Shana has three black pens, two red pens, and four blue pens in her book bag. Shana randomly chooses a pen from her book bag without looking. What is the probability that the pen is red or blue?

A. 2/3
B. 2/9
C. 4/9
D. 3/9

Answers

Answer 1
Answer b seems like the obvious answer but i don’t think it is
Answer 2

3 Black Pens, 2 Red Pens, 4 Blue Pens

Should be 6/9 but since that's not an option I'd try  D but I could be wrong I just thought I'd try an help!

If it didn't I'm sorry

or B & C if you can choose 2 answers!


Related Questions

Help please! All guesses get reported! Answer gets brainliest!

Answers

Answer:

A - 36 in.

b - 8

Step-by-step explanation:

A - You marked all of it right! 10 + 10 + 10 + 6

B - The teeth are only on half of the circle that hit the chain. 10 inches of chain for the big wheel, so 1/2 of 10 is 5. Same thing for the little wheel, 1/2 of 6 is 3, and 5+3 = 8, so about 8!

A: 36 in
b: 8
uhm yea so they can get brainliest

I NEED HELP. What is the answer?

Answers

Answer:

B

Step-by-step explanation:

Here’s what B has:

Min: 24

Q1: 27

Median: 31

Q3: 33

Max: 34

Although Choice A and B were really close with their five number summaries, out of the two of them, only B had a maximum value of 34, like the one in the box plot shown above.

can somebody find the volume of the cone on #2?
thank you!!

Answers

Answer:

[tex] 4,220.16 \: {units}^{3} [/tex]

Step-by-step explanation:

Diameter of cone = 24 units

Radius of cone (r) = 24/2 = 12 units

Height of cone (h) = 28 units

[tex]V_{cone} = \frac{1}{3} \pi {r}^{2}h \\ \\ = \frac{1}{ 3} \times 3.14 \times {(12)}^{2} \times 28 \\ \\ = \frac{1}{3} \times 3.14 \times 144 \times 28 \\ \\ = 3.14 \times 1,344 \\ \\ = 4,220.16\: {units}^{3} [/tex]

(HELP MEH FOR BRAINLY! ITS ONLY MULTIPLE CHOICE YALL)

Answers

Answer:

option (1)

Step-by-step explanation:

f(x) - g(x)

= 5x² - 2x + 7 - (- 2x² + 6x + 3) ← distribute parenthesis

= 5x² - 2x + 7 + 2x² - 6x - 3 ← collect like terms

= 7x² - 8x + 4

Preform the indicated operation. Be sure the answer is reduced.

Answers

The answer is the last one
2x+1
——-
X-8

Answer:

D. [tex]\frac{2x+1}{x-8}[/tex]

Step-by-step explanation:

[tex]\frac{x+1}{x-8} - \frac{x}{8-x} = \\\\\frac{x+1 + x}{x-8} = \\\\\frac{x+1}{x-8} +\frac{x}{x-8} =\\\\\frac{x+1+x}{x-8} =\\\\\frac{2x+1}{x-8}[/tex]

Correct choice is D

A rectangle is 12 cm long and 8 cm broad.
The length and breadth of the rectangle are
both increased by the same amount, dcm.
If the area of the rectangle is now 221 cm,
find the value of d. with a digram​

Answers

Answer:

17

Step-by-step explanation:

because 17 is the mulitple

Proving That All Circles Are Similar give: cicrcle x with radius r and circile y with radius s prove: circle x is similar to circle y

Answers

Answer:

Two shapes are similar when they have the same shape while their sizes may be the same or different

Therefore, two similar shapes are shapes that have a relationship such that the dimensions of one of the shapes can be obtained from the dimensions of the other shape by multiplying by a scale factor

All circles have the same shape and are defined by their center and radius

Given circle with center at 'x' and radius 'r' and circle with center 'y' and radius 's', then there exist a scale factor a = s/r such that we have;

r × a = s

Where a = s/r, we get;

r × s/r = s

We can therefore, obtain a circle with with the same size as the circle with center 'y' and radius 's' by multiplying the radius of the circle with center at 'x' and radius 'r' by a

Therefore the circle with center at 'x' and radius 'r' is similar to the circle with center 'y' and radius 's'

Step-by-step explanation:

Just did it! <3

Hope this helps!

What is the length of AC?

Answers

Answer:

2nd option

;)

I did this before-

Step-by-step explanation:

What is the likelihood that a point chosen inside the square will also be inside the circle ?It Chose one : A. is impossible ,B. it is unlikely, C it is likely D. it is certain

Answers

Answer:

C. It is likely

Step-by-step explanation:

Given

See attachment for diagram

For the square.

Let

[tex]Length = L[/tex]

So, the area is:

[tex]Area = Length^2[/tex]

[tex]A_1=L^2[/tex]

The side length of the square equals the diameter of the circle.

So:

[tex]diameter (d) = L[/tex]

The radius is:

[tex]r = \frac{1}{2}d[/tex]

[tex]r = \frac{1}{2}L[/tex]

The area is:

[tex]Area = \pi r^2[/tex]

[tex]A_2 = \pi * (\frac{1}{2}L)^2[/tex]

[tex]A_2 = \pi * \frac{1}{4}L^2[/tex]

[tex]A_2 = \frac{22}{7} * \frac{1}{4}L^2[/tex]

[tex]A_2 = \frac{22}{28} L^2[/tex]

The likelihood that a point will be common to the square and the circle is:

[tex]Pr = \frac{A_2}{A_1}[/tex]

[tex]Pr = \frac{\frac{22}{28} L^2}{L^2}[/tex]

[tex]Pr = \frac{22}{28}[/tex]

[tex]Pr = 78.57\%[/tex]

The above probability is greater than 50% but less than 100%.

Hence, it is likely

Answer:

C. Likely

Step-by-step explanation:

all the points are in the circle so it's likely to choose a point inside the circle

Determine whether the three side lengths form a triangle. 3,5,7

Answers

Yes. Because the sum of the two small numbers are bigger than the longest side.

3+5 >7


Avery is solving the following equation.
-2[m - 2] = -6
Which equation is equivalent to Avery's equation?
A. – 2m + 4 = -6
B. Im - 2] = -3
C. 2m + 4 = 6
D. Im - 2) = 3

Answers

Answer:

A. – 2m + 4 = -6

Step-by-step explanation:

I should know. I did the question.

Scott's window store made a mosaic for the community center. The mosaic had an 8 × 8 array of different color square tiles. If each tile is 2 2/3 ft long, what is the area of the whole mosaic?

Answers

Answer:

455.1111 feet²

Step-by-step explanation:

Given that :

Array of mosaic = 8 * 8 color square tiles

Length of each tile = 2 2/3 feets long

The length of mosaic = length per tile * Number of array :

2 2/3 feets * 8 = 21.3333 feets

This corresponds to the side length of the mosaic

The Area of the whole mosaic:

Using the area of square formula = s²

Where, s = side length

s = 21.33333 ft²

s² = 21.33333²

s² = 455.1111²

f(x)=4x^2-9x-13 young quadratic formula!

Answers

Answer:

x=13/4 or -1

Step-by-step explanation:

factorize the fraction

(4x^2+4x)(-13x-13)

4x(x+1) -13(x+1)

(4x-13)(x+1)

x=13/4 or x=1

I guess

2x+y=7
5x+y=9
solve the system of equations

Answers

Answer:

x=66

y=-57

Step-by-step explanation:

A rancher’s herd of 250 sheep grazes over a 40-acre pasture. He would like to find out how many sheep are grazing on each acre of the pasture at any given time, so he has some images of the pasture taken by the state department of agriculture’s aerial photography division. Here are three samples of the images.


Sample 1: 4
Sample 2: 1
Sample 3: 9

How do the sample statistics compare to the population mean and standard deviation???

Answers

Answer:

sample 3:9

Step-by-step explanation:

hope this helps

pls mark me branliyest

In one hour a seamstress can sew 48 yards of material. How many yards can she sew in 15 minutes?

Answers

Answer:

12

Step-by-step explanation:

you know there are 4 - 15 minutes parts in 1 hour. so if she can sew 48 yards in 1 hour, divide  48 by 4 =12 yards


24% of the animals at an animal shelter are dogs. About what fraction of the animals at the shelter are
dogs?
About
of the animals at the shelter are dogs.

Answers

Answer:

6/25

Step-by-step explanation:

Answer:

6/25

Step-by-step explanation:

HELPPPPP MEE ITS DUE TODAY pleasseee​

Answers

Angle 2 is 74, angle 1 is 47 ( since vertical angles are congruent), and angle 3 is 69.

1) Mark and Huong are selling flower bulbs for a school fundraiser. Customers can buy packages
tulip bulbs and packages of crocus bulbs. Mark sold 9 packages of tulip bulbs and 1 package of
crocus bulbs for a total of $127. Huong sold 6 packages of tulip bulbs and 6 packages of crocus
bulbs for a total of $186. Find the cost each of one package of tulips bulbs and one package of
crocus bulbs.

Answers

Answer:

Package of tulip bulbs = $12

Package of crocus = $19

Step-by-step explanation:

Let b = cost of a package of bulbs

     c = cost of a crocus package

Mark:   (1)   9b + c = 127          Huong:  (2)   6b + 6c = 186

                          c = 127 - 9b                        6b + 6(127 - 9b) = 186

                                                                      6b + 762 - 54b = 186

                                                                                      - 48b = -576

                                                                                           b = 12

                          c = 127 -9(12)

                          c = 127 - 108 = 19

Nickoy brought some shirts. He paid $12 for each shirt. This can be modeled by the expression 12x. What does x represent

Answers

Answer:

x represents the number of shirts purchased

Step-by-step explanation:

Each time Nick buys a shirt, he has an outlay of $12.  One shirt for $12, two shirts for $24, and so on.  So the amount due for the purchase of x shirts is ($12/shirt)x, where x represents the number of shirts purchased.

What percent of 2.5 is 0.2. Please helllllp. My whole family is trying to figure out this darn problem!

Answers

Answer: 8

Step-by-step explanation: hope this helps

An electrician charged a fee of $45 plus $60 per hour to come to Ed's house and make a repair. How many hours did the repair take if the total bill was $120.

Answers

Answer:

1 hour and 15 minutes

Step-by-step explanation:

$120 - $45 = $75

$75 ÷ $60 = 1.25 hours or and 1 hour and 15 minutes

Here is some more
Find the value of x: 3x−7=8x+23

Answers

Answer: x=6

Step-by-step explanation:

Answer:

x = -6

Step-by-step explanation:

Subtract 3x from both sides to get -7=5x+23.

Subtract 23 from both sides to get -30=5x.

Divide 5 from both sides.

x = -6.

While mike was visiting his sister in arlington,he bought an aquarium that was marked down 60% from an original price of $100 .if the sales tax in Arlington is 5% ,what was the total cost of the arquarium?

Answers

Answer:

The cost of the aquarium was $38

Step-by-step explanation:

I got 60% of 100 and it was 60 so it was $40 but then the sales tax was $2 so I subtracted and got 38

The total cost of the aquarium is the sum of the marked down price and

the sales tax.

The total cost of the aquarium is $42

Reasons:

The known information are;

Original price of the aquarium = $100

The marked down percentage of the aquarium = 60%

The sales tax = 5%

[tex]Mark \ down = \dfrac{Difference}{Current \ selling \ price} \times 100[/tex]

[tex]60 \% = \dfrac{Difference}{100} \times 100[/tex]

Which gives;

The difference in sale = $100 - Marked down price = $60

Marked down price = $100 - $60 = $40

The marked down price = $40

The tax is applied to the marked down price, therefore, we get;

Sales tax = 5% × $40 = $2

The total cost = Marked down price + Sales tax

The total cost of the aquarium = $40 + $2 = $42

Learn more here:

https://brainly.com/question/17852801

https://brainly.com/question/19091415

The school buses at a middle school each hold 38 students. The school has, b, buses.
Write an equation that shows the total number of students, s, that can be carried by all of its buses.

Answers

Answer:

38bs

Step-by-step explanation:

multiply the number of students that each bus can hold by the no of buses 38s×b=38bs

Pls help 10 points pls!

Answers

50 & 52 make the statement true

HOW DO I DO MATH..IM NOT EVEN SMART ENOUGH TO KNOW WHAT 4x6 IS

Answers

Answer:

4*6 is 24

its like 6 circles with 4 dots inside and you just count all the dots or it could be the other way around.

Mhanifa please help i will mark brainliest!

Answers

Answer:

(11)

Rectangle

All interior angles are right angles

Diagonals bisect each other, diagonals are congruent

∠3 = 33°∠1 = ∠5 = 90° - 33° = 57°∠2 = 180° - 2*57° = 66°∠4 = 180° - 66° = 114°

(12)

Rhombus

Diagonals are perpendicular and angle bisectors

∠2 = ∠5 = 53°∠1 = ∠4 = 90° - 53° = 37°∠3 = 90°

Simon wants to earn as many points as possible in one turn in a game. Two number cubes whose sides are numbered 1 through 6 are rolled. He is given two options for the manner in which points are awarded in the turn.

OPTION A: If the sum of the rolls is a prime number, Simon receives 15 points.
OPTION B: If the sum of the rolls is a multiple of 3, Simon receives 12 points.

Which statement best explains the option he should choose?


A. Simon should choose Option B. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options.

B. Simon should choose Option A. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options.

C. Simon should choose Option B. The mathematical expectation of this option is 4 and is the greater mathematical expectation of the two options.

D. Simon should choose Option A. The mathematical expectation of this option is 4 and is the greater mathematical expectation of the two options.

Answers

Answer: b. Simon should chose option a. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options.

Statement B. Simon should choose Option A. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options is correct.

What is probability?

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

The probability that the sum of the rolls is a prime number:

P(sum is prime) = 15/36 =0.416

Expected number of points = 0.416×15 =6.25

Probability that f the sum of the rolls is a multiple of 3,

P(sum of rolls is multiple of 3) = 12/36 = 0.33

Expected number of points = 0.33×12 = 3.96

Thus, statement B. Simon should choose Option A. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options is correct.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ2

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AD = 25
and DC 25, what is the length of BD?

Answers

Answer:

25

Step-by-step explanation:

The required value of altitude BD is 25 units, which is determined by the geometric theorem.

What is the right triangle?

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

As we know that the geometric theorem states that h = √(ab),

where h is the altitude of a right triangle, a and b are the segments formed when the altitude divides the hypotenuse of a right triangle.

We have to determine the value of altitude y

As per the given figure, a = 25, and b = 25

Substitute the values  in the formula, and we get

x = √(25 × 25)

x = √625

x = 25

Therefore, the measure of BD = 25.

Learn more about the right triangle here:

brainly.com/question/6322314

#SPJ2

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