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bogdanovich [222]
3 years ago
5

Jocelyn estimates that a piece of wood measures 5.5cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn’s e

stimate?
Mathematics
1 answer:
Grace [21]3 years ago
4 0

Answer:

2.14% error

Step-by-step explanation:

Use the percent error formula:

| (observed - expected) / expected | x 100

Plug in the observed and expected values:

| (observed - expected) / expected | x 100

| (5.5 - 5.62) / 5.62 | x 100

Calculate:

= 2.14% error

So, the percent error of Jocelyn's estimate is 2.14%

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An angle whose measure is –302° is in standard position. In which quadrant does the terminal side of the angle fall?
juin [17]

Answer: Quadrant 1 (northeast quadrant)

=================================================

Explanation:

Add on 360 degrees to do a full rotation

-302+360 = 58

So angles -302 degrees and 58 degrees are pointing in the same direction. These angles are in quadrant 1, which is the northeast quadrant

Note: because the angles -302 and 58 point in the same direction, we consider these angles to be coterminal.

3 0
3 years ago
A room has an area of 121 ft squared for carpeting is only sold in meters squared how much carpeting is needed to carpet the roo
Naya [18.7K]
We know that

1 ft-----------> 0.3048 m
then
1 ft²---------> (0.3048)²------> 0.092903 m²
so
121 ft²----------> 121*0.092903----------> 11.24 m²

the answer is
11.24 m²

6 0
3 years ago
To test μ for an x distribution that is mound-shaped using sample size n ≥ 30, how do you decide whether to use the normal or st
Luden [163]
Answer:
Use the normal distribution if the population standard deviation is known.
Use the student's t distribution when the population standard deviation is unknown.

Explanation:
A mound-shaped distribution refers to the normal distribution.
A good sample size for testing against the normal distribution should be
n >= 30.
The condition for the sample size is satisfied.
However, we are not given the population standard deviation, therefore it is assumed to be unknown.
Therefore the student's t distribution should be used. 
6 0
3 years ago
P:-3x + 8x - 5x = x<br><br> q: (3x)(5y) = 15xy<br><br> Which of the following statements is false?
Varvara68 [4.7K]

Answer: Statement p is false.

Step-by-step explanation:

In both cases, we need to isolate the variables:

p: -3*x + 8*x - 5*x = x

   (-3*x - 5*x) + 8*x = x

    -8x + 8*x = x

        0 = x

This will be true only for one value of x, so this is not always true, which means that the statement is false.

q: (3*x)*(5*y) = 15*x*y

let's solve the left side:

  3*x*5*y = 15*x*y

  (3*5)*(x*y) = 15*x*y

   15*x*y = 15*x*y

This is true for every value of x and y, then this statement is true.

5 0
3 years ago
2) which of these is a one-step equation?
Lady_Fox [76]
I think it would be B ?? Because it’s the shortest one ‍♀️
4 0
3 years ago
Read 2 more answers
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