3 years ago

What are the solutions for 2x^2-8x-90

Mathematics

1 answer:

kotykmax [81]3 years ago

4 0

Answer: x = 9

x = -5

Step-by-step explanation:

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Find the surface area of the cylinder in terms of pi 14cm 18cm

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4 years ago

PLZ CHECK MY ANSWER. Round your answer to the nearest tenth.

Umnica [9.8K]

Answer:

D. $70.34 cm^2$

Step-by-step explanation:

Area of sector of a circle is given as θ/360*πr²

Where,

r = radius = 12 cm

θ = 56°

Use 3.14 as π

Plug in the values into the formula and solve

$area = \frac{56}{360}*3.14*12^2$

$area = 70.34$

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The answer is D

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4 years ago

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liubo4ka [24]

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3 years ago

:Phil’s age decreased by 9 years is 14 years ?

Crank

Answer:

Phil is 23

Step-by-step explanation:

Add 14 to 9 and you get 23. So then you subtract 9 from 23

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3 years ago

One number is 13 more than another number. If the sum of the two numbers is 15, find the two numbers

Snowcat [4.5K]

X - the first numberx + 13 - the second number
The equation:
x + x + 13 = 152x + 13 = 15 |-132x = 2 |:2x = 1
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Answer: 1 and 14

6 0

4 years ago