3 years ago

What is abstract algebra

1 answer:

8 0

<span>Abstract algebra is the set of advanced topics of algebra that deal with abstract algebraic structures rather than the usual number systems.</span>

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What is the maximum value of the expression -5x^2 + 100x + 4,000?

Ludmilka [50]

Answer:

4500

Step-by-step explanation:

$x=10$

3 0

3 years ago

2x + 3x + 5 =<br><br>I need the answer asap

madam [21]

In simplified form it is 5x+5

4 0

2 years ago

A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur

ICE Princess25 [194]

Answer:

Option C) 5.62 points

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

$=n-1\\=20-1\\=19$

We have to calculate margin of error for a 95% confidence interval.

Formula for margin of error:

$t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093$

$2.093\times (\displaystyle\frac{12}{\sqrt{20}} )\\\\ =5.6161\approx 5.62$

Thus, the correct answer is

Option C) 5.62 points

4 0

3 years ago

On Monday, Elsbeth’s bank account balance was -$16.75. On Tuesday, she deposited a check for $5.72. On Thursday, she deposited $

koban [17]

Answer:

5.72

Step-by-step explanation:

(-16.75 + 16.75) = 0

0 + 5.72= 5.72

Therefore, the answer is 5.72

4 0

2 years ago

Solve for J: 15(j-3)+3j<45

nata0808 [166]

15(j - 3) + 3j < 45
15j - 45 + 3j < 45
18j < 45 + 45
18j < 90
j < 90/18
j < 5

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2 years ago