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3 years ago

Is y=2x+3 proportional

2 answers:

8 0

No because something proportional can't have a y-intercept, the 3 is the y intercept so your statement is not proportional.

Nataly [62]3 years ago

7 0

Answer:

Step-by-step explanation:

I calculated

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If BI=9 and HA=15, find the scale factor

inessss [21]

Answer:

5:3

Step-by-step explanation:

to find the scale factor you set up the proportion as 15/9 and reduce to 5/3

7 0

3 years ago

The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length

valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall = 10+2x

Since , Area of rectangle = length x width

Then, as per given,

$252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9$

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

Hence, length is 28 feet and width is 9 feet of the wall of the barn.

7 0

4 years ago

Write a linear equation for slope: 0; y-intercept: -8

Novosadov [1.4K]

Answer:

x = -8

Step-by-step explanation:

Since there is no slope, there is no need for a y variable to appear in your final equation. The graph will cross y = -8 horizontally. So therefore, x = -8

This is a pretty short explanation, but there's not too much to it. Hope this helped :)

5 0

3 years ago

PLEASE HELP ME!!<br> (Geometry)

telo118 [61]

Answer:

a = -7

B= *4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Answer plz?!?! and explanation plz?!?

jenyasd209 [6]

Answer:

Step-by-step explanation:

Radius = 4

area:

4x4x3.14x12=602.88

8 0

3 years ago