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love history [14]

3 years ago

6

A baker estimated that she would sell 46 cupcakes last weekend. She actually sold 87 cupcakes. What was the baker's percent erro

r rounded to the nearest tenth of a percent? A. 47.1% B. 89% C. 47% D. 89.1%

1 answer:

ki77a [65]3 years ago

4 0

Hello,

Here is your answer:

Your answer is 47%

87 of 46=40.2

If you need anymore help just ask me!

Hope this helps!

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liberstina [14]

Answer:

1. C = $100 = .25(m)

2. C = $150

3. 800 = m

Step-by-step explanation:

1. C = $100 (flat fee rate) + .25m

2. c = $100 + .25(200 miles)

↓

c = $100 + 50

↓

c = 150

3. 300 = 100 + .25(m)

-100 -100 (subtract on both sides)

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200 = .25(m)

------------------- (divide by .25 to get m by itself)

.25

Therefore being 800 = m

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3 years ago

Prove that 1/sin^2A -1/tan^2A= 1

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Answer:

Step-by-step explanation:

$LHS =\dfrac{1}{Sin^{2} \ A }-\dfrac{1}{Tan^{2} \ A }\\\\\\ = \dfrac{1}{sin^{2} \ A}- \dfrac{1}{\dfrac{Sin^{2} \ A}{Cos^{2} \ A}}\\\\\\= \dfrac{1}{sin^{2} \ A } - \dfrac{Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{1-Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{Sin^{2} \ A}{Sin^{2} \ A}\\\\\\= 1 = \ RHS$

Hint: 1 - Cos² A = Sin² A

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2 years ago

What do you know to be true about the values of a and b?

gizmo_the_mogwai [7]

Answer:

Can't be determined

Step-by-step explanation:

You just don't have enough info!

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3 years ago

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A. 35% decrease yearly
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3 years ago

A square field has an area of 144 metres squared. If Andrea walked 10 times around this field, what distance did she cover?

Novosadov [1.4K]

Answer:

480m

Step-by-step explanation:

First we have to find the perimeter of the field.

We know that the area is 144m and that the field is a square.

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So, one side of the field is 12m; now we just find the perimeter which is easy since its a square. 12*4=48m

If Andrea walked around it 10 times, then we just multiply the perimeter by 10

48*10=480m

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3 years ago