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CaHeK987 [17]
3 years ago
11

It is exponent laws. My teacher said x is 3 but I don't get why

Mathematics
1 answer:
STALIN [3.7K]3 years ago
8 0
Exponent laws

one of them goes liek this

if you have bⁿ=bᵃ where b=b, then n=a

so, try to match bases

2ˣ⁺⁴=128
128=2⁷

we have
2ˣ⁺⁴=2⁷
2=2
therefor
x+4=7
now subtract 4 from both sides
x=3
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If a line goes through the point (8,9) and has a slope of negative 3/4 what is the starting value?
scZoUnD [109]

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umka2103 [35]

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8 0
3 years ago
Solve the system of equations.<br> y= 3x<br> y= x2-10
svetoff [14.1K]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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Sveta_85 [38]
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DE≈6.3

8 0
3 years ago
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