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2 years ago

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Nancy is planning a birthday party for her coworker, Sarah. She realizes that there are 10 medical assistants and 8 nurse assist

ants attending the office party. Nancy decides to serve sandwiches to the medical assistants and pizza to the nurse assistants.

1 answer:

Masja [62]2 years ago

7 0

What’s the question to this?

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Are rational numbers a subset of real numbers?

valentinak56 [21]

Answer: Yep! This is true.

Explanation: Real number subsets also include irrational numbers, whole numbers, integers, and natural numbers.

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2 years ago

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Find the length of side AB<br> Give answer to 3 significant figures

Rina8888 [55]

Answer:

AB = 8.857 cm

Step-by-step explanation:

Here, we are given a <em>right angle</em> $\triangle ABC$ in which we have the following things:

$\angle A = 90 ^\circ\\\angle C = 41 ^\circ\\\text{Side }BC = 13.5 cm$

Side <em>BC </em>is the hypotenuse here.

We have to find the side <em>AB</em>.

Trigonometric functions can be helpful to find the value of Side AB here.

Calculating $\angle B$ :

Sum of all the angles in $\triangle ABC$ is $180^\circ$ .

$\Rightarrow \angle A + \angle B + \angle C = 180^\circ\\\Rightarrow 90^\circ + \angle B + 41^\circ = 180^\circ\\\Rightarrow \angle B = 49^\circ$

We know that <em>cosine </em>of an angle is:

$cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\Rightarrow cos B = \dfrac{AB}{BC}\\\Rightarrow cos 49^\circ = \dfrac{AB}{13.5}\\\Rightarrow AB = 13.5 \times 0.656\\\Rightarrow AB = 8.857 cm$

So, side AB = 8.857 cm .

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2 years ago

Sara found 58 seashells on the beach,she gave Dan some of her seashells.She has 13 seashells left.How many seashells did she giv

Salsk061 [2.6K]

58-13 that she has left = 45
She gave 45 to Dan

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3 years ago

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7.5x10^5-2.9x10^4=? having trouble

alexira [117]

721,000 should be the answer. took me a little while though haha

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2 years ago

For every white car there is 3 black cars,what is the percentage of white cars on the road?

N76 [4]

Answer:

25%

Step-by-step explanation:

1 white car + 3 black cars

4 cars in total

1 out of 4

1/4 = 0.25

25%

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2 years ago