2 years ago

(3x3 – x2 – 2x - 10) = (x - 2) 2 si

Mathematics

1 answer:

GREYUIT [131]2 years ago

6 0

2 is the correct answer

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a company has decreased the weight of its boxes of macaroni by 8 %. if the new weight of the box is 15.1 ounces, what was the o

quester [9]

8%=0.08 and 100%=1 (100% represents the original weight in percentaje)
If x is the weight you can express: 1x-0.08x=15.1
solve for x: 0.92x=15.1
x= 15.1/0.92=16.1
The original weight was 16.41 ounces

8 0

3 years ago

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A base ball diamond is square.The distance from home plate to first base is 90 feet.what is the distance from home plate to seco

Elena-2011 [213]

Because it is square, the distance from home to first base is the same as first base to second base.

Home to First is one side of a right triangle, first to second is the second side of the right triangle and then home to second base would be the hypotenuse of a right triangle.

Using the Pythagorean Theorem we can solve for the hypotenuse:

Let C = the hypotenuse:

90^2 + 90^2 = c^2

8100 + 8100 = c^2

16200 = c^2

c = √16200

c = 127.279 feet, round to 127 feet.

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3 years ago

Using 3.14 for 7, a sphere has a volume of 904.32 mm.

Alla [95]

Answer:

$v = \frac{4}{3} \pi {r}^{3 } \\ 904.32 = \frac{4}{3} \times 3.14 \times {r}^{3} \\ {r}^{3} = \frac{3 \times 904.32}{4 \times 3.14} = 21.57 \\ r = 2.78$