Answers
Answer:
[tex]\text{a. }128\:\mathrm{cm^3},\\\text{b. }4:1,\\\text{c. }179.4\:\mathrm{cm^2};\:44.8\:\mathrm{cm^2}[/tex]
Step-by-step explanation:
The volume of a square pyramid is given by [tex]V=\frac{1}{3}\cdot s^2\cdot h[/tex]
Since pyramids A and B are similar, their corresponding side lengths are proportion. Since the base edge of B is half that of A's, each dimension of B will be half of A. Since the formula for volume requires the multiplication of three dimensions, the volume of pyramid A will be [tex]2^3=8[/tex] times larger than the volume of pyramid B.
Thus, the volume of pyramid A is equal to [tex]16\cdot 8=\boxed{128\:\mathrm{in^3}}[/tex]. You can also find the dimensions of pyramid A and use the formula.
The surface area consists of the sum of all areas of the 2D shapes that make the figure. Since all dimensions of pyramid A are twice the dimensions of pyramid B, the ratio of the surface area of pyramid A to pyramid B is [tex]2^2:1=\boxed{4:1}[/tex]
The surface area of a square pyramid can be found by adding the areas of the three triangles and one square that make it up. As one long messy formula, that becomes [tex]2s\sqrt{\left(\frac{s}{2}\right)^2+h^2}+s^2[/tex] for a square pyramid with base edge [tex]s[/tex] and height [tex]h[/tex].
Plugging in values, we get the following:
[tex]A_a\approx \boxed{179.4\:\mathrm{cm^2}},\\A_b\approx \boxed{44.8\:\mathrm{cm^2}}[/tex]
Related Questions
hello please help i’ll give brainliest
Answers
Help plsss anyone help plss
Answers
Answer:
B. experimental probability
Step-by-step explanation:
It wasn't A because the coin was flipped making it an experiment.
Option C is just wrong.
So that leaves you with option B as your answer.
Hope this helps.
Please I have 15 min!!!!!
Answers
Answer:
False
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
please help! will give brainliest
Answers
Answer:
Step-by-step explanation:
803.8 in
In a board game, each player must roll a number cube and spin a spinner. The number cube is labeled with the numbers 1 through 6 and the spinner
consists of 8 equal parts shown below. What is the probability you will roll a 3 and land on red?
1/10
3/8
1/24
2/3
Answers
Answer:I think the answer is 5/12.
Step-by-step explanation:
Sorry if I am wrong. :) but it should be correct.
The radius of a circle is 2 meters. What is the circle's area?
(use 3.14 for π)
Answers
Answer:
it is approximately 12.57meters
Answer:
12.56 meters
Step-by-step explanation:
The area of a circle is πr², where r is the radius of the circle.
First we square the radius, which is 2. 2²=4.
Now our area is 4π.
Using 3.14 for π, we can say the area is 4 × 3.14, which is equal to 12.56
There are 6 marbles in a bag. are blue and 2 are red. What is the probability of
drawing 4 marbles that are all blue?
Answers
3 is to 2 is the probability of drawing 4 marbles that are all blue.
An isosceles triangle has base angles
that each measure 52°
Which equation can be used to find x, the measure of
the third angle of the isosceles triangle in degrees?
A) 2X = 52
D) $2X = 180
B) 52 + 2x = 180
ED 52 + x = 180
CD 2x52 180
None of the above
Ode
SK drownywhere an Al
Answers
Answer:
None of the above
Step-by-step explanation:
Measure of one base angle: 52°
Measure of the other base angle: 52°
Measure of the third angle: x
Sum of the measures of the three angles: 180°
Equation:
x + 52 + 52 = 180
x + 104 = 180
Answer: None of the above
What is the range of 220,2100,260,5160.
Answers
Answer:
range is the biggest number minus the smallest number
Step-by-step explanation:
so 5160-220=4940
Kelly was baking bread but could only find her ⅛ cup measuring cup. She needs ¼ cup sugar, ¾ cup whole wheat flour, and ½ cup all-purpose flour. How many ⅛ cups will she need for each ingredient?
Answers
Answer:
Number of 1/8 cups of sugar needed = 2
Number of 1/8 cups of whole wheat flour needed = 6
Number of 1/8 cups of all purpose flour needed = 4
Step-by-step explanation:
Recipes Kelly needs:
Sugar = 1/4 cups
Whole wheat flour = 3/4 cups
All purpose flour = 1/2 cups
She could only find her ⅛ cup measuring cup.
How many ⅛ cups will she need for each ingredient?
Number of 1/8 cups of sugar needed = cups of Sugar needed / 1/8 cups
= 1/4 ÷ 1/8
= 1/4 × 8/1
= 8/4
= 2
Number of 1/8 cups of sugar needed = 2
Number of 1/8 cups of whole wheat flour needed = cups of whole wheat flour needed / 1/8 cups
= 3/4 ÷ 1/8
= 3/4 × 8/1
= 24/4
= 6
Number of 1/8 cups of whole wheat flour needed = 6
Number of 1/8 cups of all purpose flour needed = cups of all purpose flour needed ÷ 1/8 cups
= 1/2 ÷ 1/8
= 1/2 × 8/1
= 8/2
= 4
Number of 1/8 cups of all purpose flour needed = 4
Suppose an employee made $50,000 in 2015 and received a 2% raise at the end of the year. What will he or she make in 2016?
Answers
Please answer quickly with explanation. I am in need of major help. PLEASE NO FILE DOWNLOADS EITHER!!
Suppose you work at a local radio station. You are in charge of a $180 budget for
new tapes and CDs Record companies will give you 21 promotional (free) CDs. You
can then buy tapes for $8 and CDs for $12.
a. Write a linear inequality that models this situation.
Answer:
b. Graph the inequality. Make sure to use proper scales and to label your axes.
Is (8,9) a solution of the inequality? Explain.
Answers
Please help i will give all my points away if corrected
Answers
Answer:
its not loading
Step-by-step explanation:
Answer:
A.
C.
D.
B.
A.
A.
D.
B.
Step-by-step explanation:
an explanation please? I don’t even need the answer I’m just confused on what to do with the extra number knowing how to multiply with the 2 other numbers!
Answers
Answer:
Area = 21 un²
Explanation down Below!
Step-by-step explanation:
You don't need to worry about the 8 at all at this point
To find the area of a parallelogram you need to do base x height.
The height is 7, and the base of that height is 3.
7 x 3 = 21
Let me tell you why you do base x height.
if you cut out the triangle from the top and place it at the bottom it will become a rectangle.
The formula for a rectangle is base x height so this is why the formula works.
There is a picture for your reference.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
geometry- please help. like seriously if u know how to do it, it would help me so much and i’d mark u brainliest
Answers
Answer:
the arc length is 555.17 cm
Step-by-step explanation:
The equation to solve for the arc length is: s = rΘ, where r represents the radios and the Θ represents radians. In order to solve this you need to convert degrees into radians with the formula: radians = degrees ·
You want to find the distance the golf club travels when the golfer swings the club.
First you need to subtract 25° from 360°
360° - 25° = 335°
now you need to convert 335° into radians
radians = degrees ·
radians = 335° · you multiply 335° by
radians = 335/180 then you simplify
radians = 67/36
335° = 67[tex]\pi[/tex]/36
Now we plug everything we know into the equation s = rΘ
s = rΘ
s = 95 (67[tex]\pi[/tex]/36) first multiply 67 by 3.14
s = 95 (210.38/36) divide 210.38 by 36
s = 95 (5.843888889) and multiply 95 by 5.843888889
s = 555.1694444 *remember to simplify to the nearest hundredth
s = 555.17 cm
hope this helps! if u have any questions, let me know!
need help on a systems of equations word problem
Answers
Answer:
brazil: 12.8 portugal: 14.769230769230769 (you need to round it)
Step-by-step explanation:
just divide.
explain why 13x +1 = 11x+9
Answers
Answer:
x=4
Step-by-step explanation:
13x+1 = 11x+9
13x-11x = 9-1
2x = 8
x = 4
Answer:
53 = 53
Step-by-step explanation:
13x+1=11x+9 13(4)+1=11(4)+9
13x=11x+8 52+1=44+9
2x=8 53=53
x=4
4. Suppose 11 out of 17 students said they were attending the football game. How many students out of 875 would you expect to attend the football game?
Please help me out ill mark brainliest
Answers
We have to basically multiply:
11/17 x 475
And simplifying that we get
307.35
And since there can't be .35 person
So out final answer is 307
pls pls brainlist
what is the factional value of A
Answers
Answer:
Since a fraction represents a division, we should do that division to know what the value of a fraction is. The larger numerator, the larger the value of the fraction will be; and the larger denominator, the smaller the fraction will be. ...
Step-by-step explanation:
Answer:
What they said
Step-by-step explanation:
What is the slope of a line perpendicular to the line whose equation is 3x-3y=543x−3y=54. Fully simplify your answer.
Answers
Help me with this please!!!!!!!
Answers
Answer:
The answer is 8.54
Between 0900 and 10 30, a man walks a distance of 27 km. What is his average speed in km/h?
Answers
Answer:
18
Step-by-step explanation:
0900 to1030 is 1.5 h
Take 27/1.5
Then you will get the answer
anyone know the answer
Answers
Answer:
the third one
Step-by-step explanation:
hope this helps
Find the volume of this object.
3
5cm
114cm
HELP ME
PLEASE IM DESPERATE
V = [?]cm3
6cm
Answers
Answer:
Half of 6 is 3(new radius)
3^3 = 9
9 x 3.14 = 28.26(area of circle)
Now we multiply by height
28.26 x 5 = 141.3
Now we divide by 3 since its part for the formula of finding the cone's volume:
141.3 x 1/3(basically just dividing by 3) = 47.1
Now let's find the volume of the cylinder:
3^3 = 9, 9 x 3.14 = 28.26
28.26 x 14 = 395.64
Now let's add the given volumes:
395.64 + 47.1 = 442.74 cm^3 is your answer.
find two numbers if their sum is 3/5 and their difference is 7 1/5
Answers
Answer:
A = 3 + 9/10
B = -(3 + 3/10)
Step-by-step explanation:
We have two numbers, A and B, such that:
A + B = 3/5
A - B = 7 + 1/5
To solve this, we first need to isolate one of the variables in one of the equations, I will isolate A in the first equation:
A = 3/5 - B
Now we can replace this in the other equation:
A - B = 7 + 1/5
(3/5 - B) - B = 7 + 1/5
3/5 - 2*B = 7 + 1/5
-2*B = 7 + 1/5 - 3/5
-2*B = 7 - 2/5 = 35/5 - 2/5 = 33/5
B = -(33/5)/2 = -33/10 = - 30/10 - 3/10 = -3 - 3/10 = -(3 + 3/10)
Now that we know the value of B, we can use the equation
A = 3/5 - B
To find the value of A:
A = 3/5 - ( -(3 + 3/10))
A = 3/5 + (3 + 3/10) = 6/10 + 3 + 3/10 = 3 + 9/10
The numbers are:
A = 3 + 9/10
B = -(3 + 3/10)
PLEASE HELP ME!!! THANK YOU
i really need help
The area of a right triangle is 10,710 square inches. The height of the right triangle is 612 inches.
The length of the hypotenuse of the right triangle is ___ inches.
Answers
Answer:
5355
Step-by-step explanation:
if the height is 612 and traignle has 3 sides so then 10710 is in the total so it has to be big and if the right triangle is 90 degrees
it equals to 5355
Answer:
5355
Step-by-step explanation:
I hope this help, good luck
y = 3(3)
х
у
-1
S
0
1
2.
3
Answers
Answer:
what this doesnt make sense ? try to fix ur question
Step-by-step explanation:
Solve 5x/3 + 2/5 = 1
x = 9/25
x= 25/9
x= 3/25
x = 9/27
Answers
Answer:
[tex]x=\frac{9}{25}[/tex]
x = 0.36
Step-by-step explanation:
5x/3 + 2/5 = 1
5x/3 + 2/5 - 2/5 = 1 - 2/5
[tex]\frac{5x}{3} = 0.6[/tex]
5x/3 × 3 = 0.6 × 3
5x = 1.8
5x ÷ 5 = 1.8 ÷ 5
[tex]x=\frac{9}{25}[/tex]
x = 0.36
pleaseee helpp!! no links or i’m reporting
Answers
Answer:
Use math away website lol
Step-by-step explanation:
What is 5.704 expressed to two decimal places?