find surface area of this cone
Answer:
SA = 200π cm²
Step-by-step explanation:
The surface area is calculated as
SA = area of base + area of curved surface
= πr² + πrs ( r is the radius and s the slant height )
Using Pythagoras' identity in the right triangle to find s
s² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )
s = [tex]\sqrt{289}[/tex] = 17
SA = π × 8² + π × 8 × 17
= 64π + 136π
= 200π cm²
Ethan's mom tried a new bean soup recipe. She used 2 cups of black beans and 5 cups of kidney beans. The family loved it, so she made a larger batch to freeze with 4 cups of black beans and 12 cups of kidney beans. Did the two batches have the same ratio of black beans to kidney beans?
Answer:
no the amount of Kidney beans is not proportional to the amount of black beans
i’ll give brainliest, just help me please :)
Answer:
V = 408 SA = 378
Step-by-step explanation:
To find the volume, you need to first find out the area and multiply it by overall length.
A = 1/2 (6)(8)
= 24
Volume = 24 x 17
= 408
Surface Area
SA = Front and Back + Right Side + Left Side + Bottom
= 2 [1/2 (6) (8)] + (17 x 10) + (3 x 8) + (17 x 8)
= 2 (24) + 170 + 24 + 136
= 48 + 170 + 24 + 136
= 378
if a=3 what does 3(6-)=
Answer: -18
Step-by-step explanation:
3 x -6 = 18
Answer:
3(6-) = 18-
Step-by-step explanation:
help please, i don’t understand these’s type of problems
please give answer i gives biranlist
Answer:
The answer should be 54, lmk if it works
please solve this :)
Answer:
Step-by-step explanation:
hello :
cos66° = x/14
x= 14× cos66°
x= 14× 0.41
x=5.74
of 10
Sarah was thinking of a number. Sarah doubles it, then adds 4
to get an answer of 97.7. What was the original number?
Answer:
46.85
Step-by-step explanation:
subtract 4 then divide it by 2
the photo contains the question
What is 4 times 2 please I’m in need of an answer
Answer:
8 should be the answer.
Step-by-step explanation:
4 × 2 = 8
Is this line an accurate line estimate of
best fit for the data?
Yes
No
Answer:
no.........................
6/7x = 7/8 what is w
Answer:
x = 1 1/48
Step-by-step explanation:
6x/7 = 7/8
cross-multiply:
48x = 49
x = 49/48
x = 1 [tex]\frac{1}{48}[/tex]
Answer:
X = 49/48
Step-by-step explanation:
I know that’s the answer because I did the math so it’s right, and a good night!
Solution to the equation y=1/4x +8
Answer:
x = 4 y − 32
I hope it's correct
The cost of chartering a bus for the great america trip was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What was the total cost of chartering the bus?
Answer:
i think the answer is $270.00 if this is right mark me brainlist
PLS HELPP I REALLY NEED HELP ON THIS I WILL MARK YOU BRAINLIEST
Answer:
b
Step-by-step explanation:
find the value of x.
Pls help 30 points ASAP
Answer:
the answer is A
Step-by-step explanation:
What are the multiples of 4 and 6?
Answer:
Step-by-step explanation:
For example, to find the common (positive) multiples of 4 and 6, we might list: Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, … Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, … The numbers 12, 24, 36, and 48 appear on both of these lists, and more would appear if the lists were longer.
Answer:
6: 6; 12; 18; 24; 30; 36; 42; 48; 54; 60; 66; 72
4: 4; 8; 12; 16; 20; 24; 28; 32; 36; 40; 44; 48
Step-by-step explanation:
Suppose the heights of the members of a population follow a normal
distribution. If the mean height of the population is 65 inches and the
standard deviation is 3 inches, 68% of the population will have a height within
which range?
A. 59 inches to 71 inches
B. 53 inches to 77 inches
C. 62 inches to 68 inches
D. 56 inches to 74 inches
Answer:
C; 62 to 68 inches
Step-by-step explanation:
Here, we want to get the population range that is having a probability of 68%
From the empirical rule, a measure of 1 standard deviation above the mean, with 1 standard deviation below the mean will give a total percentage of 68%
From the question;
1 standard deviation above the mean is 65 + 3 = 68
1 standard deviation below the mean is 65-3 = 62
so the range of the height of the population is 62 to 68 inches
HELP DUE IN 10 MINS!
Find the missing side measurement.
Your answer should be a simplified radical or a whole number. (no decimals allowed)
x =
Answer:
x = 20 unitsStep-by-step explanation:
Given the right triangle with one side unknown
Use Pythagorean Theorem to find the value of x:
x² = 16² + 12²x² = 256 + 144x² = 400x = √400x = 202x+y=21;y=-2x+21
please hurry I need this straight away
Step-by-step explanation:
2x + y = 21
Solving
2x + y = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 21 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 21 + -1y
2x = 21 + -1y
Divide each side by '2'.
x = 10.5 + -0.5y
Simplifying
x = 10.5 + -0.5y
How do u find the answer
Answer:
ok we dont know what for net time if you where going to post a picture with is press the paperclip button and choose what photo you want.
Step-by-step explanation:
Please mark as brainllest really need this one. have a nice week
[o]-[o]
\___/
The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of
airtime usage. If Juanita uses x minutes of airtime, what is an equation that can be
used to determine her monthly cell phone bill (C)?
Answer:
15xc + 0.20x(X)
Step-by-step explanation: Looks complex but hope this helps
Paragraph One
He drives a racecar 80 miles per hour. He motivates audiences of hundreds. He's earned awards for his performance on and off the racetrack, and he's traveled the country to compete. Did we mention that he's 13 years old? One look at his accomplishments and it is easy to see that Noah "Little Gator" Cornman is on the fast track to success. "Little" might be a part of his nickname, but it does not describe his determination to succeed and his heart to make a difference for kids like him.
In paragraph 1, which sentence implies that the author is impressed with the teen's accomplishments?
He drives a racecar 80 miles per hour.
He motivates audiences of hundreds.
Did we mention that he's 13 years old?
He's traveled the country to compete.
Answer:
Did we mention that he's 13 years old?
Step-by-step explanation:
because he inspire alot of people by driving a racecar 80 mph that is fast for a kid at his age.
Answer:
Did we mention that he's 13 years old?
Step-by-step explanation:
Did this in middle school 1 year ago it right
5X > 100 what is x
Help me pls
Answer:
x > 20
Step-by-step explanation:
5X > 100
Divide each side by 5
5x/5 > 100/5
x > 20
Answer:
x= 20
Step-by-step explanation:
hope this is useful! have a wonderful day. God Bless you!
PLEASE ANSWER WILL GIVE POINTS!!!!!!!!!!!
Given:
The figure of a right triangle ABC.
To find:
The trigonometric ratios [tex]\sin B, \tan A, \cos B[/tex].
Solution:
Using Pythagoras theorem,
[tex]Hypotenuse^2=Perpendicular^2+Base^2[/tex]
[tex]AB^2=AC^2+BC^2[/tex]
[tex](10)^2=(6)^2+BC^2[/tex]
[tex]100-36=BC^2[/tex]
[tex]64=BC^2[/tex]
Taking square root on both sides.
[tex]\sqrt{64}=BC[/tex]
[tex]8=BC[/tex]
So, measure of BC is 8 units.
Now,
[tex]\sin \theta=\dfrac{Opposite}{Hypotenuse}[/tex]
[tex]\sin B=\dfrac{AC}{AB}[/tex]
[tex]\sin B=\dfrac{6}{10}[/tex]
[tex]\sin B=\dfrac{3}{5}[/tex]
Similarly,
[tex]\tan \theta=\dfrac{Opposite}{Adjacent}[/tex]
[tex]\tan A=\dfrac{AC}{BC}[/tex]
[tex]\tan A=\dfrac{6}{8}[/tex]
[tex]\tan A=\dfrac{3}{4}[/tex]
And,
[tex]\cos \theta=\dfrac{Adjacent}{Hypotenuse}[/tex]
[tex]\cos B=\dfrac{BC}{AB}[/tex]
[tex]\cos B=\dfrac{8}{10}[/tex]
[tex]\cos B=\dfrac{4}{5}[/tex]
Therefore, the required trigonometric ration are [tex]\sin B=\dfrac{3}{5}, \tan A=\dfrac{3}{4}, \cos B=\dfrac{4}{5}[/tex].
Solve the two step equation
x - 3 =2
( please give detail )
Answer:
x=5
Step-by-step explanation:
x-3=2
x-3=2
+3 +3
x=5
Find the value of x and the measure of the angle labeled 6xº.
Answer:
30=6x(vertically opposite angle)
x=30/6=5
b.x=5,angle measure is 30
hi everyone i got a 16/20 on a final what percent is that im jw
Answer:
80%
Step-by-step explanation:
Which is more, 159 ounces or 10 pounds?
Answer:
10 pounds is more
Step-by-step explanation: