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4 years ago

How do i simplify -3x-15?

Mathematics

2 answers:

galina1969 [7]4 years ago

8 0

Answer:

$45$

Step-by-step explanation:

$-3 \times -15$

Cancel the negative signs on both sides.

$3 \times 15$

Evaluate.

$=45$

Sindrei [870]4 years ago

3 0

Answer: -x-5

Step-by-step explanation:

-3x-15 . Both 3 and 15 are variables of 3, this means they can both be divided by 3. -3/3= -1 and -15/3=-5. So -1x-5, or -x-5

Hope this helped! :)

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sattari [20]

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3 years ago

Damon, Dave & Dina share some money in

scoray [572]

Answer:

6/18

Step-by-step explanation:

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3 years ago

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8m^2+ 40m<br> -------------------<br> 8m

dsp73

Answer:

$(m+5)$

Step-by-step explanation:

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3 years ago

A rectangular prism that has a length of 8 feet, width of 6 feet, and height of 12 feet. What is the volume of the prism? ft3

Lady bird [3.3K]

Answer:

The volume of the prism is 576 cubic feet

Step-by-step explanation:

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Height of rectangular prism = 12 feet

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3 years ago

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The children in my subdivision were bored one summer and decided to hold a competition to see who could run to the end of the st

Ainat [17]

Answer:

6.7% of children who finished the race in under 45 seconds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 75 seconds

Standard Deviation, σ = 20 seconds

We are given that the distribution of time of completion is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(finished the race in under 45 seconds.)

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Calculation the value from standard normal z table, we have,

$P(x < 45) = 0.067 = 6.7\%$

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4 0

3 years ago