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marta [7]
3 years ago
8

What is the range of f(x)=3x+9

Mathematics
2 answers:
denpristay [2]3 years ago
7 0

Answer:

The answer is: {y|y>9}

Nataly_w [17]3 years ago
3 0

Answer:

The range is all real numbers or (-∞, ∞)

Step-by-step explanation:

You can  plug in any real value of x into this function to output another real value.

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At a park, it costs $9.75 an hour to rent a bicycle. It costs $7.25 an hour to rent a scooter. Aaron has a coupon
klemol [59]

Answer:

Step-by-step explanation:

I would write an inequality at this point

The variable would be the amount of hours(x) it would take for the costs to tip the scales

9.75x-10≥7.25x

-10≥-2.5x

4≥x

It would take them 4 hours for the costs to be equal, so anything higher than this would work

8 0
3 years ago
Read 2 more answers
What is container B that is full after the pumping is complete ?
scoray [572]

<em>Answer</em>

68.4%

<em>Step-by-step explanation</em>

The volume of a cylinder is calculated as follows:

V=\pi r^2h

where <em>r </em>is the radius and <em>h </em>is the height of the cylinder.

In the case of cylinder A, its radius is r = 5 ft (= 10/2) and its height is h = 14 ft. Then, its volume is:

\begin{gathered} V_A=\pi\cdot5^2\cdot14 \\ V_A=350\pi\text{ ft}^3 \end{gathered}

In the case of cylinder B, its radius is r = 8 ft (= 16/2) and its height is h = 8 ft. Then, its volume is:

\begin{gathered} V_B=\pi\cdot8^2\cdot8 \\ V_B=512\pi\text{ ft}^3 \end{gathered}

After the pumping is completed all the liquid in cylinder A, which was full, is placed in cylinder B. If the volume of cylinder B represents 100%, then we need to find what percent, <em>x</em>, represents the volume of cylinder A. We can do this with the help of the next proportion:

\frac{512\pi\text{ ft}^3}{350\pi\text{ ft}^3}=\frac{100\text{ \%}}{x\text{ \%}}

Solving for x:

\begin{gathered} 512\pi\cdot x=100\cdot350\pi \\ x=\frac{100\cdot350\pi}{512\pi} \\ x\approx68.4\text{ \%} \end{gathered}

6 0
2 years ago
I just need the answers on this and a couple other worksheets please.
Vika [28.1K]
Good lesson and good day ^-^

3 0
3 years ago
Find the slope of the line between (4,1) and (7, 9)
sergij07 [2.7K]

Answer:

8/3

Step-by-step explanation:

4 0
3 years ago
When testing whether the correlation coefficient differs from zero, the value of the test statistic is t20=1.95 with a correspon
expeople1 [14]
Given:
value of the test statistic is t20 = 1.95
corresponding p-value of 0.0653 at the 5% significance level

No, I can't conclude that the correlation coefficient differs from zero because the p-value, which is 0.0653 exceeds 0.05. 

The correlation coefficient differs from zero when the p-value is less than 0.05.

3 0
3 years ago
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