3 years ago

Can somebody solve this question?

Mathematics

1 answer:

lawyer [7]3 years ago

8 0

Answer:

3 is the answer because it's value only add by the 3

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The ratio of the circumference of two circles in 3:2. The radius of the smaller circle is 8 in. What is the radius of the larger

Karo-lina-s [1.5K]

If it’s a ratio of 3:2, it’s basically giving you two separate expressions, which are 3x and 2x. Use 8 for the smaller expression: 2x=8 and x=4. Plug in x to larger expression: 3(4)=12. Radius of larger circle is 12.

4 0

2 years ago

Select the system of linear equations that has the solution (-6, 0).

xxTIMURxx [149]

Answer:

• x+2y=-6

• x-2y=-6

Step-by-step explanation:

Try the solution in the equations and choose the set of equations that is true.

___

A. -6+0 ≠ 0 . . . not this system

B. -6 +2·0 = -6 . . . true

-6 -2·0 = -6 . . . true . . . . . this system has solution (-6, 0)

C. -6 -6·0 ≠ 1 . . . not this system

D. 4(-6)+3·0 ≠ -18 . . . not this system

3 0

3 years ago

If x^2=20 what is the value of x will give brainliest for answer

Schach [20]

Answer:

x² - 20 = 0

Using the quadratic formula

$x = \frac{ - b± \sqrt{( {b})^{2} - 4ac } }{2a}$

a = 1 b = 0 c = -20

So we have

$x = \frac{ - 0 ± \sqrt{ {0}^{2} - 4(1)( -20)} }{2(1)} \\ \\ x = \frac{± \sqrt{80} }{2} \\ \\ x = \frac{±4 \sqrt{5} }{2} \\ \\ \\ x = ±2 \sqrt{5} \\ \\ \\ x = 2 \sqrt{5} \: \: \: or \: \: \: x = - 2 \sqrt{5}$