What is 4.5 divided by 2

Mathematics

1 answer:

pav-90 [236]3 years ago

7 0

Answer:

2.25

Step-by-step explanation:

You could just use a calculator.

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The distribution of vitamin C amount in vitamin drops produced by a given factory is approximately Normal, with a mean of 60.0 m

bagirrra123 [75]

You have to calculate z-scores for each of these values and then compare them with what is needed for the 80%tile on a Normal curve.

z = (value - mean)/(standard deviation) = (value-60.0)/0.5.
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5 0

3 years ago

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Simplify the following expression by combining like terms

Monica [59]

Answer:

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Step-by-step explanation:

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3 years ago

Sienna used the scale drawing above to create a pool that is 14 ft wide x 22 ft long. She then decided to make pool with a final

Bond [772]

A scale factor allows a shape to be changes into another shape by changing the linear dimensions to the multiples of the initial dimension and a constant

The expression that finds the change in scale factor for the longer pool with a final length of 33 ft. Sierra is building is the option;

$\dfrac{2 \, ft.}{3 \, ft.}$

Reason:

Known parameters are;

Dimensions of the pool created = 14 ft. wide × 22 ft. long

Final length of the pool = 33 ft.

Let x represent the length of the drawing using the initial scale factor, we have;

$The \ initial \ scale \ factor = \dfrac{22 \, ft.}{x \, in.}$

The scale factor of the drawing following a final length of 33 ft. is therefore;

$New \ scale \ factor = \dfrac{33 \, ft.}{x \, in.}$

The change in scale factor is given as follows;

$Change \ in \ scale \ factor = \dfrac{Initial \, scale \, factor}{Final \, scale \, factor}$

Therefore;

$Change \ in \ scale \ factor = \frac{\left( \dfrac{22 \, ft.}{x \, in.} \right)}{\left( \dfrac{33 \, ft.}{x \, in.} \right)} = \dfrac{2 \, ft.}{3 \, ft.}$