It’s C)21/20 because for tan you do the opposite side over the adjacent. SOHCAHTOA (sin: opposite/hypotenuse cos: adjacent/hypotenuse tan: opposite/adjacent)
Answer:
(x, y) = (3, 1)
Step-by-step explanation:
given the 2 equations
2x + 3y = 9 → (1)
x + 5y = 8 → (2)
multiplying (2) by - 2 then adding to (1) will eliminate the term in x
multiply (2) by - 2
- 2x - 10y = - 16 → (3)
add 1(1) and (3) term by term
(2x - 2x) + (3y - 10y) = (9 - 16)
- 7y = - 7 ( divide both sides by - 7 )
y = 1
Substitute y = 1 in either (1) or (2) and solve for x
(1) : 2x + 3 = 9 ( subtract 3 from both sides )
2x = 6 ( divide both sides by 2 )
x = 3
Solution is (3, 1 )
Answer:
390cm
Step-by-step explanation:
1. find area of rectangle
1. 15cm x 20cm= 300 cm
2. find area of triangle
1. 1/2 (12 x 15)= 90cm
300+90
Answer:
Step-by-step explanation:
<em>Hey there!</em>
<u><em>Given info</em></u>
9(x + 4)
<u><em>Solve!</em></u>
9*x = <u>9x</u>
9*4 = <u>36</u>
<u><em>Answer</em></u>
<u>9x + 36</u>
D. 9x + 36
<em>Hope this helps :)</em>
