Answer:
26.6 m
Step-by-step explanation:
The formula for the volume of an hemisphere is given as:
The volume of a hemisphere = (2/3)πr³ cubic units.
Volume = 4960m³
Hence,
4960 = 2/3πr³
4960 = 2 × πr³/3
Cross Multiply
4960 × 3 = 2πr³
Divide both sides by 2π
4960 × 3/2π = 2 πr³/2π
r³ = 2368.2255532
We would cube root both sides.
cube root(r³) = cube root(2368.2255532)
r = 13.329310588 m
Approximately = 13.3m
The formula for diameter = 2 × r
Diameter of the hemisphere = 2 × 13.33m
= 26.6 m
Answer:
26.7 is the right answer.
Step-by-step explanation:
Let v= (-5,-2) and w= (-10,4) which of the following is true?
Someone please help! I’ll give brainliest!!
Answer:
The correct answer is [tex]108\pi (yd^3)[/tex].
Step-by-step explanation:
The formula to find a volume of a cone is [tex]\pi r^2*\frac{h}{3}[/tex], where [tex]r[/tex] represents the radius and [tex]h[/tex] represents the height of the cone. By substituting the values in, you'll get that the volume of the cone is equivalent to [tex]\pi*6^2*\frac{9}{3}[/tex] = [tex]36\pi * 3[/tex] = [tex]108\pi (yd^3)[/tex], so that is the answer.
Answer:
108 cu. yd.
Step-by-step explanation:
V = [tex]\frac{\pi r^{2} h}{3}[/tex] = [tex]\frac{ \pi 6^{2} *9}{3}[/tex] = [tex]\frac{36(9)\pi }{3}[/tex] =[tex]\frac{ 324\pi }{3}[/tex] = 108 cu. yd.
Here is a rectangle
Work the perimeter of the rectangle
Answer:
42
Step-by-step explanation:
4+4+4+4+6+6+6+6 = 42
Find the median, mean, and range.
68, 82, 43, 39, 83
Answer:
mean is 63 median is 68 and range is 44
help pls i’ll mark brainliest:)
Answer:
166mm
Step-by-step explanation:
i am smart
Answer:
146 mm²
Step-by-step explanation:
First, let's start with the formula for the surface area of a rectangular prism.
A = 2(wl + hl + hw)
Plug in everything that you know.
A = 2[(4 · 5) + (7 · 5) + (7 · 4)]
Simply the equation.
A = 2(20 + 35 + 28)
A = 2(73)
A = 146
What is the answer to this. Correct answer will get brainliest.
How many solutions does the equation
2 + 6(2 - 4) = 3x 18 + 3x have?
A infinite
B 0
C 1
D 2
In a computer catalog, a computer monitor is listed as being 27 inches. This distance is
the diagonal distance across the screen. If the screen measures 15 inches in height,
what is the actual width of the screen to the nearest inch?
Answer:
The actual width of the screen = 22.45 inches
Step-by-step explanation:
From the above question, we are given the following parameters
Diagonal = 27 inches
Height (Length) = 15 inches
Width = ???
To solve this question we would be using Pythagoras Theorem.
Diagonal² = Length² + Width²
Width² = Diagonal² - Length²
Width = √Diagonal² - Length²
Width = √27² - 15²
Width = √729 - 225
Width = √(504)
Width = 22.449944321 inches
Approximately to the nearest inch,
The actual width of the screen = 22.45 inches
How fast can my mom run if its 12:00 in the morning
James walked 15 blocks. she stopped at the store 3/5 of the way into her walk. how many blocks did she walk to the store?
Answer:
9 blocksStep-by-step explanation:
3/5 of the way = distance to the store3/5*15 = 9 blocksShe walked 9 blocks to the store
Answer:
9 blocks
Step-by-step explanation:
In 2010 a small college had an enrollment of 9500 students. The declared majors are detailed in the table below.
Step-by-step explanation:
42. 9025 (95% of 9500 or 0.95 x 9500)
43. 279 ( 279 + 861= 1140; 1140 is 12% of 9500 or 0.12 x 9500)
helpppppppppp pls ill brainlest
CHOOSE ALL THE ANSWERS THAT APPLY.
which of the following fossils are trace fossils?
shell
footprint
tooth
bone
amber
PLZ HELP!! GIVING OUT 15 POINTS AND BRAINLIEST!!
Answer:
The answers are shell tooth bone
Step-by-step explanation:
Answer:
footprint, shell,
Step-by-step explanation:
trace fossils are non physical fossils. since shells are imprints instead of actual shell fossils, shell and footprint is the correct answer
Which expressions are equivalent to 2.25x ?
Answer:
Step-by-step explanation:
2.25x has an infinite number of equivalents.
Three are as follows: (225/100)x, (9/4)x and (0.00225/0.001)x
ILL MARK BRAINIEST IF YOU DO THIS RIGHT!!! DO 9 AND 10!!!
If you can answer this, please help !
Answer:
the total of angle's in traingle is 180
so 85+53+c=180
c=180-138
c=42
Step-by-step explanation:
180° = m∠A + m∠B + m∠C
180° = 85° + 53° + m∠C
180° = 138° + m∠C
m∠C = 180° - 138°
= 42°
#CMIIW
Find the perimeter of the figure to the nearest hundredth.
Answer:
61.68cm
Step-by-step explanation:
Perimeter of the semicircle = 2πr
r is the radius = 12/2 = 6cm
Perimeter of the semi circle = 2(3.14)(6)
Perimeter of the semi circle = 37.68cm
Adding the remaining sides of the polygon
Perimeter of the figure = 37.68+ 10 + 6 + 8
Perimeter of the figure = 61.68cm
Hence the perimeter of the figure is 61.68cm
5x-3=19? Answer for Brainliest
Answer:
x = 4.4
Step-by-step explanation:
I'm going to assume you want to solve for x so here we go.
You need to work backwards for this equation, and whatever you do to the LHS, you do to the RHS.
First, you need to remove the minus 3, which means that on both sides, you add 3. Adding three on the LHS makes the -3 disappear, and adding 3 on the RHS makes the 19 go to a 22.
Your equation is now 5x=22.
Since 5x means 5 × x, to get rid of it, you need to divide 5x by 5. Doing it to the LHS will make the five disappear, and doing it to the RHS will make it go to 22 ÷ 5 which equals 4.4
Therefore, x = 4.4
Joseph's workshop is 12 feet by 7 feet. If the drawing of the workshop has a scale of 1inch = 2 feet, what are the dimensions of the drawing? (enter your answer with a comma separating the two numbers)
Answer:
6, 3.5.
Step-by-step explanation:
Start with the 12 foot measurement. 1 inch of the drawing represents 2 feet, so divide 12 feet by 2 to find out how many inches represent 12 feet. 12/2 is 6. Do the same with the 7 foot measurement. 7/2 is 3.5, so the drawing of the 7 foot side will be 3.5 inches.
James can purchase an item from several different stores or online. Which of the following is the
best buy for him?
F )Buy on line for $20 plus pay shipping and handling costs of $6
G )Buy on line for $18 plus pay shipping and handling costs of $5
H )Buy at a local store where the item's regular price is $24 but is on sale for 20% off.
J )Buy at a local store where the item's regular price is $23 but you have a $5 off coupon
A cone has radius 3 and height 4. Your classmate calculates its surface area as shown:
Explain your classmate's error.
S. A. = pi(5)^2 + pi(3)^2 = 25pi + 9pi = 3pi
Answer:
Lateral surface area of cone = π(3)(5)
Lateral surface area of cone = 47.1 unit² (Approx.)
Step-by-step explanation:
Given:
Radius of cone = 3 unit
Height of cone = 4 unit
Find:
Lateral surface area of cone
Computation:
Slant height of cone = √Radius² + Height²
Slant height of cone = √3² + 4²
Slant height of cone = √9 + 16
Slant height of cone = √25
Slant height of cone = 5 unit
Lateral surface area of cone = πrl
Lateral surface area of cone = π(3)(5)
Lateral surface area of cone = (3.14)(15)
Lateral surface area of cone = 47.1 unit² (Approx.)
Someone please help
Please
Please
Please
Answer:
need more information
Step-by-step explanation:
all you told us is what's happening in this picture. that's why you cant get help.
An archiect is building a model of tennis court for a new client. the court is 6 inches wide and 13 inches long an official tennis court is 36 feet wide. what is the length of a tennis court?
Answer:
78 feet
Step-by-step explanation:
6/36=13/x
6×x=13×36
6x=468
6x/6=486/6
x=78
Angle Relationship Equations ... pose help I don’t do this but my friend has to so help
3)
26 + ( 3x + 1 ) = 180
27 + 3x = 180
3x = 180 - 27
3x = 153
x = 153/3
x = 51
___________________
4)
( 4x + 1 ) + ( 3x + 4 ) = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 175/5
x = 25
Answer:
3) [tex]x=51[/tex]
4)[tex]x=25[/tex]
Step-by-step explanation:
[tex]3) ~ 3x+1+26=180\\ \\ ~ (linear ~pair)[/tex]
[tex]3x+27=180\\~ ~ -27 ~ ~-27[/tex]
[tex]subtract ~ -27 ~ from ~ both ~ sides[/tex]
[tex]\frac{3x}{3} =\frac{153}{3}[/tex]
[tex]x=51[/tex]
--------------------------
[tex]4)~ 4x+1+4+3x=180[/tex]
[tex]7x=180-5[/tex]
[tex]x=\frac{175}{7}[/tex]
[tex]x=25[/tex]
----------------------------
hope it helps...
have a great day!!
Add ( √3 + 6√7 ) and (2√3 - 5√7 )
Answer:
3√3 + 1√7
Step-by-step explanation:
Answer:
7.84 or 3√3+√7
Step-by-step explanation:
What equation do I write for a line that has a y intercept of 2 and is perpendicular to y=2/3x+4?
Answer:
y = -3/2x + 2
Step-by-step explanation:
The equation has the format y = mx + b where m is the slope and b is the y-intercept.
The question gives you the y-intercept, so b = 2.
As for the slope, you need the fact that perpendicular lines have slopes that are opposite ("negative") reciprocals of each other.
The slope of the line given in the question is 2/3. The opposite reciprocal of 2/3 is - 3/2.
The equation for the line is y = -3/2x + 2
Help please! Thanks!!!
To get this answer, we'll use the cosine ratio
cos(angle) = adjacent/hypotenuse
cos(A) = AC/AB
cos(35) = b/c
cos(35) = b/280
280*cos(35) = b
b = 280*cos(35)
b = 229.362572400918
b = 229
When you use your calculator, make sure it's in degree mode.
A football is thrown into the air. The height, h(t), of the ball, in metres, after t seconds is modelled by h(t) 4.9(t1.25)29.
1.How high off the ground was the ball when it was thrown?
2.What was the maximum height of the football?
3.How high was the ball at 2.5s?
4.Is the football in the air after 6s?
5.When does the ball hit the ground?
Answer: how high off the ground was the ball when it was thrown
Step-by-step explanation:
15 cm
30°
B
OAB is a sector of a circle, centre O.
The radius of the circle is 15 cm.
The angle of the sector is 30°.
Calculate the area of sector OAB.
Leave your answer in its simplest form.
Step-by-step explanation:
change the angle to radian
then use formula 1/2 × π × radius square
I'll give brainliest answer plzz help me
Answer:
Maybe the 20-x/20 part is wrong. Maybe it's 10-x/10?
Step-by-step explanation:
I'm sorry I dont really know so I hope this helps you!