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3 years ago

35 points.Helpppp with explanation.

Mathematics

1 answer:

Katena32 [7]3 years ago

7 0

Hey there! :D

The midpoint and the outside line are symmetrical to eachother, 2(BF)= AE

Two midpoint segments equals one AE segment.

So, use the representation above and plug in the numbers.

2(23)= 5x -4

56= 5x-4

Add 4 to both sides.

60=5x

Divide by the 5.

x=12

I hope this helps!

~kaikers <3

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José sets up computers. He has been working

lakkis [162]

Correct answer should be= 1.5 hours.

3 0

3 years ago

What are the roots of the equation y=x^2 -5x-24

NikAS [45]

Factor
(x-8)(x+3)

Check:
-8+3=-5
-8*3=-24

Use ZPP
x-8=0
x=8

x+3=0
x=-3

Final answer: x=-3, x=8

6 0

3 years ago

Rob peeled 125 oranges in 5 hours. At that rate, how many oranges<br> would he peel in 12 minutes?

marin [14]

Answer:

$\boxed {\tt 5 \ oranges}$

Step-by-step explanation:

Let's set up a proportion.

$\frac{oranges}{minutes} =\frac{oranges}{minutes}$

He can peel 125 oranges in 5 hours. First, let's find the minutes in 5 hours.

There are 60 minutes in 1 hour, so multiply 60 and 5 (60*5=300). There are 300 minutes in 5 hours.

$\frac{125 \ oranges}{300 \ minutes}=\frac{oranges}{minutes}$

We don't know how many oranges he can peel in 12 minutes. So we say he can peel x oranges in 12 minutes.

$\frac{125 \ oranges}{300 \ minutes}=\frac{x \ oranges}{12 \ minutes}$

$\frac{125 \ }{300 \ }=\frac{x \ }{12 }$

Solve for x by isolating it. x is being divided by 12. The inverse of division is multiplication. Multiply both sides of the proportion by 12.

$12*\frac{125 \ }{300 \ }=\frac{x \ }{12 \ }*12$

$12*\frac{125 \ }{300 \ }=x$

$12*0.416666667=x$

$5=x$

Rob can peel 5 oranges in 12 minutes.

6 0

4 years ago

Read 2 more answers

Simplify 4 : 42 the following in to the form 1 : n 1 : 21

SpyIntel [72]

Answer:

1 : 10.5

Step-by-step explanation:

4 : 42

1 : n

Cross multiply the ratios.

42 × 1 = 4 × n

42 = 4n

42/4 = n

n = 10.5

3 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

35 points.Helpppp with explanation.​

35 points.Helpppp with explanation.