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GarryVolchara [31]
3 years ago
7

Hiiiooo!! Can someone please help me with this ❤️:D

Mathematics
1 answer:
AnnyKZ [126]3 years ago
5 0

Answer:

ok

Step-by-step explanation:

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Any help would be great
navik [9.2K]
I believe the perimeter is 45 feet
3 0
2 years ago
What is the slope and y-intercept of line p graphed below?
S_A_V [24]
The y int is where the line crosses the y axis ...so ur y int is 3 or (0,3).
ur slope...start at the y int (0,3)....and if u come down 3, and go to the right 2, and down 3, and to the right 2 u are landing on ur line. So ur slope is -3/2
4 0
3 years ago
A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past
Minchanka [31]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the distance traveled by deluxe tire .

As per given , we have

Null hypothesis : H_0 : \mu \geq50000

Alternative hypothesis : H_a : \mu

Since H_a is left-tailed and population standard deviation is known, thus we should perform left-tailed z-test.

Test statistic : z=\dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overline{x}= sample mean

\mu= Population mean

s=sample standard deviation

For n= 31,\ \sigma=8000,\ \overline{x}=46,800\ \&\ s=46,800, we have

z=\dfrac{46800-50000}{\dfrac{8000}{\sqrt{31}}}=-2.23

By using z-value table,

P-value for left tailed test : P(z≤-2.23)=1-P(z<2.23)   [∵P(Z≤-z)=1-P(Z≤z)]

=1-0.9871=0.0129

 Decision : Since p value (0.0129) < significance level  (0.05), so we reject the null hypothesis .

[We reject the null hypothesis when p-value is less than the significance level .]

Conclusion : We do not have enough evidence at 0.05 significance level to support the claim that t its deluxe tire averages at least 50,000 miles before it needs to be replaced.

4 0
3 years ago
6. Josh has a $250 gift card to Under Armour.
Komok [63]

Answer:

x=10  (22.5x+6.50=250)

Step-by-step explanation:

6 0
2 years ago
What is the gcf of 42 and 10
kolbaska11 [484]

Answer:

2

Step-by-step explanation:

Make a list

10: 1, <u>2, </u>5, 10

42: 1,<u> 2,</u> 3, 6, 7, 14, 21

6 0
3 years ago
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