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3 years ago

What is the answer to solving for y -8=y-9

Mathematics

1 answer:

Makovka662 [10]3 years ago

6 0

Answer:

no solution

Step-by-step explanation:

y-8=y-9

y=y-1

error

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21% of deaths among male adults can be attributed to heart diseases. Is this percentage different among residents in Sonoma Coun

qwelly [4]

Answer:

Step-by-step explanation:

The null hypothesis is usually the default statement while the alternative hypothesis is its opposite and usually tested against the null hypothesis.

In this case study, the null hypothesis is u = 21%/0.21, the percentage is not different among residents in Sonoma County and is equal to 0.21.

While the alternative hypothesis is u =/ 0.21, the percentage is different among residents in Sonoma County; not equal to 0.21

4 0

2 years ago

Helppp how do u do 12

Delicious77 [7]

B is the correct answer

$\frac{x}{100} = \frac{53}{106} \\ x = \frac{53 \times 100}{106} = \frac{5300}{106} = 50$

good luck

4 0

2 years ago

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Many companies "grade on a bell curve" to compare the performance of their managers and professional workers. This forces the us

GarryVolchara [31]

Answer:

option A

Step-by-step explanation:

given,

10% A grades 80% B grades 10% C grades

This year, managers with scores less than 35 received C's and those with scores above 425 received A's.

The mean has to be middle of two corresponding cutoff value

$\mu = \dfrac{35+425}{2}$

μ = 230

Cutoff Off C grade corresponds with the area of 0.10 is table A.

corresponding z- score according to Table A

Z = -1.28

now, standard deviation

$z = \dfrac{x-\mu}{\sigma}$

$\sigma= \dfrac{x-\mu}{z}$

$\sigma= \dfrac{35-230}{-1.28}$

σ = 152.3

Correct answer is option A

4 0

3 years ago

At the start of the school year, students can pick to have either a black ID holder (B) or a red ID holder (R). Suppose that two

Makovka662 [10]

The sample space is nothing but ALL possible outcomes. In this case you have Black & Red id's. Then the sample space is {black, red}

3 0

3 years ago

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9.8j - 6 = 36<br> solve the equation, round to the nearest hundredth

Lady_Fox [76]

Answer:

j = 4.29

Step-by-step explanation:

9.8j - 6 = 36

+ 6 +6

9.8j = 42

9.8j/9.8 = 42/9.8

j = 4.29

3 0

2 years ago

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