Solve the following systems by substitution
1 answer:
Answer:
The answer to your question is below
Step-by-step explanation:
Question 1
x = 5 Equation l
2x + y = 10 Equation ll
- Substitute Equation l in equation ll
2(5) + y = 10
y = 10 - 10
y = 0
- Solution (5, 0)
Question 2
x + 16y = 20 Equation l
x = 4y Equation ll
Substitute equation ll in equation l
4y + 16y = 20
20y = 20
y = 20/20
y = 1
-Find x
x = 4(1)
x = 4
-Solution
(4, 1)
Question 3
2x + 8y = 20 Equation l
x = 2 Equation ll
-Substitute equation ll in equation l
2(2) + 8y = 20
4 + 8y = 20
8y = 20 - 4
8y = 16
y = 16/8
y = 2
- Solution
(2, 2)
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AD is 17 using the Pythagorean Theron
Answer:
12⁽¹⁸⁾
Step-by-step explanation:
The expression is given as ;
12³ × 12⁹× 12⁴× 12² -----same base, add the powers according to law of indices
12⁽³⁺⁹⁺⁴⁺²⁾
12⁽¹⁸⁾
B= -2x+5-2x^2-ax
A= -2x+5-2x^2-b/x
x=0
Answer:
good job I am soooo behind
