Answers
Answer:
The probability of getting two tails is [tex]\frac{3}{8}[/tex].
Step-by-step explanation:
There are 8 different possible outcomes: HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT. Since only three of them meet the requirement of only two tails, that means the probability of getting two tails is [tex]\frac{3}{8}[/tex].
Related Questions
If using the method of completing the square to solve the quadratic equation x2 – 3x + 20 = 0, which number would have to be added to "complete the square"?
Answers
Answer:
⁹/₄Step-by-step explanation:
The square is: a²-2ab+b²
We have
[tex]x^2-3x[/tex]
it's: [tex]x^2-2\cdot x\cdot\frac32[/tex]
so we need: [tex]\left(\frac32\right)^2=\frac94[/tex]
[tex]x^2-2\cdot x\cdot\frac32+\frac94-\frac94+20=0\\\\(x-\frac32)^2-2.25+20=0\\\\(x-\frac32)^2=-17.75[/tex]
witch, of course, means no solution
The area of a rectangle is 50 units?.
The length is 2, and the width is a
What is the value of x?
What is the width of the rectangle?
Answers
Find the volume use pi as part of the equation round to nearest hundred
Answers
Answer:
V = 340.339
Step-by-step explanation:
V = [tex]\frac{\pi r^{2} h }{3}[/tex]
V = [tex]\pi[/tex][tex](5)^{2}[/tex] [tex]\frac{13}{3}[/tex] = 25[tex]\pi[/tex] [tex]\frac{13}{3}[/tex] = about 340.3392 = 340.339
Answer:
340.17 ft.
Step-by-step explanation:
Using the formula, πr²h ÷ 3 (3.14 × radius × radius × height ÷ 3), we can plug-in the unknown values.
'r' means radius; 'h' means height; 'π' means pi.
The radius is 5; the height is 13.
πr²h (3.14 × radius × radius × height ÷ 3) - π5² × 13 = 340.166666667 (3.14 × 5 × 5 × 13 ÷ 3 = 340.166666667)
340.166666667 ≈ 340.17
Therefore, the area of this circular cone is 340.17 ft.
find the remainder when x⁴+x³-2x²+x+1 divided by x+1
Answers
Answer:
[tex]\frac{-2}{x+1}[/tex]
Step-by-step explanation:
[tex]x^3-2x+3-\frac{2}{x+1}[/tex]
also if ur brainly staff and seeing this
plz remove/delete my account asap tysm
i need help with this
Answers
Sq:
6*6=36
RG:
13+4=17
17*5=85
4*4=16
36+16+85=137
A= 137 in^2
Find A and B. Using the image above.
Answers
Answer:
a = 7, b = [tex]\frac{7\sqrt{3} }{3}[/tex]
Step-by-step explanation:
Using the sine ratio in the left right triangle and the exact value
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{a}{7\sqrt{2} }[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )
a × [tex]\sqrt{2}[/tex] = 7[tex]\sqrt{2}[/tex] ( divide both sides by [tex]\sqrt{2}[/tex] )
a = 7
--------------------------------------------------------
Using the tangent ratio in the right triangle on the right and the exact value
tan60° = [tex]\sqrt{3}[/tex] , then
tan60° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{a}{b}[/tex] = [tex]\frac{7}{b}[/tex] = [tex]\sqrt{3}[/tex] ( multiply both sides by b )
b × [tex]\sqrt{3}[/tex] = 7 ( divide both sides by [tex]\sqrt{3}[/tex] )
b = [tex]\frac{7}{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex] = [tex]\frac{7\sqrt{3} }{3}[/tex]
.
Which of the following shapes could have a triangular cross-section? Prism ,Cone ,Cylinder ,Pyramid ?
A) Prisms only
B) Prisms and Cones
C) Prisms, Cones, and Pyramids
D) Prisms, Cylinders, and Pyramids
please help me
Answers
Hope this helped
A shipping container is in the shape of a right rectangular prism with a length of 7.5
feet, a width of 1.5 feet, and a height of 6.5 feet. The container is completely filled
with contents that weigh, on average, 0.34 pound per cubic foot. What is the weight
of the contents in the container, to the nearest pound?
Answers
Answer:
3
Step-by-step explanation:
because two plus two
slope (7,-4) and (7,-1)
Answers
Answer:
undefined
Step-by-step explanation:
line is straight up and down
Answer:
Undefined. It ends up being 3/0 which can't happen so it remains undefined.
Step-by-step explanation:
An 8-ft ladder leans against the side of a house. How far is the bottom of the ladder from the side of the house when the angle of elevation of the ladder is 75 7 Round your answer to the nearest tenth.
Answers
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
the side "?" is the Adjacent side (Adj) and we are given the angle and the Hypontenuse ( long side) (Hyp) of this triangle
so use CAH
cos(75) = Adj / 8
algebra to solve for the Adj side (which is the "?" for this problem )
8*cos(75) = Adj
2.07055 = Adj
so the "?" is 2.1 ft ( rounded to the nearest 10th )
What is the result when the number 72 is decreased by 44%? Round your answer to the nearest tenth.
Answers
Here is how to solve it.
44% of 72 is 31.68
Now you subtract 72-31.68 and get 40.32.
Then you round to the nearest tenth so then it’s 40.3
Hal and Samantha are going on a trip to the state park. They want to be out there for no more than 8 hours, and they also want to travel at least 30 miles. They can hike at a rate of 3 mph, and they can canoe at a rate of 6 mph. If the solution region is the amount of time they spend hiking and canoeing so that they can meet their goals, which graph's shaded area represents the solution region?
Answers
Answer:
z
Step-by-step explanation:
Lucy places five cards that are labeled 1 to 6 face down on the table and mixes them up.
What is the likelihood that her friend Harry will draw an even numbered card?
Answers
as likely as not
plz plz answer this 10pts:)
Answers
Answer:
8
Step-by-step explanation:
12-4=8
Answer:
12-4=8
8 more students
hope this helps
have a good day :)
Step-by-step explanation:
Write an algebraic expression for the phrase below
12 less than twice a number n
A 12 - n -n B 6 - 2n C 2n - 12 D 12n – 2
Answers
Answer:
The answer is C: 2n - 12. Hope this helps!
2
Steven has 2 different spinners. He spun each spinner several times and recorded the
results in the tables below.
Spinner 1
Outcome Frequency
Red
8
Orange
4.
Yellow
2
Green
6
Spinner 2
Outcome Frequency
Blue
2
Purple
2
Black
1
White
5
Based on these results, if Steven spins each spinner 60 times, which of the following is
the best prediction of his results?
F Spinner 1 would land on orange 6 more times than Spinner 2 would land on purple.
G Spinner 1 would land on orange 10 more times than Spinner 2 would land on purple.
H Spinner 1 would land on orange twice as many times as Spinner 2 would land on purple.
3 Spinner 1 would land on orange the same number of times that Spinner 2 would land
on purple
Answers
Answer:
ok so the answer would be h
Step-by-step explanation:
so basically the ratio is 4:2 -1:2 so purple is 2 and orange is 4. meaning purple is half of the orange. that ratio stays the same. if you were to multiply puplr by 60 you get 120. and if you multiply 4 by 60 you get 240. which 240 divided by 120 is 2 meaning h is the right answer choice.
The correct observation is Spinner 1 would land on orange the same number of times that Spinner 2 would land on purple.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
Total times spined = 60
Spinner 1 land on orange out 60 times
= 4/20 x 60
= 1/5 x 60
= 12
Spinner 2 land on Purple out 60 times
= 2/10 x 60
= 1/5 x 60
= 12
Hence, Spinner 1 would land on orange the same number of times that Spinner 2 would land on purple.
Learn more about Fraction here:
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please answer as soon as possible !!!
Answers
Answer:
hey I will answer.
Step-by-step explanation:
translation: 1 unit right and 2 units down ... U (-3,-4), M(-1,-1), L(-2,-5) ... R(-4, -3), D(-4,0), L( 0,0), F(0, -3) ... 7) translation: 2 units left and 1 unit down ... D(-4,1), A(-2,5), s-1, 4), N-1, 2).
A bag of M&M's have 5 red, 9 green and 2 brown left in it. You draw out one M&M and put it back then draw another. What is the probability of drawing a red first and a red second? Write your answer as a decimal rounded to the nearest thousandth
Answers
Answer:
0.098
Step-by-step explanation:
Plz help geometry will mark brainliest!!
Answers
Answer:
x = 20
Step-by-step explanation:
It doesn’t say to find m it says to find the angle c
The m in front of the notation refers to the “measure of angle” labeled C
Hence the answer is 46°
Consider right triangle MNO below which expression represents the length of side MN
Answers
We can use a scientific calculator or look up the sine of 25 degrees in a table of trigonometric values. The answer would be approximately 2.13 cm.
What do you mean by Right Angle Triangle?A right angle triangle is a triangle in which one of the angles is equal to 90 degrees. In other words, it is a triangle in which one angle is a "right angle." Right angle triangles are commonly used in geometry and trigonometry, and they play a crucial role in many real-world applications, such as surveying, construction, and navigation.
In a right triangle, the length of one side can be found using the sine function. The sine of an angle in a right triangle is defined as the ratio of the length of the opposite side to the length of the hypotenuse. In this case, the angle MNO is 25 degrees, so we can write the following equation to find the length of side MN:
MN = NO * sin(25°) = 4 cm * sin(25°)
To find the numerical value of MN, we can use a scientific calculator or look up the sine of 25 degrees in a table of trigonometric values. The answer would be approximately 2.13 cm.
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Answer:C and D
Step-by-step explanation:
Complete the table using the equation
Answers
Answer:
x -1 0 1 2 3
y 2 4 6 8 10
Step-by-step explanation:
y = 2x + 4
x = -1: y = 2(-1) + 4 = 2
x = 0: y = 2(0) + 4 = 4
x = 1: y = 2(1) + 4 = 6
x = 2: y = 2(2) + 4 = 8
x = 3: y = 2(3) + 4 = 10
x -1 0 1 2 3
y 2 4 6 8 10
A boat leaves the dock and travels 9 miles due south, then 12 miles due west.
How far is the boat from the dock?
Dock
9 mi
Boat
12 mi
A. 15 mi
B. 21 mi
Answers
A boat leaves the dock and travels 9 miles due south, then 12 miles due west. Hence, the length of the boat from the dock will be 15 miles.
What is Pythagoras's Theorem?If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:
[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]
where |AB| = length of line segment AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the hypotenuse).
A boat leaves the dock and travels 9 miles due south, then 12 miles due west.
Let x be the length of the boat from the dock.
From the Pythagoras' theorem
[tex]|x|^2 = |12|^2 + |9|^2 \\\\x^2 = 144 + 81\\\\x^2 = 225\\\\x = \sqrt{225} \\\\x = 15[/tex]
Hence, the length of the boat from the dock will be 15 miles.
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Evan recorded the total inches of rain per week during two wet spring months. He ordered his data in the list below. Weekly rainfall (inches): 2.4, 2.9, 3.6, 3.8, 4.1, 4.2, 4.7, 5. Which measure(s) best describes the weekly amount of rain during this period, to the nearest tenth of an inch?
A.the median only: about 3.9 in.
B.either the mean (about 3.8 in.) or the median (about 3.9 in.)
C.the mean only: about 3.8 in.
D.the range only: 2.6 in.
Answers
Answer:
B?
Step-by-step explanation:
Is algebra.
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Answers
Mindy is the head cheerleader on her suad. She is making banners to place throughout the school for the first football game of the season. She used ⅔ cup of glitter to make 1 cup of glittery paint. Using this same proportion, how many cups of glitter will Mindy use to make 9 cups of glittery paint?
Answers
Answer:
[tex]6\:\text{cups}[/tex]
Step-by-step explanation:
Since the proportion is maintained, we can set up the following proportion:
[tex]\frac{2/3}{1}=\frac{x}{9}[/tex], where [tex]x[/tex] is the amount of glitter, in cups, Mindy will use to make 9 cups of glittery paint.
Cross-multiply to get:
[tex]1x=9\cdot \frac{2}{3},\\x=9\cdot \frac{2}{3}=\boxed{6\:\text{cups}}[/tex]
At what rate percent will the interest on Rs. 6300 in 10 years be equal to its principal?
Answers
Answer:
the answer is 10÷6300×100=0,16%What is the interquartile range (IQR)?
Answers
Answer:
IQR = 3
Step-by-step explanation:
if you create a box plot from the data provided, you get these values:
minimum: 4
quartile 1: 5
median: 6.5
quartile 3: 8
max: 22
range: 18
IQR is the difference between the 3rd and 1st quartiles
∴ the answer is 8-5 or 3
Eric starts with 10 milligrams of a radioactive substance. The amount of the substance decreases by 12 each week for a number of weeks, w. He writes the expression 10(12)w to find the amount of radioactive substance remaining after w weeks. Andrea starts with 1 milligram of a radioactive substance. The amount of the substance decreases by 20% each week for a number of weeks, w. She writes the expression (1−0.2)w to find the amount of radioactive substance remaining after w weeks. Use the drop-down menus to explain what each part of Eric’s and Andrea’s expressions mean.
Answers
Answer:
In Pic
Brainliest?
Step-by-step explanation:
Answer: Mark as brainliest "If" help
Step-by-step explanation: Hope It helps,,
plz this is due today
Answers
Answer:
F
Step-by-step explanation:
3.5*3=10.5
Sofia buys 6 goldfish. Each goldfish costs $2. Sofia pays for the goldfish with one $10 bill and one $5 bill.
How much change does Sofia get back?
Answers
Answer:
$3
Step-by-step explanation:
6 x $2 = $12
$15 - $12 = $3
$3 Answer
Answer:
3 is your answer i have the same quiz
Step-by-step explanation: