Mathematics High School

What is the surface area and volume of:

A square pyramid whose height is 8 ft and whose lateral faces are congruent isosceles triangles with a base of 12 ft and a height of 10 ft

Answers

Answer 1

Answer:

960 for volume, 423ft for surface area

Step-by-step explanation:

Related Questions

A lighthouse built at sea level is 150 feet high. From its top, the angle of depression of a buoy is 25°.
Find the distance from the buoy to the foot of the lighthouse.

Answers

Answer:

321.8

Step-by-step explanation:

tan25°=150/x plug into calculator

Gives 321.68

(-a - b)x = 3a +3b.

Answers

Given:

The equation is

[tex](-a-b)x=3a+3b[/tex]

To find:

The value of x.

Solution:

We have,

[tex](-a-b)x=3a+3b[/tex]

It can be written as

[tex]x=\dfrac{3a+3b}{(-a-b)}[/tex]

[tex]x=\dfrac{3(a+b)}{-(a+b)}[/tex]

Cancel out the common factors.

[tex]x=\dfrac{3}{-1}[/tex]

[tex]x=-3[/tex]

Therefore, the value of x is -3.

um helpppppppppppppp..

Answers

Answer:

I don't know sorry not sorry

answer

distributive

Step-by-step explanation:

[tex]x^{2}-8x+16=25[/tex]

Answers

Answer:

x = 9 ; -1

Step-by-step explanation:

[tex]x {}^{2} - 8x + 16 = 25 \\ x {}^{2} - 8x + 16 - 25 = 0 \\ {x}^{2} - 8x - 9 = 0 \\ (x + 1)(x - 9) = 0 \\ x = - 1 \\ x = 9[/tex]

Ethan reads 330 pages in 3/4 hour. How many pages does he read per hour?

Answers

Answer:

440

Step-by-step explanation:

330 divided by 3 times 4 is 440 and thats your answer.

Answer:  440  pages per hour

====================================================

Work Shown:

330 pages = 3/4 hour

4*(330 pages) = 4*(3/4 hour)  ........ multiply both sides by 4

1320 pages = 3 hours

1320/3 pages = 3/3 hours ...... divide both sides by 3

440 pages = 1 hour

Ethan's rate is 440 pages per hour.

what is 50x80 please
help
show your work

Answers

4000 50x80=4000 so to right and I got it in the calculator

Answer:

ITS 4000

Step-by-step explanation:

What is the tangent ratio for ∠B?

Answers

Answer:

Your answer is

tangent ratio of B is 3/2

Mark my answer as brainlist . I need that urgently . Folow me for more answer.

Step-by-step explanation:

Step-by-step explanation:

3/ root13 will go correct

PLEASE HELP DUE SOON NEED CALCULATIONS TOO Trevor is buying carpet for his rectangular living room the length if this living room is 3 feet more than his width the area of the living room is 88

Answers

Answer:

12

Step-by-step explanation:

The temperature in the morning is 18.6°C. By noon the temperature rises 8.5°C.

What is the temperature at noon?

Answers

Answer: 27.1

Step-by-step explanation:

18.6 + 8.5 = 27.1 hope it helps

Answer:

27.1

Step-by-step explanation:

18.6 + 8.5 = 27.1

Hope this helps :))

James gave Robert half a candy bar. Robert gave his sister half of what he had. What fraction of the whole candy bar did Robert Sister get? What percent of the candy bar did she get

Answers

Answer:

1/4

25%

Step-by-step explanation:

Robert has 1/2 of the candy bar

If he gave his sister half, she has 1/2 x 1/2 = 1/4 of the candy bar

To convert 1/4 to percentage, multiply by 100

1/4 x 100 = 25%

Graph the image of kite RSTU after a reflection over the line x= –4.

Answers

Answer:

U (-6,5)

R (-8,4)

T (-8,6)

S (-9,5)

Step-by-step explanation:

what is 2 2/5 divided by 1/3

Answers

Answer:

0.2 in decimal form

Step-by-step explanation:

2/5 ÷ 2 = 2/10 as simplified as 1/5 in fraction form. 2/5 ÷ 2 = 0.2

juan piensa en un número si al doble del
número le aumenta 18 encuentra que es igual a 27, cual es el número?​

Answers

Answer:

Step-by-step explanation:

el número es 4,5

es una ecuación lineal:

2x+18=27

2x=9

x=9/2

x=4,5

Answer:

el numero es 4.5

Step-by-step explanation:

numero = X

Doble del numero = 2X

entonces

2X + 18 =27

2x = 27 - 18

2X = 9

x = 9/2

x = 4.5

Usé el traductor de Go ogle para esto, ¡así que lo siento si no tiene sentido!

Find the complete factored form of the
polynomial:
40a3b2 + 45ab6
Enter the correct answer
OOOO
DONE
Clear all

Answers

5ab^2 (8a^2 + 9b^4)

Simplify:
ly - 2x - 3y + 4x

Answers

2x-2y
I couldn’t tell if the first figure was a one or a L or i so I solved it as a 1

Answer:

ly + 2 x − 3y

two turkey burgers and a bottle of water cost $3.25. If three turkey burgers and a bottle of water cost $4.50,What is the cost of tw bottles of water?

Answers

Answer:

$1.50

Step-by-step explanation:

let b be the number of turkey burgers and w be the number of bottles of water.

[tex]2b + w = 3.25\\3b + w = 4.50[/tex]

becomes

[tex]3b + w = 4.50\\- (2b + w)=3.25[/tex]

[tex]b = 1.25[/tex]

substitute this into one of the original equations:

[tex]3b + w = 4.5\\3 * 1.25 + w = 4.5\\3.75 + w = 4.5\\w = 0.75[/tex]

two bottles of water equals 0.75 * 2 = 1.50

-6(3x+2)=-2x-5-20x-7

Answers

Answer:

Step-by-step explanation:

[tex]-6(3x+2)=2x-5-20x-7[/tex]

-6 times 3x and 2 =

-18x-12=2x-5-20x-7

combined like terms on the right side

2x - 20x= -18x

-5-7= -12

-18x-12=-18x-12

this equation equals 0=0

what is the equation
example:: y=3/1x-6

Answers

Answer:

y = 4/6x - 4

Step-by-step explanation:

y = mx + b, m = slope and b = y intercept

Rise over run

Rise = +4

Run = +6

This means the slope is 4/6.

The y intercept is at -4.

Now, plug in the numbers for y = mx + b

y = 4/6x - 4

Please answer this its in the picture

Answers

The correct answer is

2 cents.

Answer:

the answer is 0.0800320128 or in simplified form 0.08

Step-by-step explanation:

First you divide 12 ÷ 5.88 = 2.04081632653. Then you divide 20 ÷ 10.20 = 1.96078431373. Lastly you subtract 2.04081632653 - 1.96078431373 =  0.0800320128 or 0.08

1. 10 degrees below zero​

Answers

Answer:

-10 degrees

Step-by-step explanation:

Answer:

10 degrees below zero is a colloquial American expression that tries to be less scary than what it means (10 below zero = minus 10) by giving the impression of taking the math out of it for the benefit of the general public.

Find the area of this circle. Use 3 for T.
A = ar2
1 ft
[?] ft2

Answers

3 ft^2

A= 3(1)^2
A=3•1
A=3

which property proves triangles are congruentttt

Answers

Two triangles are congruent if and only if all corresponding angles and sides are congruent.

ANSWER: AAS

PLEASE HELP FOR QUESTION 4 I WILL MARK BRAINLIST READ IT CAREFULLY

Answers

hey let me tell you this you just never helped me and cheating is not good so yeah treat people the way you want to be treated and I saw your answers to other people it's not good to cheat just a piece of advice  

Consider the following statement:

"All right, isoceles triangles are special right triangles."

Do you agree or disagree with this statements? Provide a brief explanation

Answers

Answer:

"All right, isoceles triangles are special right triangles."

yes it agree this statement. as in right isosceles triangle always two angles are 45 and remaining 90.

The monthly rent for an 800 square-foot office is $975 for an 1100 square-foot office the rent is $1125 right in Savona equation to find the monthly rent for 1500 square-foot office

Answers

Answer:

the answer is 1325

Step-by-step explanation:

I need help ASAP! Find the area of the following shape.

Answers

hey i can’t see the picture, it’s too pixelated and like has lines all over it, maybe post it again if love to help :)

-4x+ 8x2 – 2x3 + 5
this is algebra

Answers

Answer:

-65

Step-by-step explanation:

use Khan academy it's very helpful

Answer:

14x+5

Step-by-step explanation:

4x+8x2-2x3+5

⬇️Simplify (for example 8x x 2 = 16x)

4x+16x-6x+5

⬇️ Collect like terms (bold)

20x-6x+5

⬇️

14x+5

Round 2.638 to the nearest tenth

Answers

Answer:

2.6

Step-by-step explanation:

It would be 2.6 because the 3 is the in the tenth place, therefore if it were to be a 5 or higher it would round up to 2.7

Given that 3 x − 5 y = 2 Find x when y = 8

Answers

3x-5(8)=2
3x-40=2
3x=40+2
3x=42
x=14

I need serious help!!

Answers

Answer:

26.85

Step-by-step explanation:

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