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Aliun [14]
3 years ago
12

Two time the sum of x plus 3 is 6 more than than two times x

Mathematics
1 answer:
IgorLugansk [536]3 years ago
5 0

Answer:

2(x+3)=2x+6

2x+6=2x+6

Step-by-step explanation:

2(x+3)=2x+6

2x+6=2x+6

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Find the product 2/5 * 5/6
Oduvanchick [21]

Answer:

1/3

Step-by-step explanation:

It's easier to do multiplications like this if you write the fractions as follows:

2      5

---- * ---- = 2/6 = 1/3 (answer)

5      6

7 0
3 years ago
7/10 as a sum of fraction.
nalin [4]

0.7  or  0.70 can be your answer

4 0
3 years ago
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In the United States, the mean and standard deviation of adult men's heights are 70 inches (5 feet 10 inches) and 4 inches, resp
Artyom0805 [142]

Answer:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

Step-by-step explanation:

For this case we can convert all the values to inches in order to standardize the solution:

5ft * \frac{12 in}{1ft}= 60 in

6ft * \frac{12 in}{1ft}= 72 in

Let X the random variable that represent the heights of US mens, and for this case we know the distribution for X is given by:

X \sim N(70,4)  

Where \mu=70 and \sigma=4

We are interested on this probability

P(X>72)

We can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

5 0
3 years ago
Neil goes to the pet shop and selects a treat for his dog. He chooses one, returns it to the bunch, and the chooses another. Wha
ivolga24 [154]

Answer:

%50

Step-by-step explanation:

5 0
3 years ago
1.
GREYUIT [131]
People who picked up vanilla cupcakes = 80% x 53 

<u> 80% x 53  = 0.8 x 53 = 42 people </u>(nearest whole number)

42 people picked vanilla cupcakes


Volume of a sphere = 4/3πr³

<u>4/3πr³ = 4/3π(7)³ = 1436.8 cm³</u>

The volume of the sphere is 1436.8 cm³
3 0
3 years ago
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