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3 years ago

Apply the distributive property to factor out the greatest common factor. 30+42= equals

Mathematics

1 answer:

NARA [144]3 years ago

7 0

Answer:

Step-by-step explanation:

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How to determine if an equation is linear or not?

AlladinOne [14]

If it's linear, it will follow the format:

y = mx + b

m is the slope, and b is the y intercept.

5 0

3 years ago

Read 2 more answers

1.Lin and her brother each created a scale drawing of their backyard, but at different scales. Lin used a scale of 1 inch to 1 f

IceJOKER [234]

Answer:Part 1) The scale for the drawings without units are 1/12 and 1/36

Part 2) The scale drawing 1/12 is 3 times larger than the scale drawing of 1/36. The explanation in the procedure

Step-by-step explanation:we know that

1) Lin used a scale of

Remember that

1 ft=12 in

substitute in the scale

That means ----> 1 unit in the drawing represent 12 units in the actual

2) Her brother used a scale of

Remember that

1 yd=36 in

substitute in the scale

That means ----> 1 unit in the drawing represent 36 units in the actual

therefore

The scale for the drawings without units are 1/12 and 1/36

Part 2) Whose drawing is larger?

The scale drawing 1/12 is larger than the scale drawing of 1/36

To find out how many times as large is the scale 1/12 than the scale of 1/36

Divide 1/12 by 1/36

The scale drawing 1/12 is 3 times larger than the scale drawing of 1/36

Explanation

Let supposing that we want to represent in the drawing a measure that in its real size measures 36 units.

In the scale of 1/12, the drawing will show a measure of 3 units (remember 3(12)=36 units).

At the 1/36 scale, the drawing will show a measurement of 1 unit (remember 1(36)=36 units).

Therefore the largest drawing will be with a scale of 1/12.

4 0

3 years ago

Read 2 more answers

A population data set produced the following information. N=460, ∑x=3920, ∑y=2650, ∑xy=26,570, ∑x2=48,530 Find the population re

NikAS [45]

Regression line is given in the form of: y = a + bx
Where b is the gradient

Working out 'b'

$b = \frac{S_{xy}}{S_{xx}}$
$S_{xy} =$ Σxy - [ΣxΣy]/N
$S_{xx}=$ Σx² - [Σx]²/N

$S_{xy} = 26570 - \frac{(3920)(2650)}{460}= \frac{91710}{23} =3987.39$
$S_{xx}=48530- \frac{(3920)^2}{460}=15124.78$
$b= \frac{3987.39}{15124.78}=0.264$

Working out 'a'

a = [∑y/N] - b[∑x/N]
a = [2650/460] - 0.264[3920/460]
a = 5.86 - 2.25
a = 3.61

Regression line equation is
y = 3.61 + 0.264x

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3 years ago

Whats the answer to 2 2/8

Masja [62]

2 2/8=10/8 22/8=2 6/8 or 2 3/4

6 0

3 years ago

Read 2 more answers

I dont understand pls help me

ryzh [129]

Answer:

the answer is the option B 35