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MariettaO [177]
3 years ago
5

Solve by inspection: X+4=15

Mathematics
2 answers:
amid [387]3 years ago
7 0

x + 4 = 15

- 4        -4

x = 11

You would subtract 4 because you need to isolate the x to get the value of x. You would subtract it to both sides because whatever you do on one side, you have to do it to the other side.

Snowcat [4.5K]3 years ago
7 0

Explanation:

x+4=15

subtract by 4 both sides of an equation.

x+4-4=15-4

then simplify.

15-4=11

<u><em>x=11 is the final answer.</em></u>

Hope this helps!

Thanks!

Have a great day!

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Answer:

Eric will catch up with Jan at 3 o-clock.

Idk I really tried sorry if its wrong lol

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3 years ago
P x 3,700=4,070<br> There was a % percent increase in the number of visitors.
mart [117]

There was 110%  percent increase in the number of visitors.

Percent:

Basically, percentage refers the number or ratio that can be expressed as a fraction of 100.

Given,

p x 3,700=4,070

There was a % percent increase in the number of visitors.

Here we need to find the increase in the percentage.

While we looking into the given question we have identified that,

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And the new population  = 4070

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When we convert this into percent then we get 110% as increase.

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6 0
1 year ago
You have a wire that is 38 cm long. you wish to cut it into two pieces. one piece will be bent into the shape of a square. the o
erica [24]
Circumference + perimeter =38
x = circumference of circle
find r in terms of x
2\pir=x
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Area=\pir^2
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A=\pi(\frac{x}{2 \pi })^2
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(38-x) is perimeter
then 
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6 0
3 years ago
The answer is down below please help meeee
monitta

Answer:

TheaterMania, basically you are getting more popcorn for $1, thats how did it.

7 0
2 years ago
Read 2 more answers
(csc x - 1) (csc x + 1)
victus00 [196]
<h2>Explanation:</h2>

Here we have the following expression:

(csc x - 1) (csc x + 1)

So we need to extend this. Remember that the difference of squares tells us:

(a-b)(a+b)=a^2-b^2

So here:

a=cscx \\ \\ b=1

Thus:

(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}

4 0
3 years ago
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