PLEASE HELP 100 POINTS

PLEASE HELP 100 POINTS

Answers

Answer 1

Step-by-step explanation:

the total surface area is the sum of the individual areas.

we have the ground area : a 6×6 square. = 36 cm²

and we have 4 equal triangles.

the area of a triangle is baseline × height / 2.

which is for each of these triangles

6 × 12 / 2 = 3 × 12 = 36 cm²

so, the total surface area of the pyramid is

36 + 4×36 = 5×36 = 180 cm²

Answer 2

Solution:

We know that:

Surface area of square pyramid = Sum of the area of the faces.

This means that:

Surface area of square pyramid = Area of square + 4(Area of triangle)

First, let's find the area of the triangle and square. Then, substitute them in the surface area equation to find the surface area of the pyramid.

Finding the area of a triangle:

1/2 x 12 x 6=> 6 x 6=> 36 cm²

Finding the area of a square:

6 x 6=> 36 cm²

Finding the surface area of the pyramid:

Surface area of square pyramid = Area of square + 4(Area of triangle)Surface area of square pyramid = 36 + 4(36)=> 36 + 144=> 180 cm²


Related Questions

Find the value of y and find m∠C and m∠D in the triangle given below.

y =

m∠C =

m∠D

Answers

Answer:

Step-by-step explanation:

Pls answer the question attached.
I WILL MARK U BRAINLIST

Answers

Area of figure = area of trapezoid + area of rectangle

A(rectangle) = 18 x 5 = 90 cm2
A(trapezoid) = (10+18) x (13-5) : 2 = 112 cm2

A(figure) = 112 + 90 = 202 cm2

Sofie claims to be a tasting expert. To test her abilities, someone bakes Sofie a cake using 3 of the following
ingredients:
Coffee
Nutmeg
Vanilla
Cinnamon
Sea salt
Ginger
Sofie's challenge is to identify which set of 3 ingredients was used in the cake. Suppose that Sofie is just
randomly guessing.
What is the probability that Sofie correctly identifies the set of 3 ingredients in the cake?

Answers

Summing all the ingredients to get the total sample size, we applied the formula for obtaining the probability which is

Pr(3) = 0.5

Probability

Given Data

Sample Space

CoffeeNutmegVanillaCinnamonSea saltGinger

Total Sample size = 6

Probability of identifying 3 ingredient used is

Pr(3) = 3/6

Pr(3) = 1/2

Hence the Probability is 0.5

Learn more about probability here:

https://brainly.com/question/25870256

Answer:

1/20

Step-by-step explanation:

From Kahn

Please help I don’t understand this problem!

Answers

the second one √72= 8.48 and the square root of √83=9.11 pi^2 = 9.86

when you put this in order by the decimal you get

8.48, 8.7, 9.11, 9.25, 9.86 which is really √72, 8.7, √83, 9.25, pi^2

A flag is 152 centimeters long.

How long would the flag measure in meters?

Enter your answer in the box.

Answers

Divide centimeters by 100. Answer is 1.52 meters.

The length of the flag measure in meters is,

⇒ 1.52 meters

What is Measurement unit?

A measurement unit is a standard quality used to express a physical quantity. Also it refers to the comparison between the unknown quantity with the known quantity.

We have to given that;

A flag is 152 centimeters long.

Now,

We know that;

1 centimeters = 1/100 meters

Hence, We get;

The length of the flag measure in meters is,

⇒ 152 centimeters

⇒ 152/100 meters

⇒ 1.52 meters

Thus, The length of the flag measure in meters is,

⇒ 1.52 meters

Learn more about the measurement unit visit:

https://brainly.com/question/777464

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1
1
15. Ratan bought 2 - m of iron wire and 3.
4
3
of copper wire.
a) What is the total length of wires he
bought?
b) How much more copper wire than
iron wire did he buy?

Answers

can u send me the question once more correctly so that I can help u

My username is Ayaan707.

^_^

Answer:

Total length of wire bought = 2 1/4 + 3 1/3

=9/4 + 10/3

=9*3/4*3 + 10*4/3*4 (LCM)

= 27/12 + 40/12

=67/12= 5 7/12metre is the answer

Ayaan707 avatar

difference btw copper and iron wire = 40/12 - 27/12

=13/12= 1 1/12 metre of copper wire

Step-by-step explanation:

HOPE IT HELPS , JENNY

+2+1+6 this is confusing what is the answer and explanation

Answers

Answer:

9

Step-by-step explanation:

hi I'm pretty sure this is really wrong but just kinda guessing

+2 is just a positive 2 so it's just known as 2

2+1+6 = 9

Answer: 9

Step-by-step explanation:because if its 2+1+6 then u get 2 and 6 add thats 8 then your 1 and its 9.

Lena pays $8.96 for every 3 ounces of coffee. If she were to
graph the relationship between the number of ounces of
coffee and the total cost, what would be the meaning of the
slope of this graph?

Answers

Answer:

A: the cost per pund of coffee

Step-by-step explanation:

You need x and y- values. So one would be the pound (x) and the other would be the cost (y)

factorise 3-x^2 can’t do it

Answers

Answer:

(√3 - x)(√3 + x)

Step-by-step explanation:

Use difference of two square formula:

a² - b² = (a - b)(a + b)

So a² = 3  ⇒  a = √3

and  b² = x²  ⇒  b = x

Therefore, 3 - x² = (√3 - x)(√3 + x)

Please help me ASAP!

Answers

Answer:

10

Step-by-step explanation:

2x+46+3x-6 = 90

5x + 40 = 90

5x = 50

x =10

The answer is 10 I think I’m right

What is the equation that can be used to find a percent of a number?

Answers

Answer:

Percent · Base = Amount.

Step-by-step explanation:

Use n for the unknown (percent).

Divide to undo the multiplication of n times 72.

Move the decimal point two places to the right to write the decimal as a percent.

Hope this helps!(:

Answer:

part = percent • whole

Step-by-step explanation:

Solve for missing angle

Answers

Hello!! Your answer would be 55''. If the other side is the same length, the this side is 55'' too.

Hope this helps!

Answer:

135!!!

Step-by-step explanation:

I need help with this question

Answers

Answer:

It's the second answer, hope this helps!

Number two because it states that the two triangles are overlapping and they are congruent. Also BC and DE are parallel which is also congruent.

Factoring
16x^5+20x^4-12x^3+24x^2

Answers

Hope this helps This is easy

Maddie has 18 flowers plants to put in her garden. she wants to plant them on 3 rows with an equal number on each row. how many rows will she plant​

Answers

Answer:

6

Step-by-step explanation:

18 ÷ 3 = 6

3+3+3+3+3+3=18

Answer:

6 per row

Step-by-step explanation:

If Maddie has to spread out a total number of flowers (18) over a set number of sections (3) you would be able to solve this by dividing the total into the sections, which would look something like 18/3.

Identify whether each equation has one solution, infinitely many solutions, or no solution.
2.3x - 7 = -7
3x = 5 + 3x
4(10 - x) = 40 - 4x
-7 + x = - (x + 7)

Answers

Answer:

1 solution

No solution

Infinitely many solutions

1 solution

Step-by-step explanation:

2.3x - 7 = -7

2.3x = 0

x = 0

1 solution

3x = 5 + 3x

0 = 5

No solution

4(10 - x) = 40 - 4x

40 - 4x = 40 - 4x

Infinitely many solutions

-7 + x = -(x + 7)

-7 + x = -x - 7

2x = 0

x = 0

1 solution

Answer:

he is right

Step-by-step explanation:

Rachel is building a fence around her yard. She wants to create a square area that will have an area of 150 m. If the fencing has been cut into 1m lengths, how much fencing will Rachel need?

Answers

Answer:

Rachel will need 49 meters of fencing.

Step-by-step explanation:

From Geometry we know that area of the square ([tex]A[/tex]), measured in square meters, is represented by the following formula:

[tex]A = l^{2}[/tex] (Eq. 1)

Where [tex]l[/tex] is the side length of the square, measured in meters.

The length of the square is now cleared:

[tex]l = \sqrt{A}[/tex]

If we know that [tex]A = 150\,m^{2}[/tex], then the side length is:

[tex]l =\sqrt{150\,m^{2}}[/tex]

[tex]l \approx 12.247\,m[/tex]

The total amount of fencing is equal to the perimeter of the square ([tex]p[/tex]), measured in meters, that is:

[tex]p = 4\cdot l[/tex] (Eq. 2)

If we know that [tex]l = 12.247\,m[/tex], then the perimeter of the square is:

[tex]p = 4\cdot (12.247\,m)[/tex]

[tex]p = 48.988\,m[/tex]

As fencing is cut into 1-m lengths, we need to round this number up to the nearest integer. That is:

[tex]p = 49\,m[/tex]

Rachel will need 49 meters of fencing.

Given that ¹/x=²/y+¹/z. express y interms of x and z. if x=5 and z=10. find the value of y leaving your answer as a mixed fraction​

Answers

Answer:

[tex]y=\dfrac{2xz}{(z-x)}[/tex]

Step-by-step explanation:

Given:

[tex]\dfrac{1}{x}=\dfrac{2}{y}+\dfrac{1}{z}[/tex]

[tex]\implies \dfrac{2}{y}=\dfrac{1}{x}-\dfrac{1}{z}[/tex]

[tex]\implies \dfrac{2}{y}=\dfrac{z-x}{xz}[/tex]

[tex]\implies 2xz=y(z-x)[/tex]

[tex]\implies y=\dfrac{2xz}{(z-x)}[/tex]

When x = 5 and z = 10:

[tex]\implies y=\dfrac{2(5)(10)}{(10-5)}[/tex]

[tex]\implies y=\dfrac{100}{5}[/tex]

[tex]\implies y=20[/tex]

(3c-5d)²EXPAND IT PLEASE

Answers

Answer:

9c^2 - 30cd + 25d^2

Step-by-step explanation:

(3c - 5d)^2

= (3c - 5d) (3c - 5d)

= [3c * 3c] + [3c * -5d] + [-5d * 3c] + [-5d * -5d]

= 9c^2 - 30cd + 25d^2

Pls answer i will mark u brainlist

Answers

Hello!

75,000 - 10% of 75,000

= 75,000 -(10*75,000)/100

=  75,000 -7,5 => 67,500

67,500 - 10% of 67,500

= 67,500- ( 10*67,500)/100

=67,500 - 6,75 = 60,750

60,750 -10%  of 60,750

= 60,750-( 10*60,750)/100

= 60,750 - 6,075 => 54,675

Solve for y.
2y2- 15y + 13 = 0
Write each solution as an integer, proper fraction, or improper fraction in simplest form. If
there are multiple solutions, separate them with commas.
Submit

Answers

Step-by-step explanation:

use sum and product method

I need help on 12 lol​

Answers

Answer:

68.58m

Step-by-step explanation:

hope it helps!!!

Prove that the difference between a two-digit number and the product of its digits will always be a 2 digit number.

Answers

Solution:

Let's take the greatest two-digit number as an example.

=> 99

Proving...

99 - (9 x 9) = Two-digit number=> 99 - 81 = Two-digit number=> 18 = Two-digit number

Since the difference between the greatest two-digit number and the product of its digits is a two-digit number, the difference between the other two-digit numbers '10, 11, 12.... 97, 98' and the product of its digits will always be a two-digit number, as the product of its digit is less than the two-digit number.

Hence proved. ✔✔

Step-by-step explanation:

Let the two-digit number is [tex]xy[/tex]

This can be written as:

10x + y, where 1 ≤ x ≤ 9 and 0 ≤ y ≤ 9

The difference between the number and product of its digits is:

d = 10x + y - xy

Rewrite this as below:

d = 10x - xy + y - 10 + 10 =

     x(10 - y) - (10 - y) + 10 =

     (x - 1)(10 - y) + 10

We see that:

0 ≤ x - 1 ≤ 8 according to the condition given above1 ≤ 10 - y ≤ 10 again according to the condition given above

The value of d is then:

0 + 10 ≤ d ≤ 8*10 + 1010 ≤ d ≤ 90Proved

87.125 is it rational or irrational? Explain how.

Answers

Answer:

87.125 is rational

Step-by-step explanation:

it is a rational number because it can be represented as a fraction

87.125 is a rational number

Eric runs every day. He can run 5 miles in 50
minutes. What is the unit rate that Eric runs in
one minute?

Answers

Answer:

10

Step-by-step explanation:

If he runs 50 minutes 50 divided by 5 is 10

0.1 mile in 1 minute

4Gopal is paid 20 000 rupees each month.
Jamuna is paid 19 200 rupees each month
Gopal and Jamuna are both given an increase in their monthly pay.
After the increase, they are both paid the same amount each month.
Gopal was given an increase of 8%
Work out the percentage increase that Jamuna was given.

Answers

I think the answer would be 11%.

please help me fast !!!!!

Answers

Answer:

2nd option

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

121.8° is an exterior angle of the lower triangle , then

∠ 2 + 17.3° = 121.8° ( subtract 17.3° from both sides )

∠ 2 = 104.5°

------------------------------------

∠ 2 is an exterior angle of the upper triangle , then

∠ 1 + 37.1° = 104.5° ( subtract 37.1° from both sides )

∠ 1 = 67.4°

please help 8th grade math giving brainlist

Answers

Answer:

Hope this helps! Try using the desmos graphing calculator. It is good for those problems.

Step-by-step explanation:

Which of the following are solutions to the equation below?
Check all that apply.
4x2 + 12x + 9 = 25
V5-3
O A. x=
16.
O B. x= -1

Answers

Answer:

see below

B.

Step-by-step explanation:

Answer:

Step-by-step explanation:

1 and -4

Enola has a toy car collection. She keeps some in a display case and the rest on the wall. 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case. What is the total number of toy cars in Enola's collection?

Answers

Give me brainliest if right: 106.95

The total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.  

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

She keeps some in a display case and the rest on the wall. 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.

Let x be the total number of toy cars in Enola's collection:

69% of x = x - 155

0.69x = x - 155

0.31x = 155

x = 500

Thus, the total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.

Learn more about the percentage here:

brainly.com/question/8011401

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