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8090 [49]
4 years ago
15

Solve for the variable x in the question -2.9-x=-7.4 a=4.5. b=-10.3. c=-4.5. d=10.3

Mathematics
1 answer:
cluponka [151]4 years ago
3 0

Answer:

C. x=-4.5

Step-by-step explanation:

To solve, you need to Isolate the variable


To do this, you need to get rid of the -2.9 next to the x


Do this by adding (it cancels out the -2.9 on the left side) 2.9 to the WHOLE EQUATION.


This leaves you with x=-4.5 or C

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olchik [2.2K]

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For the first-rate;

1,440 gallons in 3 hours

We calculate the unit rate.

By Dividing the total volume by the total time,

1440 / 3 = 480 gallons/ hours

For the second rate:

960 gallons in 120 minutes

Converting minutes to hours:

120 minutes = 2 hours

We calculate the unit rate.

By dividing the total volume by the total time,

960 / 2 = 480 gallons / hour

For the third rate:

720 gallons in 1.5 hours

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By dividing the total volume by the total time,

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4 0
1 year ago
If a ball is dropped from a height of 18 feet, the function f(x) = 18(0.75)* gives the height
NeTakaya

Answer:

<h2>At the 7th bounce, the ball reached 2.3 feet height.</h2>

Step-by-step explanation:

The given expression is

f(x)=18(0.75)^{x}

This exponential function represents the movement of a bouncing ball after being dropped.

x represents the bounce number.

So, at 7th bounce means x=7, replacing this value in the function, we have

f(7)=18(0.75)^{7}=18(0.13) \approx 2.34

Therefore, at the 7th bounce, the ball reached 2.3 feet height.

8 0
4 years ago
Please helpp me thank you 20 pts
pogonyaev
I'm pretty sure it is C

5 0
4 years ago
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Keith_Richards [23]
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The answer is D.
8 0
3 years ago
Read 2 more answers
A sphere has a diameter of 28 millimeters. What is the circumference of the great circle? Use 3.14 for p.
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The answer is b. 87.92 millimeters
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3 years ago
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