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3 years ago

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On Tuesday, 4 out of every 10 people who entered a store purchased something. If 8,800 people entered the store on Tuesday, how

many people purchased something?

1 answer:

Gala2k [10]3 years ago

5 0

The correct answer is 3,520 people purchase something. Explanation: 4/10 = .4, so 8,880 x .4 = 3,520

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Subtract and simplify. ( y 2 −7y−5)−(−3 y 2 +3y−4)

Makovka662 [10]

-7y+4 is the answer.................

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3 years ago

A die <br>is tossed find the odds against rolling a number greater than 4

Ulleksa [173]

Answer:

The chance of rolling a number greater than 4 (a 5 and 6) is 2/6 = 1/3 after simplification. The probability it WON'T happen is 1 - 1/3 = 2/3.

The ratio of against to for is 2/3:1/3

You can further simplify this ratio by multiplying each side by 3 and yielding

2:1.

The chance of it not happening is twice as likely as it is to roll a number greater than 4

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2 years ago

________ are numbers equally likely to be chosen from a large population of numbers.

ki77a [65]

A simple random sample are numbers equally likely to be chosen from a large population of numbers.

<h3>What is Population?</h3>

This is defined as the total number of people or variables present in an area over a given period of time.

Numbers are usually chosen at random from a large population for different reasons and are referred to as simple random sample because they have an equal probability of being chosen.

Read more about Sampling here brainly.com/question/24466382

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1 year ago

3. If triangle ABC has the following measurements, find the measure of angle A.

klio [65]

9514 1404 393

Answer:

(a) 42.3°

Step-by-step explanation:

Side 'a' is the shortest of three unequal sides, so angle A will be the smallest angle in the triangle. Its measure can be found from the Law of Cosines.

a² = b² +c² -2bc·cos(A)

cos(A) = (b² +c² -a²)/(2bc) = (21² +25² -17²)/(2·21·25) = 777/1050

A = arccos(777/1050) ≈ 42.3°

The measure of angle A is about 42.3°.

_____

<u><em>Additional comment</em></u>

The smallest angle in a triangle can never be greater than 60°. This lets you eliminate choices that exceed that value.

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2 years ago

What is the area of this polygon?<br>

Cerrena [4.2K]

Answer:

<h2><em>3</em><em>9</em><em> </em><em>units</em></h2>

<em>Solution,</em>

<em>Total </em><em>area=</em><em>Area </em><em>of </em><em>ABCD+</em><em> </em><em>Area </em><em>of </em><em>triangle </em><em>ADE</em>

<em> $(ab \times bc) + \frac{1}{2} \times ad \times ef \\ = (5 \times 6) + \frac{1}{2} \times 6 \times 3 \\ = 30 + 9 \\ = 39 \: {units}^{2}$ </em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

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3 years ago