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3 years ago

What is (7 + x) + 7x

2 answers:

ozzi3 years ago

8 0

8x + 7 just drop the parentheses and combine like terms...you can drop the ()s because 1 is understood to be the factor times it

melomori [17]3 years ago

4 0

The answer to (7+x)=7x is equal to 8x+7.

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Pls Help! Which graph A,B or C?

julsineya [31]

Answer:

Answer=C

Step-by-step explanation:

6 0

3 years ago

If P(A) = 3/4, P(B) = 1/2, and P(A u B) = 7/8, what is P(A n B)? 1/8 3/8 7/8 5/8

Sophie [7]

The answer of the set is(3/8)

5 0

4 years ago

A stick of butter in the shape of a rectangular prism has a length of 8 inches, a width of 3 inches, and a height of 3 inches. W

SVEN [57.7K]

Answer:

$72in^3$

Step-by-step explanation:

the information we know about the shape of the stick of butter:

$length = 8in$

$width = 3in$

$height=3in$

The formula for the volume of a rectangular prism is:

$volume=length*width*height$

we find the volume by multiplying ll the measurements of the stick.

So we substitute the values to find the volume and we get the following:

$volume=8in*3in*3in\\volume=72in^3$

the volume of the stick of butter is $72in^3$

5 0

3 years ago

Employees at a company are given £1,300 to spend on items for the office. They decide to buy a coffee machine and as many bean b

suter [353]

Answer:

£10

Step-by-step explanation:

There may be a far easier way to do this, but this is how I did it and still came up with the correct solution.

-Assuming they buy at least 15 bags, they will get a 20% discount.

-20% discount would mean they only pay 80% of the original price. 80%=.80

-let x represent number of bean bags

£50 per bean bag multiplied by sale price .80, plus cost of coffee machine £370 must be equal to or less than £1300.

(50x)(.80) + 370 = 1300

Simplify:

40x + 370 =1300

Subtract 370 from both sides

40x = 930

Divide both sides by 40

X=93/4

Simplify fraction

23 1/4

=23.25

But since they cant buy .25 (quarter) of a bean bag, we reduce* to nearest whole number. We can not increase* to nearest whole number as this would exceed their budget.

23 bean bags. They can buy 23 bean bags at £40 each + coffee machine for £370.

£40(23) + £370 = £1290

£1300-£1290=£10

I hope this helps!

4 0

3 years ago

I really need help

Alex

Answer:

See step by step

Step-by-step explanation:

To find if a function intervals are possible, make sure the points are above the x axis.

The graph is getting positve around x=-3 but it isn't positive yet.

The graph is positve until x=-1

The graph becomes positive again again at x=2 and is positive infinitely forever.

So let set up our interval

We are going to start at -3 since that where it start getting positive, we then going to use the greater than sign since it get positve as we go to the right as of right now. We use the greater than becuase we are not going to include -3 as our solutions.

We then use a less than sign since the answer must be less than -1 becuase around-1 it start getting negative.

It becomes positive again at x=2 so since we going to left to right use the greater than sign becuase we are not including 2.

It infinitely becomes positive so our interval is x must be cause greater than w becuase it can be any interval greater than two.

$- 4 > x < - 1$

and

$2 < x$

The roots or zeroes are the x intercept of the graph,(when y=0, what is the x value.)

The x intercepts are -3 and 2.

3 0

3 years ago