Right Angle - 90 Degrees
A+B+C = 180
90+B+51 = 180
141 + B = 180
B = 39
Answer:
#1) 1
#2) 3
Step-by-step explanation:
#1) y = mx + c
m (gradient) = difference of y/difference of x
= 0.5 - (-0.5) / (- 3) - 3
= - 1/6
c (intercept) = (-3,0.5) take any coordinate and substitute
= 0.5 = - 1/6 * - 3 + c
c = 0.5 - 1/2
c = 0
Equation is
y = - 1/6x
#2) slope is the gradient
Gradient = difference of y/difference of x
Gradient = 10- 6/0-24
Gradient = - 1/6
Answer:
168
Step-by-step explanation:
We would like to multiply these two expressions together and then substitute -2 in for x to solve.
f(x) * g(x) = (8 - 10x) * (5x + 4)
We will use FOIL (first, outer, inner last):
(8 - 10x) * (5x + 4) = 8 * 5x + 8 * 4 + (-10x) * 5x + (-10x) * 4
Combining terms, we get:
f(x) * g(x) = 32 - 50x²
Plug -2 in for x:
32 - 50 * (-2)² = 32 - 50 * 4 = 32 - 200 = -168
The answer is thus 168.
<em>~ an aesthetics lover</em>
Answer:
1: y= -15x
2: in the ss
Step-by-step explanation:
Answer:
7) 8/25
11) 9/2 or 4 1/2
13) 23/40
17) 7/6 or 1 1/6
19) 61/10 or 6 1/10
Step-by-step explanation:
Some of the numbers are REALLY hard to read. Please check that I used the right numbers.
7) Is that 2/3 or 2/5? I think it’s 2/5. If so, 2/5x4/5=8/25
11) 3/4÷1/6=3/4x6/1=18/4=9/2
13) 3/8+1/5=15/40+8/40=23/40
17) 1 3/4x2/3=7/4x2/3=14/12=7/6 or 1 1/6
19) 3 1/2+2 3/5=7/2+13/5=35/10+26/10=61/10