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Goryan [66]
3 years ago
7

A news article says that high school students are currently spending an average of 15 hours per week doing homework online. You

don't think this is an accurate estimate, although you're not sure whether the real value is higher or lower. Write appropriate hypotheses.
Mathematics
1 answer:
Wewaii [24]3 years ago
6 0

Answer:

Step-by-step explanation:

The null hypothesis is the hypothesis that is assumed to be true. It is an expression that is the opposite of what the researcher predicts.

The alternative hypothesis is what the researcher expects or predicts. It is the statement that is believed to be true if the null hypothesis is rejected.

From the given situation,

news article says that high school students are currently spending an average of 15 hours per week doing homework online. This is the null hypothesis.

H0: µ = 15 hours

You don't think this is an accurate estimate, although you're not sure whether the real value is higher or lower. This is the alternative hypothesis.

Ha : µ ≠ 15 hours

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You need school supplies. You go to the store and see that there are 6 different
Darya [45]

Answer:

16 folders

Step-by-step explanation:

The first store has 1152 possible combinations. The second store has 72 combinations without the folders.

If we divide 1152 by 72, we have 16. Therefore the second store needs 16 folders to have the same number of combinations as the first store.

7 0
3 years ago
X - y = 6
Dominik [7]

the system has no solution.

Option C is correct.

Step-by-step explanation:

We need to solve the system of equations by substitution

x - y = 6\,\,\,eq(1)\\x = y + 2\,\,\,eq(2)

Putting value of x from eq(2) into eq(1)

(y+2)-y=6\\y+2-y=6\\0+2=6\\0=6-2\\0\neq4

As as 0≠4is not true, we cannot find the value of y so the system has no solution.

Option C is correct.

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/7490805
  • brainly.com/question/9045597
  • brainly.com/question/13168205

#learnwithBrainly

4 0
3 years ago
3) Two of these numbers are the same value, which ones are<br> they? 40%, .44, 14, .04, 4/10?
baherus [9]

Answer:

40% and 4/10

Step-by-step explanation:

If you convert them into decimals, they will both give the same decimals which gives 0.4

4 0
3 years ago
Read 2 more answers
The ratio of a circle's radius to its diameter is always 1 to 2. In math class, Russell uses his compass to draw a circle with a
Semenov [28]

12 bc 6/12 equals 1/2

8 0
3 years ago
Read 2 more answers
Multiply.<br>(v+8)(v-8)<br>simplify
san4es73 [151]
V * v = v^2
v * -8 = -8v
8 * v = 8v
8 * -8 = -64

v^2 - 8v + 8v - 64
v^2 - 64
<span>
This was using the distributive property or using the FOIL method</span>
4 0
3 years ago
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