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Contact [7]
4 years ago
8

I need help with this question please :(

Mathematics
1 answer:
horrorfan [7]4 years ago
3 0

Answer:

C

Step-by-step explanation:

(2^7 \cdot 3^{-5}\cdot 9)^4

Use the Power of a Product Property, where:

(ab)^n=a^nb^n

Therefore:

(2^7 \cdot 3^{-5}\cdot 9)^4\\=(2^7)^4\cdot(3^{-5})^4\cdot(9)^4\\=2^{28}\cdot3^{-20}\cdot9^4

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The actual distance between two cities is 1250 mi. the shortest distance between the two cities on a map is 10 in. what is the s
Varvara68 [4.7K]
So the scale is usually ine inch of the map to actual distance right?we
So we need to calculate how much one inch is.
So we are told 10 inches is 1250 miles right?
So for one inch we need to divide the number of inches for the equivalent distance.
In this case it is 10 and 1250 miles.
So dividing 1250 by 10 gives you 125 right?
That means for every one inch on the map it is 125 miles right.
This can be written like 1:125.
This is how they write scales in the map.
It means for one unit in the map it is 125 units in real life
6 0
3 years ago
What is the answer X=-2(6+4)
Digiron [165]

Answer:

X = -20

Step-by-step explanation:

X = -2(6+4)

            ^ add 6 and 4 together first because they are in parentheses

-2(10)

   ^ this parenthesis means you want to multiply -2 and 10

because 2 x 10 = 20

that must mean -2 x 10 = -20

therefore, the value of X is -20

X= -20

3 0
3 years ago
How do i simplify 4 square root of 256a^2b^4
KiRa [710]
256 is the perfect square of 16 it would be 66 square root a2b


3 0
3 years ago
after spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration
Montano1993 [528]
40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!
6 0
3 years ago
10 mm<br>4 mm<br>u What is the volume of the cone to the nearest whole number?<br>​
BaLLatris [955]

Answer:

V=167.5 cubic mm

Step-by-step explanation:

Volume of the Cone is given with the formula

V=\frac{1}{3} \pi r^2h

though we are not specified what is radius and which one is the height , we are assuming that ,

Height = 10 mm

Radius = 4 mm

Substituting these values in the formula we get

V=\frac{1}{3} \pi 4^2 \times 10

V=\frac{1}{3} \pi 160

V=\frac{160 \times 3.14}{3}

V=\frac{160 \times 3.14}{3}

V=\frac{502.40}{3}

V=167.5

3 0
4 years ago
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