Answer:
<u>(3, -1)</u>
Step-by-step explanation:
<u>Given</u>
<u>Subbing the value of y</u>
- 4x + 5(3x - 10) = 7
- 4x + 15x - 50 = 7
- 19x = 57
- x = 3
- y = 3(3) - 10
- y = 9 - 10
- y = -1
- Solution is <u>(3, -1)</u>
Answer:
5
Step-by-step explanation:
Evaluate (h + k)(x) then substitute x = 2 into the result
(h + k)(x) = h(x) + k(x)
h(x) + k(x) = x² + 1 + x - 2 = x² + x - 1, thus
(h + k)(2) = 2² + 2 - 1 = 4 + 2 - 1 = 5
Answer:
29
Step-by-step explanation:
a+b+b+c+a+c=58
2a+2b+2c=58
divide by 2
a+b+c=29
Answer:
Option C. 6.5
Step-by-step explanation:
From the question given above, the following data were obtained:
Angle B = 80°
Side opposite B (b) = 10
Angle C = 40°
Side opposite C (c) =?
We can obtain the value of c by using the sine rule as illustrated below:
b / Sine B = c / Sine C
10 / Sine 80 = c / Sine 40
Cross multiply
c × Sine 80 = 10 × Sine 40
Divide both side by Sine 80
c = (10 × Sine 40) / Sine 80
c = 6.5
Thus, the value of c is 6.5