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3 years ago

Don’t understand the problem

Mathematics

1 answer:

tensa zangetsu [6.8K]3 years ago

8 0

Add the parentheses together first then subtract the rest

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7 divided by 1/2<br><img src="https://tex.z-dn.net/?f=7%20%5Cdiv%7C%201" id="TexFormula1" title="7 \div| 1" alt="7 \div| 1" alig

Elan Coil [88]

The answer should be 14

7 0

2 years ago

Read 2 more answers

Older people often have a hard time finding work. AARP reported on the number of weeks it takes a worker aged 55 plus to find a

mote1985 [20]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

PLZ ANSWER ASAP!!!!! Part B

bazaltina [42]

The equation of the linear regression is $\^ y = 3.58125\^x + 202.575$

<h3>Graphing tool</h3>

To determine the line of best fit, we make use of a graphing tool

See attachment for the graph of the line of best fit

<h3>The equation</h3>

From the graphing tool, we have the following calculation summary

Sum of X = 440
Sum of Y = 3601.5
Mean X = 44
Mean Y = 360.15
Sum of squares (SSX) = 1440
Sum of products (SP) = 5157

The regression Equation is then represented as:

$\^y = b\^x + a$

Where:

$b = \frac{SP}{SSX}$ and $a = \bar y - b \times \bar x$

$b = \frac{5157}{1440}$

$b = 3.58125$

Also, we have:

$a = \bar y - b \times \bar x$

$a= 360.15 - (3.58\times 44)$

$a = 202.575$

So, the linear regression equation is:

$\^ y = 3.58125\^x + 202.575$

Read more about linear regression at:

brainly.com/question/17844286

4 0

3 years ago

How to find the circumference of a circle

Alborosie

Answer:

Step-by-step explanation:

The distance around a rectangle or a square is as you might remember called the perimeter. The distance around a circle on the other hand is called the circumference (c).

circle diameter radius

A line that is drawn straight through the midpoint of a circle and that has its end points on the circle border is called the diameter (d)

Half of the diameter, or the distance from the midpoint to the circle border, is called the radius of the circle (r).

The circumference of a circle is found using this formula:

C=π⋅dorC=2π⋅r

5 0

3 years ago

Anyone in 10th grade please help me because I have to pass this later at 10 pm:(

Alenkinab [10]

18) $19m^8n^8-\left(4m^5n\right)\left(3m^3n^7\right)$

$=19m^8n^8-4m^5n\cdot \:3m^3n^7$

$=19m^8n^8-12m^8n^8$

$=7m^8n^8$

19) $\left(-5cd\right)\left(-3c^4d\right)-\left(7c^2d^2\right)\left(2c^3\right)$

$=5cd\cdot \:3c^4d-7c^2d^2\cdot \:2c^3$

$=15c^5d^2-14c^5d^2$

$=c^5d^2$

6 0

3 years ago