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gayaneshka [121]
3 years ago
9

PLS help!!!!!there's the question

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

Answer:

15 minutes

Step-by-step explanation:

Laura is running 2 miles per hour faster than Tony. (7-5)

if she catches op 2 miles per hour

she will catch up 1 mile per half hour

and 0.5 mile per 15 min

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Omar bought 6 pencils and 5 erasers at the school supply store. The equation 6p+5e=3.83 represents how much he spent. Jessie bou
dezoksy [38]
 Please explain to me what exactly the question is. You can't answer something if there is no question. 
4 0
4 years ago
A company claims that the mean weight per apple they ship is 120 grams with a standard deviation of 12 grams. Data generated fro
Veronika [31]

Answer:

There is no sufficient evidence to reject the company's claim at the significance level of 0.05

Step-by-step explanation:

Let \mu be the true mean weight per apple the company ship.  We want to test the next hypothesis

H_{0}:\mu=120 vs H_{1}:\mu\neq 120 (two-tailed test).

Because we have a large sample of size n = 49 apples randomly selected from a shipment, the test statistic is given by

Z=\frac{\bar{X}-120}{\sigma/\sqrt{n}} which is normally distributed. The observed value is  

z_{0}=\frac{122.5-120}{12/\sqrt{49}}=1.4583. The rejection region for \alpha = 0.05 is given by RR = {z| z < -1.96 or z > 1.96} where the area below -1.96 and under the standard normal density is 0.025; and the area above 1.96 and under the standard normal density is 0.025 as well. Because the observed value 1.4583 does not fall inside the rejection region RR, we fail to reject the null hypothesis.

5 0
4 years ago
Two rules for creating a pattern are given below.
DochEvi [55]

Applying the rules, it is found that ordered pair (24,6), option A, works for both rules.

---------------------

The rule 1 is that y is x divided by 4, that is:

y_1 = \frac{x}{4}

The rule 2 is that y is x subtracted from 18, that is:

y_2 = x - 18

In item A, we have that the input x = 24, thus, the results of the expressions are:

y_1 = \frac{24}{4} = 6

y_2 = 24 - 18 = 6

In both cases, ordered pair (24,6), thus <u>option A is the answer.</u>

A similar problem is given at brainly.com/question/22103476

4 0
3 years ago
What is (12m+4n)+(3m+7n)
Lapatulllka [165]

Answer 15m + 11n

Step-by-step explanation: 12+3=15 =15m + 4+7=11 = 11n = 15m + 11n

4 0
4 years ago
Read 2 more answers
All of the following are equivalent,except. <br> (12+3)x<br> (12+3x)x<br> 15x<br> 12x+3x
ValentinkaMS [17]

Answer: (12+3x)x

Explanation: When you distribute the x in the first option you'll get 12x+3x, which you can simplify to 15x (combine like-terms). Having this information, you know that the first one is equivalent to the third one and the fourth option. When you distribute the x in the second you you get (3x^2)+12x. This is not equal to any other option.

8 0
3 years ago
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