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Orlov [11]
3 years ago
8

How to find function of x

Mathematics
1 answer:
AfilCa [17]3 years ago
3 0

Answer:

By using function notation

This question os incomplete

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A good-quality measuring tape can be off by 0.49 cm over a distance of 23 m. What is the percent uncertainty?33% Part (a) If 44
V125BC [204]

Step-by-step explanation:

First:

(Error/Total )x 100%

(0.49/23) x100%= 2.13%

Second:

(Absolute uncertainty/mean) x100%

(3/44)x100%= 6.81%

8 0
3 years ago
The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the
Rom4ik [11]
M/s=30/9 =10/3

so, 3m=10s
8 0
3 years ago
Read 2 more answers
The zookeeper has 9 cups of frog food. His frogs eat one half cup of frog each day. How many days can he feed the frogs before t
lubasha [3.4K]

Answer:

18 days

Step-by-step explanation:

It depends on the number of frogs, but if there is one frog then it would be...

9÷.5= 18 (18 half cups in 9 cups)

Therefore, one frog can eat for 18 days because it is only eating .5 a day.

7 0
2 years ago
Read 2 more answers
A farmer has chickens and cows. You ask the farmer how many chickens he has, and how many cows he has. The farmer has 28 healthy
crimeas [40]
Set the number of chickens as x and number of cows as <span>y
</span>so the farmer has total 28 animals
so x+y=28 
you know that since the animals are healthy
chickens will have 2 legs    and
cows will have 4 legs
the total number of legs are 64
so 2x+4y=64
since you want to find the number of cows 
so from the first equation <span>x+y=28
</span>we will get another equation <span>x=28-y
</span>then plug into <span>2x+4y=64
2(28-y)+4y=64
56-2y+4y=64
56+2y=64
-56      -56
2y=8
y=4
</span>

3 0
3 years ago
If z = -1.3, mu=80, sigma=30 What is the actual data value? Round to 2 decimal places.
Andre45 [30]

Step-by-step explanation: This simple confidence interval calculator uses a Z statistic and sample mean (M) to generate an interval estimate of a population mean (μ).

Note: You should only use this calculator if (a) your sample size is 30 or greater; and/or (b) you know the population standard deviation (σ), and use this instead of your sample's standard deviation (an unusual situation). If your data does not meet these requirements, consider using the t statistic to generate a confidence interval.

where:

M = sample mean

Z = Z statistic determined by confidence level

sM = standard error = √(s2/n)

As you can see, to perform this calculation you need to know your sample mean, the number of items in your sample, and your sample's standard deviation (or population's standard deviation if your sample size is smaller than 30). (If you need to calculate mean and standard deviation from a set of raw scores, you can do so using our descriptive statistics tools.)

6 0
2 years ago
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