What is the product of 8.0 x 10^2 and 7.4 x 10^2 expressed in scientific notation?

Answer:

d. 7.3

Step-by-step explanation:

To get the standard deviation of a population of data, first take the sum of all the values, and divide it by the count to get the mean (average).

75 [1] + 90 [2] + 75 [3] + 80 [4] + 90 [5] + 80 [6] + 100 [7] + 85 [8] + 80 [9] + 85 [10] = 840.

Then divide by the count which is 10.

840/10 = 84 [This is the mean of the data.]

Then subtract every point of data from the mean and square it:

(75-84)^2 + (90-84)^2 + (75-84)^2 + (80-84)^2 + (90-84)^2 + (80-84)^2 + (100-84)^2 + (85-84)^2 + (80-84)^2 + (85-84)^2 = 81 + 36 + 81 + 16 + 36 + 16 + 256 + 1 + 16 + 1 = 540.

Then to get the variance, divide this all by the count.

540/10 = 54 [This is the variance of the data.]

Then all you have to do to get the standard deviation is take the square root of the variance.

√54 = 3√6 ≈ 7.3 [This is the standard deviation of the data.]

Answer:

-610, -94, -0.75, 2.1, 53

Answer:

70 feet

Step-by-step explanation:

3.5 times 20=70.

Answer:

ok bro

Step-by-step explanation:

that would be a ray because it has a single endpoint and extends infinetly in one direction.

Answer:

x = No Real Solutions

Step-by-step explanation:

[tex]-10x^2+7x+1=37[/tex]

37-1=36; [tex]-10x^2+7x+(-36)=0[/tex]

[tex]x=\frac {-7(+/-)\sqrt{7^2-4(-10)(-36)}} {2^-10}[/tex]

[tex]x=\frac {-7(+/-)\sqrt{-1391}} {-20}[/tex]

x = No Real Solutions

Answer:

5 and she will have 4/5 remaining.

Step-by-step explanation:

If you multiply the 5 slices per pizza by 4 pizza's you would be able to feed 20 students. Since her goal is to make sure EACH student gets 1/5 of a pizza she would need to order another one. So she needs to purchase 5 pizzas and would have 4 slices remaining.

(She could always eat those by herself or give them to me lol)

Hope that helps and have a great day!

Answer:

Mrs. Johnson need to order 5 pizzas.

Step-by-step explanation:

1. If you do 5, 10, 15, 20 that’s four

2. it’s not fair to leave one kid out so she needs to order 5 pizzas

Answer:

n = -2

Step-by-step explanation:

n − 8 = −10

n = -2

Answer:

n = -2

Step-by-step explanation:

Answer:

The type of transformation is translation and the change can be described as a translation of 5 to the right.

Answer:  one face is 16 square inches

Step-by-step explanation:

[tex]\sqrt[3]{64} = 4[/tex]  side length

4 × 4 = 16  the area of one face

Answer:

-4/27

Step-by-step explanation:

first write -4 1/2 as a fraction, which is -9/2. Then you divide by 1/3:

-9/2 / 2/3=

-2/9 * 2/3 =

-4/27

Good luck on your report card!

Answer:

79.25

Step-by-step explanation:

8*5=40

40-3/8=39.625

39.625*2=79.25

Hope this helps

Answer: 3266.528

Step-by-step explanation:

The number 531.775197122 is rounded to the nearest ten thousandth place by 531.7752

What is rounding up numbers?

There are basically two rules while rounding up numbers

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down and if the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up.

Given data ,

Let the number be = A

Let the rounded number be = B

The value of A is given by

A = 531.775197122

Now , the number A can be rounded of to the nearest ten thousandth place by rounding to the nearest 0.0001 or the Ten Thousandths Place

So , the number will be

The 1 in the ten thousandths place rounds up to 2 because the digit to the right in the hundred thousandths place is 9

When the digit to the right is 5 or greater we round away from 0

Therefore , the number 531.775197122 is rounded to 531.7752

Therefore , the value of B is 531.7752 after rounding up

Hence , The number 531.775197122 is rounded to the nearest ten thousandth place by 531.7752

To learn more about rounding up of numbers click :

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Answer:

11 duh

Step-by-step explanation:

Answer: 235,000,000

Step-by-step explanation:

Answer:

add 16 to both sides so it would 2x=-48 then you would divide 2 on both sides so it would be x=-24

Step-by-step explanation:

X=-24

Answer:

-16 + 2x = -64

+16 +16

2x = -48

-48÷2=-24

x = -24

The value of x is 0.918 for the equation 3.2x - 1.7x + 5.5 = 10.

To determine this equation 3.2x - 1.7x + 5.5 = 10,

3.2x - 1.7x + 5.5 = 10

Subtract 10 on both side,

3.2x - 1.7x + 5.5 - 10 = 10 - 10

3.2x - 1.7x + 4.5 = 0

Subtract 4.5 on both side,

3.2x - 1.7x = -4.5.

4.9x = -4.5

x = 0.918.

Therefore, the value of x is 0.918.

Learn more about equation here:

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Answer:

13

Step-by-step explanation:

1. Collect like-terms

-23=-a-10

2.Isolate variable

-13=-a

a=13

Answer:

A=13

Step-by-step explanation:

-23=-2a-10+a

add 10 to -23 which is now

-13=-2a+a

now add -2a and a together to get -1a

-13=-1a

divide -1 into both sides to get

13=a

Answer:

3,0

0, -10

Step-by-step explanation:

Answer:

626

Step-by-step explanation:

Answer:

3: 38

4: 36

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

Answer:

1. 3.65%

2. 14,235

3. 49402.75

4. 185,795.04

5. 181,895.0375

Step-by- step explanation:

[tex] \frac{7}{9} \times (8 \frac{3}{7} + 5 \frac{11}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times (8 \frac{6}{14} + 5 \frac{11}{14} ) = \\ [/tex]

[tex] \frac{7}{9} \times (13 \frac{6 + 11}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times (13 \frac{17}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times (14 \frac{3}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times ( \frac{14 \times 3 + 3}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times ( \frac{42 + 3}{14}) = \\ [/tex]

[tex] \frac{7}{9} \times ( \frac{45}{14}) = \frac{7 \times 45}{9 \times 14} = \frac{5}{2} \\ [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

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Answer:

[tex]\displaystyle \frac{199}{18}[/tex]

Step-by-step explanation:

Fraction Operations

Before attempting to operate with the given fractions, we need to express all of them in the form a/b, because the last 2 fractions are in mixed form.

[tex]\displaystyle 8\frac{3}{7}=8+\frac{3}{7}=\frac{8*7+3}{7}=\frac{59}{7}[/tex]

[tex]\displaystyle 5\frac{11}{14}=5+\frac{11}{14}=\frac{5*14+11}{14}=\frac{81}{14}[/tex]

Now for the sum of the last two fractions:

[tex]\displaystyle \frac{59}{7}+\frac{81}{14}[/tex]

Make both denominators equal by multiplying by 2 both parts of the first fraction:

[tex]\displaystyle \frac{59}{7}+\frac{81}{14}=\frac{118}{14}+\frac{81}{14}[/tex]

[tex]\displaystyle =\frac{118+81}{14}=\frac{199}{14}[/tex]

Now multiply by 7/9:

[tex]\displaystyle \frac{199}{14}*\frac{7}{9}=\frac{199}{18}[/tex]

Answer: y=5x

each 1 ounce of paint is 5 bottles.

Answer: skew

Step-by-step explanation:

Just did it

Answer:

$815.63

Step-by-step explanation:

Commission=10875(.075)

                    =815.625

Answer:

percent=25.56%

Step-by-step explanation:

Percentages

To know the percentage of having n elements out of a total of m elements, we calculate the ratio n/m and express the result as a percentage.

The shoe store has 23 pairs of white shoes out of 90 total pairs of shoes. The percent of white tennis shoes is calculated as follows:

[tex]\displaystyle percent= \frac{23}{90}*100\%[/tex]

Operating:

percent=25.56%