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oksian1 [2.3K]
3 years ago
10

Write an expression that shows how to multiply 7 x 256 using expanded form and the distributive property

Mathematics
2 answers:
natali 33 [55]3 years ago
6 0
256×7=1792 in expanded form it is 1000+700+90+2
sattari [20]3 years ago
6 0

Answer:

7\times 200+7\times 50+7\times 6

Step-by-step explanation:

We are asked to write an expression that shows the multiplication of 7\times 256 using expanded form and the distributive property.

First of all, we will write 256 in expanded form as:

256=200+50+6

Now, we will multiply 7 by (200+50+6) as:

7\times (200+50+6)

7\times 200+7\times 50+7\times 6

Therefore, our required expression would be 7\times 200+7\times 50+7\times 6.

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No, because it <em>is not a straight line when graphed.</em>
3 0
3 years ago
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Laboratory experiment shows that the life of the average butterfly is normally distributed with a mean of 18.8 days and a standa
inessss [21]

Answer:

a) 0.4164

Step-by-step explanation:

Mean lifespan (μ) = 18.8 days

Standard deviation (σ) = 2 days

For any given lifespan 'X', the z-score is:

z=\frac{X- \mu}{\sigma} \\z=\frac{X- 18.8}{2}

For X=12.04 days:

z=\frac{12.04 - 18.8}{2} \\z=-3.38

A z-score of -3.38 falls in the 0.036-th percentile of a normal distribution.

For X=18.38 days:

z=\frac{18.38 - 18.8}{2} \\z=-0.21

A z-score of -3.38 falls in the 41.68th percentile of a normal distribution.

The probability that a butterfly lives between 12.04 and 18.38 days is

P=41.68-0.036\\P=41.64\%\ or\ 0.4164

6 0
3 years ago
Solve for x.<br> 7 inches<br> Х<br> 11 inches
jonny [76]

Answer:

8.49 inches

Step-by-step explanation:

x^2 + 7^2 = 11^2

x^2 + 49 = 121

X^2 = 121 - 49

x^2 = 72 (then take square root on both sides)

x = 8.49 inches

7 0
3 years ago
CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU.
svp [43]

Answer:

13/20

Step-by-step explanation:

To add fractions without the common denominator, you have to make them equal so

1/4 x 5 = 5/20

2/5 x 4 = 8/20

5/20 + 8/20 = 13/20

3 0
2 years ago
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63/3= 21
So 21 miles per gallon of gas
To find 7, you multiply it by 7
21*7= 147
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5 0
3 years ago
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