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Alenkinab [10]
3 years ago
5

Brianna is making fruit dip. The

Mathematics
1 answer:
STALIN [3.7K]3 years ago
6 0
The answer is 6 servings
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This graph shows how fast a race car can travel in a stock car race
Nookie1986 [14]

Answer:

C. In 2 seconds, the race car travels 180 meters.

Step-by-step explanation:

7 0
2 years ago
Use this information to answers Questions 1 through 7. The U.S. government provides money to each state to maintain the intersta
vladimir2022 [97]

Answer:

1. Null Hypothesis, H_0 : \mu \leq  70 mph

  Alternate Hypothesis<u>,</u> H_A : \mu > 70 mph

2. Value of test statistics is 2.652.

Step-by-step explanation:

We are given that Kansas Highway Patrol recorded the speed of 450 interstate vehicles and found the mean speed of 70.2 mph with standard deviation 1.6 mph.

We have to conduct a hypothesis test at significance level 0.01 to decide whether or not to reduce the money sent to Kansas.

<em><u>Let </u></em>\mu<em><u> = true mean speed of all vehicles on the Kansas interstate highway system.</u></em>

SO, <u>Null Hypothesis</u>, H_0 : \mu \leq  70 mph   {means that the federal government will not reduce the amount of funding it provides as the speed limit is less than or equal to 70 mph}

<u>Alternate Hypothesis,</u> H_A : \mu > 70 mph   {means that the federal government will reduce the amount of funding it provides as the speed limit exceed 70 mph}

The test statistics that will be used here is <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                        T.S.  = \frac{\bar X -\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean speed limit of 450 interstate vehicles = 70.2 mph

             s = sample standard deviation = 1.6 mph

             n = sample of vehicles = 450

So, <em><u>test statistics</u></em>  =   \frac{70.2-70}{\frac{1.6}{\sqrt{450} } }  ~ t_4_4_9

                               =  2.652

<u><em>Hence, the value of test statistics is 2.652.</em></u>

5 0
2 years ago
A train covers 168 miles at a speed of 42 mph. How much time dod it take?
Sergio039 [100]

Answer:

4 hours

Step-by-step explanation:

42x?=168

?=4

3 0
3 years ago
The highest elevation of basket dome 40 years ago was measured at 7,600 feet. what is the rate of change in elevation for this a
svet-max [94.6K]

Answer:

Rate of change in elevation  = 0.6 in/year

Step-by-step explanation:

Note:

Current elevation (Missing) = 7,602 feet

Given:

Old elevation = 7,602 feet

Number of year = 7,600

Find:

Rate of change in elevation

Computation:

Change in elevation = 7,602 - 7,600

Change in elevation = 2 ft

Change in elevation = 2 x 12 = 24 inches

Rate of change in elevation  = 24 / 40

Rate of change in elevation  = 0.6 in/year

5 0
3 years ago
The expression (2x^2)^3 is equivalent to _____.<br><br> 6x^2<br> 6x^5<br> 8x^6
4vir4ik [10]

Answer:

8x^{6}

Step-by-step explanation:

To solve this problem is multiply 2 by 2 and then 2 which gives you 8.

Then you will add 2+2+2 and get six. For when multiply exponents you are adding.

8 0
3 years ago
Read 2 more answers
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