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3 years ago

Can someone help me with this math problem

Mathematics

1 answer:

melisa1 [442]3 years ago

6 0

Answer:

A. 5x+5

B. 10x + 13

C. 8x -2

D.3x -8

Step-by-step explanation:

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Im in credit recovery need help now asap pls

Alenkasestr [34]

The correct answer for this equation is x^4 + 6x^3 - 12x - 72<span>

You just square root the numbers in the square root sign and take away the square root. Then you simply from top to bottom. Hope this helps :D
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8 0

3 years ago

Which is a counterexample that disproves the conjecture? After completing several multiplication problems, a student concludes t

Dahasolnce [82]

When you make the product of a binomial of the kind x + a times other binomial that is of the kind x - a, you obtain another binomial (not a trinomial), so any example with that form will be a counterexample that disproves the conjecture:

(x + a) * (x - a) = x^2 - a^2

For example, (x +3) * (x - 3) = x^2 - 9. So, not always the product of two binomials is a trinomial.

5 0

3 years ago

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm.

Vesnalui [34]

Answer:

After how many years is the fish population 100?

x=3.97 years

Step-by-step explanation:

The fish population increases by a factor of 1.5 each year. We have the equation that represents this situation

$f (x) = 20 (1.5) ^ x$

Where x represents the number of years elapsed f(x) represents the amount of fish.

Given this situation, the following question could be posed

After how many years is the fish population 100?

So we do $f (x) = 100$ and solve for the variable x

$100 = 20 (1.5) ^ x\\\\\frac{100}{20} = (1.5)^x\\\\ 5= (1.5)^x\\\\log_{1.5}(5) = log_{1.5}(1.5)^x\\\\log_{1.5}(5) = x\\\\x =log_{1.5}(5)\\\\x=3.97\ years$

Observe the solution in the attached graph

8 0

3 years ago

Which measurement is the best estimate for the height of a kitchen counter?

Schach [20]

4. 0.9m

Explanation:
0.9mm is smaller than a lego counter top.

0.9cm is a Lego counter top, actually 0.9cm is still probably smaller.

0.9 kilometers is 900 meters so uh… 2700 ft tall? I don’t think your counter top is taller than Godzilla.

6 0

3 years ago

Evaluate

Anvisha [2.4K]

Answer:

-1

Step-by-step explanation:

In many cases, the simplified expression is not undefined at the point of interest.

$\dfrac{\left(\dfrac{1}{\sqrt{x}}-1\right)}{\sqrt{x}-1}=\dfrac{\left(\dfrac{1-\sqrt{x}}{\sqrt{x}}\right)}{\sqrt{x}-1}=\dfrac{-1}{\sqrt{x}}$