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Colt1911 [192]
3 years ago
15

PLEASE HELP! What is the value of a? A 12 B. 15 C. 17:25 D. 21.25

Mathematics
1 answer:
marishachu [46]3 years ago
7 0

i think b. not sure sorry if im wrong

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If f(x)=-5x-11, then f^-1(x)=
Ludmilka [50]
F^-1(x) is the inverse so...
f^-1(x) = (-1/5)x - 11/5 

7 0
3 years ago
if a tv has a diagonal measurement of 55 and a height of 30, what is the tvs width? round to the nearest whole number
Sati [7]

Answer:

  46

Step-by-step explanation:

The geometry can be modeled by a right triangle. The diagonal measure is the hypotenuse, and the height is one leg. The width is the other leg, and can be found using the Pythagorean theorem.

__

<h3>Pythagorean theorem</h3>

The relation between the leg lengths (a, b) and the hypotenuse (c) is ...

  c² = a² +b²

Solving for b gives ...

  b = √(c² -a²)

<h3>application</h3>

In this problem, we have c=55 and a=30. Then the width of the TV is ...

  b = √(55² -30²) = √(3025 -900) = √2125

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The width of the TV is about 46.

7 0
2 years ago
I need help with this one
antiseptic1488 [7]

Answer:

-12

Step-by-step explanation:

3 0
3 years ago
If line a is perpendicular to line b and the slope of line a is 7 whats the slope of line b
amm1812

Answer:

If a line is perpendicular to another line, that means that the slope is completely opposite that of the original line.  The first thing that we do to the slope is we negate the number which means that if we have a slope of -7 our slope because 7 in this step.  In our case our slope is 7 so in this step it becomes -7.

Moving onto the second part which is to get the reciprocal of the number which means that if we have \frac{1}{2} then we would switch it to 2.  In our case our number is -7 so we would make that into a fraction like this -\frac{1}{7}.

In conclusion, our final slope of the perpendicular line is -\frac{1}{7}.

<u><em>Hope this helps!  Let me know if you have any questions</em></u>

8 0
2 years ago
Read 2 more answers
The sum of four consecutive odd numbers is 40 what is the greatest of the four numbers
TEA [102]

Answer:

13

Step-by-step explanation:

First find the average the numbers (40 / 4 = 10)

2 are more and 2 are less

7, 9, 11, 13

7 0
3 years ago
Read 2 more answers
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