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4 years ago

I need Help PLS again

Mathematics

2 answers:

Nitella [24]4 years ago

8 0

Answer:

B. 18+(-7)

Hope this helps!!!!!!

Strike441 [17]4 years ago

3 0

Answer:

Step-by-step explanation:

It is saying the same thing as 18-7 just in the parenthesis (-7).

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What is the area of the triangle? --55.............. units?

mr_godi [17]

Answer:

the area is 10

Step-by-step explanation:

Area of a triangle = base times height divided by 2

brainliest pls :D

4 0

3 years ago

8x - 6x + 1 = 11 Please explain your work! Thank you!

Vesnalui [34]

Answer:

x = 5

Step-by-step explanation:

8x - 6x + 1 = 11

Add 6x to each side (because the 6 is negative)

8x + 1 = 11 - 6x

Subtract 1 from each side (because the 1 is positive)

8x = 10 - 6x

Subtract 6x from 8x

2x = 10

Divide by 2

x = 5

8 0

3 years ago

Read 2 more answers

The volume of a rectangular prism is 6x3 + 25x2 + 21x − 10. The length of the prism is 2x + 5. The width of the prism is 3x − 1.

aev [14]

Expression for the height of the prism is x + 2

Solution:

Given that,

$Volume\ of\ a\ rectangular\ prism = 6x^3+25x^2 + 21x - 10$

$Length\ of\ prism = 2x + 5$

$Width\ of\ prism = 3x-1$

To find: height of prism

The volume of rectangular prism is given by formula:

$Volume = length \times width \times height$

Solving for height we get,

$height = \frac{volume}{length \times width}$

Substituting the values we get,

$height = \frac{6x^3+25x^2+21x-10}{(2x+5)(3x-1)}$

Factor the numerator

$height = \frac{(x+2)(3x-1)(2x+5)}{(2x+5)(3x-1)}$

Cancel the common factors,

$height = x + 2$

Thus expression for the height of the prism is x + 2

5 0

3 years ago

you have been given an engine repair job that has a job time of 7 hours how many minutes should you allow for your job?

Soloha48 [4]

Answer:

$Job\ Time = 420\ minutes$

Step-by-step explanation:

Given

$Job\ Time = 7\ hours$

Required

Determine the job time in minutes

To do this, we simply convert the time to minutes.

$1\ hour = 60\ minutes$

$7\ hours = 7 * 60\ minutes$

So, we have:

$Job\ Time = 7 * 60\ minutes$

$Job\ Time = 420\ minutes$

Hence, the job time in minutes is 420 minutes

3 0

3 years ago

¿Cuál de las siguientes fracciones algebraicas se puede reducir?

-Dominant- [34]

Do you know how to translate that in English

6 0

3 years ago