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3 years ago

PLEASE HELP I WILL GIVE A BRAINLIEST ANSWER FOR SOMEONE WHO ANSWERS CORRECTLY

Mathematics

2 answers:

ddd [48]3 years ago

7 0

The correct answer is D.

The area is base x height which in this case is 14 x 8 = 112 which is answer choice D.

Hope this helps.

Harlamova29_29 [7]3 years ago

3 0

I would break the shape into shapes I know how to use. This is a rectangle and two triangles. The are of the triangles is 1/2*base*height or 1/2*√17*8 (I got √17 by using the pythagorean theorem to find the other length of the triangle) and that means the area of one triangle is 16.49. Since there are two, the combined area of the triangles is 32.98. The area of the rectangle is base*height or (14 - √17 is 9.88 as the base) 9.88 * 8 or 79.04. Then add up the areas. 32.98 + 79.04 = 112.02 which can be rounded to D) 112 sq in

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8/f = 56/105 what is f?

svetlana [45]

8/15 = 56/105

This may be solved using proportion.
a/b = c/d
ad = bc where cross products are equal.

a = 8
b = f
c = 56
d = 105

ad = bc
8*105 = f*56
840 = 56f
840/56 = 56f/56
f = 15

56 ÷ 7 = 8
105 ÷ 7 = 15

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3 years ago

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wariber [46]

Answer: -2/5

Step-by-step explanation:

To find the slope, we set the function use y = mx + b forms.

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y = -2/5x + 2

In the y = mx + b, the m before variable x is always the slope, so -2/5 is the slope for 2x + 5y = 10.

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lakkis [162]

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The water reaches a max height when the horizontal distance from the firefighter to the building is approximately __m. Round to

elena-s [515]

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Explanation:

Given:

h(x) = -0.026x² + 0.563x + 3

where,

h(x) is the height of the water

Initial speed, u = 14m/s

angle, θ = 30°

(a)

Horizontal distance = ?

h(x) = ax² + bx + c

the vertex is found at x = -b/2a

where,

x = distance to the maximum height

As compared to the equation given:

a = -0.026

b = 0.563

Thus,

$x = \frac{-0.563}{2 X -0.026} \\\\x = \frac{0.563}{0.052}\\ \\x = 10.83m$

Therefore, horizontal distance from the firefighter at which the maximum height of water occurs is 10.83m

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