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Vitek1552 [10]
3 years ago
10

Help I need helpp pleaseeeee pleaseeeeeee

Mathematics
1 answer:
Feliz [49]3 years ago
8 0
It’s 10 people who in favor the stop sign... I think
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Two similar prisms have heights 4 cm and 10cm what is the ratio of their surface areas
Slav-nsk [51]
Let k be the scale factor relating two similar prisms P_{1} and P_{2}, such that for corresponding parts of prisms P_{1} and P_{2} (for heights, in particular) we have k= \frac{height\  of \ P_{1} }{height \ of\  P_{2} }. In our case k= \frac{4}{10} = \frac{2}{5}.
For surfaces area we have \frac{Surface \ area \ of \  P_{1} }{Surface \ area \ of \  P_{2}} = k^{2} =( \frac{2}{5} )^{2}= \frac{4}{25}.
So, the right answer is 4:25 (choice B)



4 0
3 years ago
DUE BEFORE 5:OO!!!!!!
AleksAgata [21]
X + y = 6
x - 6y = -9

Subtract the equations, you get:

y - (-6y) = 6 - (-9)
7y = 15

y = 15/7

x + 15/7 = 6
x + 15/7 = 42/7
x = (42-15)/7
x = 27/15

None of your answer choices are correct, since the solution to the systems of equation is (27/15, 15/7)
6 0
3 years ago
Help!<br> Factor the expressions. <br> x2 + 6x − 40 =
Natalija [7]
The answer to this is (x-10) (x+4)
8 0
3 years ago
Read 2 more answers
Find the measure of each angle indicated.<br> A) 95°<br> C) 26°<br> B) 92°<br> D) 20°
riadik2000 [5.3K]

Answer:

D) 20°

Step-by-step explanation:

Using the triangle sum theorem, you know that every triangle's interior angles add up to 180°. Therefore the bottom triangle's missing angle can be found by giving it the variable x.

57° + 30° + x = 180°

Simplify: 87° + x =180°

x=93°

By the vertical angles theorem, the vertical angle directly across this angle is congruent to this one. Meaning that the top triangle's angle are 67°, 93°, and unknown, which we can assign y. We can use the same method from above here.

67° + 93° + y = 180°

Simplify: 160° + y = 180°

y=20°

6 0
3 years ago
Read 2 more answers
Plzzz help the problem is <br> in the photo
Black_prince [1.1K]

Answer:

Step-by-step explanation:

A. 16.6%

B. 16.6%

1/3 x 1/2 = .166 = 16.6%

6 0
3 years ago
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