4 years ago

Add and round to the correct number of significant digits: 13.8 + 60 A.70

Mathematics

1 answer:

ArbitrLikvidat [17]4 years ago

6 0

The correct answer is C

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Factorise the following expressions 5x^2-25xy

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Answer: 5x ( x - 5y )

Step-by-step explanation:

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3 years ago

A polygon with 12 sides is called a/an a. dodecagon. b. pentagon. c. undecagon.

Pepsi [2]

The answer is A. dodecagon.

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3 years ago

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40pts!! Select the correct answer. Simplify.

stiv31 [10]

Hey!

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Solution:

$=\frac{3x^2y^3}{z^3}$

Cube the coefficients.

$= \frac{27x^2y^3}{z^3}$

Multiply the exponents.

$= \frac{27x^6y^9}{z^9}$

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Answer:

Option D.

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Hope This Helped! Good Luck!

5 0

3 years ago

5% of what number is 85?

Semmy [17]

5% = 0.5

0.5n = 85

Divide by 0.5

0.5n = 85
/0.5 /0.5

n = 170.

The number is 170.

8 0

3 years ago

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. Her friend invested the s

Natali5045456 [20]

The right system of equations to describe the situation would be on the form:

x1 = 8000 + y1*t

and

x2 = 8000 + y2*t

where x1 and x2 represents the total money of Imogene and her friend respectively at the end of t years.

Now for the value of amount earned, y1 and y2:

y1=8000*0.08

y2=2000*√(t-2)

5 0

3 years ago