Select the proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5 A. (5 + 6) + 4 B. (4 + 6) + 5 C. 4 + (6 + 5) D. (5 + 4) + 6

Answers

Answer 1

Answer: im guessing that by making 10 it will speed up the addition process so it should be
B since (6+4) = 10 then +5 =15

Answer 2

Answer: the answer is B becuase 6+4=10 10+5=15

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Solve the following equation. Remember to check for extraneous solutions 7/(b+3) + 5/(b-3) = (10b-2)/(b²-9).
Rewrite the function y = x2 - 6x + 14

Plzzz help 4^2 × 5^2 -30

Answers

Answer:

4^2 x 5^2 - 30 = 370

Answer:

370

Step-by-step explanation:

4^2 = 16

5^2 = 25

25 x 16 = 400

400 - 30 = 370

Your welcome! :D

a typical stone on the lowest level of the great pyramids of egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and weighed 15 tons. what was the volume of the average stone? how much did one cubic foot of this stone weigh?

Answers

your total volume is 150 cubic feet and your weigh is .1 tons each cubic foot

By definition, future value is?

Answers

Answer:

Future value is the value of an item calculated after certain years on a given value at a given certain interest rate.

Future value is always increasing in nature and when future value is decreasing it is know as Depreciate value.

And is calculated using the formula as stated

$FV=P(1+(r)/(100) )^n$

Where P is the principal amount that is the given amount for which we have t calculate the future value.

r is the rate of interest and it is the rate at which the given principal value is increasing.

n is the time period for which the principal value is kept.

Future value is the value of an asset at a specific date. It measures the nominal future sum of money that a given sum of money is "worth" at a specified time in the future assuming a certain interest rate, or more generally, the rate of return; it is the present value multiplied by the accumulation function.

Bob needs to drive 592 miles to get to a family reunion. He travels 187 miles the first day. If he averages 52 miles per hour the second day, how long will it take him to reach his destination?

Answers

miles left to cover on 2nd day- 592-187=405 miles
to cover 405 miles, 405/52=7.78 hours needed=7h 47 mins

6.) 9p2 + 6p - 8
-12factoring trinomials

Answers

Answer:

9p2 + 6p - 8 -12 = 9p^2 + 6p -20

Step-by-step explanation:

You can't change 9p^2 or 6p as we do not know what p is equal to but

-8 + (-12) = -20

So if we put it all together we get 9p^2 + 6p -20

Click on the pic,, plz help

Answers

Answer: - 2x^2 + 4x + 3

Step-by-step explanation:

( -x^2 - 4x - 5) + ( -x^2 + 8x + 8)

Take out parentheses:

- x^2 - 4x - 5 - x^2 + 8x + 8

Write in a way so that like terms are grouped together:

- x^2 - x^2 - 4x + 8x - 5 + 8

Combine 'x^2' terms:

- 2x^2 - 4x + 8x - 5 + 8

Combine 'x' terms:

- 2x^2 + 4x - 5 + 8

Combine integers:

- 2x^2 + 4x + 3

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