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ser-zykov [4K]
2 years ago
9

1. Determine whether the situation is a permutation or a combination

Mathematics
2 answers:
iVinArrow [24]2 years ago
6 0
1-b cuz its describing numbers
2-A-prmation again
3-7C5 = 7!/(5!2!) = 7*6/2 = 21 so its B
4-792
5-d
 hoped i helped

Lesechka [4]2 years ago
3 0

1) B combination because you are choosing 2 randomly

2) A permutation because you are arranging them in an certain order

3) B 7!/(5!(7-5)!) = 21

4) C 12C7 = 12!/(7!(12-7)!) = 792

5) D 10!/(2!(10-2)!) + 10!/(3!(10-3)!) = 165

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What must be a factor of the polynomial function f(x) graphed on the coordinate plane below?
vesna_86 [32]

Answer:

x+2

Step-by-step explanation:

we know that

To find out the factors of a polynomial, determine the x-intercepts or zeros of the polynomial

Remember that

The x-intercepts of a polynomial are the values of x when the value of the polynomial is equal to zero

In this problem

Looking at the graph

For x=-2, f(x)=0

so

x=-2 is an x-intercept or zero of the polynomial

To find out the factor move the constant to the left side and equate to zero

x=-2

adds 2 both sides

x+2=-2+2\\x+2=0

therefore

The factor is (x+2)

5 0
3 years ago
Read 2 more answers
A book is on sale for $6 off of the regular $24 price. What percent is the discount? [Type your answer as a number.]
sattari [20]

Answer:

14.4

Step-by-step explanation:

You only move one space to the left since it is only one place to the lest with the decimal number .6

*Hope this helps*

8 0
3 years ago
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In a probability experiment, Craig rolled a six-sided die 57 times. The die landed on a number greater than three 36 times. What
Firdavs [7]
57-36=21 times (rolled less than 3)
36:21 →12:7
6 0
3 years ago
V = 1/3 bh for b the base of the cone
ch4aika [34]

Answer:

\huge\boxed{b=\dfrac{3V}{h}}

Step-by-step explanation:

V=\dfrac{1}{3}bh\qquad\text{multiply both sides by 3}\\\\3V=3\!\!\!\!\diagup^1\cdot\dfrac{1}{3\!\!\!\!\diagup_1}bh\\\\3V=bh\qquad\text{divide both sides by}\ h\neq0\\\\\dfrac{3V}{h}=\dfrac{bh}{h}\\\\\dfrac{3V}{h}=b\to \boxed{b=\dfrac{3V}{h}}

6 0
3 years ago
-1/2y=1/2x+5 and y=2x+2
Anettt [7]

I assume this is the intersection of two lines, i.e. -1/2y is (-1/2)y.  Please tell me if it's really -1/(2y).

(-1/2)y=(1/2)x+5

Multiplying both sides by -2

y = - x - 10

The other equation is

y = 2x + 2

We can equate them to find the meet

y = - x - 10 = 2x + 2

-3x = 12

x = -4

y = 2x + 2 = -6

Check:  (-1/2)y=3, (1/2)x+5=3, equal, good

2x+2=2(-4)+2=-6=y, good

Answer: x=-4, y=-6

6 0
2 years ago
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