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3 years ago

What is the definition of identity property of addition

Mathematics

2 answers:

Andrews [41]3 years ago

6 0

It states that when you add zero to any number, it equals the number itself.

spayn [35]3 years ago

4 0

<span>In math, an identity is a number, n, that when added to other numbers, gives the same number, n. The additive identity is always zero. This brings us to the identity property of addition, which simply states that when you add zero to any number, it equals the number itself.</span>

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jasenka [17]

Answer:

x 3:7 y 5:9 :)

Step-by-step explanation:

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3 years ago

A bakery needs to arrange 402

erma4kov [3.2K]

Hi there,

I hope you and your family are staying safe and healthy during this anomalous time.

To find the answer, we just need to:

$\frac{402}{15} = 26.8$

Thus,

We can estimate they will need 27 or 26 trays

Please leave 5 stars and a like if you find this answer helpful! Don't hesitate to reach out to me if you need more help.

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2 years ago

Plz Help With This Math Brainliest First Person

In-s [12.5K]

Answer:

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Step-by-step explanation:

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3 years ago

Seven more than the product of twenty eight and thirty one

Mariulka [41]

The equation should look like this: (28*31)+7= 875

Unless i've completely misunderstood the basis of the equation.

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3 years ago

During a recent drought, a water utility in a certain town sampled 100 residential water bills and found that 80 of the residenc

Anastasy [175]

Answer: 0.893

Step-by-step explanation:

Given : Sample size of residential water bills: n=100

Number of residences had reduced their water consumption over that of the previous year = 80

Then sample proportion: $\hat{p}=\dfrac{80}{100}=0.8$

Critical value for 98% confidence= $z_{\alpha/2}=2.326$

The upper bound for confidence interval for population proportion :

$\hat{p}+ z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$=0.8+ (2.326)\sqrt{\dfrac{0.8(1-0.8)}{100}}\\\\=0.8+0.09304=0.89304\approx0.893$

Hence, the 98% upper confidence bound for the proportion of residences that reduced their water consumption.=0.893

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3 years ago