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dsp73
3 years ago
15

Solve and round to the nearest hundredth please!!!

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

x = 0.96

Step-by-step explanation:

7 \times 16^{8x - 8} = 3

(2^4)^8(x - 1) = \dfrac{3}{7}

2^{32(x - 1)} = \dfrac{3}{7}

\log 2^{32(x - 1)} = \log \dfrac{3}{7}

32(x - 1)\log 2 = \log 3 - \log 7

(x - 1) = \dfrac{\log 3 - \log 7}{32}

(x - 1) = \dfrac{\log 3 - \log 7}{32\log 2}

x = \dfrac{\log 3 - \log 7}{32\log 2} + 1

x = 0.961800237...

Answer: x = 0.96

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Need help fast!!! Algebra question!!!
ddd [48]
AVERAGE between 90 and 100%
means not including 90 and 100% but not including 90 or 100%


average=(sum of values in set)/(how many values in the set)

so
4 exams, so there are 4 values
average=(sum)/4

the sum is the known+unknwon
sum=76+99+86+x

so
90<span><</span>average and average <span><</span>100
or
90<span><</span>average<span><</span>100


lets say average=a

a=sum/number
a=(76+99+86+x)/4

90<(76+99+86+x)/4<100
90<(76+99+86+x)/4 and (76+99+86+x)/4<100

solve each for x and find intersection

90<span><</span>(76+99+86+x)/4
times 4 both sides
360<span><</span>261+x
minus 261 both sides
99<span><</span>x


(76+99+86+x)/4<u><</u>100
times 4 both sides
261+x<u><</u>400
minus 261 both sides
x<u><</u>139


so

99<u><</u>x<u><</u>139
since max score is 100
99<u><</u>x<u><</u>100

interval notaion is
[99,100]


answer is 2nd one


3 0
3 years ago
Read 2 more answers
Please help.<br> Algebra.
mr Goodwill [35]

Answer:  m= -1/2

Step-by-step explanation:

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4 0
3 years ago
Use the distributive property to write 3y - y as a product. Then simplify.
kvasek [131]
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3 years ago
A sphere has a volume of 288 Pi in^3. Find the surface area of the sphere
lorasvet [3.4K]

Answer:

Step-by-step explanation:

The formula for determining the volume of a sphere is expressed as

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The volume of the given sphere is expressed as 288π inches³. It means that

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4r³/3 = 288

4r³ = 3 × 288 = 864

r³ = 864/4 = 216

Taking cube root of both sides, it becomes

r = 6

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Area = 4πr²

π = 3.14

Therefore,

Surface area = 4 × 3.14 × 6² = 452.16 inches²

7 0
3 years ago
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