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2 years ago

HELP ME PLEASE. THIS IS MY LAST QUESTION THEN I CAN GO TO BED.

Mathematics

2 answers:

Ghella [55]2 years ago

7 0

Answer:

100.

Step-by-step explanation:

The 2 smaller triangles are similar, so:

48 / (x - 64) = 64 / 48

64(x - 64) = 48^2

x - 64 = 48^2/64

x = 48^2/64 + 64

= 100.

Neko [114]2 years ago

4 0

The answer is 100. Now you can go to bed! Lol

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What is the value of x (X+40) (3x) A. 20 B. 35 C. 60 D. 70

shtirl [24]

Answer: A. 20 is the answer.

Step-by-step explanation:

x+40 = 3x

or, 40 = 3x-x

or, 2x = 40

or, x = 40/2

so, x = 20

4 0

3 years ago

Giving brainliest :)

Verizon [17]

Answer:

$f^{-1}(x)=x^2+1$

Step-by-step explanation:

The inverse of a function is when the x and y are swapped. So the first step is to write f(x) as y and then swap the x and y

Original Equation:

$f(x)=\sqrt{x-1}\\$

write f(x) as y (since that's what it represents)

$y=\sqrt{x-1}$

Swap x and y

$x=\sqrt{y-1}$

Square both sides

$x^2=y-1$

Add 1 to both sides

$x^2+1=y$

So this gives you the equation:

$f^{-1}(x)=x^2+1$

8 0

2 years ago

Hii pls help i’ll give you brainliest if you give a correct answer.

GenaCL600 [577]

Answer:

Step-by-step explanation:

How many 3/8 are in 5/4? We can set this number as x. Therre are x number of 3/8 that make up 5/4:

Therefore the PART A is: x* 3/8 = 5/4

On the other hand, 5/4 / 3/8 = x (this is just the reverse of what I mentioned earlier)

I hope this helps! :)

6 0

3 years ago

What is the point of intersection?

Tomtit [17]

The correct answer is: The point where the lines meet. Hope this helps!!

8 0

3 years ago

Read 2 more answers

I need to understand the solution

vovangra [49]

Answer:

7/15 is your answer

Step-by-step explanation:

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3 years ago