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3 years ago

Solve each equation by using the square roots property round to the nearest hundredth if necessary

Mathematics

1 answer:

ZanzabumX [31]3 years ago

7 0

X = -2(5 + (sqrt34)) OR 2((sqrt34) - 5)

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Can someone please explain how to do these?

Pani-rosa [81]

Answer:

First question answer: The limit is 69

Second question answer: The limit is 5

Step-by-step explanation:

For the first limit, plug in $x=8$ in the expression $(9x-3)$ , that's the answer for linear equations and limits.

So we have:

$9x-3\\9(8)-3\\72-3\\69$

The answer is 69

For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value $x=1$ into the simplified expression to get the correct answer. Shown below:

$\frac{x^2+8x-9}{x^2-1}\\\frac{(x+9)(x-1)}{(x-1)(x+1)}\\\frac{x+9}{x+1}$

Now putting 1 in $x$ gives us the limit:

$\frac{x+9}{x+1}\\\frac{1+9}{1+1}=\frac{10}{2}=5$

So the answer is 5

3 0

3 years ago

In the game Yahtzee, players roll five dice. There are 13 rounds per game. In each round, each player can roll the dice up to th

Vinil7 [7]

Answer: 13

Step-by-step explanation: because I have the whole bookanswer duh

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3 years ago

a train travels 304 miles in 4 hours if it continues to travel at the same rate how many miles will it travel in seven and a hal

svlad2 [7]

Answer:

570 miles

Step-by-step explanation:

304/4 is how many miles it travels in each hour and if its 7.5 hours then you multiply that by each mile it takes each hour.

304/4 = 76

76 x 7.5 = 570

5 0

3 years ago

Answer this correct and I will give you extra points.

IRINA_888 [86]

Answer:

he didnt subtract each equations on both sides

5y-6=4y+1

-4 -4

y -6=1

+6=+6

y=7

Step-by-step explanation:

hope that wrk

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2 years ago

Peter is a 40-year-old average income earner. He is ready to start planning for retirement, and plans to make the maximum possib

Bad White [126]

Roth IRA doesn't get you a tax deduction for the contributions, but the earnings grow tax free and you don't pay tax on the withdrawals after retirement. A traditional IRA gives you a tax deduction for the contributions at the time you make them, and the earnings grow tax free, but when you withdraw the money after retirement, you are taxed on it. The idea is that you are hopefully in a lower tax bracket at that point. So its only natural that Roth IRA is the best.

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3 years ago