Someone help me with this pls

Answer:

b, 45

Step-by-step explanation:

The spinner shown has eight congruent sections. The spinner is spun 120 times. What is a reasonable prediction for the number of times the spinner will land on an even number?

Before I begin, let's go over probability.

The probability of an event is: (the number of ways something can happen) / (total number of outcomes possible). So, for example, the probability of rolling a one on a die can be found like:

There is 1 way to roll a one, and 6 possible sides, so the probability is 1/6.

And, if we were to roll the die 60 times, we could expect about 1/6 of the times to be a one, so we should expect a one to be rolled 1/6 * 60 = 10 times.

Now, onto the problem.

Each portion is congruent (they all have the same area). Thus, there is a 1/8 chance of landing on 1, a 1/8 chance of landing on 9, etc.

5 sections are odd, while 3 sections are even. So, the chance of landing on an even number is:

(3 ways to land on an even number) / (8 possible outcomes) = 3/8

If there is a 3/8 possibility to land on even, and there are 120 outcomes, we can say that an even number statistically should be rolled 3/8 * 120 times.

3/8 * 120 = 45

Thus, the answer is b, 45 times

Just in case, let's check the answer by finding the number of times we should roll an odd number and adding it to the number of even times and if it adds up to 120, then the answer is correct.

Because there is a 5/8 chance of getting an odd number, there should be about 5/8 * 120 = 75 times that an odd number is spun.

75 + 45 = 120, so the answer is correct.

I hope this helps! Feel free to ask any questions!

Answer:

54 inches^2

Step-by-step explanation:

Answer:

Interest= $423.59

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $6,000

Number of periods (n)= 3 years

Interest rate (i)= 2.3% = 0.023

To calculate the Future Value, we need to use the following formula:

FV= PV*(1+i)^n

FV= 6,000*(1.023^3)

FV= $6,423.59

Now, the interest earned:

Interest= 6,423.59 - 6,000

Interest= $423.59

Answer:

Answer is C

Step-by-step explanation:

Answer:

Rigid transformations can be used to map one polygon onto the others

Step-by-step explanation:

You can only do the above if the polygons are identical, hence congruent

Answer:

B)
A, B, and E.

Answer:

i^32=1

i^25=i

i^86=-1

i^51=-i

Step-by-step explanation:

Follow the Rule of Four of I for this,

i^1=[tex]\sqrt{-1}[/tex]

I^2=-1

I^3=-i

I^4=1

Answer: first one is 1

Second one is i

Third one is -1

Fourth one is -1

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation:

-7x+y=-13

y=3-x

-7x+3-x=-13

x=2

y=3-2

y=1

Answer:

140,470 lilies

Step-by-step explanation:

Answer:

It is linear

Step-by-step explanation:

check graph img

Answer:

3a^2+12a

Step-by-step explanation:

3a(4+a)

3a*4=12a

3a*a= 3a^2

Answer: 10 CD's

Step-by-step explanation:

Given

Tom can  burn a CD in  [tex]\frac{4}{5}\ \text{of an hour}[/tex]

If he has 8 spare hours in the week, he can burn

[tex]\Rightarrow 8\div \frac{4}{5}=\dfrac{8}{\frac{4}{5}}\\\Rightarrow \dfrac{8\times 5}{4}=2\times 5=10\ \text{CD}[/tex]

Answer:

Waves

Step-by-step explanation:

Waves carry energy through empty space or through a medium without transporting matter.

Answer:

It is 58.3% so it is greater than 55%

Answer:

hey thats kinda confusing but im sending this text insted of giving a wrong answer cuz i need points also SUB TO TECHNOBLADE

Step-by-step explanation:

Answer:

y - 3 = 6(x - 8)

Step-by-step explanation:

slope point form :<

Answer:

The answer is -4 ( W - 8 )

I hope this helps you

Answer:

-4(w-8)

at first when you look at it you know you cant add then because 32 have a variable but to get -4w+32 you will have to do -4(w-8)

hope that helped

Answer:

Option (3)

Step-by-step explanation:

Area of a circle is given by the formula,

Area = πr²

Here, r = radius of the circle

Since, radius of the circular trampoline = 8 feet

Area of the cover required for the circular trampoline = π(8)²

                                                                                         = 64π square feet

Therefore, Option (3) will be the answer.

Answer:

v = 14

Step-by-step explanation:

3/2 v = 21 (first multiply 2 on both sides)

3v = 42 (divide by 3 on both sides to isolate the variable)

v = 14 (final answer)

Answer:

bnvn

Step-by-step explanation:

R=8ft

Step-by-step explanation:

Calculate r using the given formula

r = , with Area = 64π

r = ← cancel π on numerator/ denominator

r = = 8

The required value of radius of circle r is 8 ft

From Figure the area of circle is = 64π, we have to find the radius of the circle.

Area of the circle is = π[tex]r^2[/tex]

since

the area of the circle is given = 64π

And,
Radius = √area/π
radius= √64π/π
Radius = √64
Radius = 8 ft

Thus The required value of radius of circle r is 8 ft.

Learn more about circle here:
https://brainly.com/question/11833983

#SPJ2

Answer:

x=3 y=1 is the answer if that is what you were looking for :)

Answer:

x = 3 and y = 1

Step-by-step explanation:

x + y = 4

2x - y = 5

We know x must be greater than y.

Let's try x = 3 and y = 1

3 + 1 = 4

6 - 1 = 5

Answer:

120°

Step-by-step explanation:

The two angles are alternate angles and has same measurement.

Given :

Let, capacity of small bottle is x and large bottle is y.

To Find :

How much does each bottle hold ?

Solution :

For condition 1 :

3x + 4y = 3312   ...1)

For condition 2 :

2x + 4y = 2888  ...2)

Subtracting equation 2) from equation 1), we get :

x = 424

Putting value of x in equation 1) is :

[tex]y = \dfrac{2888 - (2\times 424)}{4}\\\\y = 510[/tex]

Therefore, capacity of small bottle is 424 gram and large bottle is 510 gram.

Answer:

117

Step-by-step explanation: 94 + 23

Answer:

63 and also can I get Brainliest please

Step-by-step explanation:

Answer:

17°

Step-by-step explanation:

6 = 4x

7 = 2x + 34

4x - 2x = 2x

Since 6 and 7 are vertically opposite angles, they have the same angle.

2x = 34

X = 34 ÷ 2 = 17

Step-by-step explanation:

< 6 and < 7 are vertically opposite angles so.

< 6 = < 7

4x = 2x + 34°

4x - 2x = 34°

2x = 34°

x = 17°

Hope it will help :)

Answer:

-12

Step-by-step explanation:

2n - 6 = -30

Add both 6 on each side

2n - 6 + 6 = -30 + 6

2n = -24

Divide 2 on both sides

[tex]\frac{2n}{2} = \frac{-24}{2}[/tex]

n = -12

Answer:

10-16x+56=15x+21

66-16x=15x+21

66-21=15x+16 x

45=31x

x=45/31