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masya89 [10]
3 years ago
8

Describe how (2^3) (2^-4) can be simplified.

Mathematics
1 answer:
elena-s [515]3 years ago
8 0

Answer:

1/2

Step-by-step explanation:

Using exponent rules, 2^3 * 2^-4 = 2^(3-4) = 2^-1 = 1/2

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Can someone at least help me with this one... the bottom empty one...
Varvara68 [4.7K]
157 is equal to half of the circumference...

C=2πr so C/2 is:

πr=157

r=157/π ft

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6 0
3 years ago
In ΔEFG, the measure of ∠G=90°, EF = 38 feet, and FG = 30 feet. Find the measure of ∠F to the nearest degree.
Mamont248 [21]

Answer:

∠F = 42° to the nearest degree

Step-by-step explanation:

In this question, we are asked to calculate the value of the angle.

Kindly note that since one of the angles we are dealing with in the triangle is 90°, this means that the triangle is a right-angled triangle

Please check attachment for the diagrammatic representation of the triangle

From the diagram, we can identify that the EF is the hypotenuse and the length FG is the adjacent. Thus , the appropriate trigonometric identity to use is the cosine

mathematically;

Cosine of an angle = length of adjacent/length of hypotenuse

Cos F = \frac{30}{38}\\Cos F =  0.7895\\F = Cos^{-1} 0.7895\\

F = 42.07

∠F = 42° to the nearest degree

4 0
3 years ago
Read 2 more answers
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Dmitry_Shevchenko [17]

Answer:

D

Step-by-step explanation:

1%

5 0
3 years ago
If a property sold for $350,000,what total commission would the seller pay at 6%?
ipn [44]
350000/100=x/6
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8 0
3 years ago
What is the equivalent expression for this it’s due in 1 day! (2+b)•5+4(3b-1)
lana66690 [7]

Answer:

18b + 6

Step-by-step explanation:

Perform the indicated multiplication first:

(2+b)•5+4(3b-1)  =>  10 + 5b + 12b - 4  =>  18b + 6

8 0
3 years ago
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