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Fudgin [204]
3 years ago
9

There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and

then it is replaced. Another marble is taken at random. What is the probability of exactly 1 red?
Mathematics
1 answer:
Ivanshal [37]3 years ago
8 0

Answer:

There is an 25% chance of getting a red marble

Step-by-step explanation:

4+3+5=12

3/12=.25

put the decimal over two spaces and you get 25%

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Circle the equations that represent quadratic functions a. y=3x+1 b. y=x^2+3 c. y=x^3-3 d. x^2+3y=8
Elena L [17]

Answer:

B. y=x^2+3 \\\\D.$ $x^2+3y=8

Step-by-step explanation:

A quadratic function is a function in which the highest power of the unknown variable is 2.

Formally, a quadratic function is defined as a function of the form:

f(x)=ax^2+bx+c, a\neq 0

From the given options, only B and D has the highest power as 2. Therefore, the equations that represent quadratic functions are:

B. y=x^2+3 \\\\D.$ $x^2+3y=8

4 0
3 years ago
Scott is ordering 6 bags of cat food from canada. each bag has a mass of . to determine the shipping costs, scott needs to know
OLEGan [10]

The weight of the cat food in pounds is 99 lbs.

<h3>What is a pound?</h3>

The pound, sometimes known as pound-mass, is a unit of mass that is used in both the British imperial and American customary measurement systems.

<h3>How do we convert kg to pounds?</h3>

You multiply a weight by the conversion factor 2.2046 to change a mass measurement from kilograms (kg) to pounds (lbs).

Given that,

Mass of each bag = 7.5 Kg.

Number of bags bought = 6

Firstly, we need to find how much the cat food weighs:

Total weight of cat food = 6 × 7.5

Total weight of cat food = 45kg

Next, we will require to convert the kg into pounds:

1kg = 2.2lb

45 kg = 45* 2.2

45 kg = 99 lbs

Therefore, the weight of the cat food in pounds id 99lbs.

To learn more about pound, visit:

brainly.com/question/27994061

#SPJ4

3 0
1 year ago
Caden is a bird enthusiast and is trying to estimate the number of hawks living in his region. He traps 23 hawks and tags them.
serious [3.7K]
I believe the answer is 415
PLEASE MARK BRAINIEST!
6 0
3 years ago
Y=1/2x+3 y=5 i need help
Ilya [14]

Answer:

x=4

Step-by-step explanation:

4 0
3 years ago
Abie makes $39,000 a year and spends about $250 each month on entertainment. what fraction of her annual income is spent on ente
tamaranim1 [39]
(250 * 12) / 39,000 = 3000/39,000 which reduces to 1/13 <==

** I multiplied 250 by 12 to get the cost per yr
7 0
3 years ago
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