Use a net to find the surface Area of the square pyramid The height of the pyramid is 9 yes and the base sides are all 2.5 yrds and its a square as a base

Answers

Answer 1

Answer:

[tex]Area = 51.68yd^2[/tex]

Step-by-step explanation:

Given

[tex]h = 9yd[/tex] -- height

[tex]a = 2.5yd[/tex] --- base sides

Required

Determine the surface area

The net is not given. So, I will solve directly.

The surface area is calculated as:

[tex]Area = a^2 + 2a\sqrt{\frac{a^2}{4} + h^2}[/tex]

So, we have:

[tex]Area = 2.5^2 + 2*2.5\sqrt{\frac{2.5^2}{4} + 9^2}[/tex]

[tex]Area = 6.25 + 5\sqrt{\frac{6.25}{4} + 81}[/tex]

[tex]Area = 6.25 + 5\sqrt{1.5625 + 81}[/tex]

[tex]Area = 6.25 + 5\sqrt{82.5625}[/tex]

[tex]Area = 6.25 + 5* 9.086[/tex]

[tex]Area = 51.68yd^2[/tex]


Related Questions

Which equation below best describes the line on the graph below?
a 2x+6y=8
b 2x-6y=8
c 2x+6y= -8
d 2x-6y= -8
please give steps :)

Answers

Hi! So by looking at your graph, you want to find the slope. First you want to find to points and find the distance between the two. I’ll use the points (-8,4) and (-2,2). Starting at (-8, 4), move down 2 and right 6. This shows that your slope will be -2/6 (further simplified to -1/3)?

Now, looking at each equation given to you in standard form, which will have a slope of -1/3? Your first answer, 2x+6y = 8, has a slope of -1/3, with a y-intercept value of 4/3 (or 1.5). If you look back at your graph again, you can see that the y-intercept is 1.5, so your answer will be A. :)

What is the percent of change from 78 to 100 decreased

Answers

Answer:

28.20512821 %

Step-by-step explanation:

22/78 = 28.25%

Answer:

28.20512821 %

Step-by-step explanation:

22/78 = 28.25%

Find the value of y.
y
120

Answers

Answer:

60 degrees

Step-by-step explanation:

Sam asked some other children which sport they like. They all choose swimming. Now the most children choose swimming. How many children did Sam ask?

Answers

Answer:

five or more than five

Step-by-step explanation:

From the chart, we know that,

Number of children who chose soccer = 7   (this was the highest)

Number of children who chose swimming = 3

So for swimming to be chosen the most, it should gave been chosen by more than 7 children, i.e. 8 children or more than 8.

So the difference between 8 children and 3 children is = 8 - 3

                                                                                            = 5

Thus, 5 is the least number of other children to chose swimming.

Therefore, Sam asked at least 5 number of children or more than 5.

the cost of equal-priced DVD and the number purchased

Answers

Answer:

Linear relationship

Step-by-step explanation:

ok <3

Solutions 5x + 10 = 5x

Answers

Answer:

I think there is no solution to the equation. (I'm not sure what your asking)

Step-by-step explanation

The equation should equal 0, so you subtract 5x from both sides. Once you do that, it cancels out the 5x and leaves 10=0 which is a false statement.

Solve 3/8 + n = 7/8 n = ?

Answers

Answer:

n = 4/8 or 1/2

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

Move all terms not containing n

to the right side of the equation.

Exact Form:

n=12

Decimal Form:

n=0.5

Find the roots: x^2−12x+32=0​.

Enter your answers in the boxes (numbers only).

Answers

The answers are 4 and 8.

Because:

x^2 - 12x + 32 =

(x - 4)(x - 8)

x - 4 = 0

   +4    +4

x = 4

x - 8 = 0

  +8    +8

x = 8

please help me with this one

Answers

Answer:

248

Step-by-step explanation:

Divide 62 by 2 to get 31. Each distance on the map should be multiplied by this number. So if it's 8 on the map, its 8 x 31 in real life. 8 x 31 = 248

PLEASE HELP ASAP

There are 600 ninth graders. The ratio of boys to girls is 3:2. How many girls are there? How many
boys are there?

Answers

360 boys to 240 girls

Real life applications of chain rule

Answers

Answer:

The Chain Rule can also help us deduce rates of change in the real world. From the Chain Rule, we can see how variables like time, speed, distance, volume, and weight are interrelated. A horse is carrying a carriage on a dirt path.

One real-life application of the chain rule is the study of motion in a car that is traveling along a curved path.

What is the chain rule?

The chain rule is a fundamental concept in calculus that enables us to calculate the derivative of composite functions.

Composite functions are functions that are constructed by combining two or more functions. The chain rule tells us how to calculate the derivative of a composite function by breaking it down into simpler parts.

One real-life application of the chain rule is in physics, specifically in the study of motion.

For example, suppose we have a car that is traveling along a curved path. We want to know the rate at which the car is changing its speed at a particular point on the path. To do this, we need to find the derivative of the car's speed with respect to time.

Learn more about the chain rule here:

https://brainly.com/question/28972262

#SPJ2

The question seems incomplete, the complete question would be as:

Write a real-life application of the chain rule.

A factory worker loaded some boxes onto a cart . Each box has the same weight . This expression represents the total weight in pounds , of the cart and n boxes 10n + 25 Based on the expression , what is the weight , in pounds , of the cart ?

Answers

Answer:

25 pounds

Step-by-step explanation:

Sum of the weight of the boxes of the cart = 10n + 25

where n = number of boxes

10 would be the weight of each box.

total weight of the boxes = weight of each box x number of boxes

10 x n = 10n

The other variable is 25. this is the weight of the cart

All edge are 8 cm in length. What’s the surface area?

Answers

Answer:

192

Step-by-step explanation:

This is because its a square and all the sides on a square are equal so it would be:

top/bottom= 8*8

left/ right= 8*8

front/ back= 8*8

all equal 64 then you do 64*64*64 to get 192!

Hope this helped!

the surface area is 192 i believe not 100% though

!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

A

Step-by-step explanation:

Answer:

Im gona guess C but im not 100%

Step-by-step explanation:

2x + 6y = -8
x - 3y = 8

Answers

Answer:

thats easy

Step-by-step explanation:

Help if you can!! I really need some good grades or I will fail this and that wont help anything.

Answers

Answer:

26) A

29)D

4) C

Step-by-step explanation:

Hope this helps. Your gonna pass

WILL GIVE BRAINLIEST TO CORRECT ANSWER!
Priya and Han plan a fundraiser for the running club. They begin with a balance of -80 because of expenses. In the first hour of the fundraiser they collect equal donations from 9 parents, which brings their balance to -44. How much did each parent give?

Answers

Answer: 4

Step-by-step explanation:

First we need to find the difference of the balance.

it was -80 then it became -44. The difference is 36.

Next we divide 36 by 9 from the 9 parents.

The answer is 4

help please!!! just need to answer numbers 1-3 thank you to whoever helps !! :)

Answers

Right angle 90 and right angle 45

Answer:

1) Area = ½ b × h

= ½ × 6 × 4

= 12

2) Area = ½b × h

= ½ × 3 × 4

= 6

3) Area = ½b × h

= ½ × 4 × 7

= 14

GUYS PLEASE ASAP I WILL FAIL IF U GUYS DONT ANSWER PLEASE

Answers

Answer: a square is both rectangle and quadrilateral.a trapezoid, rhombus and parallelogram is a quadrilateral. A parallelogram is also a rectangl.

Step-by-step explanation:

*EXTRA POINTS* please answer #5 and #6

Answers

Answer:

5, (0, -2)

6, (4, 9)

Step-by-step explanation:

Solve by graphing -3x + y = 4 y = -2x - 1

Answers

Answer:

(-1,1)

Step-by-step explanation:

15a-20+10a
What’s an equivalent fraction

Answers

Answer: =25a−20

Step-by-step explanation: Hope this help :D

Answer:

Add 15a and 10a. 25a−20

Step-by-step explanation:

PLEASE HELP GIVING 20 POINTS!!!

Answers

Answer:

Trapezoid

Step-by-step explanation:

You can see in the picture, it is a quadrilateral with 4 connected sides and angles.

It doesn't have any right angles.

And one set of parallel lines from top to bottom.

Answer:

c trapaziod

Step-by-step explanation:

The six sides of a number cube are labeled 1,2,3,4,5, and 6. You flip a coin and roll the number cube. What is the theoretical probability that the coin lands on tails and you roll a number less than 3?

Answers

Answer:

1/6

Step-by-step explanation:

P(tails, # LT 3) = 1/2 x 2/6  =  1/2 x 1/3

Simplify (2x-9)(4x+1)

Answers

Answer:

the answer is 8x^2-34x-9

Answer:

8x^2 - 34x - 9

Step-by-step explanation:

need a little help on this












































.

Answers

The answer is B 10 1/2 Hours

Use the spinner to find the theoretical probability of spinning a 1 and then a 2. Round answer to the nearest hundredth. A spinner is divided into 9 equal sections. Starting from the top right and moving clockwise direction, the regions are labeled 1,2,3,4,5,6,7,8, and 9. The spinner pointed at near the boundary line of 3.

Answers

Answer:

1/18

Step-by-step explanation:

yur welcome

A perfectly square cornfield has an area of 9 miles. Which of the following is true>
A, Each side of the field is 9 miles long
B, Each side of the field is 3 miles long
C Each side of the field is 2.25 miles long
D Each side of the field is 900 miles long

Answers

the answer would be B because the formula of area is length times width and three times three is nine

Answer:

The answer is b

Step-by-step explanation:

imagine needing help on a brain pop quiz

help out please !

Select all of the quadratic expressions in vertex form.
A (2+4)^2– 3
B (- 5)^2+ 2
C x^2+ 2x + 5
D x (x+2)
E (2+4)^2

Answers

Answer:

A C E

Step-by-step explanation:

A tower that is 137 feet tall cast a shadow 152 feet long find the angle of elevation of the sun to the nearest degree

Answers

Answer: 41 will be your answer

Step-by-step explanation:

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