Answer:
880 cm²
Step-by-step explanation:
Given that :
Curved surface area of a cone : πrl
r = base Radius = 14 cm
l = slant height = 20 cm
Hence,
Curved surface area = π * 14 * 20
Curvwd surface are = π * 14 * 20
Curved surface area = 879.64594 cm²
Curved surface area = 880 cm²
Suppose a city with population 600,000 has been growing at a rate of 4% per year. If this rate continues, find the population of this city in 25 years.
Answer:
15,600,000
Step-by-step explanation:
We start with our initial population of 600,000. Then multiply that with the rate of 4% (0.04 in decimal, or 1.04 so that the 0.04 is automatically added to the 600,000.)
600,000 · 1.04y = projected populationy = 25600,000 · 1.04(25) = projected populationsimplify!15,600,000 = proejcted populationSuzanne, Latisha, and Morgan measure their heights. Suzanna is 0.8 times the height of Latisha, and Morgan is 1.09 times the height of Latisha. Who is the tallest? Who is the shortest?
Answer:
Tallest = Morgan
Shortest = Suzanna
Step-by-step explanation:
Assuming Latisha = 1
0.8 is less than 1, meaning it's 80% the height of Latisha, so this means Suzanna is shorter than Latisha.
1.09 is more than 1, Morgan is taller than Latisha.
Morgan is tallest and Suzanna is shortest, Latisha in the middle.
Kathryn and karina are neighbours and they are each planning rosebushes and butterfly plants in their yard. They bought their plants from the same store. Catherine spent $111 on four rosebushes and seven butterfly plants. Karina spent $132 on five rosebushes and eat butterfly plants. What is the cost of one rosebush and the cost of one butterfly plant?
A rosebush : $10, butterfly plant $7
B Rose bush: $9 ,butterfly plant $12
C rosebush; 12 , butterfly plant $9
D rose bush : $14, butterfly plant $7
Answer:
d a rosebush 14 butterfly plant 7
Step-by-step explanation:
don't believe me ask some body else okkkkkur
HELP WILL GIVE BRAINLIEST Given an expression can you write an equivalent form of the expression and explain the properties you used?
Answer:4^-3 could also be written as 1/4^3
Step-by-step explanation:
Negative exponent rule in which the number with a negative exponent gets moved to the denominator.
what is the gradient of the following shape
How do you solve this and please use explanation if you can.
Answer:
i honestly dont know
Step-by-step explanation:
i need pointsss
Matthew made a fruit salad in which the ratio of blueberries to red grapes is 8:6 if Matthew use 28 blueberries how many red grapes did he use
Answer:
21 red grapes
Step-by-step explanation:
B:G
8:6
28:x
28/8=3.5
therefore 6*3.5 = x
Answer:
The answer is 21
Step-by-step explanation:
If you do 28/8 you get 3.5. So he used 3 1/2 blueberries. Then you have to times 6 by 3.5 to get 21. Put it back into ratio form and you get 28:21
Hope this helps!
What is the inverse function (equation) of f(x) = 6x - 5 ?
Step-by-step explanation:
Given
f(x) = 6x - 5
f^-1(x) = ?
Let
y = f(x)
y = 6x - 5
Interchanging the roles of x and y we get
x = 6y - 5
6y = x + 5
y = ( x + 5 ) / 6
So therefore f^- 1(x) = (x + 5) / 6
Hope it helps :)❤
if triangle def is similar to triangle jkl find kl
Answer:
KL=45
Step-by-step explanation:
Choices are 152
124
60
65
45
90
Help with this it’s due today
I need help with this question
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the indices,
[tex] \frac{ {2}^{6} }{ {2}^{4} } \times {2}^{5} [/tex]
===>
[tex] {2}^{6 - 4} \times {2}^{5} [/tex]
===>
[tex] {2}^{2} \times {2}^{5} [/tex]
===>
[tex] {2}^{5 + 2} [/tex]
===>
[tex] {2}^{7} [/tex]
hence the answer is
[tex] {2}^{7} [/tex]
Answer:
2^7
Step-by-step explanation:
2^6/2^4)*2^5=128
2^7=128
area is the amount of .......a figure covers ?
Answer:
surface
Step-by-step explanation:
Answer: Area for a 2D image is the space it covers.
Step-by-step explanation:
If you have an empty square and you shade it in, what you are shading is its area. You can find area of a square or rectangle by multiplying its length by its width. For more complicated shapes there are formulas you can use.
The temperature was 80°F and then fell 20°F.
Please help me please help me thank you
Answer:
[tex]2\sqrt{30}[/tex]
Step-by-step explanation:
I dont feel like explaining
find x: 9(2x+1)=81(3x+2)
Answer:
Exact form: x = -17\25
Decimal form: x = -0.68
The toll on a highway is based on the number of miles driven. If the toll on a 15-mile stretch of highway is $0.60, find the cost to drive a 80-mile stretch?
Answer:
20 it would cost 20 dollars to drive an 80-mile stretch
I don’t understand pls help!!
Answer:
7.9 m
Step-by-step explanation:
Use the Pythagorean theorem: a²+b²=c²
This formula can be used to solve a side of any right (90°) triangle.
c² is the length of the hypotenuse (the diagonal side of the triangle, opposite to the 90° angle)
So, c = 32m.
Sides a and b are the legs of the triangle, but we only know one side. Plug numbers into the formula:
31² + b² = 32²
961 + b² = 1024 Subtract 961 from both sides to get b² by itself.
b² = 63
√b² = √63 Square root both sides to get b by itself.
b = 7.93725
Answer is 7.9 meters, rounded to tenths place
Guy plz Quickly
Ashley wants to know how much wrapping paper is needed to cover a box with the dimensions shown.
What is the surface area of the box?
A.
140 square inches
B.
190 square inches
C.
95 square inches
D.
175 square inches
Answer:
A. 190 inches
Step-by-step explanation:
Plug in the numbers to the surface area formula to get 190, i messed up last time
£3.23 + £1.47 =
What is the answer i've tried so many different ones an they never seem to be wright?
Answer:
£4.7
Step-by-step explanation:
Answer:
£4.7
Step-by-step explanation:
)
Write the following number in scientific notation: 26,801.
A.
2.6801 x 104
B.
2.6801 103
C.
26.801 x 103
D.
2680.1 ~ 104
Please answer
Answer:
The answer is 2.6801 x 10^4
What is the area of this parallelogram?
A. 28 m²
B. 56 m²
C. 84 m²
D. 120 m²
PLS HELP I'LL GIVE BRAINLYIST
Answer:
84m^2 or C
Step-by-step explanation:
area = base * height
= 12 * 7 = 84
Answer:
8 + 4 = 12 x 7 = 84m
Isabella is travelling in Brazil during the summer, She knows that a 15-minute phone call home to her family costs $45.85 and a 20-minute phone call costs $58.30 sabella only has $55.81 to spend on her phone call. How long can she talk to her family?
Two angles are congruent if
Answer:
they are exactly the same
Step-by-step explanation: congruent means that they are equal, so if the angles are the same they are congruent
What is the measure?
Answer:
70-45
Step-by-step explanation:
becauae w= 70-45 and w+45=70
4. What expression represents the width of the room?
Answer:
35-4
Step-by-step explanation:
Answer:
Let x = represents the width
m.
Step-by-step explanation:
hope that helps -w-
Daniel has dinner at a restaurant and the cost of his meal is $28.00. Because of the service, he wants to leave a 20% tip. What is his total bill including tip?
Answer: answer is $33.60
Step-by-step explanation:
Sharon made $45 in interest by placing $500 in a savings account with simple interest for 1 year. What was the interest rate?
Answer: The interest rate was 9%.
Step-by-step explanation:
If principal amount P is invested at the rate of r percent with simple interest(I) for t years, the formula to find rate :
[tex]R=\dfrac{I\times100}{P\times t}[/tex]
As per given,
P = $ 500, I = $45, t = 1 year
Substitute values in formula , we get
[tex]R=\dfrac{45\times100}{500\times1}\\\\\Rightarrow R=9\%[/tex]
Hence, The interest rate was 9%.
There are 320 students in a school.
There are 36 more boys than girls.
What fraction of the students in the school are boys?
A car travels a distance of 190 miles in a time of 3.4 hours.
What is its average speed rounded to 1dp?
Answer:
55.9 mph
Step-by-step explanation:
190/3.4 = 55.88 mph rounded to one dp = 55.9 mph
A car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then its average speed will be [tex]56[/tex] miles per hour.
What is average speed ?Average speed is speed is the total distance traveled by the car in a particular time of interval.
Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]
We have,
Distance [tex]=190[/tex] miles
Time[tex]= 3.4[/tex] hours
So, Using the above given formula,
Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]
[tex]=\frac{190}{3.4}[/tex]
[tex]=56[/tex] miles per hour
So, the average speed of car is [tex]56[/tex] miles per hour which is find out using the above given formula.
Hence, we can say that if a car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then its average speed will be [tex]56[/tex] miles per hour.
To know more about average speed click here
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