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3 years ago

Which equation is graphed on the number line at right ?

Mathematics

1 answer:

Yuki888 [10]3 years ago

5 0

Answer:

D.)|x| + 3 < 6

Step-by-step explanation:

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In a genetics class, 6 students have GREEN eyes, 5 students have BLUE eyes, and 9 have HAZEL eyes. If a single student is picked

mixer [17]

EXPLANATION:

Given;

We are given that in a class there are the following groups of students;

$\begin{gathered} Green\text{ }eyes=6 \\ Blue\text{ }eyes=5 \\ Hazel\text{ }eyes=9 \end{gathered}$

Required;

We are required to calculate the probability that a student selected at random will have Green eyes OR Blue eyes.

Step-by-step solution;

To calculate the probability of an event, we shall use the following formula;

$P[Event]=\frac{Number\text{ }of\text{ }required\text{ }outcomes}{Number\text{ }of\text{ }all\text{ }possible\text{ }outcomes}$

To calculate the probability that a selected student will have green eyes;

$P[green]=\frac{6}{20}=\frac{3}{10}$

To calculate the probability that a selected student will have blue eyes;

$P[blue]=\frac{5}{20}=\frac{1}{4}$

The probability of event A or event B will be the addition of probabilities.

Therefore, the probability that a randomly selected student will have green or blue eyes will be;

$P[G]+P[B]=\frac{3}{10}+\frac{1}{4}$ $P[F]+P[B]=\frac{6}{20}+\frac{5}{20}=\frac{11}{20}$

Therefore,

ANSWER:

$P[G\text{ }orB]=\frac{11}{20}$

6 0

1 year ago

X -- + 8=18 I need help 5

shtirl [24]

Start by subtracting 8 on both sides.

Multiply both sides by 5.

X=50

The answer is 50.

3 0

4 years ago

There are four cars entered into a pinewood derby race. in how many different orders can they cross the finish line, assuming th

artcher [175]

This is a problem of fundamental counting principle. In a sequence of events, the total possible number of ways all events can performed is the product of the possible number of ways each individual event can be performed. So here there is one car in each place so there 4 possible cars to get the 1st place, 3 possible car for the 2nd place, 2 possible cars for 3rd place and 1 for the 4th place. The 4x3x2x1 = 24 different order

4 0

3 years ago

4(2 - 2 + y)= Sorry im bad at math

podryga [215]

Answer:

y = 4

Step-by-step explanation:

Use the distributive property to multiply all terms in the parentheses by 4

You will get (8 - 8 + 4y) = 0

Then, 4y = 0

Divide each side by 4 to get

y = 4