How to solve each system of linear equations ?
Can you help me with #7 & #8
Answers
y = 2x + 7
y = y
4x + 3 = 2x + 7
4x - 2x = 7 - 3
2x = 4
x = 4/2
x = 2
To check:
y = 4x + 3 y = 2x + 7
y = 4(2) + 3 y = 2(2) + 7
y = 8 + 3 y = 4 + 7
y = 11 y = 11
8) y = -3x + 6
y = x + 2
y = y
-3x + 6 = x + 2
-3x - x = 2 - 6
-4x = -4
x = -4/-4
x = 1
y = -3x + 6 y = x + 2
y = -3(1) + 6 y = 1 + 2
y = -3 + 6 y = 3
y = 3
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0 only
B.
12 and –12
C.
–12 only
D.
12 only
Answers
Answers
realheight:shadow=15:20
slide shadow=16
therefor find realheightslide
15:20=realheightslide:16
simplify
3:4=realheight:16
fractionfy
3/4=realheight/16
multiply both sides by 16
48/4=realheight
12=realheight
aswer is 12 feet
Answers
sin Y= ___ in fraction form if you can explain it that would be very helpful
Answers
Check the picture below.
250
B.
125
C.
80
D.
40
Answers
Answer: C. 80
Step-by-step explanation: I just took the test