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3 years ago

Use inverse operations to solve the equations -7×=119×=

Mathematics

1 answer:

nignag [31]3 years ago

6 0

The answer to they is x=0

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The answer to these please!

igomit [66]

$\sqrt[4]{(4a^{2})^{6}} = \sqrt[4]{4096a^{12}} = 8a^{3}$

$\sqrt[7]{(b^{\frac{5}{3}})^{8}} = \sqrt[7]{b^\frac{40}{3}} = b^{\frac{40}{21}} = \sqrt[21]{b^{40}} = \sqrt[21]{b^{21} * b^{19}} = \sqrt[21]{b^{21}} \sqrt[21]{b^{19}} = b\sqrt[21]{b^{19}}$

$\sqrt[3]{\frac{c^{9}}{c^{3}}} = \sqrt[3]{c^{6}} = c^{2}$

$\sqrt[3]{27d^{6} * 8d^{-4}} = \sqrt[3]{27d^{6} * \frac{8}{d^{4}}} = \sqrt[3]{216d^{2}} = 6\sqrt[3]{d^{2}} = 6d^{\frac{2}{3}}$

4 0

3 years ago

Read 2 more answers

Data were collected from a typing class with 45 students. The class had an average of 56 words per minute (WPM) with a standard

STALIN [3.7K]

Answer:

Standard deviation gets smaller

Step-by-step explanation:

No. of students = 45

The class had an average of 56 words per minute (WPM) with a standard deviation of 7 WPM.

$Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\56=\frac{Sum}{45}\\56 \times 45=Sum\\2520=Sum$

The teacher realized that the data from one student who typed 55 WPM was not entered.

So, new sum = 2520+55

New sum =2575

So, new mean = $\frac{2575}{45}$

New mean =57.22

Standard deviation is the measure of distance between observation and mean

So, if number gets closer to mean , Standard deviation gets smaller . if the numbers get bigger , Standard deviation gets bigger.

Since 55 is closer to 57.22

So, Standard deviation gets smaller

4 0

3 years ago

A student solved this problem and said the answer was cups.

Bogdan [553]

I think the answer is d sorry if its not

4 0

3 years ago

What would be da answer people

aivan3 [116]

Answer:

n=2

Step-by-step explanation:

(-y + -2 ) + ( 3y + 6)

-y + 3y = 2y

2 + (-6) = -4

equals to ( 2y - 4)

4 0

3 years ago

Read 2 more answers

Evaluate. 6[5(3-9)-1]+2 the answer of this divided by the answer of this one 7(8-2)+4

Andru [333]

6[5(3-9)-1]+2
order of operations:
Parentheses
Exponents
Multiplication and Division together
Addition and Subtraction together
6[5(3-9)-1]+2
6[5(-6)-1]+2
6[-30-1]+2
6[-31]+2
-186+2
-184

7(8-2)+4
7(6)+4
42+4
46

-184/46
-82/23
about -3.6

4 0

3 years ago