4 years ago

Which expressions are equivalent to 3x+3(x+y)?

Mathematics

1 answer:

storchak [24]4 years ago

6 0

Answer: 6x+3y

Step-by-step explanation:

3x+3(x+y)= 3x+3x+3y=6x+3y

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How to evaluate the expression 0.3(3-0.5)

scoray [572]

0.3(3 - 0.5)
= 0.3(2.5)
= 0.75

3 0

4 years ago

Evaluate each logarithm. Do not use a calculator. ln ^3 square root e^4

Alona [7]

Answer:

$\large\boxed{\ln\sqrt[3]{e^4}=\dfrac{4}{3}}$

Step-by-step explanation:

$\text{Use}\\\\\sqrt[n]{a^m}=a^\frac{m}{n}\\\\\ln a^n=n\ln a\\\\\ln e=1\\-----------\\\\\ln\sqrt[3]{e^4}=\ln e^\frac{4}{3}=\dfrac{4}{3}\ln e=\dfrac{4}{3}\cdot1=\dfrac{4}{3}$

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3 years ago

At a concession stand, three hot dog(s) and two hamburger(s) cost $8.00; two hot dog(s) and three hamburger(s) cost $8.25. F

qaws [65]

Answer:

$1.5

Step-by-step explanation:

Solve by graphing the system of equations where x = the number of hot dogs and y = the number of hamburgers

> 3x + 2y = 8

> 2x + 3y = 8.25

The solution is (1.5, 1.75)

-- Check attachment for graph

5 0

3 years ago

An Octagon has the radius of 56 and an area of 10,391.9 square millimeters.

solmaris [256]

A.371
b.46
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5 0

4 years ago

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please help me and before you try to answer the height is not 8 in but the volume is 25.12 in if that helps thank you <3

DochEvi [55]

Answer:

25.12 in^3.

Step-by-step explanation:

Volume of the cylinder = 3.14 * r^2 * h

= 3.14 * 2^2 * 8

The volume of the preserve

= 1/4 * 3.14 * 4 * 8

= 25.12 in^3.

3 0

3 years ago

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