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3 years ago

What is the Definition of Algebra?

Mathematics

2 answers:

saveliy_v [14]3 years ago

7 0

Answer:

the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

Step-by-step explanation:

Alla [95]3 years ago

7 0

Answer:

<h2>ALGEBRA </h2>

<h2><<<the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.</h2><h2>"courses in algebra, geometry, and Newtonian physics"</h2><h2>a system of algebra based on given axioms.</h2><h2>plural noun: algebras</h2><h2 />

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Joshua has $560. He wants to buy a laptop that costs $320 as well as a case for the laptop that costs $65 and is currently on sa

Igoryamba

Answer:$154.73

Step-by-step explanation:

Take 65 and multiple .15 and that will give you the 15% off of the case. When u do that you get 9.75 so then 65-9.75= 55.25 multiply .08 for the sales tax on the case = 4.42 add to 55.25= 59.67 then add the sales tax for the laptop 320 multiplied by .08 = 25. 60 for a total of 345.60 then add that to 59.67 = 405.27 then u have to subtract that from 560 and Josh has $154.73

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3 years ago

Find the value of each trigonometric ratio.

Tasya [4]

Answer: 40/41

Step-by-step explanation:

The cosine can be represented as adjacent/hypotenuse. Thus, the cosine of C is 40/41

4 0

4 years ago

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A tank full of water is leaking at a constant rate for 30 minutes. The equation

ankoles [38]

Answer: A. There were 500 liters in the tank when the leak started, and it is decreasing by 9 liters per minute.

Step-by-step explanation:

This equation is in the form; y =mx + c.

<em>c</em> in this equation is the value of y when x is at 0.

<em>c</em> in the above formula is 500 which means that the number of litres (y) at zero minutes(x) is 500 litres.

<em>m</em> is the rate of change as a result of a change in x.

<em>m</em> in this equation is -9 which means that the water is reducing by 9 litres every minute (x).

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3 years ago

A hungry college student just finished eating a large cheese and pepperoni pizza from Doug's Pizza Palace and felt there wasn'

Zepler [3.9K]

Answer: 83

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm E$

Given : The student obtained the following 95% confidence interval (in grams) for the population mean, (862,1028).

Here,

Lower limit of the confidence interval : $\overline{x}-E=862$ (1)

Upper limit of the confidence interval : $\overline{x}+E=1028$ (2)

Subtracting (1) from (2) , we get

$2E=166\\\\\Rightarrow\ E=\dfrac{166}{2}=83$

Hence, the margin of error = 83

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4 years ago

Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a. If one wom

Zarrin [17]

Answer: a) 0.5636 b) 0.7881

Step-by-step explanation:

We assume that women’s heights are normally distributed .

Let x be the random variable that represents the shoe sizes.

Also, The population mean = $\mu=\text{63.6 inches}$ ; Standard deviation: $\sigma=\text{2.5 inches}$

a) Formula for z:-

$z=\dfrac{x-\mu}{\sigma}$

Put x= 64, we get

$z=\dfrac{64-63.6}{2.5}=0.16$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(z$

Hence, the probability that her height is less than 64 inches = 0.5636

b. Sample size : n= 25

Then , the formula for z :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Put x= 64, we get

$z=\dfrac{64-63.6}{\dfrac{2.5}{\sqrt{25}}}=0.8$

Then, the probability that they have a mean height less than 64 inches.:_

$P(z$

Hence, the probability that they have a mean height less than 64 inches. =0.7881

7 0

3 years ago

Read 2 more answers