Find the circumference.
Use 3.14 for pi
r = 4 cm
C = [?] cm
C=pi d
Answer:
apply the formula::: C=2 pi r
c= 2×3.14×4
c= 25.12 cm
Can someone please do 12!
Answer:
i belive the amount of different car colors and sorry for no more explanation
Step-by-step explanation:
Solve the equation for x .........
Answer:
-30
Step-by-step explanation:
-x/10 = 3
-x = 3 * 10 (transposing)
-x = 30
x = -30
A math teacher noticed that 70% of seventh graders completed an extra credit assignment. About how many of 130 seventh graders would complete the extra credit assignment?
Answer:
91 students
Step-by-step explanation:
130 x 70% =91
Answer:
91 students
Step-by-step explanation:
so we are looking for 70% of 130
so we do the following:
130*.70
91 students
69. A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 of them attended the midnight showing. The Type I error is to conclude that the percent of EVC students who attended is ________. a. at least 20%, when in fact, it is less than 20%. b. 20%, when in fact, it is 20%. c. less than 20%, when in fact, it is 20%. d. less than 20%, when in fact, it is less than 20%
Answer:
a. at least 20%, when in fact, it is less than 20%.
Step-by-step explanation:
Type 1 Error is to reject null hypothesis when it is actually true.
Here the null hypothesis is fewer than 20% of Evergreen Valley College (EVC) students attended the show.
In mathematics fewer than 20% means less than 20%.
So the null hypothesis is that less than 20 % students attended the show.
We have to reject this hypothesis .
We can reject this hypothesis when we assume that the % is greater than or equal to 20 %
At least 20% means greater than or equal to 20%.
So the best choice is option a.
at least 20%, when in fact, it is less than 20%.
The diameter of a circle is 8 cm. Find its circumference in terms of \piπ.
Here is your answer ^^
----------------------------------
C≈25.13cm
Explanation:
C=2πr
d=2r
Solving for C:
C=πd=π·8≈25.13274cm
-------------------------------------
Anyways bye! <3
Convert 124°F to Celsius . .
ω
Answer:
answer is C
Step-by-step explanation:
Answer: 50.6
Step-by-step explanation:
Though I am pretty sure it is 51.1 degrees C 50.6 is the closest option to that.
Have A Wonderful rest of your day!! :)
Examine the equation below. Use it to answer question 54.
6x + 3 = 3 (2x + 3)
Question 54 *
Which statement correctly explains whether the equation is true or not?
A.
B.
C
D.
It is not true because all the x values should be on the same side of the equation
It is true because the terms on the left are multiples of 3
It is not true because 3 x 3 does not equal 3
It is true because óx equals 3 * 2x
D= it's is true because ox equals 3*2x
If Timmy has 38 apples, and Tina’s favorite food is mango, how were the stars aligned in the sky on March 16th, 1876?
Answer:
The real question is why do the people in math problems have an unnecessary amount of objects? also the answer is capricorn
Step-by-step explanation:
Identify Slope and Y intercept for the equation X=4 M=B=
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
x = .9
Step-by-step explanation:
Tan = Opposite over Adjacent
[tex]tan(83)=\frac{7}{x}[/tex]
* multiply each side by x *
[tex]tan(83)*x=xtan(83)\\\frac{7}{x} =7\\xtan(83)=7[/tex]
* divide each side by tan(83) *
[tex]\frac{xtan(83)}{tan(83)} =x\\\frac{7}{tan(83)} =0.8594919263\\x=0.8594919263[/tex]
* round to the nearest tenth of a foot *
we get that x = .9
The length of a line is 63 centimetres, correct to the nearest centimetre.
Write down the least possible length of the line.
(1 mark)
Answer:
this question needs more detail
Step-by-step explanation:
I would just say 0 as the least possible length of the line
7) A $125.70 grocery total is discounted 30%.
What is the total paid?
Answer:
$87.99 is the total
Answer:
$87.99
Step-by-step explanation:
Okay so you have to change the 30% to a decimal. it will be .3, now multiply 125.7 by .3 and get 37.71. now subtract this from the total to find the amount paid.
Refer to OP for Exercises 1-8. If SN and MT are diameters with m/ SPT 51 and m/ NPR 29, determine whether each arc is a minor arc, a major arc, or a semicircle. Then find the degree measure of each arc.
1. MNR
3. mTSR
2. MST
4. mMST
If MT= 15, find the length of each arc. Round to the nearest tenth.
5. NR
7. TSR
6. ST
8. MST
M
N
R
Geometry
Step-by-step explanation:
the answer is a
Please help me with this! I will give brainlist!
Answer:
Its the 2nd Dot
Step-by-step explanation:
GEOMETRY HELP PLEASE ASAP!!
1
Find the cubes of the following numbers: a) 21 b) 55 c) 302
Answer:
21 cubed is 9261
55 cubed 166375
302 cubed 27543608
hope this helps
have a good day :)
Step-by-step explanation:
Which arithmetic sequence has a first term equal to 47 and a common difference of -18?
a.{-18, -65, -112, -159, …}
b.{47, 29, 11, -7, …}
c.{-18, 29, 76, 123, …}
d.{47, 65, 83, 101, …}
Answer:
b
Step-by-step explanation:
There are 2 sequences with a₁ = 47, b and d
The common difference of both is
(b)
d = a₂ - a1 = 29 - 47 = - 18
(d)
d = a₂ - a₁ = 65 - 47 = 18
The the sequence with first term 45 and common difference - 18 is b
The required sequence which has a first term equal to 47 and a common difference of -18 is {47, 29, 11, -7, …}. Option B is correct.
What is arithmetic progression?Arithmetic progression is the series of numbers that have common differences between adjacent values
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
Here,
An arithmetic sequence has a first term equal to 47 and a common difference of -18,
a = 47
d = -18
The sequence formed given as,
⇒ a, a + d, a + 2d, a + 3d
⇒ 47, 47 - 18, 47 + 2(-18), 47 + 3(-18)
⇒ 47 , 29, 11, -7 . . . . .
Thus, the above sequence matches the sequence given in option b.
Learn more about arithmetic progression here: https://brainly.com/question/20334860
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A circular plate had a diameter of 10 cm. The rectangular table it sits on
has dimensions of 5000mm x 3600mm. How many plates can fit on this
table? What is the percentage they cover?
Please help me it’s 10 points also this is my first time on this app
Answer:
2292.9936
Step-by-step explanation:
circular plate had a diameter of 10 cm. The rectangular table it sits on
has dimensions of 5000mm x 3600mm. How many plates can fit on this
table? What is the percentage they cover?
Please help me it’s 10 points also this is my first time on this app
Given :
Dimension of table :
5000 mm * 3600 mm
Area of rectangle = Length * width
Area of table = 5000 * 3600
Area of table = 18000000 mm²
Recall :
1 cm = 10 mm
Diameter of circular plate = 10cm
Converting to mm :
10 * 10 = 100 mm
Area = diameter/ 2 = 100 mm / 2 = 50 mm
Area of a circle = πr²
Area of circular plate = 3.14 * 50² = 7850 mm²
Number of plates = 18000000 / 7850
= 2292.9936 plates
About 2293 plates
if you can help me youre a legend :)
Answer:
A. 9
B. 7
Step-by-step explanation:
A. 11 - 2 = 9
B. 1 + 6 = 7
The archway of the main entrance of a university is modeled by the quadratic equation y = -x^2 + 6x. The university is hanging a banner at the main entrance at an angle defined by the equation 4y = 21 − x. At what points should the banner be attached to the archway?
A. (1, 5.5) and (5.25, 6.56)
B. (1, 5) and (5.25, 3.94)
C. (1.5, 4.87) and (3.5, 4.37)
D. (1.5, 5.62) and (3.5, 6.12)
E. There is no real solution.
Answer:
B
Step-by-step explanation:
https://www.wolframalpha.com/input/?i=y+%3D+-x2+%2B+6x%3B+4y%3D21-x
Find the volume of the sphere. Round your answer to the nearest tenth.
Use 3.14 for it.
16 cm
The volume of the sphere is about|
cm?
Mr.Jones owns a greenhouse. He planted 100 tomato plants. only 72 of those plants survived. Write this as a percentage,a decimal,and a fraction.
a rectangle with a length of 9 inches and a width of 8 inches is divided in to squares of with sides of length 1 inch.One third of these squares are painted red , 1/8 of the remaining squares are painted green, and the others are left unpainted.How many squares are left unpainted?
Answer:
42
Step-by-step explanation:
rectangle = 8x9 = 72
1/3 0f 72 = 24 (72-24= 48)
1/8 of 48 =6 48-6 =42
red-----24
green-----6
unpainted-----42
24+6+42+=72
The 42 squares are left unpainted.
What is the area of the rectangle?The area of the rectangle is the product of the length and width of a given rectangle.
The area of the rectangle = length × Width
The area of rectangle = 8 x 9 = 72
One-third of these squares are painted red, 1/8 of the remaining squares are painted green, and the others are left unpainted.
1/3 of 72
1/3 x 72 = 24
(72-24= 48)
1/8 of 48
1/8 x 48 = 6
( 48-6 =42)
So,
red = 24
green = 6
unpainted = 42
The 42 squares are left unpainted.
Learn more about the area;
https://brainly.com/question/1658516
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Drag the tiles to the correct boxes to complete the pairs.
Simplify the mathematical expressions to determine the product or quotient in scientific notation. Round so the first factor goes to the hundredths place.
Answer:
d
Step-by-step explanation:
please answer below :-)
Answer:
B. 88.8
Step-by-step explanation:
let x represent class y
(x+71.2)/2=80 multiply each side by 2
x+71.2=160 subtract 71.2 by both sides
x=88.8
or
trial an error
replace x with each of the numbers and see if it plugs in.
example:
(80.5+71.2)/2=80
151.7/2=80
75.85=80?
false. incorrect
another example:
(88.8+71.2)/2=80
160/2=80
80=80?
true. correct
elliot is going to save $15 per week
Answer:
B. 15-W
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
A.)
Step-by-step explanation:
because if elliot gets 15$ each week the it would be a
Last night Danielle had a birthday party. 1/3 of the birthday cake was leftover. She wanted to share the leftover birthday cake with 44 friends the next day. How much of the birthday cake would each get if they shared it equally?
Answer:
1/132
Step-by-step explanation:
1/3 ÷ 44 would be solved by multiplying 1/3 and 1/44 which is 1/132
i need help on this question.
HELP ME PLEASE WHAT IS
What is 2/5 divided by 3/4 IT CAN NOT BE A DECIMAL
Answer: 2/5, if it cannot be a decimal it is a fraction, same goes for 3/4!!
Step-by-step explanation: