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r-ruslan [8.4K]
3 years ago
7

5. Lulu rode her bike to visit a friend. She traveled at 10 mi/h. While she was there, it began to rain

Mathematics
1 answer:
Lilit [14]3 years ago
5 0

Answer:25m/h

Step-by-step explanation:t = %28-37.5%29%2F%28-15%29

t = +2.5 hrs to bike to friends house10*2.5 = 25 mi

25(2.5-1.5) = 25 mi

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Prove the theorem (AB )^T= B^T. A^T
Lisa [10]

Answer:

(AB)^T = B^T.A^T  (Proved)

Step-by-step explanation:

Given  (AB )^T= B^T. A^T;

To prove this expression, we need to apply multiplication law, power law and division law of indices respectively, as shown below.

(AB)^T = B^T.A^T\\\\Start, from \ Right \ hand \ side\\\\B^T.A^T = \frac{B^T.A^T}{A^T}.\frac{B^T.A^T}{B^T} (multiply \ through) \\\\                = \frac{A^{2T}.B^{2T}}{A^T.B^T} \\\\=\frac{(AB)^{2T}}{(AB)^T} \ \ (factor \ out \ the power)\\\\= (AB)^{2T-T}  \ (apply \ division \ law \ of \ indices; \ \frac{x^a}{x^b} = x^{a-b})\\\\= (AB)^T \ (Proved)

3 0
3 years ago
Does the table represent a function? why or why not y: 2 3 3 4 5 y: 4 5 6 7 7
TEA [102]
No because there are no x values
7 0
3 years ago
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the tens digit of a 2 digit number is twice the units digit. The sum of the digits is 12. Find the original number
Nataly [62]
<span>2x + x = 12 
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7 0
3 years ago
In a​ film, a character is criticized for marrying a woman when he is three times her age. He wittily​ replies, "Ah, but in 25ye
Sonbull [250]

Answer:age of the man: 75 age of the woman:25

Step-by-step explanation:

First, We need to define the variables

x: age of the man

y: age of the woman

at the first time he has three times her age

x=3y                (1)

in 25 years time

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we clear the equation

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we substitute in the (1) equation:

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5 0
3 years ago
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Which of the following functions is quadratic?
zysi [14]
The answer is C. 
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6 0
4 years ago
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