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Andreyy89
3 years ago
13

Last year, Theodora estimated that she would sell 96 bracelets. But at the end of the year, she had 16 bracelets left over. Whic

h explains how Theodora can find the percent error of her estimate?
Mathematics
2 answers:
Likurg_2 [28]3 years ago
8 0
%error=100(estimated-actual)/actual

%error=100(96-(96-16))/(96-16)

%error=100(16/80)

%error=1600/80

%error=20%

She overestimated how many bracelets she would sell by 20%
padilas [110]3 years ago
6 0

Answer: The correct answer is A :)

A.) First, find that the exact value is '. The error is 16. The absolute error is 16. Set up the ratio with the absolute error: '. Divide and then multiply by 100 to find the percent error: '.

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Need help with this problem asap
GarryVolchara [31]

Answer:

plug in the day to the equation:

November 1st is day 305, so November 24th would be day 328

y = 116.65 sin(0.02(328) +1.89) + 731.71

= 116.65 sin(8.45) + 731.71

= 828.247 minutes of daylight

≈ 13.8 hours or 13:48 (because .8 of an hour is ≈ 48 minutes)

8 0
3 years ago
A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 7 meters. If concrete costs $94 per c
ikadub [295]

Answer:

C = $33,057.92

The cost of the pillar is $33,057.92

Step-by-step explanation:

Given;

Radius of the concrete r = 4 m

Height h = 7 m

Cost per volume R = $94 per cubic meter

π = 3.14

The volume of the cylinder shape concrete is;

V = πr^2 h

Substituting the given values;

V = 3.14×4^2 × 7

V = 351.68 m^3

The cost of the pillar is C;

C = Volume × cost per volume

C = V × R

C = 351.68 m^3 × $94 per cubic meter

C = $33,057.92

The cost of the pillar is $33,057.92

3 0
3 years ago
John is going to the store. His house is located 3 miles south and 4 miles east from the store, as shown below. What is the shor
juin [17]

Answer:

5 miles

Step-by-step explanation:

It is a right triangle, with 3 miles down, and 4 miles to the right

the shortest distance would be and southeast line.

Using the Pythagorean theorem, you get:

3^2 + 4^2 = x^2

9 + 16 = x^2

25 = x^2

x = 5

3 0
3 years ago
Hi- I need help please to get my HS diploma...did not graduate :(
Karo-lina-s [1.5K]

Answer:

B

Step-by-step explanation:

first for the easy one : the curve line is dotted, if the line points are NOT part of the solution. and it is solid, if the points are included.

you know what the curve line indicates ? it indicates the points for which there is equality.

so, if there is a ">=" or "<=" relation, then that includes equality, and the curve is solid.

if there is only a true inequality ("<", ">"), then the curve is dotted, as the equality is not included.

so, I how this is now really clear.

in our case here (I suspect it really looks like this)

y + 4x <= x² + 2

we have a "<=" sign, so, the curve is ..., well ? ... well ? ...

well ? ... well ? ... solid !

and we still treat inequalities as much as possible as regular equalities.

so,

y <= x² - 4x + 2 (after subtracting 4x from both sides).

and now you see it, right ?

all y values that are smaller or equal to the quadratic expression.

SMALLER ! so, BELOW the curve (as the smaller y values are represented by the lower part of the y-axis).

4 0
2 years ago
What is the area of a rectangle with width 25 inches and length 35 inches? 1/5 in² 6/25 in² 6/10 in² 2 in²
zhenek [66]
By looking at ur answer choices, I am assuming the width is 2/5 inches and the length is 3/5 inches.

A = L * W
A = 3/5 * 2/5
A = 6/25 in^2 <==
8 0
3 years ago
Read 2 more answers
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