Answer:
<h2>30 mm</h2>
Step-by-step explanation:
The formula of an area of a circle:
<em>r</em><em> - radius</em>
<em />
We have
Substitute:
<em>divide both sides by π</em>
<em>use π ≈ 3.14</em>
The diameter <em>d = 2r</em>.
Therefore
Answer:
The answer is y=-x+4 and y=-3x+2
Step-by-step explanation:
Answer:
Sure thing!
For the first equation 6v+38≤ -4
The answer would be v≤-7
and for the second equation 2(v+3)≥-2
the answer would be v≥-4
Step-by-step explanation:
6v+38≤ -4
Subtract 38 from both sides
6v+38-38≤-4-38
Simplify
6v≤-42
Divide both sides by 6
6v/6≤-42/6
Simplify
v≤-7
SAME THING FOR THE OTHER
2(v+3)≥-2
Divide both sides by 2
2(v+3)/2≥-2/2
Simplify
v+3≥-1
Subtract 3 from both sides
v+3-3≥-1-3
And finally, simplify
v≥-4
PLEASE MARK AS BRAINLIEST
This is an odd problem. The length and width look like they should be interchanged. Anyway I'll solve it and we'll talk about the results.
(x +7) (x + 3) = 396
x^2 + 7x + 3x + 21 = 396
x^2 + 10x + 21 = 396 Subtract 21 from both sides.
x^2 + 10x = 396 - 21
x^2 + 10x = 375
x^2 + 10x - 375 = 0 This probably factors.
(x + 25)(x - 15)
x + 25 = 0
x = - 25 which makes no sense. Negatives do not describe room dimensions.
x - 15= 0
x = 15. this is fine.
x+3 = 15 + 3 = 18
x + 7 = 15 + 7= 22
Check
=====
Area = L * W = 18 * 22 = 496. It does check.
22 should be the length
18 should be the width.
Answer:
6
Step-by-step explanation:
