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11111nata11111 [884]
2 years ago
12

Leo has 5 black airplanes, 3 blue airplanes, and 4 white toy airplanes in a bin. He will randomly choose 1 toy airplane from the

bin. What is the probability Leo will choose a white toy airplane? *
Mathematics
1 answer:
vesna_86 [32]2 years ago
4 0
Either 1/12 or 4/12 i’m not quite sure
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HELP ME PLEASE I WILL MARK YOU BRAINY THANK U SO MUCH
Mumz [18]

Answer:3

Step-by-step explanation:

8 times 3 times 1/2 =12

2 times 1/2 times 4=4

12/4=3

5 0
3 years ago
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p: If two out of five people use the subway every day, then the probability of a person using the subway is 0.4.
Alexandra [31]

2 divided by 5 = 0.4

 so that statement is true.

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3 years ago
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Your furniture store sells two types of dining room tables. The first, type A, costs $210 and you make a $21 profit on each one.
zimovet [89]

<u>Answer</u>

In order to minimize total cost sell A type 40 numbers and B type 90 numbers

<u>Solution</u>

furniture store sells two types of dining room tables.  

The first, type A, costs $210 and you make a $21 profit on each one.  

The second, type B, costs $180 and you make a $20 profit on each one.  

We can order no more than 130 tables this month, and you need to make at least $2640 profit on them.

Let x be the number table  Type A sold, type B sold = 130-x

To find the value of x

21x +(130-x)20=2640

solving we get x=40

There are two possibilities

1)

A type sold =40 B type sold = 130 - 40 =90

total cost = 40 x 210 +  90 x 180 = 24600

2)

A type sold =90 B type sold = 130 - 90 =40

total cost = (90 x 210) + (40x180)=26100

In order to minimize total cost, choose first possibility

sell A type 40 numbers and B type 90 numbers

7 0
3 years ago
Question 10: Find the lateral area of the figure below, in square meters.
Vanyuwa [196]

Answer: 5g5

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How do I graph a function based off the unit circle?
sweet [91]
So if you remember what the normal y = sin(x) function looks like (a wave), y = 2 sin(4x) is just changed a little.

The standard format for sine/cosine function
<span>y = a sin<span>(bx− c)</span> + <span>d

a = amplitude, distance from center of the wave to the highest point. This function a = 2 so the height of the sine wave reaches 2 instead of 1.
"c" and "d" shift the graph left/right and up/down respectively. These equal zero so the sine wave is not shifted.

The range (y-values) is then just the amplitude -2 ≤ y ≤ 2

The domain (x-value) is all real numbers because the wave just keeps going on to infinity in both directions.

2π / |b| = period, distance per wave
this equation b = 4
period is then π/2
this is the distance before a wave repeats.

Graph
     x  |  y
-π/8    -2
    0      0
  π/8    2
3π/8   -2
5π/8    2

see the pattern? I'm using the amplitude or peaks and bottoms of the wave y = 2 and -2  then using the x-distance between like points is the period so you add π/2

(π/8 , 2) 
+ π/2
(5π/8 , 2)

Same for the minumums of the wave (y = -2)
(-π/8 , -2)
+ π/2
(3π/8 , -2)

Hope this helps, otherwise there are youtube videos you can watch or try an online graphing calculator like Desmos.com





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7 0
3 years ago
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