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MakcuM [25]
3 years ago
14

What operation must be used on the exponents in order to simplify the expression? (x^3)^7

Mathematics
1 answer:
mylen [45]3 years ago
3 0

Answer: So the trick I was taught to use was PEMDAS which stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction. You solve the parenthesis first, followed by exponents if there are any. Multiplication and division are equal. So if there's multiplication and division in the problem, you solve the one closest to the left or start of the equation first. The same rules apply for addition and subtraction. They are both equal so you solve the first one first, even if the subtraction is before the addition.

Step-by-step explanation:

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stellarik [79]

Answer:

the answer is 8cm i think

6 0
3 years ago
Which equation has an a-value of -2,a b-value of 1 , and a c-value of 3? A. 0=-2x^2+x+3 B. 2x^2+x+3 C. 0=-2x^2+3. 0=2x^2-x+3
katrin2010 [14]

Answer:A

Step-by-step explanation:

0=-2x^2+x+3

-2x^2+x+3=0

a=-2 b=1 c=3

6 0
3 years ago
How to find square root ?​
Dominik [7]

To estimate a square root, find the two perfect squares the number is closest to, then continue with further decimals, i.e. if the question is square root of 5, it is between 4 and 9.  As such, the answer is between 2 and 3.  Alternatively, use a calculator for a quick estimation of many decimal points.

5 0
2 years ago
Read 2 more answers
Please help me. Please!!
Y_Kistochka [10]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Multiple choice: 
Paha777 [63]
In the given you wrote -2, whereas it should be -2i

z = a + bi and in trigo form | z |.(cos Ф + i.sin Ф).
z = 0 -2i → | z |.(cos Ф + i.sin Ф)
Now let's calculate z:
 
z² = a²+b² → z² = 0² (-2.i)² → z = -2(i)² →z= -2(-1) → z = |2|
tan Ф = b/a = -2/0 → tan Ф → - ∞ ↔ Ф = -90° or Ф = 270°
 then the - 2 I ↔ |2|(cos 270° + i.sin 270°)

7 0
3 years ago
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