Answer:
the answer is C) 7 and -7
Step-by-step explanation:
2^t =38
take the log of each side
log ( 2^t) = log (38)
the exponent gets multiplies
t log (2) = log (38)
divide by log 2
t = log(38)/log (2)
t≈5.2479
Answer: 6
Step-by-step explanation:
<u>"The sum of twice a number, n, and four is at most sixteen"</u>
<u />
2n + 4 ≤ 16
2n ≤ 12
2n ≤ 12
n ≤ 6
answer:
4.5m²
explanation:
1. <u>find area of the circle</u>
A(circle)=πr²
A=π(2.3²)
A=16.62m²
2. <u>find area of the square</u>
the diameter of a circle is twice its radius. when you multiply 2.3 by two, you get 4.6. since the circle reaches to the sides of the square, the diameter is also the length of a side on the square.
A(square)=s²
A=4.6²
A=21.16m²
3. <u>subtract the two areas</u>
to find the area of the shaded sector, we need to subtract the area of the circle from the area of the square.
A(shaded)=21.16-16.62
A=4.54097487m²
(be sure to round as necessary)
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