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neonofarm [45]
4 years ago
9

PLEASE HELP!! Solve for y a) 8 b) 12 c) 3V7 d) 4V7

Mathematics
1 answer:
Arlecino [84]4 years ago
3 0

Answer:

C. y = 3\sqrt{7}

Step-by-step explanation:

Based on the right triangle altitude theorem, the altitude, y, in the diagram above, equals the geometric mean of 9 and 7.

This implies => y = \sqrt{9*7}

Thus, solve for y.

y = \sqrt{9} * \sqrt{7}

y = 3\sqrt{7}

The answer is C. y = 3\sqrt{7}

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The largest jaw breaker in a store is spherical with a radius of 2 in, and sells for $4.00. A
maw [93]

Answer:

$36

Step-by-step explanation:

1. Determine the surface area of the  largest jaw breaker

Surface area of a sphere = 4πr²

4 x 3.14 x 2² = 50.24in²

2. Determine the surface area of the new jaw breaker

4 x 3.14 x 6² = 452.16 in²

3. Determine the cost per area

4/ 50.24

4. Determine the price for the new jaw breaker

4/ 50.24 x 452.16 = $36

5 0
3 years ago
How many square feet of outdoor carpet will we need for this hole?
SVETLANKA909090 [29]

For this you would want to break this fgure up with familar shapes. You can do two triangles and one big rectangle.

First triangle:

(3)(2)(1/2)= 3 feet squared

Second Triangle:

(3)(4)(1/2)= 6 feet squared

Rectangle:

(11)(3)= 33 feet squared

Now you add:

33+3+6= 42 feet squared

So, for this hole you will need 42 feet squared of outdoor carpet

8 0
3 years ago
Read 2 more answers
Write the following equation. The sum of four times a number, and 3, is equal to three times the number.
svetlana [45]

Answer: 4x+3=3x

Step-by-step explanation:

5 0
3 years ago
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Find the equation of the line perpendicular to y = - 4x + 8 that passes through the point (8,4).y =
Kryger [21]

Answer:

y= (1/4)x+2

Explanation:

Comparing y =-4x + 8 to the slope-intercept form y=mx+b

• Slope = -4.

Let the slope of the new line = m

Two lines are perpendicular if the product of their slopes is -1.

Therefore:

\begin{gathered} -4m=-1 \\ m=\frac{-1}{-4} \\ m=\frac{1}{4} \end{gathered}

The slope of the perpendicular line = 1/4

Since the line passes through the point (8,4), we have:

\begin{gathered} y-y_1=m(x-x_1) \\ y-4=\frac{1}{4}(x-8) \\ y=\frac{1}{4}(x-8)+4 \\ y=\frac{1}{4}x-2+4 \\ y=\frac{1}{4}x+2 \end{gathered}

The equation of the perpendicular line is y= (1/4)x+2

3 0
2 years ago
a car travels along the highway to yuma at steady speed. when it begins, it is 400 miles from yuma. After 7 hours, it is 59 mile
klemol [59]

Answer:

y= -50x + 400

Step-by-step explanation:

-50 miles from the place which means they are going further and further away so it is negative. And its 400 because y=mx+b the b is 400 because thats where they started.  Also it said it was correct on A-p-e-x.

4 0
3 years ago
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