Answers
Answer:
78.54 cm
formula: A= pi x r^2
4
area of 2 semi circles = 3.14x5x5= 78.5 cm2
78.5+78.5=157cm2
formula: π x r x r = area of circle
1/4 x π x r x r = area of 1/4 of a circle
x = times
Related Questions
Pls help
Find the surface area of the composite figure.
Answers
Answer:
644 cm³
Step-by-step explanation:
Surface area of the composite figure = (surface area of the upper cuboid - base area of upper cuboid) + (surface area of the lower cuboid - base area of the upper cuboid)
✔️Surface area of upper cuboid = 2(LW + LH + WH)
L = 3
W = 3
H = 8
Surface area of upper cuboid = 2(3*3 + 3*8 + 3*8) = 2(9 + 24 + 24) = 114 cm²
✔️Surface area of Surface area of lower cuboid = 2(LW + LH + WH)
L = 12
W = 10
H = 7
Surface area of lower cuboid = 2(12*10 + 12*7 + 10*7) = 2(120 + 84 + 70) = 548 cm²
✔️Base area of upper cuboid = L*W
L = 3
W = 3
Base area = 3*3 = 9 cm²
✅Surface area of the composite figure = (114 - 9) + (548 - 9) = 105 + 539 = 644 cm³
HELP it's Geometry HW I WILL GIVE BRAIN LIST AND 5 STARS
Answers
Number two: if line segment AC is congruent to line segment CB and line segment CB bisects line segment AB, then < a is congruent to < B
Plz help me with this question ASAP
Answers
Answer:
Step-by-step explanation:
Calculate the rate per litre at which a car uses petrol,if it uses 20l of petrol to travel 180 km
Answers
Answer:
Rate per litre=180km ÷ 20l
=8km/l
Find the value of x.
please explain how you got it :)
Answers
Answer:
x=65°
Step-by-step explanation:
Next to x would be 70. (180-110=70).
Since this is an equilateral triangle, the other angle is also 70.
180-70-70=40, so the third angle is 40.
Since this is a right angle, the other angle is 50 (90-40=50).
Since that is 50, and this is an equilateral triangle, the other two angles have to be the same.
180-50=130
130÷2=65
A piece of wood is 3 1/2 feet long how many total inches long is it?
Answers
Answer:
42 inches
Step-by-step explanation:
1 foot is 12 inches
12 times 3=36
12 divided by 2=6
36+6=42
Which point is closest to the x axis. (4, 8) (2, 11) (8, 7) (3, 13)
Answers
Step by step:
Because the numbers on the left sides are numbers that represent the y-axis which is how far up or down the point will be.
7 is the smallest number making it the closest to the x- axis.
Hope this helped you:)
Answer:
Answer: 8,7
Step-by-step explanation:
sorry I'm 1 year late :((
Gravel is being dumped from a conveyor belt at a rate of 15 ft3/hr and its coarseness is such that it forms a pile in the shape of an inverted right cone whose height is three times its base radius. How fast is the height of the pile increasing when the pile has a height of 10 ft
Answers
Answer:
0.43 ft/hr
Step-by-step explanation:
dv/dt = 15ft³/hr
Height = 10ft
We are required to get dh/dt
h = 3r
r = h/3
Formula for volume = 1/3πr²h
We put value of h
1/3π(h/3)²h
= 1/3π(h²/9)h
= 1/3πh³/9
= πh³/29
dv/dt = 1/27π.3h²dh/dt
= dv/dt = πh²/9dh/dt
Remember dv/dt = 15
When we put this in we get
dh/dt = 15x9/3.142x10²
= 135/314.2
= 0.43 ft³/hr
Please check the attachment I added also to add you.
giving brainliest *easy*
Answers
Answer:
pi
Step-by-step explanation:
to convert angles to radians you must multiply the angle measurement by the formula pi/180
180 x pi/180
the 180s cancel out and you are left with pi
Answer:
3.14159 Radian
Step-by-step explanation:
3.142rad × 180/π = 180°
Use the image to the right to answer the questions:
a. What theorems would/could you use to find x?
b. Find the value of x.
Thank you so much in advance! :)
Answers
Answer:
a. Linear pair theorem
b. x = 40
Step-by-step explanation:
a. You can use linear pair theorem. That is, two angles on a straight line are supplementary. They sum up to 180°
b. Thus:
x + (4x - 20) = 180°
x + 4x - 20 = 180
5x - 20 = 180
5x = 180 + 20
5x = 200
x = 200/5
x = 40
6 1 8 4 2 7
What comes next and why
Answers
Answer:
The answer to your question is:
4, 9
Which expression correctly represents 10 times the difference of a number and six
Answers
Answer:
10(6 - x) or 10(x - 6)
Step-by-step explanation:
Let the number be x.
Answer: 10(6 - x) or 10(x - 6)
A salesperson earns a 5% commission for each sale they make. How much will the salesperson make from a sale of $700?
Answers
Which set of sides would make a right triangle?
Answers
Answer:
c
Step-by-step explanation:
Help please thank uuuu
Answers
Answer:
B. x = 7; AB = 9, AC = 12
Step-by-step explanation:
12/4 = (x + 2)/(x - 4) (similar triangles theorem)
3 = (x + 2)/(x - 4)
Cross multiply
3(x - 4) = (x + 2)
3x - 12 = x + 2
Collect like terms
3x - x = 12 + 2
2x = 14
x = 14/2
x = 7
✔️AB = x + 2 = 7 + 2
AB = 9
✔️AC = (x + 2) + (x - 4) = (7 + 2) + (7 - 4)
AC = 9 + 3
AC = 12
No rush but what is the formula for finding the area of a polygon
Answers
Answer: To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem.
Step-by-step explanation:
PLEASE HELP ASAP
TRIGONOMETRY
Answers
Answer:
11). x = 25.8°
12). x = 67.3°
Step-by-step explanation:
11). By using sine rule in the given triangle,
cos(x) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
cos(x) = [tex]\frac{27}{30}[/tex]
x = [tex]\text{cos}^{-1}(\frac{9}{10} )[/tex]
x = 25.84
x ≈ 25.8°
12). By applying tangent rule in the given triangle,
tan(x) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(x) = [tex]\frac{43}{18}[/tex]
x = [tex]\text{tan}^{-1}(\frac{43}{18} )[/tex]
x = 67.29°
x ≈ 67.3°
HHHEEELLLPPPPP MMMMMMEEEEEE!!!!!!
Which is the graph of the function g(x)=−x^2−4x−1?
Answers
Answer:
its a, the first one
Step-by-step explanation:
i graphed it have a good day (:
Find the errors and correct the following mathematical sentences.
Answers
Answer:
This is your answer
Please help ASAP please and thank you have a great and blessed day!
Answers
Write the ratios of each for the given triangle below
SinA=
CosA=
TanA=
SinB=
CosB=
TanB=
Answers
Answer:
i have made it in above picture
Lesson 1 Homework Practice Solving Equations with Rational Coefficients answers
Answers
A culture of bacteria has an initial population of 790 bacteria and doubles every 4
hours. Using the formula P+ = Po.2, where P is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 11 hours, to the nearest whole number?
Answers
Answer:5314.4563≈5314
Step-by-step explanation:
Find only perimeter of shape length 574.0 cm and width 487.7cm
Answers
Answer:
What is the shape pf the figure?
Find the identical expression for the following plz show work
Answers
What is the area of this figure?
Enter your answer in the box.
___in^2
Answers
Answer:
400
Step-by-step explanation:
8*20/2+16*20=400.
What is the different in the measures of angle WVX and angle WXV?
Answers
Answer:
wvx=57
wxv=180-149
=31
57-31
26
1. A triangle with the sides: 6 mm, 7 mm, and 5 mm.
a
unique triangle
b
more than one triangle
c
no triangle possible
2. A triangle with the angles: 24°, 29°, and 127°.
a
unique triangle
b
more than one triangle
c
no triangle possible
3. A triangle with the sides: 7 in, 3 in, and 10 in.
a
unique triangle
b
more than one triangle
c
no triangle possible
Answers
9514 1404 393
Answer:
(a) unique triangle(b) more than one triangle(c) no triangle possibleStep-by-step explanation:
1. Three sides lengths uniquely specify a triangle.
__
2. Three angle measures specify the shape of a triangle, but not its size. More than one triangle is possible with any given set of angle measures.
__
3. If the lengths do not satisfy 3 + 7 > 10, which they do not, then no triangle can be formed.
Ignore the answer I chose it didn't let me click off of it
Answers
Answer:
d i think
Step-by-step explanation:
What is 50π estimated? What is it exact?
Answers
Answer:
157.079632679