Answer:
23833.41cm²
Step-by-step explanation:
A=πr2=π·87.12≈23833.40992cm²
That rounds up to 23833.41cm²
Step-by-step explanation:
its formula is pi r square so calculate iin own
PERR AMD A PEERN2 SJE
Answer:
3 peers
Step-by-step explanation:
Answer:
Three? Is it three?
Step-by-step explanation:
Find the equation for the circle with center (-1, - 4) and passing through (-5,5).
Answer:
[tex](x+1)^2+(y+4)^2=97[/tex]
Step-by-step explanation:
Hi there!
Equation of a circle centered at (h,k):
[tex](x-h)^2+(y-k)^2=r^2[/tex] where r is the radius
1) Plug in the center
[tex](x-(-1))^2+(y-(-4))^2=r^2\\(x+1)^2+(y+4)^2=r^2[/tex]
2) Plug in the given point and solve for r²
[tex](x+1)^2+(y+4)^2=r^2[/tex]
Plug in (-5,5)
[tex](-5+1)^2+(5+4)^2=r^2\\(-4)^2+(9)^2=r^2\\16+81=r^2\\r^2=97[/tex]
3) Plug r² back into the equation
[tex](x+1)^2+(y+4)^2=r^2\\(x+1)^2+(y+4)^2=97[/tex]
I hope this helps!
Question 8 (1 point) A man launches a toy rocket from the roof of a building 72 feet off the ground. The rocket has an initial velocity of 88 feet per second. The height of the ball t seconds after it was thrown into the air can be modeled by the function. h(t) = -16ť +88t + 72 Find the maximum height that the ball reaches during its flight.
Answer:
thanks for the points and sorry i dont under stand
Step-by-step explanation:
Please help is for now :(
Which is the graph of the function: f(x) = x2 - 4x + 3
Answer:
Option 1
Step-by-step explanation:
To find the graph of the quadratic function, we find it's zeros.
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
[tex]ax^{2} + bx + c, a\neq0[/tex].
This polynomial has roots [tex]x_{1}, x_{2}[/tex] such that [tex]ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})[/tex], given by the following formulas:
[tex]x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}[/tex]
[tex]x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}[/tex]
[tex]\Delta = b^{2} - 4ac[/tex]
f(x) = x² - 4x + 3
This means that [tex]a = 1, b = -4, c = 3[/tex]
So
[tex]\Delta = b^{2} - 4ac = (-4)^2 - 4(1)(3) = 16 - 12 = 4[/tex]
[tex]x_{1} = \frac{-(-4) + \sqrt{4}}{2} = 3[/tex]
[tex]x_{2} = \frac{-(-4) - \sqrt{4}}{2} = 1[/tex]
Zeros at x = 1 and x = 3, that is, it crosses the x-axis at this values, so the graph is given by option 1.
find the value of x: then find the measure of each angle
Answer:
Step-by-step explanation:
In a parallelogram, opposite angles are equal.
∠G = ∠E
5x - 9 = 3x + 11
Add 9 to both sides
5x = 3x + 11 + 9
5x = 3x + 20
Subtract 3x from both sides
5x- 3x = 20
2x = 20
Divide both sides by 2
x = 10
∠G = 5x - 9
= 5*10 - 9
= 50 - 9
∠G = 41°
∠G = ∠E = 41°
In parallelogram, adjacent angles are supplementary.
∠G + ∠D = 180
41 + ∠D = 180
∠D = 180 - 41
∠D = 139
∠D = ∠F = 139°
Mrs Lia has 14 pounds of modeling clay
Answer:
20
Step-by-step explanation:
Answer:
20 is the answer
Step-by-step explanation:
-55x / 2 - 10 > -185 / 2
Answer:
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x < 3
Interval Notation: ( −∞, 3)
I Need Help With This Don’t Seem To Understand 8
IT
Answer:
44.402
Step-by-step explanation:
Equation
SA = 2L*W + 2L*H + 2*WH
Givens
L = 2.7
W=1.13
H = 5
Solution
LW = 2.7 * 1.13 = 3.051
LH = 2.7 * 5 = 13.5
WH = 1.13 * 5 = 5.65
SA = 2*3.051 + 2*13.5 + 2*5.65
SA = 6.102 + 27 + 11.3
SA = 44.402
Ill give brainliest
.........
Answer:
A) $588.60
Step-by-step explanation:
130.8 × 4.5 = 588.6
I need help Thank you i will give brinalist
Answer:
the answer to this is c no association.
Answer:
C
Step-by-step explanation:
The scatter plot doesn't look linear at all. Therefore, there is no association to game attendance and games won.
A Fulcrum of a Pyramid is 6cm Square at the
top and 12cm square at the bottom and is loem highe
Calculate the volume of the fulcrum.
Answer:
288 cubic cm
Step-by-step explanation:
Volume of the pyramid = 1/3 * base area * height
Base area = 12 * 12
Base area - 144 sq. cm
Height = 6cm
Volume of the pyramid = 144 * 6/3
Volume of the pyramid = 144 * 2
Volume of the pyramid = 288 cubic cm
The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 36 liters, and standard deviation of 7 liters.
A) What is the probability that daily production is less than 23.4 liters? Use technology (not tables) to get your probability.
Answer=
(Round your answer to 4 decimal places.)
B) What is the probability that daily production is more than 45.7 liters? Use technology (not tables) to get your probability.
Answer=
(Round your answer to 4 decimal places.)
Answer:
A) 0.0359
B) 0.0829
Step-by-step explanation:
A) Using normalcdf on your calculator, or using something online, you can plug (-1000, 23.4, 36, 7) to represent the lower bound, upper bound, mean, and standard deviation respectively. The probability that daily production is less than 23.4 liters is 0.0359
B) Similarly, we can plug (45.7, 1000, 36, 7) in as the upper bound is infinity, and the lower bound if 45.7. Our answer is then 0.0829
Gopal gave away 25% of his stamps and had 450 stamps left. How
many stamps did he give away?
Answer:
150 stamps
Step-by-step explanation:
100% - 25% = 75%
[tex]\frac{y}{450} :\frac{25}{75}[/tex]
y × 75 = 25 × 450
75y = 11250
75y ÷ 75 = 11250 ÷ 75
y = 150
The table shows the monthly rainfall amount in Honolulu, Hawaii during one year.
Month
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
Rainfall
Amount 2.73 2.35 1.89 1.11 0.78 0.43 0.50 0.46 0.74 2.18 2.27 2.85
(In Inches)
What is the median monthly rainfall amount?
O A. 0.43
OB. 0.47
O c. 1.11
D. 1.50
E. 1.52
Answer:
Option D: 1.50
Step-by-step explanation:
In a bag of marbles, 1/6 are green, 1/12 are yellow, 1/2 are white and 1/4 are blue. If someone
takes a marble from the bag without looking, which color is it most likely to be?
a. White
b. Blue
Absolutely blue have more chance to get because blue have more number of marbal than the white one ok
On a number line , between which two consecutive whole number would 78 be located
Need these written in standard form!
x(y ÷3)^2; use x = 4, and y=9
Answer:
36
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
Identify
x(y ÷ 3)²
x = 4
y = 9
Step 2: Evaluate
Substitute in variables: 4(9 ÷ 3)²(Parenthesis) Divide: 4(3)²Exponents: 4(9)Multiply: 36The volume of a sphere is 2400 cm³, What is the approximate diameter of the sphere?
A) 16.6 cm
B) 10.1 cm
C) 8.3 cm
D) 4.2 cm
Answer:
Option A is the correct answer, since it is the closest answer.
Step-by-step explanation:
volume: V = 4/3 πr³
Try replacing r with half number of the options
A) 4/3 x π x 8.3 ^3 = 2395.09
B) 4/3 x π x 5.05 ^3 = 539.46
C) 4/3 x π x 4.15 ^3 = 299.38
D) 4/3 x π x 2.1 ^3 = 38.79
Solve for 2. Round to the nearest tenth, if necessary,
С
2.5
41
Answer:
3.8
Step-by-step explanation:
We can use sohcahtoa to solve this. First, we know that this triangle is a right triangle, as well as one angle and the opposite side to that angle. We are trying to find the hypotenuse.
Therefore, as sin takes opposite and hypotenuse into account, we can use that to get that sin(41°) = 2.5/x . Multiply both sides by x and divide both sides by sin(41°) to get x = 2.5/sin(41°) =3.8
If x2 =
20, what is the value of x?
Answer:
the square root of 20 is 4.472135955
Step-by-step explanation:
An American roulette wheel contains 38 slots. Eighteen of the slots are colored red and eighteen are
colored black. The remaining two slots are colored green. A ball is spun on the wheel and comes to
rest in one of the 38 slots. If you bet $1 on the color red and win, the house pays you $1 (even
money).
What is the expected value of betting on red?
$1
0-$1
-$5.30
-$0.053
Answer:
- $0.053
Step-by-step explanation:
Bet fee = $1
Probability of red = 18 / 38
Probability of black = 18/38
Probability of green = 2 / 38
x : ____1 _____ - 1 _____ - 1
P(x) : __ 18/38___ 18/38____ 2/38
Mean or expected value, E(X) = Σx*p(x) = (18/38) * * (-18/38) * (-2/38)
E(X) = - 0.052631
E(X) = - $0.053
Do the ratios 7/ 28 and 2/ 8 form a proportion?
Answer:
Step-by-step explanation:
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i need help asap i don’t get it
If two angles of a triangle are congruent, then the sides opposite those
angles are congruent.
A. True
B. False
Answer:
TRUE
Step-by-step explanation:
If two angles of a triangle are congruent then the sides opposite those angles are congruent by the converse to the isosceles triangle theorem
CAN YOU DROP A FOLLOW? :)
♥️
Answer:
True
Step-by-step explanation:
This is Converse Isosceles property theorem.
It states that if two angles of a a triangle are congruent, then the sides opposite to those angles are congruent
Six values on the number line above are marked with letters. Match the opposites.
A certain type of flashlight requires two type-D batteries, and the flashlight will work only if both its batteries have acceptable voltages. Suppose that 90% of all batteries from a certain supplier have acceptable voltages. Among twenty randomly selected flashlights, what is the probability that at least nineteen will work? What assumptions did you make in the course of answering the question posed? a. we have assumed here that the batteries' voltage levels are independent. b. we have assumed here that the batteries' voltage levels are dependent.
Answer:
a) 0.064
b) 0.002
Step-by-step explanation:
a) Assuming that the batteries' voltage levels are independent
Probability = 0.8 * 0.8 = 0.64
b) batteries' voltage levels are dependent
20/19 (0.064)^19 *0.036 + 20/20 (0.064)^20 *0.036^0
= 0.002
If Ryan walks 5 miles in 100 minutes then how far away walk in 113 minutes
he Thomas Supply Company Inc. is a distributor of gas-powered generators. As with any business, the length of time customers take to pay their invoices is important. Listed below, arranged from smallest to largest, is the time, in days, for a sample of the Thomas Supply Company Inc. invoices. 13 13 13 20 26 27 29 32 34 34 35 35 36 37 38 41 41 41 42 44 46 47 48 50 53 55 56 62 67 82 Click here for the Excel Data File (Round your answers to 2 decimal places.) Determine the first and third quartiles. Determine the second decile and the eighth decile. Determine the 67th percentile
Answer:
30.5 ; 49 ; 27 ; 50 ; 45
Step-by-step explanation:
Determine the first and third quartiles. Determine the second decile and the eighth decile. Determine the 67th percentile
Given the ordered data :
13 13 13 20 26 27 29 32 34 34 35 35 36 37 38 41 41 41 42 44 46 47 48 50 53 55 56 62 67 82
Sample size, n = 30
The first quartile ;Q1
Q1 = 1/4(n+1)th term
Q1 = 31/4 = 7.75th term
Q1 = (29+32)/2
Q1 = 30.5
Q3 ;
Q3 = 3/4(n+1)th term
Q3 = 3(31)/4 = 23.25 th term
Q3 = (48 + 50) /2 = 49
2nd decile :
0.2 * (nth term
0.2 * 30 = 6th term = 27
8th decile :
0.8 * 30 = 24 th term
= 50
67th percentile :
0.67 * (n+1)th term
0.67 * 31 = 20.77
= (44 + 46) / 2
= 45