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2 years ago

7.4 Centimeters to kilometers

Mathematics

1 answer:

Ket [755]2 years ago

7 0

Answer:

.00074 km

Step-by-step explanation:

7.4 cm * 1 m * 1km =7.4/100/100=.00074

100 cm 100m

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Don’t worry about number 7 just 5 and thank you

oksian1 [2.3K]

Subtract 15 from both sides

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2 years ago

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Find the measurement of either the leg or the hypotenuse: A = B = 21 C =<br> 35

Varvara68 [4.7K]

Answer: x = 40.81 or 41

Step-by-step explanation:

A = B = 21

C = 35

Hypotenuse = x

Calculating Hypotenuse:

21^2 + 35^2 = x^2

=> 441 + 1225 = x^2

=> x^2 = 1666

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2 years ago

Find two consecutive even natural number whose product is 168

Oduvanchick [21]

$2n(2n+2)=168\\
4n^2+4n-168=0\\
n^2+n-42=0\\
n^2+7n-6n-42=0\\
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(n-6)(n+7)=0\\
n=6 \vee n=-7\\
-7\not \in \mayhbb{N}\\\\
2n=12\\
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These numbers are 12 and 14.

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2 years ago

What is the strongest relationship you can infer between two variables from this statement? The number of minutes you can talk o

Elenna [48]

It wokls be b. I hope this helps

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1 year ago

Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 9 adult smartphone use

forsale [732]

Answer: 0.9617

Step-by-step explanation:

Given : The proportion of adults use their phones in meetings or classes : p=0.57

Number of adults randomly selected : n= 9

Let x be the random variable that represents the number of adults use their phones in meetings or classes.

By using binomial probability formula, to find the probability of getting success in x trials.

$P(x)=^nC_xp^x(1-p)^{n-x}$

The probability that at least 3 of them use their smartphones in meetings or classes will be :-

$P(x\geq3)=1-P(x$

Hence, the required probability is 0.9617 .

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2 years ago