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Travka [436]
3 years ago
11

A rectangle has a perimeter of 30. It is dilated by a scale factor of 2.

Mathematics
1 answer:
LuckyWell [14K]3 years ago
5 0

Answer:

It is 60.

Step-by-step explanation:

When shapes are dilated (when they get bigger or smaller), perimeter changes linearly—in direct proportion with length. This means if the scale factor is 2, then you multiply it by 2. 2 multiplied by 30 equals 60.

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The second of two numbers is 8 less than twice the first. their sum is 19. Find the two numbers
Radda [10]
The first number is 9 and the second number is 10. 10+9=10. 9*2=18 and 10 is 8 less than 18. All the requirements of the numbers are met.
3 0
3 years ago
PLZ HELP I GIVE BRAINLIST!!
Tom [10]

Answer:

5

Step-by-step explanation:

X + 2y = 13

Since x = 3

3 + 2y = 13

2y = 13 - 3

2y = 10

Divide both sides by 2

Y = 5

4 0
3 years ago
Read 2 more answers
Solve for x in the equation 2x^2+3x-7=x^2+5x+39
Alina [70]

Answer:

x=1±√47

Step-by-step explanation:

it's up above.

8 0
3 years ago
Nikolas and Angela were trying to solve the equation:
mario62 [17]
  • Answer:

<em>zero product property (Angela)</em>

  • Step-by-step explanation:

<em>Hi there ! </em>

<em> (Angela)</em>

<em>3x² + 10x = 0</em>

<em>x(3x + 10) = 0</em>

<em>x = 0 => x₁ = 0</em>

<em>3x + 10 = 0 => 3x = - 10 => x₂ = - 10/3 = - 3  1/3</em>

<em>Good luck !</em>

7 0
3 years ago
If the ratio of the arc length to r is 1, then the measure of is 1 radian.
bixtya [17]
Well the radian is the measure of the radius
this line measure is then ligned up to the circumference
mearuse of 1 raidan is always equal to the measure of the radius therfor the true statements are

ratio of arc legnth to r is always equal to 1

I'm not sure what 'if the measure of is'

but I think the answer is
if the measure of is 1 radis, than the arc legnth is r since r reaprensents radius

so first and third choice are correct
5 0
3 years ago
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