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Dmitry [639]
3 years ago
6

HELPPPP PLEASEEEDJDJSJNDN

Mathematics
2 answers:
sashaice [31]3 years ago
6 0

Answer:

x=14/9

Step-by-step explanation:

Ierofanga [76]3 years ago
3 0

Answer:

x = 0

Step-by-step explanation:

9x - 7 = -7

  • Add 7 on both sides so that 9x can be isolated

9x - 7 + 7 = -7 + 7

9x = 0

  • Divide by 9 on both sides so x can be by itself

9/9x = 0/9

x = 0

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Find the probability of throwing a sum of 10 at least 7 times in 9 throws of a pair of fair dice
Elenna [48]

Answer:

19.308

Step-by-step explanation:

3 0
2 years ago
five more than the product of a number n and 8 is at least 100. Write an inequality that can be used to find all positive values
hjlf

"More than" indicates addition, and "product" indicates multiplication.



The inequality is:



5 + 8n >= 100



Now we can solve for all positive values of n:



5 + (-5) + 8n >= 100 + (-5)



8n >= 95



8n/(8) >= 95/(8)



n >= 11.875



So all positive values of n include everything between 11.875 and positive infinity, inclusively.

5 0
3 years ago
Answer pls I dont know maths
ale4655 [162]

Answer:

well learn math

Step-by-step explanation:

did you know that everyday is someone's birthday? if you don't

then Three piggies in the city.

5 0
3 years ago
1. A researcher is interested in whether drinking different sources of caffeine (tea vs. coffee) leads
g100num [7]

The researcher's scientific/alternative hypothesis is:

  • Different sources of caffeine leads to differences in women's attentional control performance.

The researcher's null hypothesis is:

  • Different sources of caffeine leads to no difference in women's attentional control performance.

The type of sample which the researcher is using is:

  • Probability sampling.

A disadvantage to using this sample type is:

  • It is time consuming.

The thing which the researcher can conclude about these data is:

  • It is conclusive based on the reaction of the women to the independent variables.

If, in the population, women actually show NO difference in attentional control performance after drinking black tea versus coffee, the type of statistical error which the researcher has made is:

  • Type I error

<h3>What is a Scientific Hypothesis?</h3>

This refers to the difference between two variables which is discovered during a scientific research and is an observed pattern.

Read more about scientific hypothesis here:
brainly.com/question/896413

3 0
2 years ago
Can someone help me pls?
il63 [147K]

Answer:

a, because a stand for alpha while b is beta

3 0
3 years ago
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