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Zarrin [17]
4 years ago
12

Help Please I'm Out Of Time ;(

Mathematics
2 answers:
oksian1 [2.3K]4 years ago
5 0

Answer: The difference between a number and 1/2

1/2 taken away from a number

x decreased by 1/2 and

1/2 subtracted from a number

Step-by-step explanation: All four of these are correct. (NOT the one that's backwards. Not 1/2 minus some number! ) Subtraction is not commutative.

mamaluj [8]4 years ago
4 0

Answer:

The answers are

1/2 taken away from a number

x decreased by 1/2

1/2 subtracted from a number

Hope this helps you

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Clearly, alternative B

y = 0.01x + 7.5
y = (0.01)*5000 + 7,5
y = 50 + 7.5
y = 57.50
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A news report says that 28% of high school students pack their lunch.
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The answer would be C because 28 percent of 600 is is 168.
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You are enclosing a rectangular garden with 60 feet of ornamental fencing. the area of the garden is 200 square feet. what are t
Lilit [14]

The perimeter is equal to 60 feet and has the formula:

Perimeter = 2 l + 2 w

60 = 2 l + 2 w

 

The area is equal to 200 square feet and has the formula:

Area = l w

200 = l w

 

Rewriting area in terms of l:

l = 200 / w

 

Combining this with the perimeter formula:

60 = 2 (200 / w) + 2 w

60 = 400 / w + 2 w

Multiplying all by w:

60 w = 400 + 2 w^2

Dividing by 2 and rearranging:

w^2 – 30 w = - 200

Completing the square:

(w – 15)^2 = - 200 + (-15)^2

(w – 15)^2 = 25

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Hence the dimensions of the garden is 10 feet by 20 feet

5 0
4 years ago
Write the null and alternative hypotheses for the following example. Determine if the example is a case of a two-tailed, a left-
Molodets [167]

Answer:

Kindly check explanation

Step-by-step explanation:

(a)

H0 : μ = 12

H1 : μ > 12

This is a right tailed test ; the alternative hypothesis has a greater than sign, difference between sample and population mean value will be positive.

(b)

H0 : μ = 10

H1 : μ > 10

This is a right tailed test ; the alternative hypothesis has a greater than sign, difference between sample and population mean value will be positive.

(c)

H0 : μ = 100

H1 : μ < 100

This is a left tailed test ; the alternative hypothesis has a less than sign, difference between sample and population mean value will be negative.

(d)

H0 : μ = 12

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4 0
4 years ago
If are is 24cm² find the x ​
Nimfa-mama [501]

Answer:

x = 6

Explanation:

Given:

Area = 24cm^2

See attachment for shape

Required

Find x

The attached shape is a rectangle.

So:

x * 4 = 24

4x = 24

Divide both sides by 4

\frac{4x}{4} = \frac{24}{4}

x = \frac{24}{4}

x = 6

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3 years ago
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