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3 years ago

12

Find the perimeter and area of the rectangle. 6.9 in 2.4 in

1 answer:

saveliy_v [14]3 years ago

7 0

Answer:The perimeter = 18.6 , The area= 16.56

Step-by-step explanation: The perimeter is all sides added together and there are four sides and two sides are even , so there are two ways to find it. {1} 6.9x2=13.8 , 2.4x2=4.8; 13.8+4.8=18.6…{2} 6.9+6.9+2.4+2.4=18.6.

The area is two sides multiplied together so, 6.9x2.4=16.56

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Nancy wants to buy a sweater that is priced at $75. If the store is running a 60% off sale, what will be the

AleksAgata [21]

Answer:

$30.00

Step-by-step explanation:

The original price of the sweater is $75.00. The new sale price is the original price of 100% less 60% of the original price. That means the sales price is 40% of the original price.

You can do this 2 ways:

1. $75 x 60% or .60 = $45

$75-45 = $30

or

2. $75 x 40% or .40 = $30

3 0

2 years ago

When using the order of operations to simplify (7 + 3) * 4 - 1 + (6 + 8), which operation should be performed first?

enot [183]

Answer:

addition because it's in parentheses and following PEMDAS parentheses comes first so you do addition first.

I hope you find this helpful :D

5 0

2 years ago

Read 2 more answers

Which equation of the least squares regression line most closely matches the data set?

Rudiy27

Answer: y = 3.5 x+ 43.8

Step-by-step explanation:

Here x represents the number of years after 1990

Thus, we get the table that is used to find the equation will be,

x 0 2 4 6 8

y 45 51 57 61 75

Let the equation that shows the above data,

y = b + a x ---------(1)

$\text{Where, }a=\frac{\sum y \sum x^2-\sum x \sum xy}{n(\sum x^2)-(\sum x)^2}$

$\text{And, }b = \frac{\sum xy - \sum x\sum y}{n\sum x^2 - (\sum x)^2}$

By the above table,

$\sum x = 20$

$\sum xy = 1296$

$\sum x^2 = 120$

$\sum y = 289$

By substituting these values in the above value of a and b,

We get b = 43.8 and a = 3.5

Substitute this value in equation (1)

we get, the equation that shows the given data is,

y = 3.5 x + 43.8

⇒ Option (3) is correct.

4 0

3 years ago

Read 2 more answers

I need help before with this before 12:00 am

frutty [35]

Answer:

7.18 light-years

Step-by-step explanation:

6.8 x 10^13 = 68,000,000,000,000

9.46 x10 ^12 = 9,460,000,000,000

6.8 x 10^13 * 1 light year / 9.46 x 10^12 = 7.188 light years.

Have a Merry X-MAS Plz MArk Branilest

6 0

3 years ago

Read 2 more answers

Help!!! Choose the product . - 6p ^ 3 * (3p ^ 2 + 5p - 1)

Lunna [17]

Answer:

$-18p^{5} -30p^{4} +6p^{3}$

Step-by-step explanation:

$(-6p^{3} )(3p^2+5p-1)$

$(-6p^3)(3p^2)+(-6p^3)(5p)+(-6p^3)(-1)$

$-18p^{5} -30p^{4} +6p^{3}$

<em>hope this helps.....</em>

8 0

3 years ago