Please help! It's very simple mathematics, but I can't afford to get them wrong!
1 answer:
Answer:
16=2n-9 13=5-2n one is negative two times a number increased by seventeen ||I believe||
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Answer: x^2
Step-by-step explanation: x times x is x^2
Answer:
4x - 12 = 28
To isolate 4x, we add 12 to both sides:
4x - 12 + 12 = 28 + 12
so
4x = 40
Now we divide 4 from both sides:
x = 40 / 4
so x = 10
Answer:
the answer is 67.5
Step-by-step explanation:
look at the photo
Answer:
Step-by-step explanation:
d = 3/2
a₂₀ = a₁+19d
35/2 = a₁ + 19×3/2
a₁ = 35/2 - 19×3/2 = -11
a₁₅ = a₁+14d = -11 + 14×3/2 = 10
Answer:
x= - 9/28 ± √60/7
Step-by-step explanation:
