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3 years ago

Approximate the square root of 500 to the nearest tenth. Show your work.

1 answer:

4 0

$\sqrt{500} \rightarrow \sqrt{5 * 10 * 10} \rightarrow 10\sqrt{5}$ This is an exact answer. the answer will be a bit larger than 20

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If the y-intercept of the function y=4x-7 were increased by 10 what would be the equation of the new function

Sonja [21]

The equation would be:
$y = 4x + 3$

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3 years ago

Read 2 more answers

(x+16)²=12 plz help me and show work

Readme [11.4K]

Answer:

The answer is $x=-16$ ± $2\sqrt{3}$ in exact form or $x=-12.535898$ , $x=-19.464102$ in decimal form.

Step-by-step explanation:

To solve this problem, start by moving all terms to the left side of the equation and simplify. Simplify the equation by subtracting 12 from both sides of the equation and squaring $x+16$ , which will look like $x^{2} +32x+256-12=0$ . Next, simplify the equation again, which will look like $x^{2} +32x+244=0$ .

Then, use the quadratic formula to find the solutions. The quadratic formula looks like $\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}$ .

For this problem, the quadratic variables are as follows:

$a=1$

$b=32$

$c=244$

The next step is to substitute the values $a=1$ , $b=32$ , and $c=244$ into the quadratic formula and solve. The quadratic formula will look like $\frac{-32(+-)\sqrt{32^2-4(1*244)} }{2*1}$ . To simplify the equation, start by simplifying the numerator, which will look like $x=\frac{-32(+-)4\sqrt{3} }{2*1}$ . Then, multiply 2 by 1 and simplify the equation, which will look like $x=-16(+-)2\sqrt{3}$ . The final answer is $x=-16$ ± $2\sqrt{3}$ in exact form. In decimal form, the final answer is $x=-12.535898$ , $x=-19.464102$ .

6 0

2 years ago

Y is directly proportional to x.

djyliett [7]

Answer:

Step-by-step explanation:

Did you find the answer

3 0

2 years ago

Which method do you prefer to use to find sums- count by tens and ones, use compatible numbers, or use friendly numbers and adju

elena-s [515]

Count by tens and ones.

5 0

2 years ago

peter and his four brothers combined all of their money to buy a video game. if 20%of the total money is peters and $12.00 of th

Tamiku [17]

Answer:

60$ (b)

Step-by-step explanation:

we know that 20% of the total is peters - and peter has 12 dollars. We know that 20% 5 times gets us to 100%. So we multiply 12 by 5 to get a total answer of 60$

5 0

3 years ago