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zavuch27 [327]
3 years ago
5

Can somebody help due at 10AM

Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0

Answer:

The slope from point O to point A is fraction 1 over 4 time the slope of the line from point A to point B.

Step-by-step explanation:

Helen [10]3 years ago
4 0
That answer isn’t right
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Kim has exactly enough money to buy 40 oranges at 3x cents each. If the price rose to 4x cents per orange, how many oranges coul
olganol [36]

53.3

Step-by-step explanation:

Make an equation.

40y = 3x

zy=4x

Substitute y

3 0
3 years ago
MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
steposvetlana [31]
I believe the answer is 9

This is because in order to take out a three, There would need to be 2 3's and 9 is 3x3, so the answer is 9.
3 0
3 years ago
Solve the system using elimination
gayaneshka [121]

Step-by-step explanation:

-4x + 9y = -22

-9x -9y = 126

-13x = 104

x = -8

8 +`y = 14

y = 6

(-8,6)

6 0
3 years ago
Vanya drove 405 miles in 9 hours. Chuy drove 350 miles in 7 hours. Alfredo drove 330 miles in 6 hours. Who was driving at the fa
Novosadov [1.4K]

Answer:

350 miles in 7 hours

Step-by-step explanation:

  1. find

if 9=405

1=v(represent with a variable

2. do the same for the others and select the highest number

7 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
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