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umka21 [38]
3 years ago
12

Evaluate the expression when x = 8 and y = 1.

Mathematics
2 answers:
timama [110]3 years ago
5 0
The answer is b. Hope this helped
jeka57 [31]3 years ago
4 0
The answer should be 4.

First, simplify  to 4. Your problem should look like: 4 x 1. 
Second, multiply. 4 x 1 = 4 so that is your answer.

Also, 
to start the equation up, make sure to add in the numbers in replace for the letters. Your problem to start with should look like: .
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John di Silvestre obtained a loan to buy a cello for $8,400. He pays 12% exact interest on the loan for 146 days. What is the am
Svetradugi [14.3K]
<span>Normally when they tell you interest rate they say per annum meaning the percent interest rate for a year.

But in this problem they seem to say John pays 12% for a 146 day loan.

So interest = P * r / 100 = 8400 * 12/100 = $1,008.00
Maturity value = Principal + Interest = 8400 + 1008 = $9,408.00</span>
7 0
3 years ago
1/sin30 - √3/cos10 =4 prove it?​
Crank

Step-by-step explanation:

1/sin10-√3/cos10

= (cos10 - √3sin10)/cos10sin10

multiplying 1/2 in denominator and numerator

= {(cos10/2) - (√3sin10/2)}/(cos10sin10/2)

= (cos60cos10 - sin60sin10)/(cos10sin10/2)

= cos(60 + 10)/(cos10sin10/2)

= cos70/(cos10sin10/2)

= 2cos70/cos10sin10

multiplying 2 on numerator and denominator

= 4cos70/2sin10cos10

=4cos70/sin20

=4cos70/cos70

= 4  proved

8 0
3 years ago
Out of A class of sixth graders, 30% join the band. If there are 186 graders in total, how many are in band?
kvv77 [185]

Answer:

55 (approx.)

Step-by-step explanation:

30% of 186 students joined the band

(30/100) × 186

5580/100

55.8

= 55 students (approx.)

(the answer will come approximate as final is in decimal)

8 0
3 years ago
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miskamm [114]
The correct answer is D
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4 years ago
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