Mathematics High School

please help me

A triangular pyramid and its net are shown. Rain uses the calculations below to conclude that the surface area of the triangular pyramid is 238.5 square inches. 3 x 10 x 13) + ( x 10 x 8.7) 3 (65) + 43.5 238.5 Is Rain correct? Use the drop-down menus to explain your reasoning.

Answers

Answer 1

Answer:

Yes, Rain is correct

238.5 square inches

Step-by-step explanation:

Surface Area of a Triangular Pyramid,A = 1/2(a × b) + 3(1/2 × b × s)

= (1/2 × 10 × 8.7) + 3(1/2 × 10 × 13)

= 43.5 + 3(65)

= 43.5 + 195

= 238.5 square inches

The surface area of the triangular pyramid = 238.5 square inches

Please Help MeA Triangular Pyramid And Its Net Are Shown. Rain Uses The Calculations Below To Conclude

Answer 2

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the net attached:

Surface area = 3(1/2 * 10 * 12) + (1/2 * 10 * 8.7)

Surface area = 223.5 in²

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ5

Related Questions

Write equations for the horizontal and vertical lines passing through the point (4, -5).
horizontal line: 0
OO
Х
vertical line:

Answers

Answer:

Horizontal line: y=-5

Vertical line: x = 4

Step-by-step explanation:

As we have to determine the equations for the horizontal and vertical lines passing through the point (4, -5).

To determine the equation for the horizontal line passing through the point (4, -5), we must observe that the horizontal line will always have the same y-value regardless of the x-value.

Therefore, the equation of the horizontal line passing through the point (4, -5) will be: y=-5

To determine the equation for the vertical line passing through the point (4, -5), we must observe that the vertical line will always have the same x-value regardless of the y-value.

Therefore, the equation of the vertical line passing through the point (4, -5) will be: x=4

Hence:

Horizontal line: y=-5

Vertical line: x = 4

PLEASE HELP I WILL GIVE BRAINALIST

Answers

Answer:

1. 300%

2. 108

3. 60

Step-by-step explanation:

Hope this helps!

26. 33.33% is 37 percent of 11

27. 48%

28. 60 seeds

PLZZz HELP I WILL GIVE BRAINIEST

Answers

Answer:

Step-by-step explanation:

b = bouquet c = centerpieces

13b + 4c = 487

6b + 2c = 232

Can someone please help me on this ty!! ❤️

Answers

y=x*5

y=x divided by 16

5/6

10.

10/1

What is the constant of proportionality?

Answers

Answer:

B or 5

Step-by-step explanation:

25/5 =5

100/20 = 5

f(x) = 2x4 – 14x3 + 33x2 – 26x
Given that x = 3 + i is a solution of the equatio
f(x) = 0, solve f(x) = 0 completely.

Answers

Answer:

x = 0, 2, 5/2 ± 1/2i

Step-by-step explanation:

I'm not really sure what the question is asking but I'm going to assume you want to find the zeroes of the function.

0 = 2x^4 - 14x^3 + 33x^2 - 26x

~Factor

0 = x(x - 2)(2x² - 10x + 13)

~Set factors to equal 0 and solve

x - 2 = 0

x = 2

2x² - 10x + 13 = 0

~Use quadratic formula

x = 0, 5/2 ± 1/2i

Best of Luck!

Use compatible numbers to estimate the number 5,686.
What is the estimated version of 5,686 divided by 80?

Answers

Answer:

The esitmated version of 5686 divided by 80 is 5680/80.

Step-by-step explanation:

Both numbers are compatible, and they round correctly.

Thank you hope this helped!

Find the estimated monthly payment for the following simple interest loan. Round your answer to the nearest dollar.

Answers

Answer:

$184

Step-by-step explanation:

I looked at an APR calculator

Which expression is equivalent to (5^(3))^(2)

Answers

Answer:

Step-by-step explanation:

[tex](a^{m} )^{n}[/tex] = [tex]a^{mn}[/tex]

[tex](5^{3} )^{2}[/tex] = [tex]5^{3*2}[/tex] = [tex]5^{6}[/tex] = 15,625

HELP ME FIND SLOPE!! PLZ

Answers

Answer:

Step-by-step

the slope is 1, 1

explanation:

rise over run it is a positive slope btw

What is the radius of a circle with a diameter of 100

Answers

Answer:

Step-by-step explanation:

Hope this helps :)

Answer:50

Step-by-step explanation:

100 ÷ 2=50

What is the Domain and Range of this figure?

Answers

Domain = (-Infiniti,5]
Range = (-infinity, infinity)

CD and EF are parrellel to AB.They divide the area of triangle PAB into three equal parts. If PE=1, what is AC?

Answers

Answer:

AC is approximately 0.3178

Step-by-step explanation:

The given parameters are;

In ΔPAB

CD ║ EF ║ AB

The area of triangle ΔPEF = 1/3 × area of triangle ΔPAB

Therefore, PE = 1/√3·PA

PA = √3

We have area of ΔPCD = 2/3 × area of triangle ΔPAB

∴ PC = √(2/3) × PA = √(2/3) × √3

PC = √2

Therefore, AC = PA - PC = √3 - √2

AC = √3 - √2 ≈ 0.3178

5b-b-1 > or equal too-11

Answers

Answer:

-2.5

Step-by-step explanation:

5b - b - 1 ≥ -11

4b - 1 ≥ -11

+1 +1

4b ≥ -10

4/4 -10/4

b ≥ -2.5

Answer:

b ≥ [tex]-\frac{5}{2}[/tex]

Step-by-step explanation:

The expression:

5b - b - 1 ≥ -11

Now to solve this problem, we must be aware of some rules of inequality.

When dividing or multiplying with a negative value, the sign of the inequality must change;

5b - b - 1 ≥ -11

4b - 1 ≥ -11

Add + 1 to both sides;

4b -1 + 1 ≥ -11 + 1

4b ≥ -10

Now divided both sides by 4;

[tex]\frac{4b}{4}[/tex] ≥ [tex]\frac{-10}{4}[/tex]

b ≥ [tex]-\frac{5}{2}[/tex]

If a triangle has vertices A (-5, 1), B (3, 5) and C (2, -3),

A. find each side length

B. classify the triangle based on the sides

Answers

Answer:

Step-by-step explanation:

The regular price of a video game is $50. The game is on sale for 20% off the regular price.

Find the sale price of the game.

Find the total price, with a sales tax rate of 8%. (*Hint: Sales tax is an additional amount paid.)
HELP PLEASE!!!

Answers

Answer:

Sale Price:

50x-20%=10

50-10= 40

Total Price:

40x-8%=3.20

40+3.20= 43.20

Step-by-step explanation: If you encounter more problems like this, use the x and - method! Its easier to understand and a shorter method :)

.........................................................

Answers

Answer:

The volume of the figure is 126 cubic cm

Step-by-step explanation:

The figure consists of two rectangular prisms of dimensions 6 x 7 x 1 and 3 x7 x 4 respectively.

Calculate the first volume:

[tex]V_1=6~cm\cdot 7~cm\cdot 1~cm= 42~cm^3[/tex]

[tex]V_1= 42~cm^3[/tex]

Calculate the second volume:

[tex]V_2=3~cm\cdot 7~cm\cdot 4~cm= 84~cm^3[/tex]

[tex]V_2= 84~cm^3[/tex]

The total volume of the figure is the sum of both volumes:

[tex]V_t=V_1+V_2=42~cm^3+84~cm^3=126~cm^3[/tex]

The volume of the figure is 126 cubic cm

HELP THIS WAS DUE A LONG TIME AGO PLAS HELP MEH ILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!?!??!?!?!?!?!?

Answers

Answer:

Divisor

Step-by-step explanation:

Divisor
You are dividing by the 5, which means it is the divisor.
Hope this helps!

Please help! I don’t get this :(

Answers

Answer:

Step-by-step explanation:

An online DVD rental site charges a monthly membership fee of $10,
plus $4 per DVD that is rented. The relationship between the number of
DVDs rented and the total charge per month can be expressesd as t =
4d + 10, where d is the number of DVDs rented and t is the total
charge per month. What is the appropriate domain for this situation?
A. the set of all the positive real numbers
B. the set of all integers
C. the set of all positiveintegers
D. the set of all real numbers

Answers

Answer:

666

Step-by-step explanation:

Hideki found the solution for the equation below to be r = 66.6(5 + r) = 96 What mistake did Hideki make in solving the equation? What is the correct solution?
A.He did not distribute 6 to r; r = 11.
B.He did not divide both sides by 6; r = 16.
C.He did not multiply both sides by 6; r = 571.
D.He did not subtract 5 from both sides; r = 15.

Answers

Answer:

Step-by-step explanation:

Answer:

See for the answer below:

Step-by-step explanation:

The answer is A.

Mia and Merle together have $285. Mia wins $25 from Merle and then finds she has 4 times as much as Merle. How much did Mia have at first?

Answers

45.60$ i belive

explained: i used the desmos calculator lol

Simplify
-8 - 6x – 5 + 2x

Answers

Answer:

-13 - 4x

Step-by-step explanation:

Find the measure of the indicated angle to the nearest degree

Answers

Answer:

14°

Step-by-step explanation:

Using inverse tangent and the opposite over adjacent you can find this. Tan*-1(8/33) and then just round up

I can’t find an answer anywhere

Answers

Answer:

Step-by-step explanation:

hope it helps

Just find x and y coordinates x coordinates on the horizontal axis and y coordinates on vertical axis

!!!HELP ME WITH THIS QUESTION PLEASE!!!

Answers

Answer:

Step-by-step explanation:

Can you mark me brailiest tho...?

this is a bit tricky question cause in some casses it is coming wrong but I guess it is option a

Please solve this 8-5x=4x-1

Answers

Answer:

x = 1

Step-by-step explanation:

Answer: x=1

Step-by-step explanation:

8-5x=4x-1--> since there are no like terms, we isolate the x8=9x-1 --> add 5x on both sides9=9x --> add 1 on both sidesx=1 --> divide by 9 on both sides

90 POINTS- Please help with this geometry question! I have the answer because I assumed it was congruent, but I don't have the statement reasons.

Answers

Answer:

A Δ DOC = 6 in²

Step-by-step explanation:

Look at the attached graph

∵ ABCD is a trapezoid with legs AB and CD

∴ AD // BC

In Δs ABC and DCB

∵ BC is a common base

→ The heights of the Δs drawn from the points A and D to the base

BC are equal because the line joining A and D, AD is parallel to

the base BC

∴ Their heights are equal

→ Triangles of the same base and equal heights are equal in areas

∴ A Δ ABC = A Δ DCB

∵ A Δ ABC = A Δ ABO + A Δ BOC

∵ A Δ DCB = A Δ DOC + A Δ COB

→ Equate their right sides

∴ A Δ ABO + A Δ BOC = A Δ DOC + A Δ COB

∵ A Δ BOC = A Δ COB ⇒ common triangle

∴ A Δ ABO = A Δ DOC

∵ A Δ ABO = 6 in²

∴ A Δ DOC = 6 in²

Find the solution of the system of equations.

First equation,

4x – 3y = -13

Second equation,

-2 + 6y = -44

Answers

Answer:

the answer is Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(−17/2, -7)

Equation Form:x=-17/2 y=-7

Answer:

Step-by-step explanation:

I will answer it if the other person doesnt

please help. it would be appreciated.

Answers

Answer:

Step-by-step explanation:

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please help meA triangular pyramid and its net are shown. Rain uses the calculations below to conclude that the surface area of the triangular pyramid is 238.5 square inches. 3 x 10 x 13) + ( x 10 x 8.7) 3 (65) + 43.5 238.5 Is Rain correct? Use the drop-down menus to explain your reasoning.​

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please help me

A triangular pyramid and its net are shown. Rain uses the calculations below to conclude that the surface area of the triangular pyramid is 238.5 square inches. 3 x 10 x 13) + ( x 10 x 8.7) 3 (65) + 43.5 238.5 Is Rain correct? Use the drop-down menus to explain your reasoning.