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murzikaleks [220]
3 years ago
13

a jar contains 30 red, 40 blue, and 50 white buttons. you pick one button at random, find the probability that it is red or blue

Mathematics
2 answers:
abruzzese [7]3 years ago
5 0

Answer:

0.58 rounded to the nearest hundredths

Step-by-step explanation:

30+40+50=120

now add red+blue

30+40=70

70/120

pls mark me brainliest

Afina-wow [57]3 years ago
4 0

Answer: 25/120

Step-by-step explanation: if you do a proportion with x over 100 alongside 30 over the total 120 then solve. (30 times 100 divided by 120 to solve for x) you get 25!

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Y=x3 is that a function?
kotykmax [81]

Answer:

yes

Step-by-step explanation:

y(x) is even or odd according as y(−x)=±y(x) . Here, #y(-x)=-(-x)^3=-(-x^3)=x^3=-y(x). So, y is an odd function of x.

5 0
3 years ago
You have a right circular cone of height 1530 mm and volume 2.2 x 104 in3 . Calculate the base diameter of the cone.
Alja [10]

Answer:

  37.35 in

Step-by-step explanation:

The volume of a cone is given by the formula ...

  V = (π/3)r²h

where r is the radius of the base and h is the height. We want to find the diameter of the base, so we can rewrite this in terms of diameter and solve for d. Please note that the height is given in millimeters, not inches, so a conversion is necessary.

  V = (π/3)(d/2)²h

  12V/(πh) = d²

  d = 2√(3V/(πh)) = 2√(3(2.2×10^4 in^3)/(π·1530 mm/(25.4 mm/in))

  = 2√(1.6764×10^6/(π·1.53×10^3) in^2)

  d ≈ 37.35 in

The base diameter of the cone is about 37.35 inches.

4 0
3 years ago
15 = 3n + бр.<br> help!
Alla [95]
15 is the awnser too this one
3 0
3 years ago
Find the value of x 7x-8=8x
sammy [17]
Calculate like terms:
7x-8=8x
7x-8x=8
-x=8
-x/-1=8/-1
x=-8



6 0
3 years ago
Is the equation true, false, or open?<br> 5x+2=6x+11
Sliva [168]
This equation is true if x=9 and otherwise that equation is false..
6 0
3 years ago
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