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rjkz [21]
3 years ago
7

Simplify the function f(x) = 7(). Then answer the questions below. The initial value for the function is . The simplified base f

or the function is . The domain of the function is . The range of the function is
Mathematics
2 answers:
lapo4ka [179]3 years ago
7 0

Answer:

7, 3 all real numbers, Y is greater then 0 ( Y>0)

Step-by-step explanation:

Crank3 years ago
6 0

7

3

all real numbers

y>0

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A baseball diamond is a square that is 90feet on each side. What is the distance a catcher has to throw the ball from home to se
Crank

Answer:

well, since a real baseball diamond is 90 feet on each side then the distance from homebase to second is 127 feet  3 3/8 inches

hope this helps :D


4 0
3 years ago
Read 2 more answers
Alonzo wrote the equation x=2+4y-5 solve for y
kati45 [8]

hi

if x= 2+4y-5  then        x-2 +5 =  4y   so   y =  (x-2+5)  /4 =  ( x+3) /4

conclusion   y  =  (x+3)/4

3 0
2 years ago
Tain has a great literary tradition that spans centuries. One might assume, then, that Britons read more than citizens of other
tresset_1 [31]

Answer:

Null hypothesis:p_{1} \leq p_{2}  

Alternative hypothesis:p_{1} > p_{2}  

z=3.02  

p_v =P(Z>3.02)=0.00127  

The p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion of Canadians is not significantly higher than the porportions of readers at Britons.  

Step-by-step explanation:

1) Data given and notation  

X_{1}=0.86*1004 represent the number of Canadians randomly sampled by Gallup that read at least one book in the past year

X_{2}=0.81*1009 represent the number of Britons randomly sampled that read at least one book in the past year

n_{1}=1004 sample of Gallup selected

n_{2}=1009 sample of Britons selected

p_{1}=0.86 represent the proportion of Canadians randomly sampled by Gallup that read at least one book in the past year

p_{2}=0.81 represent the proportion of Britons randomly sampled that read at least one book in the past year

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the proportion for men with red/green color blindness is a higher than the rate for women  , the system of hypothesis would be:  

Null hypothesis:p_{1} \leq p_{2}  

Alternative hypothesis:p_{1} > p_{2}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{0.81+0.86}{2}=0.835

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.86-0.81}{\sqrt{0.835(1-0.835)(\frac{1}{1004}+\frac{1}{1009})}}=3.02  

4) Statistical decision

For this case we don't have a significance level provided \alpha, but we can calculate the p value for this test.  

Since is a one side test the p value would be:  

p_v =P(Z>3.02)=0.00127  

So the p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion of Canadians is not significantly higher than the porportions of readers at Britons.  

5 0
3 years ago
Joe bought g gallons of gasoline for $2.65 per gallon and c cans of oil for $3.45 per can. a. What expression can be used to det
Harlamova29_29 [7]

Step-by-step explanation:

PART A

a=total amount

c=cans of oil

g=gasoline

a=2.65g+3.45c

PART B

a=2.85(8.4)+3.15(6)

a=23.94+18.90

a=42.84

Hope that helped =)

8 0
2 years ago
Does the graph represent a function? y 97 8 7+ 6+ 5+ 3 M - 7 -6 -5 -4 -3 -2 1 2 3 4 5 6 7 -2+ -3+ -4 -5 Choose 1 answer: A Yes B
docker41 [41]

Answer:

Yes

Step-by-step explanation:

A function is a relation where each x value has its own y value.

If a x value repeats the relation is not a function

Looking at the graph, no x value repeats therefore the graph is indeed a function

7 0
2 years ago
Read 2 more answers
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