Answer:
The area of the circle is 38.5 cm²
Step-by-step explanation:
The rule of the area of a circle is A = π r², where
r is the radius of the circleThe radius of the circle is half the diameter of the circle r = [tex]\frac{1}{2}[/tex] dLet us solve the question
∵ The diameter of the circle is 7 cm
∴ d = 7 cm
∵ r = [tex]\frac{1}{2}[/tex] d
→ Substitute d by 7
∴ r = [tex]\frac{1}{2}[/tex] (7)
∴ r = 3.5 cm
→ Substitute the value of r in the rule of the area above
∵ A = π (3.5)²
∴ A = 12.25π
∵ π = [tex]\frac{22}{7}[/tex]
∴ A = 12.25 ( [tex]\frac{22}{7}[/tex] )
∴ A = 38.5 cm²
∴ The area of the circle is 38.5 cm²
Please answer for me
Find the slope and y-intercept
Answer:
y-intercept: -1
slope: -1/4
Step-by-step explanation:
Please show all work :)
A group of 523 people is going on a boat tour. If each boat holds 7 people, how many people will be on the last boat?
How can you break up the figure into familiar shapes to determine the area?
A figure can be broken into 2 rectangles. 1 rectangle has a base of 4 meters and height of 5.2 meters. The other rectangle has a base of 6 meters and height of 3 meters.
Break up the figure into a 4 m by 5.2 m rectangle and a 3 m by 6 m rectangle.
Break up the figure into a 4 m by 8.2 m rectangle and a 3 m by 6 m rectangle.
Break up the figure into a 4 m by 5.2 m rectangle and a 3 m by 2 m rectangle.
Break up the figure into a 4 m by 8.2 m rectangle and a 5.2 m by 2 m rectangle.
Answer:
D
Step-by-step explanation:
Answer:
Break up the figure into a 4 m by 8.2 m rectangle and a 5.2 m by 2 m rectangle.
Step-by-step explanation:
OAB is a sector of a circle with centre O and radius 8 cm.
Angle AOB = e°
The area of the sector is 58 cm2
Calculate the perimeter of the sector.
Give your answer correct to 3 significant figures.
Answer:
The perimeter of the sector is :30.5 cm
Step-by-step explanation:
Mathematically, we have the area of the sector as;
e/360 * pi * r^2
r is 8 cm
so we have
58 = e/360 * pi * 8^2
58/64 * 360/pi = e
e = 103.85
To get the perimeter,
we have length of the arc plus 2r
Length of the arc is;
e/360 * 2 * pi * r
add 2 r;
e/360 * 2 * pi * r + 2r
so we have
103.85/360 * 2 * pi * 8 + 2(8)
= 14.5 + 16
= 30.5 cm
Answer: the above answer is correct
Step-by-step explanation:
Jason and Isaac each threw a javelin 10 times they recorded the distances of the throws on the box plot below which statement is true
Answer:
Step-by-step explanation:
D
If ƒ(x) = 2x2 – 3x, what is the value of ƒ(5)?
Answer:
35
Step-by-step explanation:
Simplified the expression
-2p+-6p+-4p+-4p
Answer:
-16p
Step-by-step explanation:
-2p+-6p+-4p+-4p
-2p-6p-4p-4p
-8p-8p
-16p
if it's helpful ❤❤❤❤
THANK YOU
Is 180°, 2` a reflex angle?
yes it is .....,...............reflex angle
A town is debating whether to put in curbs along the streets. The ratio of town residents who support putting in curbs to those who oppose it is 2 to 5 what percent of the residents oppose putting in curbs
Answer:
71.4%
Step-by-step explanation:
The total residents is (5+2) = 7
Those that oppose are 5÷7
5÷7 = 0.714 = 71.4 %
I’m having troubles finding the correct answer so I’m asking you guys. If this isn’t correct can you also tell me the correct answer and why
Answer:
its 60 adults
Step-by-step explanation:
Answer: 60
Step-by-step explanation:
Just divide 360/6 and you would get 60
6 m from the pole from base of a telephone pole and 10 m to reach the top of the pole how tall is the telephone pole
Answer:
8m
Explanation
The set up is a right triangle
Given
The distance of pole from the base = 6m
Length of the pole = 10m
Required
Height of the telephone pole h
Using the pythagoras theorem;
hyp^2 = opp^2 + adj*2
10^2 = 6^2 + h^2
h^2 = 10^2 - 6^2
h^2 = 100 - 36
h^2 = 64
h = √64
h = 8m
Hence the height of the telephone pole is 8m
what’s the missing number in this sequence?
88511, 16351, ? ,10251
if a comet become visible every 6 years how many times will it be visible in a person's lifetime
Answer:
13
Step-by-step explanation:
Assuming the average human lifespan is 79 years then youll see a comet about 13 times in your life
Megan has 99 photos on her phone. John has p photos on his phone. If Megan has 9 times as many photos on her phone as John, write and solve an equation to find how many photos John has on his phone can someone help plssss
Answer:
John has 11 photos on his phone
Step-by-step explanation:
Equations
Megan has 99 photos on her phone and John has p photos on his phone. It's given Megan has 9 times as many photos on her phone as John has. This leads to the following equation:
99 = 9p
Dividing by 9:
p = 99/9 = 11
John has 11 photos on his phone
What is the value of the function f(x) = 2x + 3 for an input value of 3? (a)6(b) 12(c) 3 (d)9
Answer:
6
Step-by-step explanation:
PLZ SOLVE THE FOLLOWING PROBLEMS
Answer:
3. X = 31° y = 139°
4. X = 150° y = 145°
5. X = 54°
6. w = 50° X = 40° y = 85° z = 110°
Sue started the day with $260 in her bank account.She purchased 15 books that we're all the same price.After she left the store,she had -$10 in her account.How much did each book cost?
Answer:
$18
Step-by-step explanation:
Since she ended up with -$10 in her account after leaving the store, that means that she spent $270 at the store total.
Since the books were the same price, just divide.
270/15=18
This means that each book cost $18
new freinds?
im 14
football player
ohio
Answer:
2021 is crazy
Step-by-step explanation:
a gym class collected the results form their long-jump trials and ordered them in a stem and leaf plot.
circle the units of measurement that you think the class used
a)mm
b)cm
c)m
d) km
Is this sentence true or false
Changing the order of addends on problems with more than 2 addends always changes the answer
Answer: False. Addition is both associative (meaning you can lump the addends together as much as you like) and commutative (meaning you can change the order of the addends as much as you like.)
Explanation: 2 + 3 + 5 = 2 + 5 + 3 = (2 + 3) + 5
Please help, determine the domain
Answer:(-1,7)
Step-by-step explanation:
LCM of two numbers is 1320 their HCF is 12 if one of the numbers is 132 find the other
Answer:
brainliest plzzzzzzzz
120
Step-by-step explanation:
LCM=1320
(GDC) HCF=12
Another no.=132
let second no. be =A
According to question
First no.×Second no.=HCF×LCM
132×A=12×1320
132×A=15840
A=15840/132
A=120
Other no. is 120
Given that
P
=
x
y
.
Find
P
when:
x
=
−
3
and
y
=
10
27 men can paint a house in 4 days . If 9 more men are hired ,how long should all the men together take to paint the same house ?
Answer:
3
Step-by-step explanation:
1/[27*4]=1/[(27+9)*x]
27*4=36x
x=3
3/5 x 7/4 (ASAP) (fractions)
Answer:
21/20 in fraction form, 1.05 in decimal form
Step-by-step explanation:
Answer:
21/20
Step-by-step explanation:
3/5*7/4
21/20
It is correct answer
Help please, look The picture !
Answer:
Ha ha what I was doing is just looking at the picture.
OK jokes aside
The correct answer should be
option d (-0.25)
The graphs with the equation 3y + x = 1/2 and 9y - 21x = -621/10 have been drawn on the grid.
Answer:
X= 2.61
Y= -0.7
Step-by-step explanation:
The estimates of the solutions of the simultaneous equations given are x = 2.65 and y = -0.71.
Given a graph of the two equations:
3y + x = 1/2
9y - 21x = -621/10
These simultaneous equations can be solved and find the solution algebraically by substitution or elimination methods.
Here, it is required to find the solution using the graphs.
Already, the graphs of the two equations are given.
The solution of the two equations graphically can be found by the intersecting point of those graphs.
Here the two graphs intersect at :
x value in between 2.6 and 2.7.
y value close to -0.7.
So the solution can be estimated as x = 2.65 and y = -0.71.
Learn more about Simultaneous Equations here :
https://brainly.com/question/31913520
#SPJ3
The temperature varies indirectly as the distance from the city. The temperature equals 5°C when the distance from the city is 50 miles. What is the temperature when the distance is 20 miles from the city?
Answer:
2 degrees c
Step-by-step explanation: It's 5 degrees when it's 50 miles, simplify that and you get 1 degree c when it's 10 miles, so 1 times 2 is 20 and 1 times 2 is 2
