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3 years ago

True or false, the following expressions are equivalent:

Mathematics

1 answer:

drek231 [11]3 years ago

3 0

Answer:False

Step-by-step explanation:

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While gardening, John spend 1 1 2 hours planting and 2 1 8 hours trimming. What was the total hours worked by John in his garden

Alex73 [517]

Answer:Total hours worked by John in his garden=3 5/8 hours.

Step-by-step explanation:

Time spent planting =1 1 /2 hours planting

Time spent trimming = 2 1 /8 hours

Total hours worked by John in his garden= Time spent planting +Time spent trimming

=1 1/2 + 2 1/8( add whole numbers together and fractions together)

= 3 4+1 /8

3 5/8 hours.

6 0

3 years ago

4 1/3 · 3/5 express your answer in simplest form. A. 2 3/5 B. 2 C. 4 1/5 D. 1 1/15

a_sh-v [17]

Oh the answer is a I looked it up this time

7 0

3 years ago

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I'll mark you brainliest for the right answer and 15 POINTS!!!

Karolina [17]

Answer:

1080

Step-by-step explanation:

4 0

3 years ago

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A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is more than

PilotLPTM [1.2K]

Answer:

A) 2.58

B) 1.96

C) 1.65

Step-by-step explanation:

A hypothesis used to test that

$H_o : \mu = 10$

against the alternatives $H1 : \mu$ not equal to 10

if null hypothesis is true, then distribution of test statics follow

$Zo = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

for two sided alternatives hypothesis $( H1: \mu \neq 7)$ , then P value is

$P = 2[1- \phi(\left | Zc \right |)]$ (1)

a)significance level $\alpha = 0.01$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 2.58$ FROM Z TABLE

B) significance level $\alpha = 0.05$

from 1st equation we get

$\pi (\left | Zc \right |) = P(Zo < \left | Zc \right |) = 1 - \frac{0.05}{2} = 0.975$

Therefore $\left | Zc \right | = 1.96$ FROM Z TABLE

C) significance level $\alpha = 0.10$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 1.65$ FROM Z TABLE

3 0

4 years ago

5/6 of 7 what is it. oopoo

Westkost [7]

Answer:

5 5/6

Step-by-step explanation:

5/6 x 7 = 35/6 = 5 5/6

4 0

3 years ago