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3 years ago

The least common denominator of the fractions: 7/8 and 1/4.

Mathematics

2 answers:

Travka [436]3 years ago

7 0

Answer:

Step-by-step explanation:

1/4=2/8

Alchen [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Since you can divide 4 into 8 evenly, it's the larger of the two - the lowest common denominator is 8.

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Give an example in which you need to find the perimeter of a real-life object.

erik [133]

Answer:

you are building a fence for your dog and it needs to be a square. One side is 20 ft long. What is the perimeter of the fenced area?

Step-by-step explanation:

The answer would be 80 ft long since it is a square and all sides are equal so you would just add 20 ft 4 times. hope this helped :)

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3 years ago

1. A number is drawn from the set {1,2,3,4,...,20} Find the probability that

Aleks [24]

Answer:

1.A. The number chosen is odd number

2.D. Drawing a number card

3.F. The ball is not white

Step-by-step explanation:

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6 0

3 years ago

Read 2 more answers

What number is 3/10 of 20

mixer [17]

Answer:

Step-by-step explanation:

3/10 of 20

NOTE: of in mathematics means multiplication

3/10 of 20 = 3/10 * 20

Multiply the numerators = 3*20 =60 divided by the denominator (10)

=60/10 = 6

I hope this was helpful, Please mark as brainliest

6 0

3 years ago

Read 2 more answers

A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that

Delvig [45]

Answer: The size of sample of 193 is needed.

Step-by-step explanation:

Since we have given that

Margin of error = 6%

At 90% confidence level, z = 1.645

Let p = 0.5

and q = 0.5

( because it is the most conservative estimation).

So, using formula, we get :

$e=z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\0.06= 1.645\times \sqrt{\dfrac{0.5\times 0.5}{n}}\\\\\dfrac{0.06}{1.645}=\sqrt{\dfrac{0.25}{n}}\\\\(0.036)^2=\dfrac{0.25}{n}\\\\n=\dfrac{0.25}{0.036^2}\\\\n=192.9\\\\n=193$

Hence, the size of sample of 193 is needed.

8 0

3 years ago

What is the value of x in this triangle? Enter your answer as a decimal in the box. Round only your final answer to the nearest

kow [346]

Answer:

14.04°

Step-by-step explanation:

In this right triangle, we're seeking the measurement of an angle at the base of the triangle and we have the measurements of two of the sides (none are the hypotenuse) : the opposite one of the angle and the adjacent side.

The relationship between the two sides we have the measurement and the angle we are looking for is the tangent:

$tan(\alpha) = \frac{a}{b} = \frac{5}{20} = 0.25$

To find the angle we do an arctan on 0.25 and we get an angle of 14.04 degrees.

4 0

4 years ago