Evaluate the expression for m = –1.

–21m2 − 11m − 30 =

Answer:

1 -- 3/25

2 -- 1/25

3 -- 4/24

Step-by-step explanation:

To find the probability of a randomly selected person being in any category, divide the amount of people in that category by the total amount of people.

We can find the total amount of people by adding the amount of people with each blood type.

Total = O + A + B + AB = 22 + 20 + 6 + 2 = 50

There are 50 total people in this group. Now we can find the probability of randomly selecting a person from each category.

Probability of type B

There are 6 people with type B blood. The probability of randomly selecting a person from this group is 6/50, or 3/25.

Probability of type AB

There are 2 people with type AB blood. The probability of randomly selecting a person from this group is 2/50, or 1/25.

Probability of type B or AB

We need to find the amount of people who are in either group. There are 6 people with type B blood and 2 people with type AB blood, so 8 people satisfy this criteria. The probability of randomly selecting a person with type B or AB blood is 8/50, or 4/25.

Answer:

c. 6p+2

Step-by-step explanation:

Answer:

C. 6p+ 2

Step-by-step explanation:

9p-3p+2+

=6p+2

You would subtract the 9p and 3p as normal and woud add the 2 at the end.

Hope this helps

PLEASE MARK AS BRAINLIEST!!!!!

Answer:

6

Step-by-step explanation

Total assignment =x

100%-60%=40%

Therefore

40%=4

40/4=10

60/10=6

6+4=10

Total assignment x=10.

The total number of math problems assigned for homework will be 10.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

Sydney completed 60% of the math problems assigned for homework. She has 4 more problems to finish.

Then the number of total problems assigned is calculated as,

⇒ 4 / (1 - 0.60)

⇒ 4 / 0.40

⇒ 10

The total number of math problems assigned for homework will be 10.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ5

Answer: the answer is 42 degress

Step-by-step explanation: A strait line would equal 180 degress so subtract the angle you know witch is 138 degress to get 42 degress

Answer:

63

Step-by-step explanation:

It took 3 hours for her to deliver 189 total.

We need delivery per hour for our answer.

189 / 3 = 63

63 new papers are delivered per hour.

Answer:

Step-by-step explanation:

THE ANSWER IS 286 FT

JUST TOOK QUIZ ON GRADPOINT

Answer:

x=300

Step-by-step explanation:

Multiply both sides by 10

0.4x·10=0.5x·10-30·10

Refine

4x=5x-300

Subtract 5x from both sides

4x-5x=5x-300-5x

Simplify

-x=-300

Divided both sides by -1

-x/-1=--300/-1

Simplify this and you will get x=300

Hope this Helps

Answer:

66

Step-by-step explanation:

The statement can be translated to

x + x/2 + 1 = 100

Where x is the number of birds flying. Simplify this and get:

3/2 x = 99

x = 99 * 2/3 = 66

Answer:

A - 30 miles

B- 75 miles

C- 120 miles

Glad I could Help :)

Step-by-step explanation:

Answer:

Saving=£450

Spent=£200

Step-by-step explanation:

Ratio of saving to spending is 9:4

She inherits £650

So to determine her saving

It will be

9+4=13

Since her saving is 9

So, 9/13 × 650

5850/13

=450

So her saving is£450

To determine what she spent

4/13 × 650

2600/13

200

Saving=£450

Spent=£200

The amount she saves is  £450 and the amount she spends is £200.

Step-by-step explanation:

Given,

The amount she has = £650

The ratio of saving to spending money is 9:4

To find the amount she saves and she spends.

Let,

The amount she saves = 9x

The amount she spends = 4x

According to the problem,

9x+4x = 650

or, 13x = 650

or, x = [tex]\frac{650}{13}[/tex] = 50

Hence,

The amount she saves =  £50×9 =  £450

The amount she spends = £50×4 = £200

Answer:

This answer is -28

I have this problem on my school work this is what the correct answer is ;3

Answer: um im not really sure what you want here but im pretty sure thats the answer right there, dont know what else to say.

Answer:

He did not perform enough trials to compare the theoretical and experimental probabilities

Answer:

Answer: cone Z and cylinder Y

Step-by-step explanation:

Answer:

Correct for plato

A. cone Z

B. cylinder Y

Step-by-step explanation:

The figures cone Z and cylinder Y have the same volume.

Answer:

32?I think don't quote me

20 cookies.

100/30 is 3.33(Repeating)

So 3.33(Repeating) x 6 is 20.

Answer:

Where is the rectangular prism.

Step-by-step explanation:

Cannot help to answer this question.

Answer:

We need the prism

Step-by-step explanation:

Where is the prism

The value of c that makes the expression x² − 15x + c a perfect square trinomial is obtained by squaring half the coefficient of x, which in this case is 225/4. Therefore option A is the correct answer.

To find the value of c that makes the expression x² − 15x + c a perfect square trinomial, we need to find a value for c such that the trinomial can be expressed as the square of a binomial.

This binomial will have the form (x - h)², where h is half the coefficient of the x term in the original trinomial.

In this case, the coefficient of x is -15.

Half of -15 is -15/2.

Squaring this value will give us c. Thus, (-15/2)² equals 225/4.

The value of c that makes the expression a perfect square trinomial is 225/4.

Answer:

Slope =-1/3

Step-by-step explanation:

(3,2)..... x1 =3, y1=2

(-3,4).... x2=-3, y2 =4

Slope=(y2-y1) /(x2-x1)

Slope=(4-2) /(-3-3)

Slope =2/(-6)

Slope=-1/3

Answer:

[tex]\theta=128.5^{\circ}[/tex]

Step-by-step explanation:

The given angle measure is

[tex]\theta=\dfrac{257\pi}{360}[/tex]

We need to convert the radian measure to degree.

To convert radian to degree, multiply the given measure by [tex]\frac{180^{\circ}}{\pi}[/tex].

[tex]\theta=\dfrac{257\pi}{360}\times \dfrac{180^{\circ}}{\pi}[/tex]

On simplification, we get

[tex]\theta=128.5^{\circ}[/tex]

Hence, the required measure is [tex]\theta=128.5^{\circ}[/tex].

The volume of the prism with a pentagonal base area of ([tex]\frac{124}{\tan36^\circ}[/tex])m² and height of 13 m is approximately 2218.73  m³ when rounded to the nearest hundredth.

The volume of a prism is calculated by multiplying the area of the base by the height of the prism. For a prism with a pentagonal base, if the area of the base is ([tex]\frac{124}{\tan36^\circ}[/tex])m² and the prism's height is 13 m, then the volume V is found by the following calculation:

V = area of base × height
V = ([tex]\frac{124}{\tan36^\circ}[/tex]) × 13

First, calculate the numerical value for tan36°:

tan36° ≈ 0.7265

Then plug this value into the formula:

V = (124÷0.7265) × 13
V ≈ 2218.73 m³

The volume of the prism is therefore approximately 2218.73 m³, rounded to the nearest hundredth.

Answer: B .. Y = +- square root X+36

Step-by-step explanation:

Answer:

(-1.5, -0.5)

Step-by-step explanation:

The formula for the midpoint given the endpoints is the following:

[tex](\frac{x_2+x_1}{2}, \frac{y_2+y_1}{2})[/tex]

Thus, the x coordinate of the midpoint is -3/2

The y coordinate would be -1/2

Answer:

A) 5 meters to cm= 500cm

B)  10 quarts to pints= 20 pints

C) No, cause 26 pints is just 3.25 gallons so he would need 6 more pints to fill up four gallons of milk that is 36 pints makes four gallons

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

the number line has a -4 and adds the 1/2

hope this helps!!!

brainliest plz :)

Answer:

Spinning a 3 and rolling a 3

Step-by-step explanation:

There are 45 numbers out of which 5 numbers are required to win an enormous sum of money

No of ways  in which 5 numbers can be selected out of 45 numbers.

[tex]C_{45}^5=\frac{45!}{40!5!} =1221759[/tex]

out of which there is only combination foe contest winning

[tex]P=\frac{1}{1221759}[/tex]

When 100 different tickets are bought then

Probability of winning: [tex]\frac{100}{1221759}[/tex]

Probably of winning≈0,000082

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

P.S. Hello from Russia :^)

Answer:

c=7.75

Step-by-step explanation:

First distribute the 4 on the right side

7=4(c-6)

7=4c-24

Add 24 on both sides

31=4c

Divide by 4 on both sides

c=7.75

Hope this helps!

Answer:

7.75 -= c

Step-by-step explanation:

Alright let's do this step by step!

7 = 4c - 24

add 24 to both sides :)

31 = 4c

divide by 4 (both sides)

c = 7.75

Thank me later :)

Asher will need c. 936 cm² of paint to cover both the bookends.

Step-by-step explanation:

Step 1:

To determine the amount of paint needed, we determine the surface area of the triangular prisms.

To calculate the triangular prism's surface area, we calculate the areas of all the 5 sides. We divide the prism into 2 triangles and 3 rectangles, find the areas individually and then sum them all up in order to determine the area of the entire triangular prism.

Step 2:

There are two triangles with base lengths of 9 cm and heights of 12 cm. A triangle's area is half the product of the base length and its height.

Area of 1 triangle = [tex]\frac{1}{2} (9)(12) = 54[/tex] cm².

Area of both triangles = 2× Area of 1 triangle [tex]= 2(54)[/tex] = 108 cm².

Step 3:

There are three rectangles with a common length of 10 cm but there are three different widths. Any rectangle's area is calculated by multiplying the rectangle's length with its width.

Area of a rectangle with width 15 cm [tex]= (10)(15) = 150[/tex] cm².

Area of a rectangle with width 9 cm [tex]= (10)(9) = 90[/tex] cm².

Area of a rectangle with width 12 cm [tex]= (10)(12) = 120[/tex] cm².

Step 4:

The area of the entire triangular prism = Area of 2 triangles + Area of all the 3 rectangles = [tex]108+150+90+120 = 468[/tex] cm².

This is the surface area of 1 bookend. As both the bookends are similar.

The surface area of 2 bookends [tex]= 2(468) = 936[/tex] cm².

Asher will need 936 cm² of paint to cover both the bookends.

Answer:

c

Step-by-step explanation: