Dana surveyed students in her class. She found that 8 earned an A, 6 earned a B, 4 earned a
C, and 2 earned a D on the last science test. If she randomly surveys one more student from
the class, what is the experimental probability that the student would have earned an A on
the test?
Done
My Progress >

Answers

Answer 1

Answer:

2/5

Step-by-step explanation:

In order to find the probabability, you first need to find your total. So:

A, B, C, D,

8+ 6 + 4 + 2 =

20

Since, 20 is out toal it goes in our denominator

Now since we artrying to find the probability of A then we count the number of students who an A and place that in our denominator

8/20

We simplify

2/5

Answer 2

Answer:

2/5

Step-by-step explanation:


Related Questions

Determine if the triangles are similar. If similar, state how and complete the similarity
statement. If not similar, select N/A.
Are the triangles similar?
How are they similar?
Complete the similarity statement: AYXZ ~
HELP ASAP 15 points

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Answer:

SAS

Step-by-step explanation:

find the equation of the line . PLEASE HELP

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Y=1/2x-3............

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DO NOT ANSWER IF YOU DO NOT KNOW
DO NOT SCAM

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Answer:

1. The Industrial Revolution had many positive effects. Among those was an increase in wealth, the production of goods, and the standard of living. People had access to healthier diets, better housing, and cheaper goods. In addition, education increased during the Industrial Revolution.

3.Socialism is an economic and political system. It is an economic theory of social organization. It states that the means of making, moving, and trading wealth should be owned or controlled by the workers. This means the money made belongs to the workers who make the products, instead of groups of private owners.

6.Under capitalism, you work for your own wealth. ... Socialist systems emphasize equal distribution of wealth among the people. Communism. In a way, communism is an extreme form of socialism.

Step-by-step explanation:

     that's all I know!!

what's the difference between 5 and
[tex]2 \sqrt{5} [/tex]

Answers

the difference between these two are:1. 5 is a rational number but 2√5 is an irrational number.

5 is a rational number and 2_/5 is irrational.

Find the value of the expression.
z + y2
for y = 6 and z = 1

Answers

If if y=6 and z=1 then the equation would be 1+6(2) and that ends up to be 13

Answer:

If this is the question then tis is the answer. Thank you. Hope I was of help.

How many grams of protein will 7 servings provide?

Answers

Answer:

What does the serving consist of?

Step-by-step explanation:

Answer:

it depends on what the servings are

Step-by-step explanation:

Need help with this

Answers

Answer:

The value of x is 25

Step-by-step explanation:

A secant is a line that intersects a circle in exactly two points. When two secants, intersect at a point outside a circle then the measure of the angle formed between them is one-half the positive difference of the measures of the intercepted arcs

In the given figure

→ In circle O

∵ GB and GD intersect it at points F, B, and E, D

GB and GD are secants of circle O

∵ GB and GD intersect outside the circle O at point G

∵ They intercepted arcs EF and BD

→ By using the rule above

m∠G = [tex]\frac{1}{2}[/tex] (m arc BD - m arc EF)

∵ m arc BD = m arc BC + m arc CD

∵ m arc BC = 35° and m arc CD = 100°

m arc BD = 35 + 100 = 135°

m arc EF = x

m∠G = 55°

→ Substitute them in the rule above

55 = [tex]\frac{1}{2}[/tex] (135 - x)

→ Multiply both sides by 2 to cancel the fraction [tex]\frac{1}{2}[/tex]

∵ 110 = 135 - x

→ Subtract 135 from both sides

∴ -25 = -x

→ Divide both sides by -1

25 = x

The value of x is 25

An ornithologist wants to look at the relationship between the breadth of peregrine falcon eggs and the mass of
the falcon chicks that hatch from them. The data show a linear pattern with the summary statistics shown
below:

Answers

Answer:

-44.3+1.9x

Step-by-step explanation:

If l || m, find the value of x.

Answers

Answer:

15

Step-by-step explanation:

(5x + 9)° = 84° (alternate angles)

5x + 9 = 84

5x = 84 - 9

5x = 75

x = 75/5

x = 15

Given the graphs of y = 3x - 1 and y = -2x + 1, determine
which ordered pair is a solution to:
y < 3x - 1
y > - 2x + 1

(-4,2)
(0,4)
(4,2)
(2,-4)

Answers

Answer:

Я могу заплатить, но я никогда не хотел

Победы любой ценой.

Я никогда не хотел, чтобы чья-то грудь была под моей ногой.

Я бы лучше остался здесь с тобой,

Просто остался здесь с тобой,

Но звезда, что высоко в небе, по-прежнему показывает мой путь.

Step-by-step explanation:

Which algebraic rule describes the transformation

Answers

This algebraic rule shows reflection over the y axis

Answer:

-x, y......................

what is 1+1, please answer

Answers

Answer:

Your answer is 2.

Step-by-step explanation:

You use the normal way of adition.

 1

+1

___

 2.

Hope this helps!

Energy from the Sun makes water end up in the ?
(I put math because there is no science)

Answers

Answer:

Clouds

Step-by-step explanation:

Since the heat cause the water to evaporate into water vapors.

There were 5 girls in Ms. Smith’s 6th period class. If 45% of students are girls, about how many boys are in her class?​

Answers

Answer:

5 is 45% of 11.11

Step-by-step explanation:

Southlake Cable charges $50 per month for basic cable and $5 for each premium movie channel. Lakeview Cable charges $41 per month for the same cable package and $6.50 for each premium movie channel. The graph of the equations representing the costs for each company is shown in the graph.

Answers

Answer:

Six movie channels, because 5(6) + 50 = 6.5(6) + 41

Step-by-step explanation:

If f (x) = 4 x - 3, what is f (x)^-1 ?

Answers

Hope this might help

Answer:

Step-by-step explanation:

f(x) = 4x - 3

.

The problem asks you to find f(-1).

.

All that this is telling you to do is to evaluate f(x) when x equals -1. So, just go to the

given f(x) and substitute -1 for every x.

.

Starting with:

.

f(x) = 4x - 3

Find the area of a isosceles triangle having the base x cm and one side y cm

Answers

Answer: xy/2 cm²

Step-by-step explanation:

An isosceles triangle is a triangle that has two sides out of the three sides to be equal. The area of an isosceles triangle is given as:

= 1/2 × base × height

where,

base = xcm

height = ycm

Therefore,

Area = 1/2 × x × y

Area = xy/2 cm²


14. Sharlene bought 4 CDs at the music store. Each cost $14.95.
She was charged 5% sales tax on her purchase. What was
the total cost of her purchase?

Answers

Answer: $62.79

Step-by-step explanation: i got it right on my test

The Gomez family has completed 50% of a trip, They have
traveled 40 miles. How far is the trip?

Answers

Answer: 80 miles

Work: I just did 40 times 2 because they completed half their trip, and they need to complete 40 more miles.

Happy Holidays! :)

Answer: 50 miles

Step-by-step explanation:

What are the coordinates of A after ABC is reflected over the y axis ​

Answers

Answer:

(-8;7) ---> (8;7)

x changes sign. y stays with the same sign

............

The recycling bin for the school is in the shape of a rectangular prism. The bin has a length of 16 inches, a width of 14 inches, and a height of 15 inches. Whatis the volume of the recycling bin?

Answers

Answer:

3150 inches is the volume

Step-by-step explanation:

i hoped this helped

In a month with 31 days, Google featured Doodles on 18 days.What percent of the month was this?Round to the nearest whole percent

Answers

Answer:

58.06%

Step-by-step explanation

TRUST ME

Two sailboats are traveling along the same path away from a dock, beginning from different locations at the same time. John’s boat beings 30 miles from the dock and is 50 miles from the dock after 5 hours. The distance of Roberta’s boat from the dock is represented by the function y = 5x + 25, where x represents time and y represents the distance from the dock.

Which boat was farther from the dock at the beginning, and which traveled more quickly?

A. John’s boat was farther from the dock at the beginning, but Roberta’s boat traveled more quickly.

B. Roberta’s boat was farther from the dock at the beginning, and it traveled more quickly.

C. John’s boat was farther from the dock at the beginning, and it traveled more quickly.

D. Roberta’s boat was farther from the dock at the beginning, but John’s boat traveled more quickly.


Please Help!!!!

Answers

Answer:

c

Step-by-step explanation:

The correct statement is John’s boat was farther from the dock at the beginning, and it traveled more quickly option (C) is correct.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

Two sailboats are traveling along the same path away from a dock, beginning from different locations at the same time.

y = 5x+25

at starting x=0

y = 25 miles away from the dock

x = 5

y = 5×5+25

y = 50 miles

= (50 - 25)/5

= 5

Thus, the correct statement is John’s boat was farther from the dock at the beginning, and it traveled more quickly option (C) is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ5

I need the measure of

Answers

Answer:

measure of WZV angle is 50°

PLEASE HELP ME I DONT UNDERSTAND

Answers

Answer:

[tex]d=4\sqrt{5}[/tex]

Step-by-step explanation:

Write down both endpoint coordinate points:

[tex](-5,-3)(-1,5)[/tex]

Use the distance formula:

[tex]d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2} \\\\(x_{1},y_{1})(x_{2},y_{2})[/tex]

Insert values:

[tex]d=\sqrt{(-1-(-5))^2+(5-(-3))^2} \\\\d=\sqrt{(-1+5)^2+(5+3)^2}[/tex]

Simplify parentheses:

[tex]d=\sqrt{(4)^2+(8)^2}[/tex]

Simplify exponents:

[tex]d=\sqrt{16+64}[/tex]

Add:

[tex]d=\sqrt{80}[/tex]

Find the square root. Find multiples of 80 that are perfect squares:

[tex]16*5=80\\\\\sqrt{16*5}\\\\\sqrt{16}*\sqrt{5} \\\\[/tex]

[tex]d=4\sqrt{5}\\\\d=8.94427190...[/tex]

:Done

2(x-3)-8< -4 I need a explanation and the answer please.

Answers

Answer:

The solution to the inequality is:

[tex]x<5[/tex]

The number line solution graph is also attached below.

Step-by-step explanation:

Given the inequality

[tex]2(x-3)-8< -4[/tex]

Add 8 to both sides

[tex]2\left(x-3\right)-8+8<-4+8[/tex]

[tex]2\left(x-3\right)<4[/tex]

Divide both sides by 2

[tex]\frac{2\left(x-3\right)}{2}<\frac{4}{2}[/tex]

[tex]x-3<2[/tex]

Add 3 to both sides

[tex]x-3+3<2+3[/tex]

[tex]x<5[/tex]

Thus, the solution to the inequality is:

[tex]x<5[/tex]

The number line solution graph is also attached below.

Just need help with 6 please

Answers

Answer:

Congruent, SSS

Step-by-step explanation:

The dashes on the sides of the triangles represent that the corresponding lengths of the triangles are equal in length. Since it is given that all corresponding lengths of the triangles are equivalent, the triangles are congruent by the SSS (side, side, side) test.

Hope this helps :)

3. What is the slope of the line represented by the equation
(-14y) - 7x?
a. -2
b. -1/2
Z
c.
d. 1/2

Answers

Answer:

Slope = -1/2

Step-by-step explanation:

Use y = mx + b to find the slope (m) Write the expression as an equation (-14y)-7x=0. Rewrite in slope-intercept form by removing the parentheses, adding 7x to both sides, dividing each term by -14, then writing in y = mx + b form, which is m=-1/2x. Remove the variable, it becomes your answer of -1/2.

complete the table for each equation.

Help plz

Answers

Answer: (1, -2) (4, -8) (-5, 10) ( 3, -6)

Step-by-step explanation:

You solve all of them by inputting the x value's into the x in the equation

Here:

y= -2(1)   x=1 y= -2

y= -2(4)   x=4 y= -8

y= -2( -5)  x= -5 y= 10

y= -2(3)   x= 3    y= -6

Rewrite the expression without parentheses by using the Distributive Property p(q-r) VERY URGENT!

Answers

Step-by-step explanation:

p(q-r) = pq - pr

Hope it helps

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