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hodyreva [135]
3 years ago
15

What is the value of 11x^-3 y^-1 for x=-1 and y=2

Mathematics
1 answer:
andrey2020 [161]3 years ago
3 0

Answer:

  -11/2

Step-by-step explanation:

Put the numbers into the expression and do the arithmetic.

  11(-1)^{-3}2^{-1}=\dfrac{11}{(-1)^3}\cdot\dfrac{1}{2^1}=\dfrac{-11}{2}

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What is $0.12 in cents?
natka813 [3]

Answer:

12 cents

Step-by-step explanation:

7 0
3 years ago
The sum of the measures of angle M and R are complemetary. The measure of the angle M is (5×+90). The measre of angle R is 55. W
Alexandra [31]

Answer:

The value of x is - 11  

Step-by-step explanation:

Given as :

∠ M = (5x +90) °

∠ R = 55°

The sum of measure of angle M and R are complementary

Complementary Angle are those when sum of two angle equal to 90°

∵ Angle M and R are complementary in nature

∴ ∠ M + ∠ R =  90°

Or, (5x +90) ° + 55°  =  90°

Or, 5x = 90° - 90°  - 55°  

Or, 5x = - 55°

∴      x = - \frac{55}{5} = - 11

Hence the value of x is - 11        Answer

5 0
4 years ago
To compare the production techniques used by foreign and local firms in Brazil, a random sample of 80 foreign firms and a random
alina1380 [7]

Answer:

An independent sample.

Step-by-step explanation:

In this scenario, to compare the production techniques used by foreign and local firms in Brazil, a random sample of 80 foreign firms and a random sample of 80 local firms are selected. We can safely conclude that this study uses an independent sample design.

An independent sample design can be defined as a research method that usually involves the use of multiple experimental groups (two or more). The samples or participants are only in one group and as such each group has no relationship with the other. This simply means that, the samples in a particular group is having no relationship with the other samples in another group.

Ultimately this implies, each samples are independent and satisfies only one condition of the independent sample design during the experiment to compare the production technique used by foreign and local firms in Brazil.

<em>Hence, the researcher would use only two variables or conditions: a random sample of 80 foreign firms and a random sample of 80 local firms are selected.</em>

6 0
3 years ago
Which is used to find the number of ways a given number of objects can be ordered? need help asap please im between factorial an
raketka [301]
Factorial is the correct answer because in combinations the order does not matter
8 0
4 years ago
Read 2 more answers
Simplify 3√125. Thanks!
ivann1987 [24]
If you mean
3 times square root of 125 then go to AAA
if you mean ∛125 then go to BBBB


AAAAAA
3 times √125=3 times 5√5=15√5

BBBBBBB
∛125=5 or -5
5 0
4 years ago
Read 2 more answers
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