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katovenus [111]
3 years ago
15

A triangle has an area of 90 and a height of 10. What is the base

Mathematics
1 answer:
Dima020 [189]3 years ago
5 0
The base would be equal to 18

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Please help! Will give brainliest to correct answer
saveliy_v [14]

Answer:

Correct option is (C).

Step-by-step explanation:

Because in figure,

°.°point B is fixed at plane.

.°.Center is B.

& °.° Image is enlargement.

.°. scale factor will be greater than 1

Now,

scale factor = A'B'/AB

= 24/6

= 3

So correct option is (C).

#$# HOPE YOU UNDERSTAND #$#

#$¥ THANK YOU ¥$#

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5 0
3 years ago
Find the volume of the composite figure below
Marina86 [1]

Answer:

1386 in³

Step-by-step explanation:

Volume of the composite cone = volume of a hemisphere + volume of a cone

=>Find the volume of cone

Volume of cone = ⅓πr²h

π = 3.142

r = 7 in

h = =√(15² - 7²) [using Pythagorean theorem to solve for height given the slant height and radius]

h = √(225 - 49)

h = √176 ≈ 13 in

Volume of cone = ⅓*3.142*7²*13

= ⅓*2001.454 ≈ 667 in³

=>Find volume of hemisphere.

Volume of hemisphere = ½*volume of sphere = ½*4/3πr³ = ⅔πr³

π = 3.142

r = 7 in

Volume = ⅔*3.142*7³ ≈ 719 in³

<em>Volume of composite figure = 667+719 = 1386 in³</em>

6 0
3 years ago
The profit P after the first month of operation for a new departmental store is $10,605. The profit of the departmental store af
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The answer is A, you just have to plug it into the equation, but you missed up one the equation it's suppose to be P=10500(1.01)^x. To a power and multiplying are very different things
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4 years ago
(4a^3-6a^2)-(a^3-3a^2)
frozen [14]
<span>4a^3 - 6a^2 -a^3 + 3a^2
= 3a^3 - 3a^2

-----------</span>
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4 years ago
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3 years ago
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