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uranmaximum [27]
3 years ago
14

Please help me with this question please help me I beg you

Mathematics
1 answer:
Sindrei [870]3 years ago
7 0

Step-by-step explanation:

Given

f(x) = 5 / 2x - 1

f^-1( x) = ?

Let

y = f(x)

y = 5/2x - 1

Interchanging the roles of x and y we get

x = 5/2y - 1

2y - 1 = 5/x

2y = 5/x - 1

y = (5/x - 1)/ 2

f^-1(x) = ( 5/x - 1) / 2

Hope it will help :)

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Parallelogram ABCD is a rectangle.
astra-53 [7]
You must set the equations equal to each other.
Meaning, 3y - 5 = 5y
divide both sides by -3y, you'll get -5/2.

Then make an equation:
2ax = bd
2(3y-5) = 5y
6y − 10 = 5y

Subtract 5y from both sides.
y − 10 =0

Add 10 to both sides.

<span>y = 10</span>
4 0
3 years ago
Read 2 more answers
Help me please <br>show your solution ​
m_a_m_a [10]

Answer:

Rule: Multiplying ×5 in turn

50 { third term}

1,250 {fifth term}

Step-by-step explanation:

2 × 5 = 10 {second term}

10 × 5 = 50 { third term}

50 × 5 = 250 { fourth term}

250 × 5 = 1,250 {fifth term}

5 0
2 years ago
A real estate agent works on 7% commission. What is her commission on a house that she sold for $210,600?
loris [4]
To find how much the real estate agent made, we must multiply the two. 
Note: It is crucial that you put 7% as a decimal. 

210600*0.07= 14742

Therefore, the real estate agent made $14,742

Hope this helps!
8 0
3 years ago
Please help me with number 12 I’m begging you please help me please I’m struggling so much with this question please help me I’m
ASHA 777 [7]

Answer:

6/4 miles or write like 1 1/2miles.

Step-by-step explanation:

Half way to his friend's home is 3/4 miles.

So the total miles should be:

3/4+3/4=6/4=1 1/2

5 0
3 years ago
Can someone please help me i don’t get this at all!?
Verdich [7]
She bought N pencils last month for 288, as the amount is in pennies. This month she bought N+12 for 720.

288/N = 720 / (N+12)
288(N+12) = 720N
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N=8

She bought 8 pencils last month for 288, which is 36 cents each. And she bought 20 pencils this month for 720 which is 36 cents each. Hope this helped :)
8 0
3 years ago
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