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3 years ago

Find the difference. Write your answer in simplest form. 7/10- 1/4

Mathematics

1 answer:

Mila [183]3 years ago

3 0

Answer:

1/2

Step-by-step explanation:

Convert these into decimals. (This is one of many ways to go about this.)

.7 - .25 = .5

.5 = 1/2

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A test is made of H subscript 0 colon space mu space equals space 43 space space v e r s u s space space H subscript 1 colon spa

sweet [91]

Answer:

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 43

Given that the mean of the sample = 47

Given that the standard deviation of the Population = 25

Given that the sample size 'n' = 76

Step(ii):-

Null hypothesis:H₀: μ = 43

Alternative Hypothesis: H₁: μ ≠ 43

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{47-43 }{\frac{25}{\sqrt{76} } }$

Z = 1.39

Level of significance = 0.05

The critical value = 1.96

Final answer:-

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

4 0

3 years ago

What are the chances of randomly selecting an odd number from the numbers 1-16?

jok3333 [9.3K]

Answer: 8/16

Step-by-step explanation: Half of the numbers are odd, half of the others as even, so 8/16, which is half of the numbers.

5 0

3 years ago

Read 2 more answers

• What is the constant term in the expression 3x + 11?

Vinvika [58]

Answer:

Step-by-step explanation:

A constant term in an expression or equation contains no variables. In other words, it’s just number on its own. For example: f (x) = 2x2 + 3 (the constant term is 3). Other examples of constant terms: 5, -99, 1.2 and pi (π = 3.14…).

7 0

2 years ago

Read 2 more answers

How do you graph the function g(x)

Verizon [17]

Lightly draw a vertical line at -3 (x= -3 is the divider) on the left side graph x + 1, on the right side graph 1/2x + 2.
because these equations don't match up at the -3 coordinate, you have to draw an open (not colored in) circle at the beginning at the 1/2x-2 equation

6 0

3 years ago

6.5yd and 11yd please find the area

Afina-wow [57]

Multiply length times width to find the area. 6.5x11= 71.5

3 0

3 years ago