Answer:
9/100
Step-by-step explanation:
There are 10 marbles in the bag
There are 3 pink marbles.
P (1st marble pink) = pink marbles/ total marbles
= 3/10
We put the marble back.
There are 10 marbles in the bag
There are 3 pink marbles.
P (2nd marble pink) = pink marbles/ total marbles
= 3/10
Multiply the probabilities together
P (pink, then pink) = 3/10 * 3/10 = 9/100
What is the value of median for the following:68,69,71,71,72,72,72,74,74,76
Answer:
The median is 72.
Answer:
72
Step-by-step explanation:
68 69 71 71 72 72 74 74 76
68 76 69 74 71 74 71 72 72
72 is the median
which is the graph of
[tex]y = \sqrt[3]{x + 1} - 2[/tex]
ANSWER
See attachment.
EXPLANATION
The given function is
[tex]y = \sqrt[3]{x + 1} - 2[/tex]
The parent function is
[tex]y = \sqrt[3]{x} [/tex]
When we shift the parent graph to the left one unit, and down 2 units, we obtain the graph of the given function.
The graph of this function is shown in the attachment.
Draw a shape to match the clues. Yin draw a shape with 4 sides. She labels it as a rectangle
Answer:
The diagram is shown in the attached image
Explanation:
We are given that Yin labelled her diagram a rectangle
This means that the shape she drew:
1- Is a four sided closed polygon
2- Has equal opposite sides (each two opposite sides are equal)
3- Has parallel opposite sides (each two opposite sides are parallel)
4- Has 4 right angles (all its interior angles are 90°)
This is shown in the attached image
Hope this helps :)
Help on number 7 please?
Answer:
The average rate of change is 3
Step-by-step explanation:
0 to 5 is 5 in difference then the change on the next one: 1 to 9 the difference is 8 so the change is 3 and it increases by three on the rest of them.
(\) QueTooOfficial (/)officially out of brainly retirementI'm pretty sure the average rate of change would be 3
Which points are coplanar and non-collinear.Will mark Brainiest
Answer:
I believe A, C, and D are Coplanar and i think B. is non-collinear.
Step-by-step explanation:
A, C and D are coplanar because they lie on the same line.
B is non-collinear, because it don't lie on the same line as A, C, and D.
Hope my answer has helped you!
The distance from around the Earth along a given latitude can be found using the formula C=2∏r cos L , where r is the radius of the Earth and L is the latitude. The radius of Earth is approximately 3960 miles. Describe the distances along the latitudes as you go from 0° at the equator to 90° at the poles.
Answer:
The distance reduces to 0 as you go from 0° to 90°
Step-by-step explanation:
The question requires you to find the distance using different values of L and check the trend of the values.
Given C=2×pi×r×cos L where L is the latitude in ° and r is the radius in miles then;
Taking r=3960 and L=0° ,
C=2×[tex]\pi[/tex]×3960×cos 0°
C=2×[tex]\pi[/tex]×3960×1
C=7380[tex]\pi[/tex]
Taking L=45° and r=3960 then;
C= 2×[tex]\pi[/tex]×3960×cos 45°
C=5600.28[tex]\pi[/tex]
Taking L=60° and r=3960 then;
C=2×[tex]\pi[/tex]×3960×cos 60°
C=3960[tex]\pi[/tex]
Taking L=90° and r=3960 then;
C=2×[tex]\pi[/tex]×3960×cos 90°
C=2×[tex]\pi[/tex]×3960×0
C=0
Conclusion
The values of the distance from around the Earth along a given latitude decreases with increase in the value of L when r is constant
simplify (a + b - c )(a + b + c )
Answer:
The simplest form of (a + b - c )(a + b + c ) is a² + 2ab + b² - c²
Step-by-step explanation:
* Lets revise how to multiply two brackets with three terms
∵ (a + b - c)(a + b + c)
- Multiply the first term of the first bracket by the three terms of the
second bracket
∵ a × a = a²
∵ a × b = ab
∵ a × c = ac
- Then multiply the second term in the first bracket by the three terms
of the second bracket
∵ b × a = ba
∵ b × b = b²
∴ b × c = bc
- Then multiply the third term term in the first bracket by the three terms
of the second bracket
∵ -c × a = -ca
∵ -c × b = -cb
∵ -c × c = -c²
- Now add all these terms together
∴ a² + ab + ac + ba + b² + bc + -ca + -cb + -c²
- We have like terms lets add them
∵ ab = ba , ac = ca , bc = cb
∴ a² + (ab + ba) + (ac + -ca) + (bc + -cb) + b² + -c²
∴ a² + 2ab + 0 + 0 + b² - c²
∴ a² + 2ab + b² - c²
∴ The simplest form of (a + b - c )(a + b + c ) is a² + 2ab + b² - c²
The answer is:
[tex]a^{2} +b^{2} -c^{2} +2ab[/tex]
Why?To solve the problem, we need to remember the distributive property.
The distributive property is defined by the following way:
[tex](a+b)(c+d)=ab+ad+bc+bd[/tex]
Also, we need to remember how to add like terms. The like terms are the terms that share the same variable and the same exponent, for example:
[tex]x+x^{2}+x=x^{2} +2x[/tex]
We were able to add the first and the third term because they share the same variable and the same exponent.
Now, we are given the following expression to simplify:
[tex](a+b-c)(a+b+c)[/tex]
So, applying the distributive property and adding like terms, we have:
[tex](a+b-c)(a+b+c)=(a*a)+(a*b)+(a*c)+(b*a)+(b*b)+(b*c)-(c*a)-(c*b)-(c*c)\\\\(a+b-c)(a+b+c)=a^{2}+ab+ac+ba+b^{2} +bc-ac-bc-c^{2}\\\\(a+b-c)(a+b+c)=a^{2} +b^{2} -c^{2} +2ab[/tex]
Hence, we have that the given expression is equal to:
[tex]a^{2} +b^{2} -c^{2} +2ab[/tex]
Have a nice day!
Write an addition equation or a subtraction equation your choice to describe the dias
CAN SEBODY HELP PLEASE ?!
Answer:
Step-by-step explanation:
Unsure of what you're asking here. What's "dias?"
I do see that the longer arrow has length 5 (there are 5 squares along this arrow from bottom to top) and that the shorter one has length 2.
If we add these two vectors together, we get a vector of length 5 + 2, or 7, that points upward just as these two original vectors do.
yes that would work but just keep that in mind that 1+1=2
Use the remainder theorem to divide 5x^2+9x-2 by x+3. What is the remainder
Answer:
16
Step-by-step explanation:
Given
f(x)=5x^2+9x-2
Remainder theorem states that when f(x) is divided by x-a then the remainder can be calculated by calculating f(a).
Now Using the remainder theorem to divide 5x^2+9x-2 by x+3 to find the remainder:
f(x)=5x^2+9x-2
f(-3) = 5(-3)^2 +9(-3) -2
=5(9) - 27 -2
= 45-29
= 16 !
Answer:
16
Step-by-step explanation:
apexs
Find the greatest common factor of the terms in the following expression: 10x + 12xy.
x
2
2x
2xy
The greatest common factor is 2x
2 can go into both 10 and 12
and so can x
what is angle F to the nearest degree?
Answer:
So we already knew all three sides, there are more than one way to do it, for example:
sin∠F = HG/HF = 12/13
cos∠F = GF/HF = 5/13
tan∠F = HG/GF = 12/5
ctg∠F = GF/HG = 5/12
All of them will give you the result which is approximately 67°.
Evaluate the cosine if the angle of rotation which contains the point (9, -3) on its terminal side
so we know the terminal point is at (9, -3), now, let's notice that's the IV Quadrant
[tex]\bf (\stackrel{x}{9}~~,~~\stackrel{y}{-3})\impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ c=\sqrt{9^2+(-3)^2}\implies c=\sqrt{81+9}\implies c=\sqrt{90} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf cos(\theta )=\cfrac{\stackrel{adjacent}{9}}{\stackrel{hypotenuse}{\sqrt{90}}}\implies \stackrel{\textit{rationalizing the denominator}}{\cfrac{9}{\sqrt{90}}\cdot \cfrac{\sqrt{90}}{\sqrt{90}}\implies \cfrac{9\sqrt{90}}{90}}\implies \cfrac{\sqrt{90}}{10}\implies \cfrac{3\sqrt{10}}{10}[/tex]
Which expression shows six less than the product 12 and 8?
Answer: (12)(8)-6
Step-by-step explanation: Product indicates you are going to multiply the numbers. When you see the phrase "less than" you want to flip the numbers.
55:49
The height, h, of a falling object t seconds after it is dropped from a platform 300 feet above the ground is modeled by the function
h(t) = 300 - 167. Which expression could be used to determine the average rate at which the object falls during the first 3
seconds of its fall?
h(3) – h(0)
h(3)
h(3) - (0)
I believe the correct answer from the choices listed above is option D. The expression that could be used to determine the average rate at which the object falls during the first 3 seconds of its fall would be (h(3)-h(0))/3. Average rate can be calculated by the general formula:
Average rate = (change in y-axis) / (change in x-axis)
In this case,
Average rate = (change in height) / (change in time)
The average rate at which the object falls during the first 3 seconds can be calculated using the equation for average rate of change (h(3) - h(0))/3. Using the given function h(t) = 300 - 16t, this comes out to be -16 feet per second.
Explanation:In this problem, we are given a mathematical model of a falling object, as follows: h(t) = 300 - 16t. Here, the function h(t) represents the height of the object t seconds after it is dropped from a platform 300 feet above the ground.
To determine the average rate at which the object falls during the first 3 seconds, we should use the equation for average rate of change in functions. That is, the change in height divided by the change in time, or (h(3) - h(0))/3.
Let's calculate: h(3) = 300 - 16*3 = 252, and h(0) = 300. Then, the average rate = (252 - 300) / 3 = -48/3 = -16 ft/sec. This indicates that the object falls at an average rate of 16 feet per second during the first three seconds.
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What is the simplest form of the expression 6x(x - 4) – 16x2 - (9x - 1)?
A. -10x2 – 33x + 1
B. 10x2 – 33x + 1
C. -10x – 33x + 1
D. -10x2 + 33x + 1
Answer
b
Step-by-step explanation:
Answer:
− -10x^2-33x+1
Step-by-step explanation:
given that the ratio of boys to girls in a choir group is 17:23, what is the relative frequency of the number of boys?
Answer:
50 Students
You can find the number of boys and girls by dividing the total, so there are a total of 20 boys and 30 girls in the choir of 50. The ratio 2 boys : 3 girls means we can divide the chorus into groups.
ANSWER CORRECTLY ILL GIVE BRAINLIST IF RIGHT :D
Use the Pythagorean theorem:
30^2 + 40^2 = X^2
900+ 1600 = x^2
X^2 = 2500
x = √2500
x = 50
The answer is 50 feet.
Which of the following correctly names one of the vertices of the triangle
below?
i think it is m because it simply the vertex
joke timemy boss told me to have a good day..........so I went homeMy friend says to me "What rhymes with orange" I said no it doesn'ttongue TwistersPeter Piper picked a peck of pickled peppers. How many pickled peppers did Peter Piper pick?How many cookies could a good cook cook If a good cook could cook cookies? A good cook could cook as much cookies as a good cook who could cook cookies.“Send toast to ten tense stout saints’ ten tall tents.”What is the solution to the system of equations?
y=-3x + 6
y= 9
(-21,9) (9, -21)
(-1,9)
(9,-1)
Answer:
y=9
Step-by-step explanation:
(9,-1) is the answer.
Identify the method that will be used to solve for x for each equation.
4x = 20
x – 11 = 9
5x + 6x = 22
5(x – 2) = 30
Answer:
for 4x = 20 you have to use the division property of equality divide 20 by 4
for x - 11 = 9 you have to use the addition property of equality add 9 to 11
for 5x + 6x = 22 you have to combine like terms add 5x and 6x to make 11x
for 5(x – 2) = 30 you have to use the distributive property multiply 5 and x; 5 and -2
4x = 20; x = 5
x - 11 = 9; x = 20
5x + 6x = 22; 11x = 22; x = 2
5(x – 2) = 30; 5x - 10 = 30; x = 8
Answer:
1. B
2. A
3. A
4. B
Step-by-step explanation:
Write the integers -7, 4, -2 and 5 in order from least to greatest. Explain how you decided.
Answer:
-7, -2, 4, 5
Step-by-step explanation:
Integers with a dash in the front of them signify a negative. With negative numbers, the higher the value of the accompanying number, the lower value it has as a negative number, so, of course the negative integers would go from the "least" end of the spectrum. Because 7 has a higher positive value than 2, it has a lower negative value, putting -7 on the lower end, following it with the -2. As 5 has a higher positive value than 4, 5 is put on the highest end on the spectrum, with 4 right behind it. With all of these integers settled, we can organize the numbers in the order of -7, then -2, then 4, then 5.
Step-by-step explanation: To write these integers from least to greatest, first draw a number line and graph each of the integers
In the image provided, notice that I've only labeled every other unit on the number line. This is a labeling technique that we can use to keep things from getting too crowded on the number line.
Now, let's graph our integers.
Integers to the left are always less than integers to to the right. So in this problem, we can see that -7 < -2 < 4 < 5.
A direct variation function includes the ordered
pair (4,5). Which statement is true?
Answer:
Step-by-step explanation:
A direct variation suggest that the value of x in the equation would greatly affect the value of y such that when x is increasing, y also increases and the other way around. The equation for a direct variation is that,
y = kx
Substituting the given values in the ordered pair,
5 = k(4) ; k = 5/4
answer: y = kx hope this helps
how do I solve this
[tex]\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\displaystyle\sum \limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio} \end{cases} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf S_{20}=\displaystyle\sum \limits_{n=1}^{\stackrel{\stackrel{n}{\downarrow }}{20}}~\stackrel{\stackrel{a_1}{\downarrow }}{3}(\stackrel{\stackrel{r}{\downarrow }}{1.5})^{n-1}\implies S_{20}=3\left(\cfrac{1-1.5^{20}}{1-1.5} \right)\implies S_{20}=3\left(\cfrac{1-\stackrel{\approx}{3325.3}}{-0.5} \right) \\\\\\ S_{20}=3\left(\cfrac{-3324.3}{-0.5} \right)\implies S_{20}=3(6648.6)\implies S_{20}=19945.8[/tex]
19945.8 to simplify, the answer is
The length of a rectangle is 4 times its width and the perimeter is 150
feet.
What is the width of the rectangle?
A. 15 feet
B. 75 feet
C. 30 feet
D. 60 feet
Answer:
Y = W = 15 ft.
X= L = 60 ft.
So width is 15 and the length is 60.
Answer: A. 15 feet
Step-by-step explanation:
The formula used to calculate the perimeter of a rectangle is:
[tex]P=2l+2w[/tex]
Where "l" is the lenght of the rectangle and "w" is the width.
You know that the length of this rectangle is 4 times its width. This means that:
[tex]l=4w[/tex]
And you know that the perimeter is 150 feet.
Then, you need to substitute [tex]l=4w[/tex] and the value of the perimeter into the formula and solve for "w":
[tex]150=2(4w)+2w\\\\150=10w\\\\w=\frac{150}{10}\\\\w=15feet[/tex]
Which of the following statements is equivalent to P(Z21.7)?
O P(Z2-1.7)
O 1 - P(z2-1.7)
O P(Z51.7)
O 1-P(z21.7)
The equivalent expression of the expression P (z ≥ 1.7) is,
⇒ 1 - P (z ≥ - 1.7)
What is mean by Probability?The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
We have to given that;
The expression is,
⇒ P (z ≥ 1.7)
Now, By definition of Probability of z - score we get;
⇒ P (z ≥ 1.7) = 1 - P (z ≥ - 1.7)
Thus, The equivalent expression of the expression P (z ≥ 1.7) is,
⇒ 1 - P (z ≥ - 1.7)
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Q4 please help thanks
Answer:
[tex]\large\boxed{A==\dfrac{3-\sqrt6}{12}\ cm^2}[/tex]
Step-by-step explanation:
The shaded region is the triangle with base b and height h.
[tex]b=BD-CD\to b=\dfrac{\sqrt2}{2}-\dfrac{\sqrt3}{3}=\dfrac{3\sqrt2}{(2)(3)}-\dfrac{2\sqrt3}{(2)(3)}=\dfrac{3\sqrt2-2\sqrt3}{6}\\\\h=AD\to h=\dfrac{\sqrt2}{2}[/tex]
The formula of an area of a triangle:
[tex]A=\dfrac{bh}{2}[/tex]
Substitute:
[tex]A=\dfrac{\frac{3\sqrt2-2\sqrt3}{6}\cdot\frac{\sqrt2}{2}}{2}=\left(\dfrac{3\sqrt2-2\sqrt3}{6}\right)\left(\dfrac{\sqrt2}{2}\right)\left(\dfrac{1}{2}\right)\\\\\text{use the distributive property}\ a(b+c)=ab+ac\\\\=\dfrac{(3\sqrt2-2\sqrt3)(\sqrt2)}{(6)(2)(2)}=\dfrac{(3\sqrt2)(\sqrt2)-(2\sqrt3)(\sqrt2)}{24}\\\\\text{use}\ \sqrt{a}\cdot\sqrt{a}=a\ \text{and}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\dfrac{(3)(2)-2\sqrt6}{24}=\dfrac{2(3-\sqrt6)}{24}=\dfrac{3-\sqrt6}{12}[/tex]
Answer:
see explanation
Step-by-step explanation:
The area of the shaded triangle = area of ΔABD - area of ΔADC
A of ΔABD = [tex]\frac{1}{2}[/tex] × AD × BD
A = [tex]\frac{1}{2}[/tex] × [tex]\frac{\sqrt{2} }{2}[/tex] × [tex]\frac{\sqrt{2} }{2}[/tex]
= [tex]\frac{2}{8}[/tex] = [tex]\frac{1}{4}[/tex]
--------------------------------------------------------------------------
A of ΔACD = [tex]\frac{1}{2}[/tex] × AD × DC
A = [tex]\frac{1}{2}[/tex] × [tex]\frac{\sqrt{2} }{2}[/tex] × [tex]\frac{\sqrt{3} }{3}[/tex]
A = [tex]\frac{\sqrt{6} }{12}[/tex]
-------------------------------------------------------------------------
shaded area = [tex]\frac{1}{4}[/tex] - [tex]\frac{\sqrt{6} }{12}[/tex]
= [tex]\frac{3}{12}[/tex] - [tex]\frac{\sqrt{6} }{12}[/tex] = [tex]\frac{3-\sqrt{6} }{12}[/tex]
A gumball machine contains six yellow gumballs, and five orange gumballs. Whats is the probability of obtaining, at a random with out replacement , two yellow gumballs?
A. 36/110
B.36/121
C.36/110
D.30/121
The probability of obtaining at random without replacement two gum balls is 3/11.
What is probability?Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Given, A gumball machine contains six yellow gumballs and five orange gumballs.
So, N(Y) = 6 and N(O) = 5 and the number of sample space N(S) = 11.
Therefore, The probability of obtaining at random without replacement two gum balls is,
P(YY) = (6/11)×(6 - 1)/(11 - 1).
P(YY) = (6/11)×(5/10).
P(YY) = 30/110.
P(YY) = 3/11.
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This is my worse subject please help me
Hello There!
So we know Some number added to 27 gets a sum of -12
We can figure this out by subtracting 27 from -12 so we would go back.
Once we subtract, -39 will be x and that is our answer.
The correct answer is -39
Equal measure? Need help with the questions? Question are at the top in the pic ?
Answer:
1. 4; 2. 32; 3. 9; 4. 8; 5. 12; 6. 16; 7. 6; 8. 8; 9. 8; 10. 8
Nicole has $250 in ten-dollar bills. How many ten-dollar bills does Nicole have?#10
Nicole has 25 ten-dollar bills.
To find out how many ten-dollar bills Nicole has, we can divide the total amount of money she has by the value of each bill.
$250 / $10 = 25
Therefore, Nicole has 25 ten-dollar bills.
Answer in detail:
Nicole has $250 in ten-dollar bills. This means that she has 25 groups of $10.
We can divide $250 by $10 to find out how many groups of $10 she has.
$250 / $10 = 25
Therefore, Nicole has 25 ten-dollar bills.
Another way to look at it is this way:
If Nicole has 1 ten-dollar bill, then she has $10.
If Nicole has 2 ten-dollar bills, then she has $20.
If Nicole has 3 ten-dollar bills, then she has $30.
And so on.
So, to find out how many ten-dollar bills Nicole has, we can simply divide the total amount of money she has by the value of each bill.