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UkoKoshka [18]
3 years ago
15

Simplify each expression using the properties of numbers.Show each step

Mathematics
1 answer:
ki77a [65]3 years ago
5 0
1. is 20x + 16

2. is 27z+56
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Let f(x)= x^2 - 3x + 1 and g(x)= 3x + 7
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Answer:

A

Step-by-step explanation:

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7 0
3 years ago
Prove that: 27^4-9^5+3^9 is divisible by 25<br> PLEASE HELP QUICK!
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Answer:

19,683

Step-by-step explanation:

6 0
3 years ago
The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has
ANTONII [103]

Answer:

The voltage in exponential form would be (\frac{3}{5})^3.

The original voltage in the circuit is \frac{3}{5} of a volt.

Step-by-step explanation:

Let x represent the original voltage.

We have been given that the voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has been reduced 3 times.

The original voltage multiplied by itself for 3 times would be x\cdot x\cdot x=x^3.

Now, we will equate x^3 with 27/125 as:

x^3=\frac{27}{125}

We know that 27 is cube of 3 and 125 is cube of 5, so we can represent our equation as:

x^3=\frac{3^3}{5^3}

x^3=(\frac{3}{5})^3

Therefore, the voltage in exponential form would be (\frac{3}{5})^3

Now, we will take cube root of both sides to find original voltage in the circuit as:

\sqrt[3]{x^3} =\sqrt[3]{(\frac{3}{5})^3}

Using property \sqrt[n]{a^n} =a, we will get:

x =\frac{3}{5}

Therefore, the original voltage in the circuit is \frac{3}{5} of a volt.

6 0
4 years ago
In a scale drawing, the tength of a
yanalaym [24]

Answer:

a) 1/36in.

b) 1/54in

Step-by-step explanation:

a) convert feet to inches:

L = 18ft = 216in

if length in image is 6in then 216in/6in. 36in is Scale.

width of original room = 108in.

check: 216*1/36 = 6

b) L = 18ft = 216in

216in/4in = 54in.

check: 216*1/54 = 4

8 0
2 years ago
Draw the image of RST under the dilation with scale factor 5/3 and center of dilation (2.-2).
Vlad [161]

Answer:


Step-by-step explanation:

R(2,3) T(-3,-2) S(2,-2) here are your points.

4 0
4 years ago
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