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3 years ago

This question is in "Real Numbers" Find: −24÷ 4 5

Mathematics

2 answers:

jolli1 [7]3 years ago

4 0

Yea the answer is negative 30

Oliga [24]3 years ago

3 0

The answer is -0.533333

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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

The graph of f(x) = x3 + x2 - 9x - 9 is shown.

AysviL [449]

Answer:

-1, 3, -3

Step-by-step explanation:

I don't see the graph, but you can solve by factoring:

$x^3+x^2-9x-9=0\\x^2(x+1)-9(x+1)=0\\(x+1)(x^2-9)=0\\(x+1)(x+3)(x-3)=0$

By the factor theorem, the solutions of f(x) are -1, 3, and -3.

6 0

3 years ago

Read 2 more answers

Can someone please help with this because I don’t understand if and I’ve tried most answers

irina1246 [14]

Answer:

The width measures 2.5 cm

Step-by-step explanation:

Area of triangle = Area of rectangle

1/2 bh = wh

1/2(5)(6) = w(6)

1/2(30) = 6w

15 = 6w

15 ÷ 6 = w

2.5 = w

5 0

4 years ago

Read 2 more answers

What is the radius of a cylinder with a height of 5 inches and volume of 62.8in^3 ?

never [62]

Square root 62.8. Which will give you 7.9.
7.9 divided by pi times 5.
7.9 divided by 15.7.
The radius would be 1.9 if left as a decimal, but rounded to the whole number would be 2.
Hope this helps and answers your problem!!!

6 0

3 years ago

Evan purchases a board game that is regularly priced at $19.95. It is on sale for 40% off. What is the sale price of the board g

stiv31 [10]

19.95 × 0.40 = $7.98.

4 0

3 years ago