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3 years ago

11

How do you find the square root of something?

2 answers:

allochka39001 [22]3 years ago

8 0

Use the squish method. We'll use the square root of 10 as an example.

First, pick out a perfect square that is closest number that is smaller than the selected number.

In this case, this will be the number three. 3*3=9, which is one smaller than 10.

Divide 10 by 3, which is 3.33.. (round if needed)

Average the two numbers, 3.33 and 3. In this case, it is 3.166.. (again, round if needed)

Repeat and divide it by the original number. 10/3.33 is equal to <span>3.1579.

Then, average again. </span><span>The average between 3.1579 and 3.1667 is equal to 10.0001. If you want to be more precise, keep on repeating the process with the numbers.

Remember to check your work! (Also, attached is a guide for the perfect square roots of 1-100.)
</span>

ANTONII [103]3 years ago

5 0

Remember: $a = \sqrt{a}\times\sqrt{a}$

When you square root something, you have to find two same numbers that when multiplied will give you that original number.

Hope that helped :)

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Matthew works at a small electronics store and ears a base salary of 425 each week . He also earns $9 for each hour he works.let

andrew11 [14]

Answer:

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Step-by-step explanation:

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4 years ago

Which of the following is the solution to the equation 64^(z+4) = 1024

Leno4ka [110]

2^(6*(z+4)) = 2^10

6z + 24 = 10
z = -7/3

5 0

3 years ago

What is the solution set of the equation using the quadratic formula? x2+6x+10=0 {−3+2i,−3−2i} {−6+2i,−6−2i} {−3+i,−3−i} {−2i,−4

olga2289 [7]

Answer:

The solution set of the quadratic function $x^{2}+6\cdot x +10$ is $\{-3+i,-3-i\}$ .

Step-by-step explanation:

Let be a second-order polynomial (quadratic function) is standard form and equalized to zero:

$a\cdot x^{2}+b\cdot x + c = 0$

Its roots can be determined by the Quadratic Formula in terms of its polynomial coefficients, which states that:

$x_{1,2} = \frac{-b\pm\sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}$

Given that $a = 1$ , $b = 6$ and $c = 10$ , the roots of the polynomial are, respectively:

$x_{1,2} = \frac{-6\pm \sqrt{6^{2}-4\cdot (1)\cdot (10)}}{2\cdot (1)}$

$x_{1,2} = -3\pm i$

$x_{1} = -3+i$

$x_{2} = -3 -i$

The solution set of the quadratic function $x^{2}+6\cdot x +10$ is $\{-3+i,-3-i\}$ .

8 0

3 years ago

1. David has designed a lawn game that uses a circular center target with alternating gray and

Sholpan [36]

Answer:

Total area of the gray sections of the target is 678 square inches.

Step-by-step explanation:

Given :

Three concentric circles and we have to find the total area of the gray sections.

Area of white circle having radius 1 foot.

⇒ Area of the white circle - Area of the smaller gray circle.

⇒ $\pi R^2-\pi r^2$

⇒ $\pi (R^2-r^2)$

⇒ $\pi (12^2-6^2)$ <em> ...1 foot = 12 inches and 0.5 foot = 6 inches</em>

⇒ $3.14(144-36)$

⇒ $3.14(108)$

⇒ 339.12 square inches

The total area of the gray sections is the area of the bigger gray circle minus the area of the white circle.

Total area of the gray sections:

⇒ $\pi R^2 - 339.12$

⇒ $3.14(18^2) -339.12$ <em> ....where 1.5 foot = 18 inches</em>

⇒ $1017.36-339.12$

⇒ $678.24$ square inches.

≅ 678 square inches.

The total area of the gray sections of the target, to the nearest square inch is 678.

Option C is the right choice.

6 0

3 years ago

WRITE A NUMBER PATTERN FOR 8 STARFISH IF EACH HAD 5 ARMS

Tcecarenko [31]

You would write the number patter like 8*5

5 0

3 years ago