 3,989.23655 to the nearest tenth

dedylja [7]

This would be 3990 if you require a whole number but for a decimal it would be 3989.24

7 0

3 years ago