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Ivahew [28]
4 years ago
10

I need help with 12, 13, 14, and 15

Mathematics
1 answer:
frutty [35]4 years ago
6 0
Number 12 what do you think we do first
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The first side of a triangle is cm long. The second side is twice as long as the first.
KonstantinChe [14]

Answer:

First side is 19, second side is 38 and third side, the longest is 43.

Step-by-step explanation:

Let's call the first side a.  

The second side, being twice as long as the first, is 2a.

The third side is 2a+5.

The equation is:

a+2a+2a+5=100, since 1 metre is 100 centimetre.

5a+5=100

5a=95

a=19

First side is 19, second side is 38 and third side, the longest is 43.

7 0
3 years ago
Resiprocal of (-3/7)^2!​
USPshnik [31]

Answer:

\frac{49}{9}

Step-by-step explanation:

Given

(\frac{-3}{7})^{2!}

Required

Determine the reciprocal

If a number is x, the reciprocal is: 1/x

So, the reciprocal of (\frac{-3}{7})^{2!} is:

\frac{1}{(\frac{-3}{7})^{2!}}

2! = 2*1 =2

So, we have:

\frac{1}{(\frac{-3}{7})^{2}}

\frac{1}{(\frac{-3^{2}}{7^{2}})}

Evaluate all exponents

\frac{1}{(\frac{9}{49})}

Take inverse of 9/49

\frac{49}{9}

Hence, the reciprocal of (\frac{-3}{7})^{2!} is \frac{49}{9}

5 0
3 years ago
Which line has a y-intercept of (0,-5) and an x-intercept of (1,0) ?
insens350 [35]
C is (0,-5) and D is (1,0)
6 0
3 years ago
Let f ( x ) = 2 x − 1 , g ( x ) = 3 x , and h ( x ) = x ^2 + 1 , what is g (h( 24 ) ) ?
love history [14]
You must calculate h(24) first.  h(x) = x^2 + 1, so h(24) = 577.

g(x) = 3x, so g(577) = 3(577) =  1731 (answer).  We don't need f(x).
4 0
4 years ago
- 6<br>48<br>-<br>99<br>how to solve it​
dimulka [17.4K]
Huh? Can you put a picture?
5 0
3 years ago
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