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blagie [28]
3 years ago
14

What are the laws of exponents for class 7​

Mathematics
1 answer:
finlep [7]3 years ago
8 0

Answer:

Multiplication of no. with same base

division of no. with same base

taking power of a power

multiplication of two numbers with same exponents

division of two numbers with same exponents

numbers with exponents 0

numbers with negative exponent

Step-by-step explanation:

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What is the result if 3x-9 is evaluated when x = -5?​
Anton [14]

Answer:

Step-by-step explanation:

I wonder if it is the minus that is causing the problem?

Let x = - 5

3*(-5) - 9

-15 - 9

This is a money question. If you are 15 dollars in debt and you spend another 9, where are you? (In the company of the American government. They do this all the time).

- 15 - 9 = - 24

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=6x%5E2%20%3D%20726" id="TexFormula1" title="6x^2 = 726" alt="6x^2 = 726" align="absmiddle" cla
vova2212 [387]

Answer:

x=11\\

Step-by-step explanation:

6x^2=726 First, you need to divide everything by 6.

x^2=121Then you put everything in a radical to get this:

x=11

3 0
3 years ago
Read 2 more answers
Solve using the unit rate problems find the constant speed 60 miles in 1.5 hours what is the answer.
kherson [118]
40 miles per hour. if you take 60 divided by 1.5(the speed over time) you get 40mph
7 0
3 years ago
Solve the following computation: 8.29 – 3.112
Ymorist [56]

Answer:

5.178

Step-by-step explanation:

Cancel the 9 for an 8

\hspace{10px}8.290\\\underline{-3.112}\\\text{     } \text{    }5.178\\

5 0
3 years ago
I need help plss!! I don’t understand
MA_775_DIABLO [31]

Since it says what the area of the circle is, you need to work the problem backwards from finding the area. So it would be 100 ÷ 3.14 = 31.84 that is the radius. Next you need to find the diameter, so 31.84 × 2 = 63.68. Now you multiply 63.68 × 3.14 = 199.95, round that to 200, divide 200 ÷ 2 = 100 ÷ 2 = 50 miles

Answer= 50 miles

4 0
3 years ago
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