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Vikki [24]
3 years ago
12

HELP ME PLEASE!!!!!!!!!!4(a+2)=8+4a

Mathematics
2 answers:
user100 [1]3 years ago
4 0
All real numbers are correct! Hope that helps.
Natasha2012 [34]3 years ago
4 0

Answer:

a can be anything. There are infinite solutions.

Step-by-step explanation:

4(a+2)=8+4a

Expand:

4a+4\times\:2=8+4a

4a+8=8+4a

Subtract 8 from both sides:

4a+8-8=8+4a-8

4a=4a

Subtract 4a from both sides:

4a-4a=4a-4a

0=0

Since both sides are equal, a has infinite solutions as no matter what value it is, it will not affect the end result of 0=0 which is true.

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The length of the top of a computer desk is 2 1/4 feet longer than it’s width. If it’s width measures y feet, express its length
Lera25 [3.4K]

Answer:

The length as an algebraic expression in y is  y   + (2\frac{1}{4} )  ft

Step-by-step explanation:

The measure of the width of the computer desk = y feet

The measure of the length of the desk = width + 2  1/4 ft

⇒Measure of Length = y   + (2\frac{1}{4} )   ft

Hence, the length as an algebraic expression in y is  y   + (2\frac{1}{4} )   ft

5 0
3 years ago
Given sin theta= 6/11 and sec theta < 0, find cos theta and tan theta.
bekas [8.4K]

Answer: option a.

Step-by-step explanation:

By definition, we know that:

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Substitute sin(\theta)=\frac{6}{11} into the first equation, solve for the cosine and simplify. Then, you obtain:

cos(\theta)=\±\sqrt{1-(\frac{6}{11})^2}\\\\cos(\theta)=\±\sqrt{\frac{85}{121}}\\\\ cos(\theta)=\±\frac{\sqrt{85}}{11}

As sec\theta then cos\theta:

cos(\theta)=-\frac{\sqrt{85}}{11}

Now we can find tan\theta:

tan\theta=\frac{\frac{6}{11}}{-\frac{\sqrt{85}}{11}}\\\\tan\theta=-\frac{6\sqrt{85}}{85}

4 0
3 years ago
Read 2 more answers
PLEASEEEE HELPPPP!!!!
Alexeev081 [22]
The answer is 0.91 because it is
3 0
2 years ago
In polar coordinates, the axis determined by theta=0 is called ?
melisa1 [442]

In polar coordinates, the axis determined by theta=0 is called the positive x-axis or horizontal axis.

To add, in mathematics, the polar coordinate<span> system is a two-dimensional </span>coordinate<span> <span>system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction.</span></span>

4 0
3 years ago
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Answer: 60 mph

Step-by-step explanation:

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3 years ago
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