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bogdanovich [222]
2 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]2 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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True or false? f (x) = 2 · (1/5)^x represents an exponential function growth.
nekit [7.7K]

Hi there!

\large\boxed{\text{False.}}

f(x) = 2(1/5)ˣ

Recall the form of an exponential function:

f(x) = a(b)ˣ where:

a = initial value

b = rate of decay/growth

If b > 1, the function is undergoing exponential growth. If b < 1, then the function is undergoing exponential decay.

1/5 < 1, so the function is undergoing exponential decay, not growth.

7 0
3 years ago
the cost of renting a scooter is represented by 3j+5. Write and simplify an expression that represents the cost of renting 6 sco
wariber [46]

Simplified expression that represents the cost of renting 6 scooters is 18 j +30

<u>Step-by-step explanation:</u>

Given data:

The cost of renting of a scooter is represented by 3j +5

So, from that, we can say in general,

The cost of renting of n scooters is represented by  

                                 n \times(3 j+5)

But according to given, the value of n is 6. i.e. to find the cost for six number of scooters. We can calculate now as follows

So, the cost of renting of a scooter is represented by  

                                 6 \times(3 j+5)=18 j+30

3 0
3 years ago
5x-10x+ 2(3y-2)= 10y-5x + 4
Bas_tet [7]
5x-10x+ 2(3y-2)= 10y-5x + 4

Multiply 2 x 3y and by -2

5x-10x+6y-4=10y-5x+4

You get 6y-4

-5x+6y-4=10y-5x+4

Subtract 10x from 5x to get -5x

6y-4=10y+4

Add 5x to the -5x

6y=10y+8

Add 4 to the other side to get 8

-4y=8

Subtract 6y-10y to get -4y

-4y/-4=8/-4

Divide -4y and 8 by -4 to get y by itself and -2

Y=-2

Answer

Hope this helps
6 0
3 years ago
What fraction of 45 is 20
iogann1982 [59]

Answer:

2.25×20=45

..............

8 0
3 years ago
The table shows certain values of a cubic function
Nadusha1986 [10]

Considering the given table, we have that:

  • The function has a relative maximum when x is near 3.
  • As x approaches positive infinity, the value of the function approaches negative infinity.

<h3>When a function has a relative maximum?</h3>

A function has a relative maximum when it changes from increasing to decreasing.

Looking at the given table, it happens when x is near 3.

Also, looking at the table, for x > 3 the function is decreasing, hence as x approaches positive infinity, the value of the function approaches negative infinity.

More can be learned about functions at brainly.com/question/24737967

#SPJ1

3 0
2 years ago
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