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3 years ago

5

If f(6)=7, find f−1(7)

1 answer:

9966 [12]3 years ago

7 0

Answer is 6
Plz believe

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Question 2 (5 points)<br> What is the value of x?<br> HELP ASAP

Anton [14]

Step-by-step explanation:

$In \: \triangle HDT, \: BM || DT.. (given) \\ \\ \therefore \: \frac{HM}{MT} = \frac{ HB}{ BD} \\ (by \: basic \: proportionality \: theorem) \\ \therefore \: \frac{6}{x} = \frac{9}{15} \\ \\ \therefore \: x= \frac{15 \times 6}{9} \\ \\ \therefore \: x= \frac{90}{9} \\ \\ \therefore \: x= 10 \\ \\$

3 0

3 years ago

I HAVE 5 MINUTES PLEASE HELP (15 points)

erastova [34]

The answer choice is a. y=(-1/2)x

7 0

3 years ago

Read 2 more answers

the total cost for material and labor for performing a blood test is $38.52. if the lab adds 15 2/5% to this cost for profit, wh

just olya [345]

Answer:

$44.45

Step-by-step explanation:

Convert 15 2/5% to decimal, =0.154

38.52+(38.52x0.154) (do this to add the cost of the % increase)

≈$44.45.

6 0

3 years ago

Read 2 more answers

What does x equal and what does y equal? Thank you. (Answer and explanation please.)

Scrat [10]

Answer:

stdgjdfsfdmgdlgyhkagrhnalghgkfkikah sJo

4 0

3 years ago

Sam needs to make a long-distance call from a pay phone. With his prepaid phone card, he will be charged $1.00 to connect and $0

Mademuasel [1]

Answer: The required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

Step-by-step explanation: Given that Sam needs to make a long-distance call from a pay phone.

We are to write a system to represent the situation.

Let x represent the number of minutes Sam talked on the phone and y represents the total amount that he paid for the call.

According to the given information,

with prepaid phone card, Sam will be charged $1.00 to connect and $0.50 per minute.

So, the equation representing this situation is

$y=1+0.5x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Also, if Sam places a collect call with the operator he will be charged $3.00 to connect and $0.25 per minute.

So, the equation representing this situation is

$y=3+0.25x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

Thus, the required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

3 0

3 years ago