Answer:
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Tiana would like to buy cone-shaped hats for her birthday party. She wants hats with the largest volume, since they look bigger. Which of the following brands of hat should she buy?
Brand A:
height of cone = 15 in.
radius of cone base=6 in.
Brand B:
height of cone = 18 in.
radius of cone base=5 in.
A. Brand A
B. Brand B
C. Either - the hats have equal volumes
Brand A hat is more preferable with largest volume i.e. 565.2 cu. inches.
What is Cone?A cone is a distinctive three-dimensional geometric figure that has a flat surface and a curved surface, pointed towards the top.
Here, Given data are:
Height of cone for Brand A = 15 in.
Radius of cone of Brand A =6 in.
Volume of Cone of brand A = [tex]\frac{1}{3}\pi r^2h[/tex]
V =[tex]\frac{1}{3}X 3.14X6^2X15[/tex]
V = 565.2 cu. in.
Height of cone for Brand B = 18 in.
Radius of cone of Brand B =5 in.
Volume of Cone of brand A = [tex]\frac{1}{3}\pi r^2h[/tex]
V =[tex]\frac{1}{3}X 3.14X5^2X18[/tex]
V = 471 cu. in.
Volume of brand A > volume of brand B.
Thus, Brand A hat is more preferable with largest volume i.e. 565.2 cu. inches.
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What's the least common multiple for 6x^2-54 and 9x^2-54x+81
Answer:
im sorry i really need some point for this exam
Step-by-step explanation:
Which expression is equivalent to 5 (w + 4) when w = 9?
5 (9)
9 (5)
5 (9) + 4
5 (9) + 20
Answer:
I think it's 5(9)+20
Step-by-step explanation:
5(9+4) can be expanded to get 5(9)+5(4). And 5(4)=20
Answer:
The answer is D
Step-by-step explanation:
Are These shapes similar or congruent
Answer:
is it congruent !!!!!!!
I need help finding the area of a figure, it has 15ft of heigh on the left side, 20ft wide, and it's 20ft tall on the right side.
Answer: 6000ft2
Step-by-step explanation: Multiply 15*20*20 to find the area of a figure.
Can anyone help me with this question please ?
I rectangular prism with a square base has a high of 7 inches the base of the prism can be completely covered with no overlap by 16 squares that each have a edge length of 1 inch what is the total surface area of the rectangular prism
Answer:
144 square inches
Step-by-step explanation:
Total surface area of the rectangular prism = Sum of all the area of its sides
Since it has a square base which can be covered by 16 squares of length 1 inch each, then;
length of its base = 4 inches
So that,
i. Area of its base = [tex]length^{2}[/tex]
= [tex]4^{2}[/tex]
area of its base = 16 square inches
ii. Area of one of the surfaces of its sides = length x width (or base x height)
= 4 x 7
= 28 square inches
Sum of the area of its vertical sides = 4 x 28
= 112 square inches
Thus,
Total surface area of the prism = 16 + 16 + 112
= 144 square inches
find 80% of quantity if 40% the quantity is 420.
Answer:
840
Step-by-step explanation:
If 40% of the total quantity is 420, then to find 80%, just double the number.
420*2=840
1 1/2 years is how many months
Answer:
18 months
Step-by-step explanation:
12 + 6 months
Question 9 (1 point)
(07.03 MC)
What is the solution to the following equation? (1 point)
8(2x - 10) + 18 = 4x + 22
O 1) 4
0 25
3) 7
4) 8
Answer:
7
Step-by-step explanation:
16x-80+18=4x+22
16x-62=4x+22
12x-62=22
12x=84
x=7
Convert 7x - y = -9 to slope-intercept form.
Answer:
7=(-9+y)÷x
Step-by-step explanation:
Shane is mountain climbing with Naomi and had just climbed a 7.8 meter vertical rock face. Naomi is standing 6.2 meters away from the bottom of the cliff, looking up at Shane. How far away are Shane and Naomi? If necessary, round to the nearest tenth
Answer:
1.6 meters
Step-by-step explanation:
The distance between Shane and the bottom of the cliff is 7.8 meter while Naomi is standing 6.2 meters away from the bottom of the cliff.
As such, the distance between Shane and Naomi would be the difference between Shane's distance from the bottom of the cliff and Naomi's distance from the bottom of the cliff
= 7.8 - 6.2
= 1.6 meters
This is already in the nearest tenth
Order the sides or angles of each triangle from least to greatest.
Answer:
Step-by-step explanation:
VW<WX<VX
25°<65°<90°
Can someone help me with this ASAP please I’m being timed !
Answer:
I hope you get the answer im tryna find mines
Step-by-step explanation:
Help, and please show your work.
Answer:
for #9:
tan 30=x/10
tan 30*10=x
x=5.77=5.8
for #10:
tan 40=4/x
x*tan 40=4
x=4/tan 40
x=4.76=4.8
Step-by-step explanation:
hope all that helped lol
Please help math!!!!!!! its not 1/2 btw
Answer:
-1 /2
Step-by-step explanation:
A figure is shown
121
What is the value of x?
Keypad
1
2
3
4
5
6
7
8
9
0
ANSWER FAST ROR BRAINLIEST
I NEED HELP !!!!!
Isabella opened a savings account and deposited $25,000.00. The account earns 20% interest, compounded annually. If she wants to use the money to buy a new car in 2 years, how much will she be able to spend on the car?
Answer:
$11,000
Step-by-step explanation:
1st year the account earned 20% from $25,000 = $5,000 | total = $30,000
2nd year the account earned 20% from $30,000 = $6,000
by adding the earnings of 2 years, she will be able to spend $5,000 + $6,000 = $11,000
...................................................
Answer:
chicken nuggies
Step-by-step explanation:
Mr. Lucas baked 24 cookies. 3 fourths of the cookies were oatmeal. How many oatmeal cookies did Mr. Lucas bake?
Answer: 18 oatmeal cookies.
Step-by-step explanation:
Simplify divide 24 by 3/4 to find how many oatmeal cookies Lucas made.
24 x 3 = 72/4 = 18
Solve for the nearest tenth
Answer:
426.9
Step-by-step explanation:
What is the slope of the line that passes through the points (-10, 9) and (9, 9)
Step-by-step explanation:
the answer is on foto
y = 9
3. Samantha is training to run a marathon. The first week she runs 4 km each day. The next week, she runs 7 km each day. During each successive week (each week following), each day she runs 3 km farther than she ran the days of the previous week. If she runs for five days each week, what total distance will Sara run in a 12-week training session?
The total distance will Sara run in a 12-week training session is 1230 .
What is sum of terms in AP?An arithmetic progression is a sequence of numbers or variables in which the difference between consecutive terms is the same. There can be an infinite number of terms in an AP.
The formula for finding the sum of first n terms of an AP given in the form of "a, a + d, a+2d, a+3d, ....., a+(n-1)d" is:
[tex]S _{n}[/tex]= [tex]\frac{n}{2}[/tex] [tex][2a + (n-1)d][/tex]
According to the question
Samantha is training to run a marathon.
She runs for five days each week
The first week she runs 4 km each day. = 5 × 4 = 20
The second week, she runs 7 km each day. = 5 × 7 = 35
During each successive week , each day she runs 3 km farther than she ran the days of the previous week.
The third week, she runs 10 km each day. = 5 ×10 = 50
So on
Sara run in a 12-week training session
As this sequence is in AP
First term (a) = 20
common difference (d) = 35 - 20
= 15
Now,
Sum of 12 terms in AP
[tex]S _{n}[/tex]= [tex]\frac{n}{2}[/tex] × [2a + (n-1)d]
Substituting the values, a = 20, d = 15 and n = 12 in the above formula
[tex]S _{12}[/tex] = [tex]\frac{12}{2}[/tex] × [tex][2(20) + (12-1)15][/tex]
[tex]S _{12}[/tex] = [tex]6 [40 + (11)15}[/tex]
[tex]S _{12}[/tex] = [tex]6 [205][/tex]
[tex]S _{12}[/tex] = [tex]1,230[/tex]
Hence, the total distance will Sara run in a 12-week training session is 1230 .
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What role does substitution play when determining whether or not a given value is a solution to an equation or an inequality?
Answer:
Help verify values
Step-by-step explanation:
I basically help prove that the value fits and verifies that equation or inequality. By substituting a value for the variable within the equation or inequality and then solving it as a regular expression it should correctly output the same value on the other side of the equation or make the inequality true. For example, using the following inequality...
3x + 2 > 4
We can substitute the variable x for 2 and solve the inequality, if the inequality is true then we know that the value 2 is a correct and verified value.
(3*2) + 2 > 4
6 + 2 > 4
8 > 4 ... True
The price of 600 grams of candy and 1.5 kg of cookies is $4.62. What is the price of one kg of cookies if it is $1.4 cheaper than 1 kg of candy?
Answer: $1.80
Step-by-step explanation:
600 grams - .6 kg
.6x+1.5y=4.62
y=x-1.4
.6x+1.5(x-1.4)=4.62
.6x+1.5x-2.1=4.62
2.1x=6.72
x=3.2 ( 1 KG of candy)
y=3.2-1.4
1.8=y (1 KG of cookies)
What are ALL the 100 digits of pi?
Answer:
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679
3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679
Hope this helps; have a great day!
There was no actually pyramid for these questions it tells you the measurements in the problem though. please help me
PLZ HELP I WILL GIVE BRAINLIEST
Answer:
a. the sign is interchange
it should be = x^2 - 3x + 4 - x^3 - 7x + 2
Answer:
see explanation
Step-by-step explanation:
(a)
The student has distributed the second parenthesis by 1 instead of - 1
(b)
Given
(x² - 3x + 4) - (x³ + 7x - 2)
distribute the first parenthesis by 1 and the second by - 1, that is
= x² - 3x + 4 - x³ - 7x + 2 ← collect like terms
= - x³ + x² - 10x + 6
Please help me with 1,2,3,show me how you get the answers and show me the steps for 1,2,3,please do not send me link write it right here please
Answer:
Step-by-step explanation:
1. ok so you need to use Pythagoras which is a^2 + b^2 = c^2
substituting 16 and 12 into 'a' and 'b' you get 16^2 + 12^2 = c^2
256 + 144 = c^2
400 = c^2 (square root each side to get ride of the square)
c = 20cm
2. doing the same thing you get c = 22.36 in
3. again doing it you get c = 15Ft
Hope this helps!
On Saturdays, Jasmyn works three hours more than Eve. Which expression represents how many hours Jasmyn works on Saturdays?
HELP MEEE!