[tex]|\Omega|=6^2=36\\|A|=1\cdot5\cdot2+1=11\\\\P(A)=\dfrac{11}{36}\approx30.6\%[/tex]
Answer:
[tex]P=\frac{13}{36}=0.361[/tex]
Step-by-step explanation:
There are six possible outcomes when rolling a die. Therefore the probability of obtaining a 3 is a given is
[tex]P = \frac{1}{6}[/tex].
When throwing the two dice together, the probability of obtaining a 3 is the same:
[tex]P_1 = \frac{1}{6} * \frac{5}{6} + \frac{5}{6} * \frac{1}{6}=\frac{5}{18}[/tex]
Since the events are independent then the probability of obtaining a three in both dice is:
[tex]P_2 = \frac{1}{6} * \frac{1}{6} = \frac{1}{12}[/tex].
Finally the probability of obtaining a 3 on a given or both is equal to the sum of the probabilities [tex]P_1[/tex] and [tex]P_2[/tex]
[tex]P=\frac{1}{12}+\frac{5}{18}=\frac{13}{36}=0.361[/tex]
When you multiply by 0.01 the decimal point moves to the right or left
Answer:
The decimal point move to the left
Step-by-step explanation:
Let
x ----> a number
we know that
[tex]0.01=\frac{1}{100}[/tex]
When you multiply a number by 0.01 is equal to divide the number by 100
so
[tex]x*(0.01)=\frac{x}{100}[/tex]
therefore
The decimal point move to the left
Please HELPP!!! Solve the system of equations.
y= 2x
y= x^2 - 15
[tex]y=2x\\y=x^2-15\\\\x^2-15=2x\\x^2-2x-15=0\\x^2-5x+3x-15=0\\x(x-5)+3(x-5)=0\\(x+3)(x-5)=0\\x=-3 \vee x=5\\\\y=2\cdot(-3) \vee y=2\cdot5\\y=-6 \vee y=10\\\\(x,y)\in\{(-3,-6),(5,10)\}[/tex]
Solve the system of equations.
4x+3y+6z=3
5x+5y+6z=5
6x+3y+6z=3
Answer:
C. [tex]x=0,\ y=1,\ z=0[/tex]
Step-by-step explanation:
Consider the system of three equations:
[tex]\left\{\begin{array}{l}4x+3y+6z=3\\5x+5y+6z=5\\6x+3y+6z=3\end{array}\right.[/tex]
Multiply the first equation by 5, the second equation by 4 and subtract them:
[tex]\left\{\begin{array}{r}4x+3y+6z=3\\-5y+6z=-5\\6x+3y+6z=3\end{array}\right.[/tex]
Multiply the first equation by 3, the second equation by 2 and subtract them:
[tex]\left\{\begin{array}{r}4x+3y+6z=3\\-5y+6z=-5\\3y+6z=3\end{array}\right.[/tex]
Multiply the second equation by 3, the third equation by 5 and add the second and the third equations:
[tex]\left\{\begin{array}{r}4x+3y+6z=3\\-5y+6z=-5\\48z=0\end{array}\right.[/tex]
Fro mthe third equation
[tex]z=0[/tex]
Substitute it into the second equation:
[tex]-5y+6\cdot 0=-5\\ \\-5y=-5\\ \\y=1[/tex]
Substitute y=1 and z=0 into the first equation:
[tex]4x+3\cdot 1+6\cdot 0=3\\ \\4x+3=3\\ \\4x=0\\ \\x=0[/tex]
The solution is
[tex]x=0,\ y=1,\ z=0[/tex]
Answer:
ageed its C
Step-by-step explanation:
Transform the equation to isolate x:ax=bx + 1 how is the value of x related to the difference of a and b
Answer:
x = [tex]\frac{1}{a-b}[/tex]
Step-by-step explanation:
Given
ax = bx + 1
Collect the terms in x on the left side by subtracting bx from both sides
ax - bx = 1 ← factor out x from each term on the left side
x(a - b) = 1 ← divide both sides by (a - b)
x = [tex]\frac{1}{a-b}[/tex]
How do you multiply two scientific notation values?
Explain the steps you would take to find the product of
6.7 x 106 and 3.2 10 written in scientific notation.
Answer:
case 1) [tex]2.144*10^{12}[/tex]
case 2) [tex]2.144*10^{8}[/tex]
Step-by-step explanation:
case 1) If we have
[tex]6.7*10^{6}[/tex] and [tex]3.2*10^{5}[/tex]
step 1
Calculate the product of the coefficients and powers separately
[tex]6.7*3.2=21.44[/tex]
[tex]10^{6}*10^{5}[/tex] -----> Apply the product of powers rule to add the exponents
[tex]10^{6}*10^{5}=10^{6+5}=10^{11}[/tex]
step 2
we have
[tex]21.44*10^{11}[/tex]
The product is not in scientific notation because the coefficient is greater than 10
step 3
Change the coefficient by moving the decimal one place to the left and increasing the exponent by one
[tex]2.144*10^{12}[/tex]
case 2) If we have
[tex]6.7*10^{6}[/tex] and [tex]3.2*10^{1}[/tex]
step 1
Calculate the product of the coefficients and powers separately
[tex]6.7*3.2=21.44[/tex]
[tex]10^{6}*10^{1}[/tex] -----> Apply the product of powers rule to add the exponents
[tex]10^{6}*10^{1}=10^{6+1}=10^{7}[/tex]
step 2
we have
[tex]21.44*10^{7}[/tex]
The product is not in scientific notation because the coefficient is greater than 10
step 3
Change the coefficient by moving the decimal one place to the left and increasing the exponent by one
[tex]2.144*10^{8}[/tex]
Answer:
Calculate the product of the coefficients and powers separately. Apply the product of powers rule to add the exponents. The product is not in scientific notation because the coefficient is greater than 10. Change the coefficient by moving the decimal one place to the left and increasing the exponent by one.
Step-by-step explanation:
(sample response from edgenuity)
If nP3 /nC2 = 6, find the value of n
[tex]\dfrac{_nP_3}{_nC_2}=6\\\\\dfrac{\dfrac{n!}{(n-3)!}}{\dfrac{n!}{2!(n-2)!}}=6\\\\\dfrac{n!}{(n-3)!}\cdot \dfrac{2(n-2)!}{n!}=6\\\\2(n-2)=6\\\\2n-4=6\\\\2n=10\\\\n=5[/tex]
The value of n is 5
The formula to calculate permulation and combination are:
[tex]_nP_r = \frac{n!}{(n-r)!}\\\\\\_nC_r = \frac{n!}{r!(n-r)!}[/tex]
Putting in values we get:
[tex]_nP_3 = \frac{n!}{(n-3)!}\\\\\\_nC_2 = \frac{n!}{2!(n-2)!}[/tex]
Now we know that
[tex]\frac{_nP_3}{_nC_2} = 6[/tex]
So, putting in values we get:
[tex]\frac{\frac{n!}{(n-3)!}}{\frac{n!}{2!(n-2)!}} =6\\\\ \frac{n!}{(n-3)!} \times \frac{(n-2)! \times 2!}{ n!} = 6\\\\ \frac{1}{(n-3)!} \times (n-2)! \times 2! = 6\\\\ 2(n-2) = 6\\\\ n = 5[/tex]
Thus the value of n is 5.
Solve the equations for x and match the solutions.
Answer:
1. x = -a/6
2. x = 3/a
x = -6/a
Step-by-step explanation:
1. 4 = (6/a)x+5
subtract 5 from both sides
-1 = (6/a)x
divide by 6/a on both sides
x = -a/6
To make that last part simpler, you could think of it as first multiplying by a and then dividing by 6.
2. 7+2ax = 13
subtract 7
2ax = 6
divide by 2
ax = 3
divide by a
x = 3/a
3. -ax-20 = -14
add 20
-ax = 6
divide by -a
x = 6/-a = -6/a
To solve for x in an equation linked with equilibrium concentration and solubility, identify known values, select the right conversion equations, utilize the ICE table method, and substitute the known values into the solubility product expression. Rearrange the equation to solve for x.
Explanation:In this question, we are looking to solve equations linked with equilibrium concentration and solubility. First, we will identify known values from the problem and list them out. This includes figuring out the terms we need to substitute into the solubility product expression and identifying our unknown, x. Afterwards, we need to select the right conversion equations and substitute the known values.
The chemical reaction gives us an ICE (Initial, Change, Equilibrium) table, which is a simplified method used to solve equilibrium problems. Sometimes it might be necessary to consider momenta in the x and y directions to solve for the unknown. When we have the equilibrium concentrations, we substitute these terms into the solubility product expression and solve for x.
Always remember that the goal is to rearrange the equation so that x is on one side by itself, making it easier to solve for. This kind of problem requires a clear understanding of solubility, equilibrium, and algebraic conventions.
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A sphere and a cylinder have the same radius and height. The volume of the cylinder is 27nft3. Which equation gives the volume of the sphere
Answer:
The volume of the sphere is [tex]V=18\pi\ ft^{3}[/tex]
Step-by-step explanation:
we know that
The volume of cylinder is equal to
[tex]V=\pi r^{2}h[/tex]
we have
[tex]V=27\pi\ ft^{3}[/tex]
substitute
[tex]27\pi=\pi r^{2}h[/tex]
simplify
[tex]27=r^{2}h[/tex]
Remember that
A sphere and a cylinder have the same radius and height
so
The height of cylinder is equal to the diameter of sphere
h=2r
substitute
[tex]27=r^{2}(2r)[/tex]
[tex]13.5=r^{3}[/tex] -----> equation A
The volume of the sphere is equal to
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
substitute equation A in the formula of the volume of sphere
[tex]V=\frac{4}{3}\pi (13.5)[/tex]
[tex]V=18\pi\ ft^{3}[/tex]
Answer:
It's (A.) guys
Step-by-step explanation:
A grain silo is shown below: Grain silo formed by cylinder with radius 8 feet and height 172 feet and a half sphere on the top What is the volume of grain that could completely fill this silo, rounded to the nearest whole number? Use 22 over 7 for pi. (4 points) 34,597 ft3 11,532 ft3 35,669 ft3 2,146 ft3
Answer:
Third option: [tex]35,669 ft^3[/tex]
Step-by-step explanation:
You need to use the formula for calculate the volume of a cylinder:
[tex]V_c=\pi r^2h[/tex]
Where r is the radius (In this case is 8 feet) and h is the height (In this case is 172 feet).
The formula for calculate the volume of a half sphere is:
[tex]V_s= \frac{2}{3} \pi r^3[/tex]
Where r is the radius (In this case is 8 feet)
You need to add the volume of the cylinder and the volume of the half-sphere. Then the volume of grain that could completely fill this silo, rounded to the nearest whole number is (Remeber to use [tex]\frac{22}{7}[/tex] for [tex]\pi[/tex]):
[tex]V=(\frac{22}{7}) (8ft)^2(172ft)+ (\frac{2}{3})(\frac{22}{7})(8ft)^3=35,669 ft^3[/tex]
Answer:
The correct answer is third option 35,669 feet³
Step-by-step explanation:
It is given that, Grain silo formed by cylinder with radius 8 feet and height 172 feet and a half sphere on the top
We have to find the volume of cylinder + volume of semi sphere
To find the volume of cylinder
Here r = 8 feet and f cylinder = πr²h
= (22/7) * 8² * 172
= 34596.57 ≈ 34597 feet³
To find the volume of hemisphere
here r = 8 feet
Volume of hemisphere = (2/3)πr³
= (2/3) * (22/7) * 8³
= 1072.76 ≈ 1073 feet³
To find the total volume
Total volume = volume of cylinder + volume of hemisphere
= 34597 + 1073
= 35,669 feet³
The correct answer is third option 35,669 feet³
Two parallel lines are crossed by a transversal.
What is the value of x?
??!!!??!!!!!????
We can solve this problem by using the known value (115) to solve for the angle parallel to the equation.
To find the solve for the angle to the exact right of 115, subtract 115 from 180. This works because 115 and the unknown angle form to make a straight line, which is 180 degrees.
180-115=65
Now, since it is parallel, we know that 5x+5=65 degrees.
Solve the equation.
Subtract 5 on both sides.
5x=60
Divide both sides by 5 to isolate x.
5x=13
The value of x is 13.
Hope this helps!
multiply. (3.5x10^-5) (3x10^-10) express your answer in scientific notation.
Answer:
5.69034 × 1011
Step-by-step explanation:
Decimal
1234000000
Scientific Notation
1.234 x 10^9
×10^
9
1st Number
1.234
×10^
9
Operation
2nd Number
5.678
×10^
11
plz help your get 28 point
The figure that is shaded 6/8 is the square.
If you split the square on more time along like a box pizza, you will get 8 slices and 6 of them shaded.
substitute w = 1 and w = 3 to determine if the two expressions are equivalent
4 (3w + 4) 16w + 12
Answer:
Expressions are not equivalent
Step-by-step explanation:
Given expressions are:
[tex]4(3w+4)\ and\ 16w+12[/tex]
Putting w=1 in both expressions
[tex]4(3w+4)\\=4[3(1)+4]\\=4(3+4)\\=4(7)\\=28\\\\16w+12\\=16(1)+12\\=16+12\\=28[/tex]
Both expression have value 28 on w=1
Putting w=3 in both expressions
[tex]4(3w+4)\\=4[3(3)+4]\\=4(9+4)\\=4(13)\\=52\\\\16w+12\\=16(3)+12\\=48+12\\=60[/tex]
Both expression have different values at w=3
Hence, in order for the expressions to be equivalent they both should produce same value on w=3 too.
So, it can be concluded that both expressions are not equivalent ..
Answer:They are both not equivalent
Step-by-step explanation:
You’re welcome
Could anyone help me find the answer to this algebric equation. it needs to be written in mixed expression (x^2-5x+7)/(x-9)
Answer:
see explanation
Step-by-step explanation:
One way to divide is to use the denominator as a factor in the numerator
Consider the numerator
x(x - 9) + 9x - 5x + 7
= x(x - 9) + 4x - 7
= x(x - 9) + 4(x - 9) + 36 + 7
= x(x - 9) + 4(x - 9) + 43
quotient = x + 4, remainder = 43
Hence
[tex]\frac{x^2-5x+7}{x-9}[/tex] = x + 4 + [tex]\frac{43}{x-9}[/tex]
Consider the quadratic function f(x) = 2x2 – 8x – 10. The x-component of the vertex is . The y-component of the vertex is . The discriminant is b2 – 4ac = (–8)2 – (4)(2)(–10) = .
Answer:
Part 1) The x-component of the vertex is 2 and the y-component of the vertex is -18
Part 2) The discriminant is 144
Step-by-step explanation:
we have
[tex]f(x)=2x^{2}-8x-10[/tex]
step 1
Find the discriminant
The discriminant of a quadratic equation is equal to
[tex]D=b^{2}-4ac[/tex]
in this problem we have
[tex]f(x)=2x^{2}-8x-10[/tex]
so
[tex]a=2\\b=-8\\c=-10[/tex]
substitute
[tex]D=(-8)^{2}-4(2)(-10)[/tex]
[tex]D=64+80=144[/tex]
The discriminant is greater than zero, therefore the quadratic equation has two real solutions
step 2
Find the vertex
Convert the quadratic equation into vertex form
[tex]f(x)+10=2x^{2}-8x[/tex]
[tex]f(x)+10=2(x^{2}-4x)[/tex]
[tex]f(x)+10+8=2(x^{2}-4x+4)[/tex]
[tex]f(x)+18=2(x-2)^{2}[/tex]
[tex]f(x)=2(x-2)^{2}-18[/tex] -----> equation in vertex form
The vertex is the point (2,-18)
therefore
The x-component of the vertex is 2
The y-component of the vertex is -18
Answer:
Consider the quadratic function f(x) = 2x2 – 8x – 10.
The x-component of the vertex is
✔ 2
The y-component of the vertex is
✔ –18
The discriminant is b2 – 4ac = (–8)2 – (4)(2)(–10) =
✔ 144
Which of the following does the situation below best describe?
The enrollment at a high school does not change for 3 years in a row.
A. A relation that is not a function
B. A relation that is a function
C. The range of a function
D. The domain of a function
Answer:
B. A relation that is a function
Step-by-step explanation:
Answer:
B. A relation that is a function
Step-by-step explanation:
Let's see what a function is.
A function is a relation each different input has an output.
The given situation is " The enrollment at a high school does not change for 3 years in a row"
This means the consecutive years, the number of enrollment is the same.
Here each different years mapped with only one output. This is relation is a function.
This is classified as "a constant function" because three different inputs has the same output.
Therefore, the answer is B) A relation that is a function.
Nandini needs more than 80 points to win a game. She has 64 points so far. Which inequality represents p, the number of points she still needs to win the game?
Step-by-step explanation:
80=64+P if its it's there
Answer: I think its B, p+64 > 80.
Step-by-step explanation: P is the points she needs and 64 is the points she already has. They need to be more than 80, so p+64 is greater than 80.
find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3
10x^5
x^3
5x^3
5
Answer:
Option C is correct.
Step-by-step explanation:
We need to find the greatest common factor of the polynomial
10x^5+15x^4-25x^3
The greatest common factor is the number that is divisible by all 3 terms of the polynomial.
so, the common factor is 5x^3 for above polynomial
Taking out the common factor
5x^3(2x^2+3x-5)
Now the term in the bracket has no other common factor
So, the greatest common factor of 10x^5+15x^4-25x^3 is 5x^3
So, Option C is correct.
Answer:
Third option.
Step-by-step explanation:
The greatest common factor (GCF) for a polynomial is defined as the largest monomial that divides each term.
Given the polynomial [tex]10x^5+15x^4-25x^3[/tex], the GCF of the coefficients can be found by descompose each one of them into their prime factors:
[tex]10=2*5\\15=2*5\\25=5*5[/tex]
You can observe that the GCF of the coefficients is:
[tex]GFC_{(coefficients)}=5[/tex]
Now you need to find the GCF of the variables. You can notice that each term has at least one x³, then:
[tex]GFC_{(variables)}=x^3[/tex]
Threfore, the GCF of the polynomial is:
[tex]GCF=5x^3[/tex]
Which equation represents a line that passes through (4,3/4) and has a slope of 3/4
Answer:
The point-slope equation for a line that goes through the point (4, 1/3) with a slope of 3/4 is:
Choice B: [tex]\displaystyle y - \frac{1}{3} = \frac{3}{4}(x - 4)[/tex].
Step-by-step explanation:
This question gives
a point on the line, the slope (a.k.a. gradient) of the line.Consider the point-slope form of the equation of a line in a cartesian plane:
[tex]y - y_0 = m (x - x_0)[/tex],
where
[tex]x_0[/tex] and [tex]y_0[/tex] are the coordinates of the given point. The point on the line is [tex](x_0, y_0)[/tex].[tex]m[/tex] is the slope of the line.For this line:
The given point is [tex]\displaystyle (4,\; \frac{1}{3})[/tex] where [tex]x_0 = 4[/tex] and [tex]\displaystyle y_0 = \frac{1}{3}[/tex].The slope of the line: [tex]\displaystyle m = \frac{3}{4}[/tex].The point-slope equation of this line will be:
[tex]\displaystyle y - \frac{1}{3} = \frac{3}{4}(x - 4)[/tex].
Answer:
B.
Step-by-step explanation:
Got Correct On MyPath.
The equation of a line in slope intercept form is y=mc+b where m is the x-intercept. True or False?
Answer:
False
Step-by-step explanation:
First, there is no x in your equation. I think you meant y = mx + b.
Second, m is the slope, and b is the y-intercept.
A bakery offers a sale price of $2.90 for 4 muffins. What is the price per dozen?
Answer:
4 muffins are of $2.90
1 muffin is of 2.90/4 =0.725
1 dozen(12 muffens) 0.725x12=
Step-by-step explanation:
Answer:
8.70
Step-by-step explanation:
3 * 4 = 12.
12 = 1 dozen
So you have to multiply 2.90 * 3
The answer is 8.70
=======================
That's one way to do the problem. Here's another.
4 muffins = $2.90
12 muffins = x Cross multiply.
4x = 12*2.90
4x = 34.80 Divide by 4
4x/4 = 34.80/4 Do the division
x = $8.70
What is the absolute value of the complex number -4-
2
V14
3.15
14
18
Using the segment addition postulate, which is true?
AB + BC = AD
AB + BC = CD
BC + CD = AD
BC + CD = BD
Answer:
D
Step-by-step explanation:
For the segment addition postulate, two segments added together have to equal the third segment. In other words, if we added them together, the sum should be the first letter of the first line and the second letter of the second line.
BC + CD = BD
What is the solution to the linear equation?
4b + 6 = 2 - 6 + 4
0
b=-2
Ob=0
O b=4
6=6
0
Answer:
the solution of linear equation 4b + 6 = 2 - 6 + 4 is b = -2
Step-by-step explanation:
We need to solve the linear equation
4b + 6 = 2 - 6 +4
Adding constants
4b + 6 = 0
Adding -6 on both sides
4b + 6 -6 = 0 -6
4b = -6
Dividing with 4 on both sides
4b/4 = -6/4
b = -2
So, the solution of linear equation 4b + 6 = 2 - 6 + 4 is b = -2
Answer:
0
Step-by-step explanation:
What is the area of the trapezoid?
16 square units
24 square units
32 square units
36 square units
Answer:
Second option.
Step-by-step explanation:
You can use the formula for calculate the area of a trapezoid. This is:
[tex]A_{(trapezoid)}=\frac{h}{2}(B+b)[/tex]
Where "B" is the larger base, "b" is the minor base and "h" is the height.
You can identify in the figure that:
[tex]B=8units\\b=4units\\h=4units[/tex]
Then you can substitute values into the formula, getting that the area of the trapezoid is:
[tex]A_{(trapezoid)}=\frac{4units}{2}(8units+4units)[/tex]
[tex]A_{(trapezoid)}=24units^2[/tex]
Answer: 24 units or answer b
Step-by-step explanation:
Pay: $8.25 per hour
Hours: 21 hours per week
per week
per month
per year
Answer:
Week: $173.25
Month: $693
Year: $8,316
Step-by-step explanation:
Plz help 20 points answers please
Answer:
total=quantity*price per item on that row
New account balance=old account balance plus total on that row
Step-by-step explanation:
I won't do all of the rows but I will do a couple and explain to you how I got the answer and how you should too:
The total for each row is equal to that row's price per item times that row's quantity.
The amount balance is going to include previous account balance into it. So once you find the total for that row you will take previous account balance and add it to the previous account balance (We are doing adding instead of subtracting because the number we are getting is negative for the total.)
So example:
Second row total is 2(-45.25)=-90.50 so that is what we are adding to 2500.68 or we are subtracting 90.50 from 2500.68 giving us 2410.18
Third row total is 75(-1.39)=-104.25. Third row account balance is 2410.18-104.25=2305.93.
So again total=quantity*price per item on that row
New account balance=old account balance plus total on that row
If you want me to check your forth row to see if you are doing it right, I will.
Original Price:
Discount: 75%
Final Price: $85.99
Answer: $343.96
Step-by-step explanation:
x-0.75x=85.99
0.25x=85.99
Answer:
343.96
Step-by-step explanation:
The discount it 75%. That means we pay 25%
25% of the original price is 85.99
Let x be the original price
x*25% = 85.99
.25x = 85.99
Divide each side by .25
.25x/.25 = 85.99/.25
x =343.96
The original price is 343.96
Evaluate the following expression. Round your answer to two decimal places Log7^e
A. 0.43
B. 1.47
C. 0.51
D. 1.95
The value of the given expression [tex]\log_{7} e[/tex] will be 0.51, i.e. option C.
What is expression ?Expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
We have,
[tex]\log_{7} e[/tex]
So,
Using the log rule,
On solving we get,
[tex]\log_{7} e =0.51[/tex]
So,
This the value of the given expression.
Hence, we can say that the value of the given expression [tex]\log_{7} e[/tex] will be 0.51, i.e. option C.
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Final answer:
The given expression Log₇^eA can be simplified and evaluated to approximately 0.43 when rounded to two decimal places.
Explanation:
Logarithms:
The expression Log₇^eA can be rewritten as Log₇(e). Applying the change of base formula to convert it to a common logarithm form, Log₇(e) = ln(e) / ln(7). Since ln(e) = 1, the result is approximately 0.43, rounded to two decimal places.
Which of the following sets are discrete? Please help :(
Answer:
A,D,E
Step-by-step explanation:
If it just lists out the numbers then it is discrete. So the following are not discrete since it isn't just a list: B and C.
The following are lists: A,D,E