Answer:
2r = d
Step-by-step explanation:
Diameter is two times of radius.
Diameter = 2 x radius
2 r = d
Can please someone help me??!!!!! Find the area of each triangle (A-D). Show your reasoning please.
A cylinder has a diameter of 40 feet and a height of 32 feet. What is the surface area of the cylinder? Express the answer in terms of Pi. Recall the formula S A = 2 pi r squared + 2 pi r h. 1,320 pi feet squared 1,792 pi feet squared 2,080 pi feet squared 2,640 pi feet squared
Answer:
2080
Step-by-step explanation:
The surface area of the cylinder is 2080π square feet. Answer: 2,080 pi feet squared.
What is a cylinder?A cylinder is a 3D solid form made up of two bases that are parallel and identical and are connected by a curving surface. These bases resemble spherical disks. The axis of the cylinder form is a line drawn through the center or connecting the centers of two circular bases.
The formula for the surface area of a cylinder is:
SA = 2πr² + 2πrh
where r is the radius of the base of the cylinder, h is the height of the cylinder, and π is the mathematical constant pi (approximately equal to 3.14159).
Since the diameter is given as 40 feet, the radius is half of that, or 20 feet.
So, substituting the values into the formula, we get:
SA = 2π(20)² + 2π(20)(32)
SA = 2π(400) + 2π(640)
SA = 800π + 1280π
SA = 2080π
Therefore, SA = 2080π.
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Vaughn is ordering light bulbs for his business. He always orders three extra bulbs. The following shows how the number of light bulbs he orders, y, changes as the number of light bulbs burnt out, x, changes.
Which equation shows this relationship?
A.
y = 3x
B.
y = x + 3
C.
3y = x
D.
y + 3 = x
Answer: D
Step-by-step explanation:
Because if y is the number of light bulbs he orders and he always orders three extra or three more that means that for any number of orders that he makes there will be three more. That three will never change since he always others three more than he ordered.
Answer:
y = x + 3
Step-by-step explanation:
If y is 1.5 when x is 3, and y varies directly with x, find y when x is 9.
0.5 4.5 9.5 18
Answer:
4.5
Step-by-step explanation:
9 is 3 times more than 3
4.5 is three times more than 1.5
:)
brainliest? ily
Last Saturday, the average temperature was 8% higher than the average temperature, 2 Sundays ago, the average temperature 2 Sundays ago with T degrees Celsius, which of the following expressions could represent the average temperature last Sunday.
choose 2 answers.
A) 1.8T
B) T+8
C) T+0.08
D) 1.08T
E) (1 + 8/100) T
Answer: 1.08T and (1+8/100)T
Step-by-step explanation:
Given: The average temperature two Sundays ago was T degrees Celsius.
Since, last Sunday, the average temperature was 8% higher than the average temperature two Sundays ago.
⇒ The average temperature last Sunday
Since 8%=0.08
Therefore, The average temperature last Sunday
⇒ The average temperature last Sunday
⇒ The average temperature last Sunday
⇒ The average temperature last Sunday
Thus, the right option is 1.08T and (1+8/100)T
Choose the number sentence that illustrates the distributive property of multiplication over addition.
A. 2 × (7 + 8) = (2 + 7) × (2 + 8)
B. 2 × (7 + 8) = (2 × 7) + (2 × 8)
C. 2 × (7 + 8) = (2 × 7) + 8
Answer:
A
Step-by-step explanation:
It is the only equation with addition in all the parenthesis.
A bus company recorded the ages, in years, of the people on coach A and the people
on coach B.
Here are the ages of the 23 people on coach A.
41 42 44 48 52 53 53 53 56 57 57 59
60 61 63 64 64 66 67 69 74 77 79
(a) Complete the table below to show information about the ages of the people on coach A.
Answer:
Median : 59
Lower quartile : 53
Upper quartile : 66
Least age: 41
Greatest age: 79
Step-by-step explanation:
In a ordered list, the median is the number at the half position. With 23 numbers, the half position the 12th number (there are 11 number above and blow it)
41 42 44 48 52 53 53 53 56 57 57 59 60 61 63 64 64 66 67 69 74 77 79
The lower quartile is the number at the half position, only considering the first data points until the median.
41 42 44 48 52 53 53 53 56 57 57
The upper quartile is the number at the half position, only considering the data points after the median.
60 61 63 64 64 66 67 69 74 77 79
The least and greatest ages are easily found.
Step-by-step explanation:
median = 58
lower quartile = 53
upper quartile = 66
leastest age = 40
greatest age = 82
Hi I really need help on this question I will give you 30 points if you help me ty stay safe
Answer:
erm
Step-by-step explanation:
4, 5 27
Please answer the question it’s for my math SAT
Answer: D.
This is tricky.
Think of the equation as an equation for a line
where in this case.
[tex]C=5/9(f-32)[/tex]
or
[tex]C=5/9f-5/9(32)[/tex]
You can see the slope of the graph is [tex]5/9[/tex] which means that for an increase of 1 degree Fahrenheit, the increase is [tex]5/9[/tex].
[tex]c=5/9(f)[/tex]
[tex]c=5/9(1)=5/9[/tex]
Therefore, statement I is true. This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of [tex]9/5[/tex] Degrees Fahrenheit
[tex]c=5/9(f)[/tex]
[tex]1=5/9(f)[/tex]
[tex]f=9/5[/tex]
Since [tex]9/5=1.8[/tex] Statement 2, is true.
The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III (an increase of [tex]5/9[/tex] degree Fahrenheit is equal to a temperature increase of 1 degree Celsius) is true:
[tex]c=5/9(f)[/tex]
[tex]c=5/9(5/9)[/tex]
[tex]c=25/81[/tex] which is ≠ 1)
An increase of [tex]5/9[/tex] degree Fahrenheit leads to an increase of [tex]25/81[/tex]
not 1 degree, Celsius, and so Statement III is not true.
The final answer is D.
I hope this helped x
Answer:
D!!!!
Step-by-step explanation:
Which ratio would help find the
height of the kite?
200 feet
50°
tan 50
sin 50
COS 50
cot 50
Answer:
Cos 50
Step-by-step explanation:
Which expression below is true, based on this picture?
Answer:
I think it's the 2nd one.
I didn't learn this topic yet.
The height of a cone is twice the radius of its base.
What expression represents the volume of the
cubic units?
2x
х
0 22x3
0 4773
Answer:
Volume = ⅔πr³
Step-by-step explanation:
Given
Shape: Cone
Height = 2 * Radius
Required
An expression for the volume of the cone.
Let h and r represent the height and the radius of the cone, respectively.
So, h = 2r.
So solve this question, we simply write out the formula to calculate the volume of a cone.
Volume = ⅓πr²h
Substitute 2r for h.
Volume = ⅓πr²(2r)
Volume = ⅓πr² * 2r
Volume = ⅔πr³
Hence, the above expression represent the volume of a cone when h = 2r
The expression that represents the volume of the cone in cubic units is: ⅔πr³.
What is the Volume of a Cone?Volume of cone = ⅓πr²h
r is the radius; h is the height of the cone.
Given:
Radius of the cone = rHeight = 2(r) = 2rTherefore, substitute the values into the formula for the volume of a cone:
Volume of cone = ⅓π(r²)(2r)
Volume of cone = ⅔πr³
Therefore, the expression that represents the volume of the cone in cubic units is: ⅔πr³.
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Solve for X 2( 5.5x+1) =24
Answer:
X=2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2(5.5x+1)=24
(2)(5.5x)+(2)(1)=24(Distribute)
11x+2=24
Step 2: Subtract 2 from both sides.
11x+2-2=24-2
11x=22
Step 3: Divide both sides by 11.
11x/11=
22/11
X=2
Hope this helps
answer pls 40 points hurry up
Answer:
2
Step-by-step explanation:
What is the estimated sum when 3,467 and
8.908 are rounded to the nearest thousand and
added
Answer:
about 12,000
Step-by-step explanation:
3,467 is rounded to 3,000
8,908 is rounded to 9,000
The following situations showed a strong correlation. Which implies causation?
A. an increase in the average speed a car travels and a decrease in the time it takes to reach the destination
B. an increase in a company's advertising budget and an increase in their profit
C. an increase in temperature and an increase in ice cream sales
D. an increase in salary and a decrease in sick days
Answer:
A. an increase in the average speed a car travels and a decrease in the time it takes to reach the destination
Step-by-step explanation:
As an increase in the speed of the car decrease the time it takes to reach the destination.
What is correlation?Correlation is the dependence of any statistical relationship between the causal or may be two random variables. It usually indicates the type of association.
As the increase in the car speed will lead to a decrease in the distance and the time it takes to reach the destination. Hence positively correlated.
Find out more information about the causation.
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Refer to the Parallelogram below to complete the following problem if m angle B= 3x- 9 and m angle C= 39°, then what is the value of x?
Answer:
44
Step-by-step explanation:
Answer:
The answer is 44
Step-by-step explanation:
Hope this HELPED you
Find the exact value of sec30°.
Decimal Form:
1.15470053
…
Step-by-step explanation:
The exact value of sec(30°) is 2√3 / 3.
We have,
To find the exact value of sec(30°), use the trigonometric identity:
sec(θ) = 1 / cos(θ)
Now,
cos(30°) = √3 / 2
Now, substitute this value into the formula for sec(θ):
sec(30°) = 1 / cos(30°) = 1 / (√3 / 2)
sec(30°) = 2 / √3
To rationalize the denominator, multiply the numerator and denominator by √3:
sec(30°) = 2 / √3 * √3 / √3
= 2√3 / 3
Therefore,
The exact value of sec(30°) is 2√3 / 3.
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Which sentence about a geometric plane is
false?
A plane is an undefined term.
A plane is a one-dimensional figure.
A plane contains at least three points that
do not lie on the same line.
The intersection of two planes is a line.
Answer:
A plane is a one dimensional figure
Can I Please Get Help
Answer:
C
Step-by-step explanation:
Answer:
D because 45*2
Step-by-step explanation:
How do I solve 8 (a+c)*6-(4a-8c)÷12 please explain I'm having trouble with this.
And the answer isn't
48(a+c)−3a−2c
Answer:
8(a+c)(6)−(
4a−8c
12
)
=
143
3
a+
146
3
c
Step-by-step explanation:
Answer:
copy it then paste it
Step-by-step explanation:
Does anyone know the correct answers??
Answer:
i believe the answers are:
false
true
true
Step-by-step explanation:
it's been a while, so im not exactly sure? but im pretty sure this is right.
Answer:
Same Im pretty sure it is:
False
True
True
Step-by-step explanation:
Tell whether the graph of the quadratic function
y − 4x2 = 4x + 5 opens upward or downward and whether the function has a maximum or a minimum.
The graph opens (select: downward, upward) and and the function has a
(select: maximum, minimum).
Answer: Graph attached.
Step-by-step explanation:
It is easier to figure it out if you can see it.
Also easier if you rewrite the equation in quadratic form:
y = 4x² + 4x + 5
What is the mean of this
15, 16, 15, 13, 19, 20, 21
what is the answer?
A: 15
B: 16
C: 17
D: 18
Answer; C, 17
Step-by-step explanation: add all the numbers and divide by 7
in how many ways can the classes math, language arts, science and social studies be ordered on student schedules as the first four classes of their day
Answer:
16
Step-by-step explanation:
theres 4 different subjects that could be in each of 4 different slots, eg, science, ss, ela, or math could be in slot one, or the same for slot two, and so on and so forth.4 x 4 = 16
The required number of ways to study 4 different subject to first four classes is 16
What is method of counting?If we have m number of works to do and n number of peoples then the number of ways to do the work is mxn
How to find number of ways?Here we have given
Number of subjects = 4 that is math, science, art and social science
Number of classes = 4
Therefore the number of way to attending the class is
4x4 = 16
This is the conclusion to the answer.
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Question 3 of 10
2 Points
What is the volume of the sphere below?
5
A.
100
3
7 units 3
O
B.
ni units 3
3
C.
125
3
units 3
D.
500
3
7 units 3
Answer:
D
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V = [tex]\frac{4}{3}[/tex]πr³ ( r is the radius ), thus
V = [tex]\frac{4}{3}[/tex]π × 5³
= [tex]\frac{4}{3}[/tex]π × 125 = [tex]\frac{4(125)}{3}[/tex]π = [tex]\frac{500}{3}[/tex]π units³ → D
The volume of the sphere of the given figure is [tex]\frac{500}{3} \pi units^{3}[/tex] .Option D is correct.
It is given that the radius(r) of the sphere is 5 unit.
It is required to find the volume of the sphere of the given figure.
What is the volume of the sphere below?As we know the volume of the sphere is:
V = [tex]\frac{4}{3} \pi r^{3}[/tex]
Where, r represents the radius of the sphere.
Now putting the value of 'r' in the formula,
V = [tex]\frac{4}{3}\pi (5)^{3}[/tex]
V = [tex]\frac{4}{3} \pi[/tex]×(125)
V = [tex]\frac{4 (125)}{3}\pi[/tex]
V = [tex]\frac{500}{3} \pi[/tex] [tex]unit^{3}[/tex]
Thus, the volume of the sphere of the given figure is [tex]\frac{500}{3} \pi units^{3}[/tex] .
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Please help as soon as you see this......
Simplify the expression..
[tex]4x^{3}[/tex]×[tex]3x^{-5}[/tex]
Answer:
Step-by-step explanation:
(4)(3) = 12
x^3(x^[-5]) = x^(3 - 5) = x^(-2)
12
Combining these in multiplication we get the final answer ------------
x^2
If both pairs of opposite angles of a quadrilateral are supplemental then the quadrilateral is a parallelogram
•True or •False
Answer:
THEOREM: If a quadrilateral has consecutive angles which are supplementary, then it is a parallelogram. BRAINLIEST LOL :)
Step-by-step explanation:
Answer:
TRUE
Step-by-step explanation:
ITS RIGHT MARK ME BRAINLIEST :) :) :) :) ;) ;)
A theorem in geometry states that the measure of an inscribed angle is half the measure of it's intercepted arc. In the figure, angle C intercepts arc AB and Line AB is the diameter of the circle. Which equation is a step in showing that m angle C = 90 degrees?
Answer:
c
Step-by-step explanation:
Answer:Awnser choice c
Step-by-step explanation:
A sector with an area of 140 pie cm^2 has a radius of 20 cm.
r = 20 cm
A = 140 pie cm^2
What is the central angle measure of the sector in degrees?
Answer:
Central angle = 126°
Step-by-step explanation:
Area of the sector = 140π cm²
Radius of the given circle = 20 cm
Since area of the sector = [tex]\frac{\theta}{360}\times (\pi r^{2})[/tex]
[where θ is the central angle formed by the sector at the center]
140π = [tex]\frac{\theta}{360}(\pi)(20)^{2}[/tex]
θ = [tex]\frac{(140\pi)\times 360}{400\pi }[/tex]
θ = 126°
Therefore, central angle of the sector will be 126°.
Answer:
cm 32
Step-by-step explanation: