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Kipish [7]
4 years ago
9

F(x)=4x+7 Place the steps for finding f -1(x) in the correct order.

Mathematics
1 answer:
dybincka [34]4 years ago
6 0

X=4x+7

X=4y+7

X-7=4y

X-7/4=y

F-1(x)=x-7/4

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Hannah completed 1/5 of a worksheet in 1/4 of an hour. How much of a worksheet will she complete in one hour?
Molodets [167]
Answer: 4/5
1/5 worksheet is done for every 1/4 hour
1/4 = 1/5
2/4 =2/5
3/4 = 3/5
4/4 = 4/5
4 0
3 years ago
An electric company has to track on-time payments and late payments for each customer monthly. It is impossible for a customer t
OLga [1]

Answer:

The  probability that a customer pays late each month is    P(B)  =  0.27

Step-by-step explanation:

Let     P( A ) be the probability that the customer pays on time and the value is  0.55

Let  P( B )  be the  probability that a customer pays late each month

So

  The probability that a customer pays late or on-time each month  is  P(A u B) and  the value is  0.82

The probability that a customer pays on-time and late each month is  P(A n B) and  the value is  zero ( 0 ) given that it is impossible

   Now The probability that a customer pays late or on-time each month  is mathematically represented as

      P(A u B)  =  P(A) +  P(B)  -   P(A n B)

=>     0.82  =  0.55 + P( B ) -   0

=>    P(B)  =  0.27

8 0
3 years ago
Please assist me with this
svp [43]

Answer:

<h2>The answer is option A</h2>

Step-by-step explanation:

To find the value of x when y = 24, we must first find the relationship between them

<h3>y \:  \:  \alpha  \:  \:  \frac{k}{ \sqrt{x} }</h3>

where k is the constant of proportionality

when

x = 16

y = 2

Substitute the values into the above formula and solve for k

That's

<h3>2 =  \frac{k}{ \sqrt{16} }  \\ 2 =  \frac{k}{4}</h3>

Cross multiply we have the answer as

k = 8

So the formula for the variation is

<h3>y =  \frac{8}{ \sqrt{x} }</h3>

Now when y = 24

We have

<h3>24 =  \frac{8}{ \sqrt{x} }  \\ 24 \sqrt{x}  = 8 \\  \sqrt{x}  =  \frac{8}{24}  \\  \sqrt{x}  =  \frac{1}{3}</h3>

Square both sides

<h3>( { \sqrt{x} })^{2}  = ( { \frac{1}{3} })^{2}</h3>

We have the final answer as

<h2>x =  \frac{1}{9}</h2>

Hope this helps you

5 0
3 years ago
Solve for x. y = 2x^2 + 7x + 3. please show work!!
Wewaii [24]

Let y = 0

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Using the quadratic formula, we get x = -3 and x = -1/2.

8 0
3 years ago
Read 2 more answers
Y / 770<br>work:<br>Solution y =​
Aloiza [94]

Answer:

Step-by-step explanation:

y + 77 = 180   {straight line}

y = 180 - 77

y = 103°

8 0
4 years ago
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