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Gwar [14]
2 years ago
9

Given two complementary angles, 2x and (x+3). Find the value of x.

Mathematics
1 answer:
Gnom [1K]2 years ago
7 0

Answer:

29

Step-by-step explanation:

Assuming the angle measurements are in degrees, the two given expressions for the angle measures add to 90.

2x+(x+3)=90

3x+3=90

3x=87

x=29

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If an independent-measures design is being used to compare two treatment conditions, then how many different groups of participa
Serhud [2]

Answer:

2 groups and 1 score for each participant

Step-by-step explanation:

An independent measures design is a defined as a research method whereby multiple experimental groups are examined and the participants will only be in one group. Now, each participant will only be affected by one condition of the independent variable during the experiment.

In the question given, we want to use the method I just described to compare two treatment conditions.

This means that there will be two groups and each participant in both groups will be assigned one score.

7 0
3 years ago
Five boxes of crackers cost $9.at this rate how much do 20 boxes cost
just olya [345]

Find how much 1 box costs by dividing.

9 ÷ 5 = 1.80

Now, multiply 1.80 by 20.

1.80 × 20 = 36

<h2>Answer:</h2>

<u>20 boxes of cookies costs </u><u>$36</u><u>.</u>

5 0
3 years ago
Read 2 more answers
How many thirds in 10?
n200080 [17]
Its 30 . hope this helps u 
5 0
3 years ago
What is the circumference of the circle that circumscribes a triangle with side lengths 3, 4, and 5?
djyliett [7]

Answer:

  5π, about 15.708 units

Step-by-step explanation:

A 3-4-5 triangle is a right triangle. When a circle circumscribes a right triangle, the hypotenuse is the diameter of the circle. The circumference of a circle is given by ...

  C = πd

For a diameter of 5 units, the circumference is ...

  C = π(5) = 5π = 15.708 . . . units

_____

<em>Additional comment</em>

The (3, 4, 5) triple is one of the first Pythagorean triples you run across. It is the smallest integer triple, and the only primitive triple with values in an arithmetic sequence. You can show this is a Pythagorean triple by ...

 3² + 4² = 9 +16 = 25 = 5²

That is, these numbers satisfy the Pythagorean theorem relation for sides of a right triangle.

6 0
3 years ago
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schepotkina [342]
Do 17 ounces minus 5.25 ounces and you'll get your answer
6 0
3 years ago
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