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Law Incorporation [45]

3 years ago

14

A science teacher needs to choose 4 students from a class of 20 to go to the library to do some research. How many different gro

ups can be selected?
A.) 3,060

B.) 104,976

C.) None are correct

D.) 73,440

1 answer:

densk [106]3 years ago

8 0

The number is (20 x 19 x 18 x 17) / (4 x 3 x 2). That's 4,845 . None of the choices is correct.

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Find the area of a circle with radius of 6<br> inches. (Use 3.14 for 1.)

Schach [20]

Answer:

$\pi {r}^{2}$

$\pi {6}^{2} \\ 113.1$

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3 years ago

Consider the diagram below which of the following represents the values of x and y?

V125BC [204]

Please show a picture of the diagram.

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2 years ago

Which interval is represented by the graph

kakasveta [241]

Answer:

you are correct the answer is c

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3 years ago

Hi. Please I need help with these questions.

ElenaW [278]

Answer:

Q 12 roots of the equation

$2x^{2} -6+1=0 \\= (x-\frac{\sqrt{10} }{2})(x+\frac{\sqrt{10} }{2})\\$

∝ = $\frac{\sqrt{10} }{2}$

β = $-\frac{\sqrt{10} }{2}$

no matter if u oppose the root

(i) 2( $\frac{\sqrt{10} }{2}$ ) $(-\frac{\sqrt{10} }{2} )^{2}$ +2 $(\frac{\sqrt{10} }{2} )^{2}$ ( $-\frac{\sqrt{10} }{2}$ )+2(

(ii)( $(\frac{\sqrt{10} }{2})^{2}$ - 3 ( $\frac{\sqrt{10} }{2}$ )( $-\frac{\sqrt{10} }{2}$ ) + ( $(-\frac{\sqrt{10} }{2})^{2}$ ) = $\frac{25}{2}$

Q 13 roots of equation

$4x^{2} -3x-4=0\\\alpha = -0.693\\\beta = 1.443$

the roots of the second equation are

x1 = 1/3(-0.693) = -0.231

x2 = 1/3(1.443) = 0.481

the equation is

(x+0.231)(x-0.481)=0

$x^{2}-\frac{1}{4} x-\frac{1}{9}$

4 0

3 years ago

What the volume of the soild

Montano1993 [528]

Answer:

A.264

Step-by-step explanation:

((Area Of triangle*height)=Volume

Area of triangle is the base of the triangle multiplied by height of triangle divided by 2

((8*6)/2)*11=264

8 0

1 year ago