Answer: 18/80=0.225
Step-by-step explanation:
Answer:
i think is 75
Step-by-step explanation:
Answer:
3)5x-4y=-3
6x+4y=14
Step-by-step explanation:
The system of equations is given
5x-4y=-3
3x+2y=7
Multiplying both sides of the lower equation by 2, we get
6x + 4y = 14
That means your answer 3)
Answer:
x = 8
Step-by-step explanation:
Step 1: Write equation
2(x + 5) = 26
Step 2: Solve for <em>x</em>
<u>Distribute 2:</u> 2x + 10 = 26
<u>Subtract 10 on both sides:</u> 2x = 16
<u>Divide both sides by 2:</u> x = 8
Answer: x = 13; y = 13√2
because this is a right triangle, we have:
tan 45° = x/13
⇔ x/13 = 1
=> x = 13
we also have:
cos 45° = 13/y
⇔ 13/y = 1/√2
⇔ y = 13√2
Step-by-step explanation: