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3 years ago

Et.

Mathematics

1 answer:

kirza4 [7]3 years ago

4 0

Answer:

-$5.50>x>$20

Elena has more than -$5.50 but less than $20.

Step-by-step explanation:

Ok, so the question says that Elena has -$5.50 in her account. That means that she owes someone ( the bank) $5.50.

Elena then mows the lawn which may have paid off her debt. But we don't know that for sure.

All they give us is that Elena has less than $20 in her bank account.

So your answer may look like this:

-$5.50>x>$20

Elena has more than -$5.50 but less than $20.

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The diameter of a circular chip is doubled to use in a new board game. The area of the new chip will be

nikitadnepr [17]

Answer: $A_2=\frac{\pi(2D)^{2}}{4}$

Step-by-step explanation:

1. You have the following formula for calculate the area of the original circular chip:

$A_1=\frac{\pi(D)^{2}}{4}$

Where D is the diameter of the circle.

2. Then, if the diameter of the original circular chip is doubled (2D) to use in a new board game, the area of the new chip can be calculated with the following formula:

$A_2=\frac{\pi(2D)^{2}}{4}$

7 0

3 years ago

Read 2 more answers

(a^3+14a^2+33a-20)\(a+4)

Oksi-84 [34.3K]

Perhaps you meant <span>(a^3+14a^2+33a-20) / (a+4), for division by (a+4).

Do you know synthetic division? If so, that'd be a great way to accomplish this division. Assume that (a+4) is a factor of </span>a^3+14a^2+33a-20; then assume that -4 is the corresponding root of a^3+14a^2+33a-20.

Perform synth. div. If there is no remainder, then you'll know that (a+4) is a factor and will also have the quoitient.

-4 / 1 14 33 -20
___ -4_-40 28___________
1 10 -7 8

Here the remainder is not zero; it's 8. However, we now know that the quotient is 1a^2 + 10a - 7 with a remainder of 8.

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3 years ago

How do you simplifty the square root of 48 times the square root of 3?

Contact [7]

Answer:

$\sqrt{48} \times \sqrt{3} \\ \sqrt{144} \\ 12$

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3 years ago

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function.

alexira [117]

Answer:

b. x = 0 ; (0,4)

Step-by-step explanation:

To quickly solve this problem, we can use a graphing tool or a calculator to plot the equation.

Please see the attached image below, to find more information about the graph .

The equation is:

y=2*x^2+4

We can appreciate that the axis of symmetry corresponds to the y-axis, which is equal to the line x = 0

The vertex corresponds to the minimum point of the function.

V = (0,4)

Correct option: b.

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3 years ago

Lawrence’s father gave him 200 baseball cards. Each week, Lawrence purchases 25 baseball cards to add to his collection.

Ad libitum [116K]

Answer:

Step-by-step explanation:

The dad gave him a one time 200 bonus. Therefore, the 25 is being multiplied per week. Hope this helps!

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3 years ago