Mathematics High School

Find the surface area of the regular pyramid.

Answers

Answer 1

Answer:the surface area of the pyramid is

16 square feet

Step-by-step explanation:

I found this on a website called quizlet and it showed the answer to this problem

Related Questions

You have 4 tickets to the movies and can take 3 of four friends, Mike, Tom, Eddie, and Chris. If chosen randomly, what is the probability that you will take Mike, Tom, and Chris?

Answers

Answer:

Hello!

You have to find the probabilities of these happening

To pick Mike the first time is a 1 /4 chance

To pick Tom after Mike is a 1 / 3 chance since you picked mike

To pick Chris after Tom is a 1 / 2 chance since there are only two friends left

To find the probability of these happening in a row you multiply them

1/4 * 1/3 * 1/2 = 1/24

The answer is 1/24

Hope this helps!

-Brinks

Find the area of the parallelogram

Answers

Answer:

17.94

Step-by-step explanation:

Area of a parallelogram is base times height.

Base: 3.9 in

Height: 4.6 in

3.9x4.6=17.94

A bottle contains 3 red marbles, 5 blue marbles and 2 green marbles. If a single marble is drawn from the bottle at random, what is the probability that the marble is green?

Answers

Answer:

1/5

Step-by-step explanation:

There are 3+5+2 = 10 marbles in the bottle

P(green) = number of green marbles/ total

= 2/ 10 = 1/5

Huixian needs 171 pens , 63 pencils and 27 erasers into identical gift bags so that each item is equally distrusted among the gift bags . Find the number of each item in a gift bag

Answers

Answer:

57 pens per bag

21 pencils per bag

9 erasers per bag

Step-by-step explanation:

Here, we are to distribute a specific portion of each of the items in each of the gift bags.

What we must take into consideration is that the number of items per gift bag must be equal.

Thus, what we do is to divide the total number of each item by 3 to get exactly the number of each items that would be in each of the gift bags

For the pens, we have 171/3 = 57 pens per bag

For the pencils, we have 63/3 = 21 pencils per bag

For the erasers, we have 27/3 = 9 erasers per bag

The prism's volume is the area of the base,
times the height,
Since the ratio of the areas is then the volume of
the cylinder is times the volume of the prism.
V = (4rº), or

Answers

Answer:2r(2r)

pi/4

pi times r cubed

Step-by-step explanation: just answer it e2020

Im really dumb. Like really dumb. Please help! Gn

Answers

Answer:

3√34

17.5

Step-by-step explanation:

Use the Pythagorean theorem: a^2 + b^2 = c^2

a = 9

b = 15

9^2 + 15^2 = c^2

81 + 225 = c^2

306 = c^2

c = 3√34 ≈ 17.5

Answer:

your answer would be 17.5 and i think you are very smart

Step-by-step explanation:

Help please will give brainliest

Answers

Answer:

Step-by-step explanation:

Answer no clue if u remember me but we was friends like last year over the summer. i found one our old conversations on here. j wanted to say hi and check in :)

Step-by-step explanation:

if there are 60 songs on a mp3 and 21 are rock. what is the ration of rock songs not being played at all

Answers

Answer:

rock: not rock

7:13

Step-by-step explanation:

First determine how many songs are not rock

60-21 = 39

There are 39 songs that are not rock

ratio of rock to not rock

rock: not rock

21:39

We can divide by 3

21/3:39/3

7 : 13

hi I need some help...
-6y + 17 = 3y -10

Answers

Answer:

y=3

Step-by-step explanation:

Solve by subtracting

[tex]-6y + 17 = 3y -10\\-6y=3y-27\\-9y=-27\\[/tex]

Today, everything at a store is on sale. The store offers a 20% discount.If the regular price of an item is x dollars, what is the discount price in dollars? Type the correct expression in the box below.

Answers

Answer:

0.80x dolllars

Step-by-step explanation:

20% discount of the total amount is

0.20 * x dolllars

So if you start with x dollars you need to subtract the discount to get the new (lower ) price.

x - (0.20 * x) dolllars

1* x - 0.20 * x

x * 1 - 0.20 * x

x * ( 1 - 0.20 )

x * ( 0.80 )

0.80x dolllars

Micheal has a set of 5 cards shown below. Micheal wil randomly select a card, not replace it, then select another card. What is the probibality That he selects a prime number and then a 1?

Answers

Answer:

3/20 or 15%

Step-by-step explanation:

Out of 1,2,3,4, and 5, there are 3 prime numbers. This makes the odds of selecting one of those prime numbers 3/5. Then, saying that he does pick a prime number and discards that card, there are now four cards, one of them being the number one. His chances of selecting this card is 1/4.

To find the probability you need to multiply the two probabilities together.

3/5 times 1/4 is 3/20.

So your answer is 3/20 or 15%.

Urgent. Explain in words, how you would plot (0, 4) on a coordinate plane.

Answers

0 means u do not move right or left at all and the 4 means u move up 4 units.

Answer:

in the ordered pair, (0,4), the zero represents the x number, meaning that you would not move in any direction on the x axis( it stays on the origin). the 4 means you will move 4 units up the y axis. in the end you will have one point that in 4 units up from the origin.

Step-by-step explanation:

A commercial airplane travels 5,000 feet east and then ascends 3,000 feet from its starting point in the sky. Upon noticing a severe storm system on the horizon, the pilot decides to return to the starting point. A) how much distance does the plane have to travel to turn back? B) at what angle would the plane need to travel to return to its starting point. (1,000 feet = 1 unit)

Answers

Answer:

A) 5830.95 B)59.04

Step-by-step explanation:

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x=59.04

The distance the plane has to travel to turn back is 5830.95 km.

The angle would the plane need to travel to return to its starting point is 59.04°

How to find the distance?

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x = 59.04

Height is the size of an object in the vertical course and distance is the measurement of an object from a specific factor in the horizontal route.

Learn more about Height and distance here: https://brainly.com/question/25638875

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Find the surface area.

Any help will be appreciated. Thank you

Answers

Answer: 144 units squared

Step-by-step explanation:

Rec- 3 x 11 = 33

Rec- 4 x 11 = 44

Rec- 5 x 11 = 55

Tri- 3 x 4 = 12 12/.5 = 6

33 + 44 + 55 + (6 x 2)

33 + 44 + 55 + 12 = 144

Evaluate the expression 3 x
{10 +1} +5.

Answers

Answer:

Step-by-step explanation:

3 x {10 +1} +5.

PEMDAS

Parentheses first

3 x {11} +5.

Then multiply and divide

33+5

Answer:

Step-by-step explanation:

3 x {10 +1} +5 Following PEMDAS, solve in the parentheses

3 x 11 + 5 Multiply 3 x 11

33 + 5 Add

The repairmen are fixing 9 cars 2 motorcycle and 6 trucks what is the ratio of cars to motorcycle?

Answers

Answer:

9:2

Step-by-step explanation:

Put in what we know

cars: motorcycles

9 2

Raphael surveyed his coworkers to find out how many hours they spend on the Internet each week.
The results are shown below.

14, 22, 10, 6, 9, 3, 13, 7, 12, 2, 26, 11, 13, 25

Drag numbers to record the frequency for each range in the table.
Numbers may be used once, more than once, or not at all.
01234567
Hours on the Internet
Hours Frequency
0–4
5–9
10–14
15–19
20–24
25–29

I WILLL MAKE BRAINLIEST AND GIVE THEM ALL MY POINTS AND GIVE THEM % STARS AND A LIKE IF YOU ANSWER THESE TWO QUESTIONS ASAP NOW!!!!!!!!!!!!!!

The histogram shows the scores on a recent science test.
Using the histogram, select all of the true statements that describe the data.

Histogram named as

Answers

The frequency of each range in the table is as follows:-

Range Frequency

[tex]0-4[/tex] [tex]2[/tex]

[tex]5-9[/tex] [tex]3[/tex]

[tex]10-14[/tex] [tex]6[/tex]

[tex]15-19[/tex] [tex]0[/tex]

[tex]20-24[/tex] [tex]1[/tex]

[tex]25-29[/tex] [tex]2[/tex]

Frequency

The frequency of a particular value is the number of times the value occurs in the data.

How to find the frequency of a particular value?

First, find the number of times the particular value occurs in the given data.

Given, Raphael surveyed his co-workers to find out their spent hours on the internet each week.

The results are:-

[tex]14,22,10,6,9,3,13,7,12,2,26,11,13,25[/tex]

Thus, the number of occurence of a particular range can be written as follows:-

Range Hours in given data Frequeny

[tex]0-4[/tex] [tex]3,2[/tex] [tex]2[/tex]

[tex]5-9[/tex] [tex]6,9,7[/tex] [tex]3[/tex]

[tex]10-14[/tex] [tex]14,10,13,12,11,13[/tex] [tex]6[/tex]

[tex]15-19[/tex] [tex]0[/tex] [tex]0[/tex]

[tex]20-24[/tex] [tex]22[/tex] [tex]1[/tex]

[tex]25-29[/tex] [tex]26,25[/tex] [tex]2[/tex]

Hence, the frequency of each range in the table is as follows:-

Range Frequency

[tex]0-4[/tex] [tex]2[/tex]

[tex]5-9[/tex] [tex]3[/tex]

[tex]10-14[/tex] [tex]6[/tex]

[tex]15-19[/tex] [tex]0[/tex]

[tex]20-24[/tex] [tex]1[/tex]

[tex]25-29[/tex] [tex]2[/tex]

#Learn more about the frequency here-

https://brainly.com/question/5102661

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which is the equation of a line that has a slope of -2/3 and passes through point (-3,-1)

Answers

Answer:

y = -2/3x - 3

Step-by-step explanation:

y = mx + b

m = slope

(-3,-1) = (x,y)

Plus in the coordinates

-1 = -2/3(-3) + b

negative times negative = positive

-2/3 * -3 = 2

-1 = 2 +b

Use inverse operations

-2 --2

-3 = b

y = -2/3x - 3

Answer:

y = -2/3 x - 3

Step-by-step explanation:

since you have a point and a slope, you can use point - slope form

[tex]y - y_{1} = m (x - x_{1} )[/tex] plug in the point as [tex](x_{1}, y_{1})[/tex] and the slope as my - (-1) = -2/3(x - (-3)) change two negatives into positivey + 1 = -2/3 (x+3) distribute the -2/3y + 1 = -2/3x - 2 subtract 1 from both sidesy = -2/3 x -3

I NEED THIS ASAP, THANKS!!! I WILL MARK BRAINLEIST!

Why is it important to describe the variable in an expression? Thank you!

Answers

9514 1404 393

Explanation:

Understanding what a variable stands for is essential when substituting values or interpreting answers.

For example, consider the equation for arc length:

s = rθ

The variables stand for ...

s — arc length in units of distancer — radius of the arc in the same units of distanceθ — the angular measure of the arc in radians (unitless)

For proper use of this formula, it is essential to understand that the variables s and r have the same units of length. The angular measure is not degrees (or grads), but is the unitless measure of angles known as radians.

It would be erroneous to use feet or yards for 'r' and expect the arc length 's' to be in miles. Similarly, it would be erroneous to substitute 30° for θ, instead of the equivalent radian measure π/6.

These errors can be avoided if the variables are properly described.

Lizzie goes to the Lakeside Mall with friends. She spends $25 and returns home with $45. How much money dd in dollars does Lizzie start with? Write an equation to show the amount of money Lizzie starts with.

Answers

Answer:

$25+$45=$70

Step-by-step explanation:

The only thing you have to do is add $25 and $45 hope this helps :)

Kim ate 10 apples and had 30 apples in the began

Answers

20 apples left
10 apples eaten

Answer:20 apples

Step-by-step explanation:

30-10=20

ASSIGNMEN
Solve the following linear system of equations using substitution.
y = 3x - 5
y = 2x - 6
O (3, 2)
0 (-5, -6)
(-1,-8)
(1, -2)
DONE

Answers

Answer:

(-1,-8)

Step-by-step explanation:

A car travels 294 miles in 5 hours and 15 minutes. How many miles does it travel per hour?

Answers

Answer:

Hey!

Your answer is 56 miles!

Step-by-step explanation:

To find speed, we do 294 divided by 5hrs and 15mins (5.25)

So next= 294 / 5.25

Which gives us 56 mph!

HOPE THIS HELPS!!

The car travel 56 miles per hour.

What is Speed?

The speed can be defined as the rate at which an object covers some distance.

Here, we know that,

Speed = Distance / Time

Now, Distance = 294 miles

Time = 5 hours and 15 minutes

= 5.25 hours.

Now, Speed = 294 / 5.25

= 56 miles per hour.

Thus, the car travel 56 miles per hour.

Learn more about Speed from:

https://brainly.com/question/7359669

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