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2 years ago

A drink manufacturer increases the volume of its cans by 25%.They now hold 450ml.How much did they used to hold?

Mathematics

1 answer:

ss7ja [257]2 years ago

7 0

Answer:

562.5ml

Step-by-step explanation:

using percentage multipliers you just have to do:

add 0.25 to 1 because that will make 125%

then multiply it by 450ml

450ml x 1.25 = 562.5ml

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On the left, model 4 + (-6). On the right, model 4 - 6.

insens350 [35]

Answer:

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2 years ago

The graph shows a reflection in the x-axis. The matrix M such that, for any point (x, y), M(x, y) = (x', y') is

Rashid [163]

Answer:

This is a reflection about the x-axis.

Step-by-step explanation:

A reflection about the x-axis has the rule

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Therefore

M[x,y] = [x,-y}

Let M=

|a b|

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Then the matrix multiplication gives

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3 years ago

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Step-by-step explanation:

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2 years ago

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

mash [69]

Complete Question

A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?

Answer:

The margin of error is $E = 0.7$

The sample mean is $\= x = 4.2$

Step-by-step explanation:

from the question we are told that

The upper limit is $k = 4.9$

The lower limit is $r = 3.5$

Generally the margin of error is mathematically represented as

$E = \frac{k - r}{ 2}$

$E = \frac{ 4.9 - 3.5 }{2}$

$E = 0.7$

Generally the sample mean is mathematically evaluated as

$\= x = k - E$

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2 years ago

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svetlana [45]

Answer:

1. G

2. Not sure what you are ask

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2 years ago