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3 years ago

MARKING BRAINLIEST!!!!

Mathematics

2 answers:

elixir [45]3 years ago

7 0

The answer is C because of you simplify 4/40 is 1/10

Irina18 [472]3 years ago

7 0

Answer:

C 40

Step-by-step explanation:

1/10 = 4/b

1 x ? = 4 ?=4

10x4 = 40

4/40 = 1/10

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1. In a four-hour TV program, the commercials show 10% of the time.

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

I have devided10/100 I hope you can understand from the picture posted there

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3 years ago

11. An experiment is set up to study the weights of 45 frogs after they are given a hormone treatment. The population mean is 22

sveta [45]

Answer: The standard error of the sample mean = 0.44

Step-by-step explanation:

Standard error of the sample mean = $\dfrac{\sigma}{\sqrt{n}}$ <em> , where </em> $\sigma$ = population standard deviation , n= sample size.

Given : n= 45 , $\sigma= 2.96$ grams

The e standard error of the sample mean $=\dfrac{2.96}{\sqrt{45}}$

$=\dfrac{2.96}{6.7082039325}\\\\\approx\ 0.44$

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3 years ago

Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!

Anni [7]

Answer:

180- $x^{2}$

Step-by-step explanation:

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3 years ago

Mitch is buying candy bars for his friends. He wants to give 2 bars to each friend, and he wants to have 10 spare bars. He can a

Olenka [21]

The answer is 2.2f-10=16

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3 years ago

Find the product of the expression:<br> (5p^3) (-1m^8p^2)

Rainbow [258]

Answer:

We conclude that:

$\left(5p^3\right)\:\left(-1m^8p^2\right)=-5p^5m^8$

Step-by-step explanation:

Given the expression

$\left(5p^3\right)\:\left(-1m^8p^2\right)$

Apply the rule:

$a\left(-b\right)=-ab$

so the expression becomes

$\left(5p^3\right)\left(-1\cdot \:m^8p^2\right)=-5p^3\cdot \:1\cdot \:m^8p^2$

Apply the rule:

$a^b\cdot \:a^c=a^{b+c}$

so the expression becomes

$=-5p^{3+2}\cdot \:1\cdot \:m^8$ ∵ $p^3p^2=p^{3+2}$

$=-5p^5\cdot \:1\cdot \:m^8$

$=-5p^5m^8$

Therefore, we conclude that:

$\left(5p^3\right)\:\left(-1m^8p^2\right)=-5p^5m^8$

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3 years ago