3 years ago

Which of the following graphs represents a function?

Mathematics

2 answers:

Reika [66]3 years ago

7 0

Answer:

A does, that is the only one that makes sense :)

Step-by-step explanation:

vladimir1956 [14]3 years ago

3 0

Answer:

first option

Step-by-step explanation:

if x has 2 values of y in a graph then that graph is no function

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Aneli [31]

Answer:

there may be 16 but I am not sure

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3 years ago

Carl went to the store to buy items for his party.He bought two packs for plates for $3.24 and a pack of cups for $5.70. He also

Andre45 [30]

3.24 + 5.70 + 6.17 = 15.11

20.00 - 15.11 = 5.11

He got 5.11$ of change back.

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3 years ago

F(7)=3/x+2-squar root x-3

leonid [27]

Insert x = 7
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= 1/3 - 2
=1/3 - 6/3
= -5/3

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3 years ago

The price of an iphone was reduced from $960 to $840. By what percentage was the price of the iphone reduced?

Taya2010 [7]

Answer:

13.5%

Step-by-step explanation:

I hope this helps

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3 years ago

Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Jus

vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = $\frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397$

$df = 42-1 =41$

t critical for 99% two tailed $= 2.733$

Margin of error $= 2.733*0.9397=2.568$

Confidence interval lower bound = $28.3-2.568=25.732$

Upper bound = $28.3+2.568=30.868$

3 0

3 years ago