This probability distribution shows the
typical grade distribution for a Geometry
course with 35 students.
Grade
А
B
C D
F
Frequency 5
10
15
3
2
Find the probability that a student earns a
grade of A, B, or C.
p = [?]
Enter a decimal rounded to the nearest hundredth.

Answer:

It is not possible to add them together

Step-by-step explanation:

Since you dont know what x is, you cannot add it to 60

The formula to find the distance between two points is:

d = √[(x2 − x1)² + (y2− y1)²]

distance between (3,4) and (21,4) = 18 cm

distance between (21,4) and (12,16) = 15 cm

distance between (12,16) and (3,4) = 15 cm

height = point in half of the base and the the top point so its (12,16) and (12,4) and the distance between them = 12

triangle perimeter = is the sum all sides

= 48 cm

Triangle area = 0.5 * base * height

= 0.5 * 12 * 18 = 108 cm²

Answer:

[tex]{ \tt{rx - st = r}}[/tex]

» Collect like terms, r terms on the left hand side by subtracting r from both sides and adding st to both sides

[tex]{ \tt{(rx - st) { \green{ - r + st }} = r{ \green{ - r + st}}}} \\ { \tt{rx - r = st}}[/tex]

» On the left hand side, factorise out r

[tex]{ \tt{ \green{r(x - 1)} = st}} \\ \\ { \boxed{ \tt{ \blue{ \: r = \frac{st}{x - 1} }}}}[/tex]

Answer:

Step-by-step explanation:

Each central angle represents a side of the polygon.

The number of sides is:

We know in a circle the centre angle is 360°

So number of sides of polygon

[tex]\\ \sf\longmapsto \dfrac{360}{40}[/tex]

[tex]\\ \sf\longmapsto \dfrac{36}{4}[/tex]

[tex]\\ \sf\longmapsto 9[/tex]

Using simple interest, it is found that:

Simple interest is used when there is a single compounding per time period.

The interest after t years in is modeled by:

[tex]I(t) = Prt[/tex]

In which:

In this problem:

Then:

[tex]I_1 = 0.07P_1[/tex]

[tex]I_2 = 0.08P_2[/tex]

Considering [tex]P_1 + P_2 = 10000 \rightarrow P_2 = 10000 - P_1[/tex]:

[tex]I_2 = 0.08(10000 - P_1)[/tex]

Considering [tex]I_1 + I_2 = 780 \rightarrow I_2 = 780 - I_1[/tex]:

[tex]780 - I_1 = 0.08(10000 - P_1)[/tex]

Considering [tex]I_1 = 0.07P_1[/tex]:

[tex]780 - I_1 = 0.08(10000 - P_1)[/tex]

[tex]780 - 0.07P_1 = 0.08(10000 - P_1)[/tex]

[tex]0.01P_1 = 20[/tex]

[tex]P_1 = \frac{20}{0.01}[/tex]

[tex]P_1 = 2000[/tex]

And:

[tex]P_1 + P_2 = 10000[/tex]

[tex]2000 + P_2 = 10000[/tex]

[tex]P_2 = 8000[/tex]

Then:

You can learn more about simple interest at https://brainly.com/question/25296782

Answer:

C. $69,000

Step-by-step explanation:

just did it on the test

Answer:

the answer to your question is 37.

Step-by-step explanation:

all you need to do is add up all of the sides

Answer:

What's the difference between a number track and a number line? A number track is a sequence of numbers, each inside its own square. ... Whereas, a number line is where the numbers are attached to markers on a line. This method of addition / subtraction comes later.

Answer:

The second graph

Answer:

Step-by-step explanation:

Khala plots a point at (-1, -3.5).

Once on the 2nd graph, you'll see that it's graphed on (-1, -3.5).

Your answer is Graph B.

Answer: Yes

Step-by-step explanation:

Most fractions can be simplified into smaller fractions, while some are in it's simplest form. When putting a bit in its simplest form it is much easier to compare to other fractions  

What I did first tried to simplify all the factions, starting with 1 1/2.

After looking at 1 1/2, I can see that it is in its simplest form.

Then looking at 1 2/4 I can see that it can be simplified into 1 1/2.

Lastly looking at 1 3/6 I can see that it can be simplified into 1 1/2.

Answer:

40 yd^2

Step-by-step explanation:

Add the square at the bottom to make one large rectangle. Subtract the square not included from that area to get the figure shown (see attachment).

Answer:

$325

Step-by-step explanation:

Answer:

$325

Step-by-step explanation:

if the refrigerator has been marked UP by 25%, this means that $406.25 is 125% of the original price (the original price being 100%).

Therefore, divide 406.25 by 125 to find the cost per 1%, then multiply by 100 to find the original price.

(406.25 ÷ 125) x 100 = 325

Answer:

5/6 is greater

Step-by-step explanation:

Fill in the blanks with the fractions 3/4 and 5/6. Simply transmit their denominators to other fractions while altering their location to cross multiply them ( numerator should be on same side e.g the fractions with numerator 3 is on the left side, so it should be there only).

Answer: I know simplified it is  -x^2 + 8x + 1

The degree of the simplified expression is 2.

It is a monomial

I am almost positive it is constant.

Hope this helped

:D

Step-by-step explanation: Ps. Sorry if anything is incorrect, math is my worst subject but I am pretty sure everything is correct.

Answer:

he stayed 8 hours and 35 minutes

Step-by-step explanation:

15 -7 =8

45-10=35

Answer:

D, E.

Step-by-step explanation:

Simplify the expression inside the parentheses:

[tex]3(23 + 18) < 6a[/tex]

[tex]3(41) < 6a[/tex]

Multiply:

[tex]123 < 6a[/tex]

Substitute each value provided for a:

Opt A. 123 < 6(18) = 123 < 108. Incorrect option.

Opt B. 123 < 6(19) = 123 < 114. Incorrect option.

Opt C. 123 < 6(20) = 123 < 120. Incorrect option.

Opt D. 123 < 6(22) = 123 < 132. Correct option.

Opt E. 123 < 6(24) = 123 < 144. Correct option.

Answer:

A=  B=17.3

Step-by-step explanation:

First replace A with 2B-8:

2B - 8 + B = 44

Next simplify:

3B - 8 = 44

44+8=3B

52 = 3B

B = 52/3

B= 17.3

Now find A:

2B-8=

2 x 17.3 -8=

34.6 - 8=

26.6

I hope this helps :)

Answer: dont know just search it up

Answer:

Let x equal the amount of time required for the second press to complete the job on its own.

The second press then operates at a rate of 1/x of the job per hour.

The two presses work together at a rate of 1/2 of the job per hour.

And the first press operates at a rate of one-sixth of the job per hour.

As a result, our equation to solve is:

1/6+1/x=1/2 multiply each term by 6x x+6=3x subtract x from each side x-x+6=3x-x group like terms together

2x=6 multiply both sides by 2 x=3 the number of hours required for the second press to finish the job

CK

1/6+1/3=1/2

1/6+2/6=1/2\s3/6=1/2

1/2=1/2\salso\s(1/6)*2=1/3\s(1/3)*2=2/3\s2/3+1/3=1 (Only one job)

1=1

Answer:

2823908

Step-by-step explanation:

Answer: D

Step-by-step explanation: when u reflect once it lands in the top right then again bottom right

Answer:

I think its 20 units but I'm unsure

Step-by-step explanation:

Answer:

volume of this cube is 512 feet³

Step-by-step explanation:

cubic volume = a³   here a is the side length

  here the side length is 8 feet

so, volume  =  8³ = 512 feet³

As it is written this question isn't very clear, and I'm not positive that the entire thing can be answered. I don't know where point R is. Is there a picture that goes with this problem? If so, maybe that would make it more clear. What I can do is show you how to solve for x. While I don't believe this is the final answer, I believe it is a step toward the right answer. We know what ray QS bisects angle PQT. If you draw out angle PQT and ray QS you can see that angle PQS is congruent to angle SQT. Because of the definition of angle bisector. This also means that angle SQT is half of PQT. Because of this we know that we can set the measure of PQT equal to 2 times the measure of SQT. So we can set up and solve the following equation as such:

2(8x-25) = 9x +34

16x - 50 = 9x +34

7x -50 = 34

7x = 84

x = 12

Again I this doesn't seem to be your final answer. To find the answer the measures of each angle you're going to want to plug 12 in for x for one of the angles. So I'll do it for angle SQT.

8(12) - 25

96 -25

71

So the measure of angle SQT should be 71. Therefore since QS bisects PQR, the measure of angle PQS should also be 71. The measure of PQT should be double that which makes it 142. I'm not positive that this is all the problem is looking for, but I think that's most of it. Hope this helps!

Answer:

x=12

Step-by-step explanation:

1. 3/4(2x-16)=1/3(x+6)

2. 3/2x-12=1/3x+2

3. 3/2x-1/3x=2+12

4. 7/6x=14

5. x = 12

Answer:

Left 3, down 3

Step-by-step explanation:

Moves to the left 3 and goes down 3

Just graph that on desmos and then use desmos as a refernece to draw your graph

[tex]\\ \tt\hookrightarrow \theta=sin^{-1}(0.7071)[/tex]

[tex]\\ \tt\hookrightarrow \theta=44.99°[/tex]

Fact about sine(sin)

[tex]\\ \tt\hookrightarrow Sin\theta=\dfrac{Perpendicular}{Hypotenuse}[/tex]