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lara31 [8.8K]
4 years ago
12

Expressions that are equivalent to 2 1/2

Mathematics
1 answer:
Drupady [299]4 years ago
5 0
5/2;
2+1/2;
2.5;
1+1 1/2;
1+1/2+1/2+1/2
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Use the unit circle to find tan 60°
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Answer:3

Step-by-step explanation:

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3 years ago
the length of a side of a square is 10x+4 units. If the perimeter is 96 units. What is the area of the square?​
dmitriy555 [2]

Answer:

576 Units

Step-by-step explanation:

The way your teacher wants you to do it:

1. We know that multiplying a length by four gives us the perimeter of a square.

1a. Thus, we multiply the given length by four. 4(10x+4)=40x+16

1b. We know the perimeter is 96. So: 40x+16=96

2. Solving for x, we get x=2

3. Plugging our solved x into the given length  (10x+4), we see that the length of a side of the square is 10*2+4=24.

4. We know that the area of a square can be found by squaring the side of a square.

4a. 24*24=576.

5. The area is 576 units.

--------------------------------------------------------------

Easier Solution:

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2. We set L to length.

2a. 4L=96

2b. L=24

3. We know that the length square is area.

4. 24*24=576.

4 0
3 years ago
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taurus [48]

Answer:

Correct option: (a)

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A confidence interval is an interval estimate of the parameter value.

A (1 - <em>α</em>)% confidence interval implies that the confidence interval has a (1 - <em>α</em>)% probability of consisting the true parameter value.

OR

If 100 such confidence intervals are made then (1 - <em>α</em>) of these intervals would consist the true parameter value.

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This confidence interval implies that true mean annual phone charge of all Vopstra customers is contained in the interval ($405, $535) with 0.92 probability.

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6 0
4 years ago
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Anastasy [175]

Answer:

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Step-by-step explanation:

We can use a ratio to solve

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Using cross products

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Divide each side by 50

3*6750/50 = x

405

7 0
3 years ago
Read 2 more answers
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