Answer:
m∠BEF = 65.3°
Step-by-step explanation:
Given:
m∠DEB = 27.2,
m∠DEF = 92.5
Required:
m∠BEF
SOLUTION:
Since B is the interior of ∠DEF, it means ∠DEB and ∠BEF are adjacent angles that make up ∠DEF. And they share the same side, BE.
Therefore:
m∠BEF + m∠DEB = m∠DEF (angle addition postulate)
m∠BEF + 27.2 = 92.5
Subtract 27.2 from each side
m∠BEF + 27.2 - 27.2 = 92.5 - 27.2
m∠BEF = 92.5 - 27.2
m∠BEF = 65.3°
Answer:
It's the law of cosines
Step-by-step explanation:
law of cosines states that
so we know that a = 7, b = 4, and alpha would be 135 degrees, so just plugging it in gets us 49+16-2*7*4*(-0.707) = 65 + 39.59 = 104.59
Answer:
D. 18m-145
Step-by-step explanation:
(M+8)(m-8) is just m^2-64. So (m-9)^2 is m^2-18m+81. So m^2-64-m^2+18m-81 is the answer. We can reduce into -64+18m-81 or 18m-145.
Answer:
$3,364.86
Step-by-step explanation:
3287.9*(14.5%/12)=39.73
3287.9 +39.73 interest = 3,327.63 - 1,200 (payment)=2127.63
2127.63 x (14.5%/12)=25.71
2127.63 + 25.71 interest = 2153.34 - 1200 (payment)=953.34
953.34 x (14.5%/12)=11.52
953.34 + 11.52 interest = 964.86
1200 + 1200 + 964.86 = $3,364.86
Answer:
(A)The company keeps 25% of the amount paid for each copy and charges the photographer $0.50 for every copy purchased.
Step-by-step explanation:
The price determined for each copy=p
Given the equation : 10(0.75p - 0.5)
According to the expression,
The photographer is given 0.75p. This means the company keeps 25% of the amount paid for every copy.
Furthermore:
10 X 0.5 = $5
Therefore, the company charges the photographer $0.50 for evert copy purchased.
The correct option is A.