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pychu [463]
3 years ago
13

Please help!!!

Mathematics
1 answer:
lisov135 [29]3 years ago
4 0

Answer:

f(0) = 3

.....

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

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Help ASAP!!!<br> Worth 30 points!!!
sladkih [1.3K]

2m+22


I hope this helped!
4 0
3 years ago
Read 2 more answers
A study was conducted to determine whether an expectant mother's cigarette smoking has any effect on the bone mineral content of
svp [43]

Using Hypothesis testing,

a) Two samples are independent.

b)H₀: an expectant mother's cigarette smoking has any not effect on the bone mineral content of her otherwise healthy child.

Hₐ : an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

c) Null hypothesis is accepted.

so, an expectant mother's cigarette smoking has no effect on the bone mineral.

We have given that,

A study which is conducted for check an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

For new-born whose mother's cigarette smoking

sample size , n₁= 77

X-bar, x₁-bar = 0.098 g/cm

standard deviations, s₁ = 0.026 g/cm

For new-born whose mother did not cigarette smoking

sample size , n₂ = 161

standard deviations, s₂ = 0.025 g/cm.

mean (X-bar) , x₂-bar = 0.095 g/cm

a) the two samples are independent since they are different types of mothers, smoking mothers and non smoking mothers

b)H₀: an expectant mother's cigarette smoking has any not effect on the bone mineral content of her otherwise healthy child.

Hₐ: an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

c) Test statistic:

t = (x₁-bar - x₂-bar )/S (√1/n₁+1/n₂)

where , S = √(s₁²(n₁ - 1) + s₂²(n₂ -1))/n₁+n₂ - 2

S = √((0.026)²(76) +(0.025 )²(160))/236

= 0.0253

then, t = (0.098 - 0.095 )/0.0253(√1/77 +1/161 )

=> t = 0.859

Using the critacal table critical t is

Critical t = ±1.970065

Degrees of freedom =236.0000

P-Value=0.3935 which is greater than α(0.05),

So , we accept H₀

Thus, an expectant mother's cigarette smoking has not effect on the bone mineral content of her otherwise healthy child.

To learn more about Hypothesis testing, refer:

brainly.com/question/4232174

#SPJ4

8 0
1 year ago
Joel can read around 16 sentences per minute of his current novel. He wants to finish his reading before the movie comes out nex
Ainat [17]

Answer:

2.7 hours or 2 hrs, 42 min

Step-by-step explanation:

to find the total number of sentences remaining we can multiply 130 sentences times 20 pages remaining to get

2,600 sentences

if we divide that number by 16 we'll get the number of minutes he needs to finish the novel

2600/16 = 162.5 minutes which, when divided by 60, is 2 7/10 hours

7/10 = 42/60 so it comes out to 2.7 hours or 2 hrs, 42 min

3 0
2 years ago
Please help due today
FromTheMoon [43]

Answer:

It's gotta be either A or B because C and D don't even make up a square.

I believe that it's one of those ( A or B).

Step-by-step explanation:

Sorry I couldn't help you all the way through to the answer. Hope this helps though! :)

8 0
2 years ago
Use the algebra tiles to model x – 3. Then complete the statements. The variable is represented by Subtracting three is represen
Arte-miy333 [17]

The complete statements are as follows;

The variable is represented by<u> one </u><u>orange </u><u>x </u><u>tiles</u><u>.</u>

Subtract three is represented by <u>three</u><u> </u><u>blue</u><u> - tiles</u>.

The tiles represent <u>subtraction</u> <u>3</u> from an unknown number.

<h3>What are algerbra tiles?</h3>

Algebra tiles are square and rectangle shaped tiles or tiles that represent numbers and variables.

Given

Use the algebra tiles to model x -3.

The complete statements are as follows;

The variable is represented by<u> one </u><u>orange </u><u>x </u><u>tiles</u><u>.</u>

Subtract three is represented by <u>three</u><u> </u><u>blue</u><u> - tiles</u>.

The tiles represent <u>subtraction</u> <u>3</u> from an unknown number.

To know more about algerbra tiles click the link given below.

brainly.com/question/81876

6 0
2 years ago
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