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2 years ago

What is the value of the function y=3x-1 when x = –1? a. –8 b. –4 c. 2 d. 6?

Mathematics

1 answer:

balandron [24]2 years ago

4 0

Substitute -1 for x. 3(-1)-1=-4.

(B)

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I WILL GIVE BRAINLEST AND CREATE A RANDOM QUE FOR U TO GET AN EXTRA !!!!!50!!!!! POINTS (ONLY IF YOU ACTUALLY SHOW YOUR WORK AND

Westkost [7]

I think the first one is a simple as it gets

for the second one it could be simplified to 6x^6-4 because u combine the x terms and distribute the power

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2 years ago

Read 2 more answers

A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was ac

djyliett [7]

Answer:

The actual water in the tank is 29.76 gallons.

Step-by-step explanation:

It is given that the farmer estimated amount of water is 25 gallons.

It is also given that he underestimate the water in tank by 16%.

Let the actual water in tank be x.

$(1-\frac{16}{100})x=25$

$(\frac{100-16}{100})x=25$

$84x=25\times 100$

$x=\frac{2500}{84}$

$x=29.7619$

$x\approx 29.76$

Therefore the actual water in the tank is 29.76 gallons.

8 0

2 years ago

The table shows the profit ( in thousand) for each month of a business. Which power regression function best describes the data?

soldi70 [24.7K]

Answer:

the correct answer is A.

Step-by-step explanation:

Hope it will help you..

7 0

2 years ago

Which of the following statements about the box-and-whisker plot below is not true?

Alex_Xolod [135]

Answer: D

Step-by-step explanation:

Because the Midrange data set shown is 55

3 0

3 years ago

An airplane is flying from New York city to Los Angeles.The distance it travels in Miles, D, is related to the time in seconds,

deff fn [24]

We have been given an equation $d=0.15t$ that represents the distance an airplane travels in Miles (d) is related to the time in seconds (t).

A. Upon substituting t=1 in our equation we will get,

$d=0.15\times 1$

$d=0.15$

We can see that our plane is travelling at rate of 0.15 miles per second.

$\text{Speed of plane }=0.15\frac{\text{miles}}{\text{second}}$

Therefore, plane is flying at the rate of 0.15 miles per second.

B. To find distance traveled by airplane in 30 seconds we will substitute t=30 in our given equation.

$d=0.15\times 30$

$d=4.5$

Therefore, plane will travel 4.5 miles in 30 seconds.

C. To find time it will take to travel 12.75 miles we will substitute d=12.75 in our given equation.

$d=0.15\times t$

$12.75=0.15\times t$

$t=\frac{12.75}{0.15}=85$

Therefore, plane will take 85 seconds to travel 12.75 miles.

6 0

2 years ago