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ivann1987 [24]
3 years ago
11

I need help plsssd it’s algebra

Mathematics
1 answer:
nalin [4]3 years ago
8 0

I would say B

Hope I helped :)

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100 points the right answer please the set designer for a play painted some background scenery on a large piece of plywood. He u
podryga [215]

Answer:

14 ft

Step-by-step explanation:

Focus on the triangle, and temporarily neglect the 2 ft measurement at the top of the triangle.  Then the 2 legs of the triangle have lengths h - 2 ft and 5 ft, and the hypotenuse is 13.

Applying the Pythagorean Theorem, we get:

13^2 =  (h - 2)^2 + 5^2, or

169 = h^2 - 4h + 4 + 25, or

144 = h^2 - 4h + 4, or

140 = h^2 - 4h, or, finally,

h^2 - 4h - 140 = 0.  We must find the value of h.

I graphed this function on a calculator and found that -10 is a zero.  Thus, the function factors into (h + 10)(h - 14) = 0, or h = 14.

The total height of the piece of plywood is 14 ft.

Check this:  does a right triangle with legs (14 - 2) and 5 have a hypotenuse of 13?  Yes.

7 0
3 years ago
Jackson bought 5 ounces of raisins for $4. How much could he have buy for 1$?
Yuliya22 [10]
If you do 5 divide by 4 then you can find what 1$ would be worth so ie.
5 divide by 4 is 1.25 which means that for 1$ you could buy 1.25 ounces
4 0
3 years ago
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A car increases, then decreases, its speed. Which table could represent the speed of the car?
babunello [35]

Answer:

B is answer

Step-by-step explanation:

3 0
3 years ago
Evaluate [(40 + 5) - 3^2] divided by 9 times 2
Irina-Kira [14]
45-9=36/18=2 I hope this helps
3 0
3 years ago
Joey collected 30 eggs. The 30 eggs fills 1/10 of an egg crate. What is the total number of eggs the egg crate can hold?
joja [24]
You times 30 times 10 equals 300 so you answer would be 300 eggs
6 0
3 years ago
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