Type the correct answer in the box. Use numerals instead of words.
Helen needs a replacement ball bearing for this part. The surface area of each spherical ball bearing is approximately 452.16 square milimeters.
What is the radius of the bearing that Helen needs to buy? Round your answer to a whole number
Using the surface area of the sphere, it is found that the radius of the bearing that Helen needs to buy is of 6 millimeters.
What is the surface area of a sphere?The surface area of a sphere of radius r is given by:
[tex]S_A = 4\pi r^2[/tex]
In this problem, we have that:
[tex]S_A = 452.16[/tex]
Hence:
[tex]4\pi r^2 = 452.16[/tex]
[tex]r = \sqrt{\frac{452.16}{4\pi}}[/tex]
r = 6.
The radius of the bearing that Helen needs to buy is of 6 millimeters.
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Answer: 6
Step-by-step explanation: NOT NEEDED
The population of a certain city can be modeled by P = 130,000(1.018)t.
Describe what is happening to
the
population as the number of years, t, increases.
A. The population is decreasing
B. The population is increasing
C. The population remains constant
D. The population change is inconsistent
Answer:
D.the population change is inconsistent
Simplify using the value of x.
2x/3; x = 3
[tex]\rule{300}{1}\\\dashrightarrow\large\blue\textsf{\textbf{\underline{Given question:-}}}[/tex]
Simplify using the value of x. 2x/3, x=3.
[tex]\dashrightarrow\large\textsf{\textbf{\underline{Answer and how to solve:-}}}[/tex]
[tex]\bigstar[/tex] Replace x with 3 and evaluate:-
[tex]\sf{\dfrac{2(3)}{3}}[/tex]
[tex]\bigstar[/tex] On simplification,
[tex]\sf{\dfrac{6}{3}}[/tex]
[tex]\bigstar[/tex] Which results in
[tex]\boxed{\bold{\underline{2}}}[/tex]
Good luck with your studies.[tex]\rule{300}{1}[/tex]
Answer:
the answer is 2.. ......... .
A center has a center at X(4, -3) and a point on the circle is W(8, 0). What is the location of Y on the diameter WY?
Answer: (0, -6)
Step-by-step explanation:
The center is the midpoint of the diameter, meaning that the coordinates of Y must be (0, -6).
Is -52/4 equal to -13
Answer:
Yes
Step-by-step explanation:
-52/4 = -(13 × 4)/4
Cancel out 4 we get,
-13 = -13
Thus, -52/4 = -13.
What is the mean? Ill give brainliest
Answer:
7
Step-by-step explanation:
you add all the numbers together and get 70, and then you divide that answer (70) by the amount of numbers that are listed (10), and you get the answer 7. Also if this is wrong its because i'm in class and about to leave so i'm in a rush.
Sandra has $500 in a savings account that earns 1% annual interest. She
leaves that money in the account for 5 years. If inflation averaged 2% pel
year, what happened to the purchasing power of her savings?
•
It increased
It decreased
It stayed the same
It matched inflation
The purchasing power of Sandra's savings according to the description above has decreased.
What happens to the purchasing power of Sandra's savings?It follows from the task content that Sandra's savings attracted an annual interest rate of 1% while the inflation is 2% per annum. On this note, it follows that Sandra's savings purchasing power has reduced as the prices of commodities have gone up and the interest rate is unable to match it.
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An airplane is ascending at a constant rate of 15 feet per second what is the change in altitude during 10 minutes of flight
Answer:
9000 ft
Step-by-step explanation:
Given: A airplane is ascending at a constant rate of 15 feet per second,
What we need to know: The change in altitude during 10 minutes of flight,
60 seconds = 1 minute
60 × 10
= 600 seconds
600 × 15
= 9000 ft
Therefore there was a 9000 ft change in altitude during the 10 minutes of the flight.
In the circle below, BD = 112° and FE = 38° Find m/FCE 10 1000 4
Answer:
∠ FCE = 37°
Step-by-step explanation:
the secant- secant angle FCE is half the difference of the intercepted arcs, that is
∠ FCE = [tex]\frac{1}{2}[/tex] (BD - FE ) = [tex]\frac{1}{2}[/tex] (112 - 38)° = [tex]\frac{1}{2}[/tex] × 74° = 37°
I need help y’all thanks
Answer:
f(x) = 23.5
Step-by-step explanation:
The slope when in the 4th quadrant is at 4,100
What is the diameter of a sphere with a volume of 80487 in", to the nearest tenth of an inch?
there are 8 classes in the cafeteria. the ratio of the kindergarten classes to other classes was 1:3. how many classes were NOT from kindergarten
(6TH GRADE)
Answer:
6
Step-by-step explanation:
1+3=4
8÷4=2
Kindergarten = 2×1 =2
Other class = 2×3=6
Ratio of kindergarten classes to other classes is 2:6
In F,if BF = 6 cm, then FD= __cm.
Answer:6
Step-by-step explanation:
All radii of a circle are congruent.
We have a circle with center K with an arc HJ with a measure of 40°. What is the measure of angle HIJ?
40°
60°
80°
20°
The measure of angle HIJ is 20°. The correct option is the last option 20°
Circle GeometryFrom the question, we are to determine the measure of angle HIJ
From one of the Circle theorems, we have that
The angle at the center of a circle is twice the angle at any part of the circumference
From the information,
The measure of arc HJ is 40°. That is, the angle at the center is 40°.
Then, using the above theorem,
Measure of angle HIJ = 40° / 2
Measure of angle HIJ = 20°
Hence, the measure of angle HIJ is 20°. The correct option is the last option 20°
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Answer:
20°
Step-by-step explanation:
Does anybody know this?Two complementary angles are in the ratio of 4:6 find the measure of the smallest angle and the value of x.
Answer:
36
Step-by-step explanation:
A ratio 4:6 means the one quantity is 4/10 of the full thing:
While the other quantity is 6/10 of the full thing
So the smaller angle will be 4/10 of the the complementary angle.
Complementary angle is 90.
So 4/10 of 90 is 36.
what is the radius of the circle?
Using Pythagoras theorem:-
H²= P²+ B²
Putting the value in equation
[tex] {x}^{2} = {5}^{2} + {3}^{2} \\ {x}^{2} = 25 + 9 \\ {x}^{2} = 34 \\ x = \sqrt{34} = 5.83[/tex]
Answer:- Radius =x= √34 = 5.83In a class of 200 pupils, 60% passed in an examination. How many failed?
Answer:
80 pupils
Step-by-step explanation:
60% of 200 is 120
200 - 120 is 80.
helppppppppppppppppppppppppppp!!!!!!!
Answer:
the distance is 4
Step-by-step explanation:
helpppp !!! i’m confused!!!!!!!!!
[tex]\dfrac{-4\tfrac13}{-\tfrac 34}\\\\\\=\dfrac{\tfrac{13}3}{\tfrac 34}\\\\\\=\dfrac{13}3 \times \dfrac 43\\\\\\=\dfrac{52}9\\\\\\=5 \dfrac 79[/tex]
Hey guys! Sorry to bother but I need help with these. 5th grade math, will give brainliest! (If you see multiple questions by me that look the same, they are all different.)
Answer:
The first one is 24
Step-by-step explanation:
The second one is 1/16
so I have an idea first number five which is 3 / 1/8 which actually equals 24. and for number six the answer is 1/16
What is the answer for this problem
Answer: Y= -3/7+5
Step-by-step explanation:
Find the slope of the line passing through (-2 , 1) and (1,1)
Answer:
The slope of the line is: M = 0
Step-by-step explanation:
Using the "Slope from 2 points" formula which is \/
M = (y2 - y1) / (x2 - x1)
We just need to input the numbers to find the slope!
M = ( 1 - 1 ) / (1 - - 2 )
Now solve within the parentheses:
M = ( 0 ) / ( 3 )
Which is basically just 0.
I hope the formula: M = ( y2 - y1) / (x2 - x1)
Helps you in the future so you wont have to ask questions like this again.
PLS PLS PLS HELP I DONT HAVE MUCH TIME FOR THIS! I WILL MARK BRAINLIEST AND 22 POINTS!
Answer:
37
Step-by-step explanation:
Find the center and radius of the circle represented by the equation below.
Answer:
Center= (-6,-8)
Radius= 6
Step-by-step explanation:
We use the formula (x-h)^2+(y-k)^2 then plug in our numbers:
[tex](x - h)^2 + (y - k)^2 = r^2\\(x+6)^2 +(y-k)^2=36[/tex]
In the equation -h is 6 so our h (x-coordinate) is -6
In the equation -k is 8 so our k (y-coordinate) is -8
In the equation r^2 is 36 so we take the square root of 36 to get r which is 6.
On a coordinate plane, point F is located at points 3, 7 and point G is located at points 9,7. whats the distance in units between point F and point G? Enter the answer in the box.
Answer:
6 units
Step-by-step explanation:
since the y- coordinates of both points are 7 then the horizontal distance between the points is the absolute value of the difference in the x- coordinates , that is
d = | 9 - 3 | = | 6 | = 6 units , or
d = | 3 - 9 | = | - 6 | = 6 units
What is the fifth term of the sequence described by the following explicit formula? an = 4 + (n + 1)(-5)
a. -26
b. -30
c. -34
d. -20
Answer:
a
Step-by-step explanation:
substitute n = 5 into the explicit formula , then
a₅ = 4 + (5 + 1)(- 5) = 4 + 6(- 5) = 4 - 30 = - 26
Riddle: a half is a third of it. What is it?
Answer:
[tex]\frac{3}{2}[/tex]
Step-by-step explanation:
let n be the number , then
[tex]\frac{1}{3}[/tex] n = [tex]\frac{1}{2}[/tex] ( multiply both sides by 3 )
n = 3 × [tex]\frac{1}{2}[/tex] = [tex]\frac{3}{2}[/tex]
The sum of the roots of the equation x2 + x = 2 is:
Jones planted s flowers. He planted fewer flowers than Kerry. Kerry
planted 50 flowers. Write the expression that shows how many flowers Jones
planted.
Answer:
s < 50
Step-by-step explanation:
This is an inequality that can be used to express the amount of flowers planted. If Jones planted s flowers, Kerry planted 50, and Jones planted less flowers than Kerry, s must be less than 50.
(-9m+9) + (8m+8) simplify
Answer:
M+16m
Step-by-step explanation:
-9m+9 cancel eachother out because it is a negative and a postive value, so you would just put the variable. For 8m+8 it would be 16m because the sre both positive so you would add them like normal
Step-by-step explanation:
[tex] = ( - 9m + 9) + (8m + 8)[/tex]
[tex] = - 9m + 9 + 8m + 8[/tex]
[tex] = - 9m + 8m + 9 + 8[/tex]
= m + 17
hence m + 17 is the answer....
hope it helped !!!