Answer:
Step-by-step explanation:
Given
Required
Express in terms of and
Express 21 as 7 * 3
Apply law of logarithm
. So, we have:
Rewrite:
Answer:
C
Step-by-step explanation:
I'm not 100% but to find the area of a triangle you need to multiply length times width times height, then divide by .5. No promises this is right because I dont I have a calculator.
Answer:
He will save $15.00
Step-by-step explanation:
You multiply $2.25 by 20 days and that is equal to 45
So $45.00 - $30.00 that would be $15.00
Answer:
She can bake 72 cookies in 30 minutes
Step-by-step explanation:
24 · 3 = 72
Answer:
115°
Step-by-step explanation:
Knowing that the sum of all interior angles of any triangle is 180 degrees, we can find the measurement of the missing angle of the triangle. The calculation is 180 - 75 - 40 = 65. Then, notice that the blue angle and the missing angle are supplementary (linear; add up to 180 degrees). So we can find the blue angle's measurement by 180 - 65, so the answer is 115 degrees.