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3 years ago

7

An experiment involves 30 participants. From these, a group of 4 participants is to be tested under a special condition. How man

y groups of 4 participants are possible?

1 answer:

zheka24 [161]3 years ago

6 0

Answer:

7

Step-by-step explanation:

7*4=28 which is the closest u can get to 30 with out going past it

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Can someone please help?

Pepsi [2]

Answer:

Try working from Right to left

Step-by-step explanation:

That way the exponits will work out.

6 0

4 years ago

There are 4 consecutive even integers that add up to 268. Which integers are they?

xz_007 [3.2K]

Answer:

4n+ 12 = -268, or 4n = -280, or n = -70. This would imply that the four consecutive ODD integers are -70, -68, -66, -64.

Step-by-step explanation:

Hope this helps :)

4 0

3 years ago

Find the area of the circle. Round your answer to the nearest hundredth 3in

FrozenT [24]

Answer:

28.26 square inches

Step-by-step explanation:

Formula for area of a circle:

$A=\pi r^2$

Radius is 3.

$A= \pi (3)^2\\A=\pi 9$

Use 3.14 for pi:

$A = 3.14 * 9 = 28.26\\A=28.26$

The area should be 28.26 square inches.

4 0

3 years ago

Orlando bought a number of hats at equal cost for $500. He sold all but 2 for $540 at a profit of $5 for each item. How many hat

Anna11 [10]

I think that the answer is seven but i’m not sure

6 0

3 years ago

How do you translate the graph of f(x) = x3 left 4 units and down 2 units? Identify the equation of the graph

Marina CMI [18]

Answer:

The correct option is B.

Step-by-step explanation:

The given function is

$f(x)=x^3$

The translation of a function is defined as

$g(x)=f(x+a)+b$

If a>0, then the graph of f(x) shift a units left and if a<0, then the graph of f(x) shift a units right.

If b>0, then the graph of f(x) shift b units up and if b<0, then the graph of f(x) shift b units down.

It is given that the graph of f(x) shifts 4 units left and 2 units down. So, a=4 and b=-2.

$g(x)=f(x+4)+(-2)$

$g(x)=(x+4)^3-2$ $[\because f(x)=x^3]$

$y=(x+4)^3-2$

Therefore option B is correct.

8 0

3 years ago

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