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3 years ago

(-3(2)(-2) multiplying integers

Mathematics

1 answer:

WINSTONCH [101]3 years ago

5 0

-3 times 2 times -2.

First do 2 times -2 which is -4.

Then, multiply that by -3 which is 12.

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Az-qb=yz solve for z and justify each step

ElenaW [278]

Step 1:
We assume that A, q, and, b, are real numbers (where y could be a variable).
Step 2:
Terms with z to the left of the equation. Independent terms of z to the right of the equation.
Az - yz = qb
Step 3:
Common factor z.
z (A - y) = qb
Step 4:
Clear z.
z = qb / (A - y)
Answer:
z = qb / (A - y)

7 0

4 years ago

In a poll of 745 randomly selected adults, 591 said that it is morally wrong to not report all income on tax returns. Use a 0.01

Marianna [84]

Answer:

The calculated value Z = 2.734 > 2.576 at 0.01 level of significance

Null hypothesis is rejected

The claim that 75% of adults say that it is morally wrong to report all income on tax returns.

Step-by-step explanation:

Step(i):-

Given random sample size 'n' = 745

Given In a poll of 745 randomly selected adults, 591 said that it is morally wrong to not report all income on tax returns

sample proportion

$p^{-} = \frac{x}{n} = \frac{591}{745} = 0.7932$

Given Population proportion P = 0.75

Q = 1-P

Q = 1 - 0.75 = 0.25

Null Hypothesis :H₀: P=0.75

Alternative Hypothesis :H₁:P≠ 0.75

Step(ii):-

Test statistic

$Z = \frac{p^{-}-P }{\sqrt{\frac{P Q}{n} } }$

$Z = \frac{0.7932-0.75 }{\sqrt{\frac{0.75 X 0.25}{745} } }$

Z = 2.734

Level of significance ∝ = 0.01

The critical value Z =2.576

The calculated value Z = 2.734 > 2.576 at 0.01 level of significance

Null hypothesis is rejected

The claim that 75% of adults say that it is morally wrong to report all income on tax returns.

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The answer is 56 people out of the 200

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INTERPRET THE VALUE OF EACH PLACE VALVE POSITION AS IO TIMES

kompoz [17]

Answer:

Place value | Numbers big and small | Siyavulaintl.siyavula.com › read › maths › jss1 › 01-numbers-bi...

The number 12 means we have 1 group of ten stars and 2 stars left over. ... Put each digit of the number into the correct position in the table. ten ... These place values are represented from biggest to smallest, moving to the right after the decimal ... As for whole numbers, we move to a new place value each time we reach 10.

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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