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3 years ago

10

3). Find the area of a circle with a radius of 3 ft.

2 answers:

riadik2000 [5.3K]3 years ago

6 0

Answer:

Step-by-step explanation:

1.5

Kitty [74]3 years ago

3 0

Answer:

A=πr2=π·32≈28.27433ft²

Step-by-step explanation:

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8h + (-7.9d) - 14 + 5d - 3.4h

Fynjy0 [20]

☁️ Answer ☁️

So I got:

-2.9d + 4.6h - 14

Hope it helps.

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7 0

3 years ago

Directions: Simplify the following expressions. 1. (3x-10)² 6. (-15y + 3)² 7. (q-2r) (q + 2r) 8. (m-6)³ 9. (u−5)(u+ 5) 10. (x +

wlad13 [49]

Answer:

1. 9x^2-60x+100

6. 225y^2-90y+9

7. q^2-4r^2

9. u^2-25

10. x^3+6x^2+12x+8

2. 144a^2z^2-264abz+121b^2

3. 9b^4-4v^2

4. 8v^3+36^2w+54vw^2+27w^3

5. -16t^2y+64y^3+3362t+6724y

Step-by-step explanation:

There you go

5 0

3 years ago

A line is drawn through (-7, 11) and (8, -9). The equation

Oduvanchick [21]

Answer:

$4x+3y=5$

$y=-\frac{4}{3}x+\frac{5}{3}$

Step-by-step explanation:

we have the points

(-7, 11) and (8, -9)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{-9-11}{8+7}$

$m=-\frac{20}{15}$

Simplify

$m=-\frac{4}{3}$

Write the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{4}{3}$

$point\ (-7, 11)$

substitute

$y-11=-\frac{4}{3}(x+7)$

Convert to standard form

we have

$y-11=-\frac{4}{3}(x+7)$

Multiply by 3 both sides

$3y-33=-4x-28\\4x+3y=5$

Convert to slope intercept form

we have

$y-11=-\frac{4}{3}(x+7)$

Isolate the variable y

$y=-\frac{4}{3}x-\frac{28}{3}+11$

$y=-\frac{4}{3}x+\frac{5}{3}$

8 0

3 years ago

What is the vertex of the parabola with the equation y = (x - 2)2 + 10? (1 point)

prohojiy [21]

Answer:

(2, 10)

Step-by-step explanation:

y = (x - h)² + k

vertex = (h, k)

= (2, 10)

5 0

3 years ago

Pls, what is surface area?

Lostsunrise [7]

Answer:24

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers