All categories

3 years ago

Can someone please help

Mathematics

1 answer:

romanna [79]3 years ago

4 0

9514 1404 393

Answer:

A. m - n = 5

Step-by-step explanation:

The applicable rule of exponents is ...

(a^m)/(a^n) = a^(m-n)

Here, we have a=x and m-n=5.

You might be interested in

Find the future value of the principal.<br>help me pls :(

Vitek1552 [10]

Answer:

54,000

Step-by-step explanation:

30,000/8% then multiply the answer by 10 than add that to 30,000

3 0

3 years ago

HELP!

lidiya [134]

Step-by-step explanation:

So it's really easy if you read it carefully, the only thing you need to do is 63,000 - 6,922 = _____ and that's it hope it helps

3 0

2 years ago

-3(4x-6)=7-12x(solve)(show work)

erma4kov [3.2K]

Hi there!

»»————-　★　————-««

I believe your answer is:

There is no solution to the equation.

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\boxed{\text{Calculating the Answer...}}\\\\-3(4x-6)=7-12x\\-------------\\\rightarrow -12x+18 = 7 - 12x\\\\\rightarrow -12x + 18 - 18 = 7 - 18 -12x\\\\\rightarrow -12x=-12x-11\\\\\rightarrow-12x+12x = -12x+12x - 11\\\\\rightarrow 0 = -11\\\\\boxed{\text{This is a \underline{contradiction}. There is no solution.}}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

3 0

3 years ago

The load that can be supported by a rectangular beam varies jointly as the width of the beam and the square of itsâ height, and

storchak [24]

The question is incomplete.Here is the complete question.

The load that can be supported by a rectangular beam varies jointly as the width of the beam and the square of its length, and inversely as the length of the beam. A beam 13 feet long, with a width of 6 inches and a height of 4 inches can support a maximum load of 800 pounds. If a similar board has a width of 8 inches and a height of 7 inches, how long must it be to support 1300 pounds?

Answer: It must be 392 inches or approximately 33 feet.

Step-by-step explanation: According to the question, the measures (width, length and height) of a beam and the weight it supports are in a relation of <u>proportionality</u>, i.e., if divided, the result is a constant.

For the first load:

width = 6in

height = 4in

length = 13ft or 156in

weight = 800lbs

Then, constant will be:

$\frac{6.4^{2}}{156} k = 800$

$k=\frac{800.156}{96}$

k = 1300

For the similar beam:

$\frac{8.7^{2}}{L}1300=1300$

L = 49.8

L = 392in or 32.8ft

A similar board will support 1300lbs if it has 392 inches or 32.8 feet long.

6 0

3 years ago

When positive integer A, which has n digits, is multiplied by (n+2) , the product is a number with (n+1) digits, all of whose di

amid [387]

Answer:

A = 95238 (only)

Step-by-step explanation:

The question is equivalent to asking what n-digit number consisting only of the digit n will be divisible by n+1. Of the numbers 1, 22, 333, 4444, ... 999999999, the only one is 666666, which is divisible by 7.

The 5-digit integer A is 666666/7 = 95,238. There is only one instance of A.

5 0

3 years ago