Answer:
c=16
Step-by-step explanation:
hello :
x2+8x+c is the perfect square means : x²+8x+c= (x+a)²
x²+8x+c = x²+2ax+a²
so : 2a=8
c=a²
a=8/2 = 4 but : c = a²
conclusion : c=16
Its A (1st one)
"<span>The interior angles of both a regular and irregular pentagon have a sum of 540o. "
</span>Regardless of it's shape if it's a polygon with 5 sides (whether is it regular or not) the interior angles with have the sum of 540 degrees.
Answer:
Both angles are 51°
Step-by-step explanation:
By the Vertical Angles Theorem, both angles are congruent.
Step 1: Set up equation
68 - x = 3x
Step 2: Solve for <em>x</em>
68 = 4x
x = 17
Step 3: Find angles
68 - 17 = 51°
Simple....
you have:
-12+5k=15-4k
isolate the variable...
-12+5k=15-4k
+12 +12
5k=27-4k
5k=27-4k
+4k +4k
9k=27
k=3
Thus, your answer.
Answer:
<em>15 times and more. After she pours the 15th container, in the middle of the next one, the work will be done.</em>
Step-by-step explanation:
<u>Length, Area, and Volume Scale Factors</u>
If two similar shapes have a length scale factor of a:b, then the scale factor of their areas (or surface lateral areas) is
and the scale factor of their volumes is
.
We are given the scale factor of the surface areas of two similar containers A and B as 4:25.
The length scale factor is

The volume scale factor is:
= 125:8 = 15.625
Warda needs to fill with oil and pour into container B 15.625 times to get container B full of oil.
Thus, after she pours the 15th container, in the middle of the next one, the work will be done