Maggie answered 20 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly?​

The answer I got was $114.36

ANSWER

[tex] 3840 {m}^{3} [/tex]

EXPLANATION

The total amount of space is the volume of the composite solid.

We find the volume of the rectangular prism and add it to the volume of the triangular prism.

The total amount of space inside the museum is:

[tex] =l \times b \times h + \frac{1}{2} \times base \times height \times height \: of \: triangular \: prism [/tex]

[tex] = 30 \times 12 \times1 0 + 0.5 \times 12 \times 4 \times 10[/tex]

[tex]= 360 0 + 240[/tex]

[tex] = 3840 {m}^{3} [/tex]

Therefore,the total amount of space inside the museum is 3,840 cubic meters.

Answer:

Step-by-step explanation:

㏒[tex]13 = 1.11394335[/tex]

Round.

[tex]1.11[/tex]

The value of log 13 is 1. 11

Using a calculator, press in the log of 13

Log 13 = 1. 114

Rounding the value to the nearest tenth.

Log 13 = 1. 11

Therefore, the value of log 13 is 1. 11

Learn more about logarithm here:

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Answer:

Usual, because the result is between the minimum and maximum usual values.

Step-by-step explanation:

To identify if the value is usual or unusual we're going to use the Range rule of thumbs which states that most values should lie within 2 standard deviations of the mean. If the value lies outside those limits, we can tell that it's an unusual value.

Therefore:

Maximum usual value: μ + 2σ

Minimum usual value: μ - 2σ

In this case:

μ = 153.1

σ = 18.2

Therefore:

Maximum usual value: 189.5

Minimum usual value: 116.7

Therefore, the value of 187 lies within the limits. Therefore, the correct option is D.  Usual, because the result is between the minimum and maximum usual values.

Answer:

D. Usual, because the result is between the minimum and maximum usual values

Step-by-step explanation:

Answer:

x = 25

Step-by-step explanation:

Step 1: Make a proportion

40/20 = 50/x

Step 2: Solve your proportion

2 = 50/x

2x = 50

x = 25

Answer:

try using a ruler

Step-by-step explanation:

Answer:

9π

Step-by-step explanation:

3²π = 9π

ANSWER

28.26 units square.

EXPLANATION

The area of a circle is given by

[tex]A = \pi \: {r}^{2} [/tex]

The radius of the circle is given as 3 units.

We substitute r=3 and π=3.14 into the formula to obtain:

[tex]A = 3.14 \: \times {3}^{2} [/tex]

[tex]A = 28.26sq. \: units[/tex]

Therefore the area of the circle 28.26 units square.

Answer:

Step-by-step explanation:

[tex]n-number,\ n>0\\\\9n^2+8=44\qquad\text{subtract 8 from both sides}\\\\9n^2+8-8=44-8\\\\9n^2=36\qquad\text{divide both sides by 9}\\\\\dfrac{9n^2}{9}=\dfrac{36}{9}\\\\n^2=4\iff n=\pm\sqrt4\\\\n=\pm4[/tex]

Answer:

The mean for december is higher than januarys mean.

Step-by-step explanation:

Answer:

25 seconds

Step-by-step explanation:

Skydiving.  

height (in feet) above the earth=h(t)= -16t^2 + 10,000

the time it would take to fall when h is 0  

-16t^2 + 10,000=0

-16t^2=-10000

16t^2=10000

t^2=10000/16=625

t=sqrt 625=25 seconds

-6

To find the slope of the perpendicular line, start with the original slope, 1/6.

The slope of a perpendicular line is the opposite and inverse of the slope of the original line. So, start by finding the inverse. This is done by simply flipping the numerator and the denominator to get 6/1, which is simplified to 6.

Finally, find the opposite of 6. You can find the opposite of a number by multiplying or dividing it by -1. If it is a positive number, just add a negative sign, and if it is already a negative number, take away the negative sign. So, the opposite of 6 is -6, which is out final answer.

Answer:

[tex]60 - 20 = 40[/tex]

Step-by-step explanation:

Another way of stating this problem is find the Interquartile Range which is

Quartile 3 - Quartile 1.

The middle 50% of times that sophomores spend on homework per night refers to the interquartile range in statistics. This is found by ordering the data from least to greatest, splitting the data into 4 equal parts, then finding the values at the 1st and 3rd quartiles. The IQR is the range between these two values.

The range of times that the middle 50% of sophomores spend on homework per night refers to the interquartile range (IQR) in statistics. This is because the middle 50% is equivalent to the data between the 1st quartile (25th percentile) and the 3rd quartile (75th percentile). To determine this IQR, you must first have the data you need- in this case, how long each sophomore spends on their homework. Then, you must order this data from least to greatest. Once ordered, you find the 1st and 3rd quartile values by splitting the data into 4 equal parts. Your IQR is then the range between these two values.

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3(2y - 4) = 8y + 9 - 9y

Distribute 3:

6y - 12 = 8y + 9 - 9y

Combine like terms:

6y - 12 = -y + 9

Add y to both sides:

7y - 12 = 9

Add 12 to both sides:

7y = 21

Divide both sides by 3:

y = 3

Answer:

Y = 3

Step-by-step explanation:

Answer:

irrational number, non-repeating decimal

Step-by-step explanation:

√18 = √9·√2 = 3·√2.  

√2 is an irrational, non-repeating decimal (my calculator shows it to be approx. 1.414213562..... )

and so √18 is the same.

Answer:

Irrational number, Non-repeating decimal

Step-by-step explanation:

Dictonary definition of

IRRATIONAL NUMBER:

"(of a number, quantity, or expression) not expressible as a ratio of two integers, and having an infinite and nonrecurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2."

Answer:

slope = - 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 1) and (x₂, y₂ ) = (1, - 1) ← 2 points on the line

m = [tex]\frac{-1-1}{1-0}[/tex] = - 2

Answer:

Slope = -2

Step-by-step explanation:

(0,1) and (1,-1)

Slope = (-1 -1)/(1-0)

Slope = -2

The sum of the lengths of two sides of a triangle must always be less than or equal to the third side. So, if we let the third side be x, we have:

[tex]\begin{cases}6+x\geq9\\x+9\geq6\\6+9\geq x\end{cases} \iff \begin{cases}x\geq3\\x\geq -3\\x\leq 15\end{cases} \iff \begin{cases}x\geq3\\x\leq 15\end{cases}[/tex]

Answer:

anything between 3 and 15 BUT NOT 3 OR 15

they can be

4

5

6

7

8

9

10

11

12

13

14

Answer:

126 sq units.

Step-by-step explanation:

We want the side surface area only, we'll calculate both

For the sides, we have 4 triangles with a base of 7 and a height of 9 units.

The area of a triangle is calculated with A = (b * h)/2

So, each of the sides of the pyramid has an area of:

A = (7 * 9) / 2 = 31.5 sq units

There are four sides, so total lateral area: 4 * 31.5 = 126 sq units.

The total lateral area of that pyramid is 126 sq units.

The volume of one marble is 0.04 liters.

Multiply the volume by the number of marbles:

50 x 0.04 = 2 liters.

Add that to the volume of water:

33 +2 = 35 liters

The volume of the tank is 35 liters.

Part 2:

Subtract the volume of water from the volume of the tank:

35 - 20 = 15 liters.

Now divide the remaining volume by the volume of a marble:

15 / 0.04 = 375 marbles are needed.

Answer:

A(3,4), B(2,2), C(6,3), D(1,6)

Step-by-step explanation:

The coordinates you wrote out are different then what is shown on the graph, On the graph the points are A(3,2), B(2,4), C(6,3), D(1,0)

So when it comes to solving this first you need to know what you are going to reflect over, in this case its X=3 which would be a horizontal at point 3 and across.

Then you count how far away the points are from X=3 line and reflect.

Hard to explain but i hope it helps

The coordinates of A after reflecting across the line x=3 is (2,3).

Hence, the correct answer is (2,3) if it is reflected across the line x=3.

Learn more about coordinates, refer to:

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Answer:

The answer is D; (5,3)

The answer would be D 5,3.

First we have to determine how many chairs there are total. To do this multiply 9 by 28

9*28 = 252

That means you have a total of 252 chairs. Since we can assume that every person who buys a $4 ticket will only sit in one chair, we can say that if all the seats are filled then 252 people bought a ticket

To find the total price multiply the total chairs by the cost per ticket (or chair, which ever way you want to think of it as)

252 * 4 = 1008

You would make $1008

Hope this helped!

~Just a girl in love with Shawn Mendes

I'll presume the slash is the fraction bar and the questioner is asking about

[tex]\dfrac{4a+12}{a+3}[/tex]

That always equals 4 except when [tex]a=-3[/tex]

So the restriction is

Answer:  a ≠ -3

Answer:

The restriction is at a=-3

Step-by-step explanation:

You need to see if there are like terms. If there are that is a hole. For example you can a 4 out of the equation like so.

4(a+3)/a+3.

since they both have a+3 that is a hole. so a+3=0 so a=-3 is a restriction

To find the price per ounce of a 3-pound bag of sugar costing $9.12, multiply the pounds by 16 to get the total ounces (48), then divide the cost by the total ounces to get $0.19 per ounce.

To calculate the price per ounce of sugar for a 3-pound bag costing $9.12, first determine the total number of ounces, since there are 16 ounces in a pound. Multiplying 3 pounds by 16 ounces per pound gives us 48 ounces. Next, to find the price per ounce, you divide the total cost by the total number of ounces ($9.12 ÷ 48 ounces).

Performing the division gives us the cost per ounce of sugar: $9.12 divided by 48 ounces equals $0.19 per ounce.

Answer:

Step-by-step explanation:

Look at the picture.

Therefore:

[tex]\dfrac{x+8}{2x-5}=\dfrac{10}{14}[/tex]          cross multiply

[tex]14(x+8)=10(2x-5)[/tex]     use the distributive property a(b + c) = ab + ac

[tex]14x+112=20x-50[/tex]             subtract 112 from both sides

[tex]14x=20x-162[/tex]             subtract 20x from both sides

[tex]-6x=-162[/tex]           divide both sides by (-6)

[tex]x=27[/tex]

Answer: third option

[tex]y = \frac{4}{x}[/tex]

Step-by-step explanation:

It is said that two variables X and Y vary inversely if when the variable x increases then the variable and decreases.

The equations of inverse variation have the following form:

[tex]y = \frac{k}{x}[/tex]

Where k is the constant of variation

To know which of the equations varies inversely identify those that have the form

[tex]y = \frac{k}{x}[/tex]

You can see that the correct option is the third option

[tex]y = \frac{4}{x}[/tex]

Answer:

It's C.

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

If the line is solid, it is part of the solution; if it is dotted or dashed, it is not.  Solid is ≥ ≤ while dashed is > <

Answer:Quadratic because I think so and because it has fours in it so yeah good luck :p

Answer:

Linar

Step-by-step explanation:

it only has one variable

Answer: The correct option is A.

Explanation:

The given function is,

To find the graph of this function after the reflecting across y-axis, first we have to find the graph of the equation.

The value of the function is 2 when x=0, so, the graph of given equation intersect the y-axis at 2.

In the equation . Since , so the given function is decreasing function

The value of f(x) is always positive, so the graph of f(x) is always above the x-axis. Thus, the graph must be above the x-axis after reflection across y-axis.

So, the option (2) and (4) and incorrect.

When we reflect the graph across the y-axis then,

It means when x approaches to large negative number the f(x) approaches to 0 and when x approaches to large positive number the f(x) approaches to infinite.

Therefore, the correct option is show in first graph.

Answer:

The value of the expression would be 11.

Step-by-step explanation:

3 (4 - n) + 8

When n = 3:

3 (4 - 3) + 8

3 (1) + 8

3 + 8

11

Answer:

 11

Step-by-step explanation:

Let the number is n

Then as per statement of the question

"Eight more than three times the difference of four and a number"

Expression will be [3(4-n)+8]

Now for n = 3

Value of the expression will be [3(4 - 3 ) +8]

                    = [ 3 × 1 + 8 ]

                   = 11

Answer:

-300

Step-by-step explanation:

A counter-clockwise rotation is positive.

A clockwise rotation is negative.

Start at the top and go counter-clockwise 60 degrees.

Start at the top and go clockwise 300 degrees.

You end up at the same point.

It is -300 because a clockwise rotation is negative.

Here is a link with my work:

https://docs.google.com/document/d/1qWHf3acY0HKyWf8hU-_CKpbPZO214G__EGPvn53vM2I/edit?usp=sharing

Hope this helps! :)

- 300 is the same rotation as O

Each point in a figure is transformed into a rotation by rotating it a specific amount of degrees around another point.

Given

A counter-clockwise rotation is positive.

A clockwise rotation is negative.

Start at the top and go counter-clockwise at 60 degrees.

Start at the top and go clockwise at 300 degrees.

It is -300 because a clockwise rotation is negative.

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Answer: is 20%

Step-by-step explanation: I took the percentage of 200 out of 250 and it was 80% so the answer is 20%

For me the answer is 80% I hope it helps. please add brainlist