3 years ago

PLEASE HELP!! (x-7)^3 (x+2)^2 (x-13) <0

Mathematics

1 answer:

ahrayia [7]3 years ago

4 0

X^6<-348 is the answer

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garik1379 [7]

Answer: 7

Step-by-step explanation:

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3 years ago

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Vera took 10 tests over a time of 5 weeks. After 9 weeks this quarter, how many tests will Vera have taken?

seropon [69]

Answer:

Step-by-step explanation:

10 tests = x tests

/ 5 weeks = / 9 weeks

10* 9= x5

90/5= 18

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3 years ago

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Please help me :)) algebra 2! what are the real roots?

irina1246 [14]

Answer:

Step-by-step explanation:

So we have the equation:

$3(x-4)^\frac{4}{3}+16=64$

First, let's subtract 16 from both sides:

$3(x-4)^\frac{4}{3}=48$

Now, let's divide both sides by 3:

$(x-4)^\frac{4}{3}=16$

Remember that with fractional exponents, we can move the denominator into the root position. Therefore:

$(\sqrt[3]{x-4})^4=16$

Let's take the fourth root of both sides. Since we're taking an even root, make sure to have the plus-minus symbol!

$\sqrt[3]{x-4} =\pm 2$

Cube both sides. Since we're cubing, the plus-minus stays.

$x-4=\pm 8$

Add 4 to both sides.

$x=\pm 8+4$

Calculator:

$x=8+4\text{ or } x=-8+4\\x=12\text{ or } x=-4$

So, our answer is A.

And we're done!

7 0

3 years ago

If <img src="https://tex.z-dn.net/?f=%5Cfrac%7Ba%7D%7B4%7D%20%3D%20%5Cfrac%7Bb%7D%7B7%7D" id="TexFormula1" title="\frac{a}{4} =

tamaranim1 [39]

Answer:

Step-by-step explanation:

$\frac{a}{4}=\frac{b}{7}\\a=\frac{4b}{7} \\\frac{a-b}{b} =\frac{\frac{4b}{7}-b }{b} \\=\frac{4b-7b}{7b}\\ =\frac{-3b}{7b}\\ =\frac{-3}{7}$

6 0

3 years ago

17 is what percent of 34

Stels [109]

Answer:

50%

Step-by-step explanation:

17/34 = .50

3 0

4 years ago

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