Answer:
Find an nth-degree polynomial function.
Step-by-step explanation:
n= 3;
- 2 and 6 + 2 i are zeros;
f(-1)= 53
Find the value of x.
J 31 K
N
M L (9x+23)
Answer:
x = 14°Step-by-step explanation:
mJK + mKL= 180°
31+9x+23= 180°
54+9x=180°
x=180-54/9=126/9
x = 14°
Hope this help!
Simplify the variable expression by evaluating its numerical part, and enter
your answer below.
g- 16/4 +2
simplification of expression will be g - 2
Our expression is g - 16/4 + 2
16/4 = 4
so we c will write it as
g - 4 + 2
which can be further simplified to
g - 2
Therefore, our simplified expression comes out to be g - 2.
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Let f(x) represent the weight of the jar when there are x marbles, where f(0)=10. Which equation correctly represents f(x) in terms of f(x−1) for all x>0?
A
f(x)=3⋅f(x−1)
B
f(x)=f(x−1)+3
C
f(x)=f(x−1)+3x
D
f(x)=f(x−1)+2x+1
Answer:
B
Step-by-step explanation:
We essentially have the sequence:
10, 13, 16, 19, 22,25...
This is an arithmetic sequence because each subsequent term differs only by a constant.
And this constant, the common difference, is +3 since each subsequent term is 3 more than the previous term.
Hence, we can write a recursive formula for our sequence.
We will first define our first term. The first term, at x=0, is 10. Hence:
\(f(0)=10\)
Each term, x, is +3 the previous term (x-1). Therefore:
\(f(x)=f(x-1)+3\)
Hence, our answer is B.
Answer:
B
Step-by-step explanation:
f(x)=f(x-1)+3x
The play attendance decreased from 250 students to 195 students. What was the percent decreased
Answer:
22%Step-by-step explanation:
Given
Original number of students = 250
New number of students = 195 students
Number of students absent = 250 - 195 = 55
percentage decrease = Number absent/Original number * 100
percentage decrease = 55/250 * 100
percentage decrease = 5500/250
percentage decrease = 22%
Hence the percentage decrease is 22%
Simplify three eighths times the quantity 1 plus the square root of 49 end quantity squared minus the quantity four minus one end quantity cubed.
−3
−2
21
24
The value of the given expression is equivalent to -3
Simplifying linear equationsLinear equations are equation that has a linear degree of 1.
The statement three eighths times the quantity 1 plus the square root of 49 end quantity squared minus the quantity four minus one end quantity cubed is written mathematically as:
3/8(1+√49)² - (4-1)³
Expand to have:
3/8(1+7)² - 3³
3/8(8)² -27
3/8(64) - 27
3(8) - 27
24 - 27
-3
Hence the value of the given expression is equivalent to -3
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What is the answer to 5xx2=10
Answer:
5*2=10.
Step-by-step explanation:
So sorry if this isn't the right answer, your equation is a tad confusing. I can edit it if it's wrong, just comment on the answer and I'll respond as fast as possible. Anyways, I hope it's right. If not, please explain what the two 'x's mean.
Answer:
standard form?
Step-by-step explanation: if so its x to the power of 2 +5x-10=0
The volume of the triangular pyramid below is 240 units. Find the value of a.
Answer: =
12
Submit Answer
15
مومی مرده
The value of x in the triangular pyramid is 8 units.
How to find the height of a pyramid?The volume of the pyramid is given as 240 units cube. Therefore, let's find the value of x in the pyramid.
volume of the pyramid = 1 / 3 ×base area × height
Therefore,
base area = 1 / 2 bh
base area = 1 / 2 × 12 × x
base area = 6x
Therefore,
volume of the pyramid = 1 / 3 × 6x × 15
240 = 30x
divide both sides by 30
x = 240 / 30
x = 8 units
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Finde the value of x in the proportion ( 5x+ 1 ):3 =(2x +2): 7(6 x) = (4x) :7
In the proportion (5x + 1):3 = (2x + 2):7, the value of x is -1/29.
In the proportion (6x):(4x) = 7, there is no value of x that satisfies the proportion.
To find the value of x in the given proportions, let's solve them one by one:
(5x + 1) : 3 = (2x + 2) : 7
To solve this proportion, we can cross-multiply:
7(5x + 1) = 3(2x + 2)
35x + 7 = 6x + 6
Subtracting 6x from both sides and subtracting 7 from both sides:
35x - 6x = 6 - 7
29x = -1
Dividing both sides by 29:
x = -1/29
Therefore, the value of x in the first proportion is -1/29.
(6x) : (4x) = 7
To solve this proportion, we can simplify the left side:
6x / 4x = 7
Dividing both sides by 2x:
3/2 = 7
This equation is not true, as 3/2 is not equal to 7.
Therefore, there is no value of x that satisfies the second proportion.
In summary, the value of x in the proportion (5x + 1) : 3 = (2x + 2) : 7 is -1/29, and there is no value of x that satisfies the proportion (6x) : (4x) = 7.
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If mZA = (4x - 2)° and mZB= (6x-20), what is the value of x?
To find the value of x, we can set the two angle measures equal to each other and solve for x.
Given:
mZA = (4x - 2)°
mZB = (6x - 20)°
Setting them equal to each other:
4x - 2 = 6x - 20
Now, we can solve for x:
4x - 6x = -20 + 2
-2x = -18
Dividing both sides by -2:
x = -18 / -2
x = 9
Therefore, the value of x is 9.
Answer:
The answer is 9.
Step-by-step explanation:
We need to use the fact that the sum of the angles in a triangle is 180 degrees. Let A, B, and C be the three angles in the triangle. Then we have:
mZA + mZB + mZC = 180°
Substituting the given values, we get:
(4x - 2)° + (6x - 20)° + mZC = 180°
Simplifying the left side, we get:
10x - 22 + mZC = 180°
Next, we use the fact that angles opposite congruent sides of a triangle are congruent. Since we know that segment AC and segment BC are congruent, we have:
mZA = mZB
Substituting the given values and simplifying, we get
4x - 2 = 6x - 20
Solving for x, we get:
x = 9
Therefore, the value of x is 9.
Julie thinks this will mean the prices will be reduced to $0 after the four reductions because 4 x
25% = 100%.
Explain why Julie is wrong
Answer:
4x25/100=1
Step-by-step explanation:
How I came up with it
4÷100=25
25÷25=1
Julie will only get a 1% discount
Hope it helps
Calc
Maximize Q=xy, where x and y are positive numbers such
that x + 3y² = 25.
Write the chiective function in terms of y
Q=
based on the graph how many tiles are im figure 0
For figure {0}, the number of tiles will be equal to 2.
What is a mathematical function, equation and expression?Function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function
Expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators
Equation : A mathematical equation is used to equate two expressions.
Given is a graph as shown in the image.
The line passes through point -
(3, 8) and (4, 10)
So, the slope of the line will be -
m = (10 - 8)/(4 - 3)
m = 2
y = 2x + c
For the point (3, 8), we can write -
8 = 6 + c
c = 2
For figure {0}, the number of tiles will be equal to 2.
Therefore, for figure {0}, the number of tiles will be equal to 2.
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A water trough is 10 m long and has a cross-section in the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 90 cm wide at the top, and has height 50 cm. If the trough is being filled with water at the rate of 0.1 m3/min, how fast (in m/min) is the water level rising when the water is 10 cm deep?
Answer:
Let's start by finding the volume of water in the trough as a function of its depth.
At a depth of h cm, the cross-sectional area of the water is an isosceles trapezoid with bases of length b1 = 40 + (h/5) cm and b2 = 90 + (h/2) cm, and height 50 cm. The average width of the trapezoid is (b1 + b2)/2 = 65 + (3h/10) cm. Therefore, the volume of water in the trough at this depth is:
V(h) = 10 m x [(65 + (3h/10)) / 100 cm] x h cm
Simplifying this expression, we get:
V(h) = (13/2000) h^2 m^3
Now, we can use the chain rule to find the rate of change of V with respect to time t, given that dV/dt = 0.1 m^3/min:
dV/dt = (dV/dh) x (dh/dt) = (26/2000) h (dh/dt)
At the moment when the water is 10 cm deep, we have:
h = 10 cm
dV/dt = 0.1 m^3/min
Plugging in these values, we get:
0.1 m^3/min = (26/2000) x 10 cm x (dh/dt)
Solving for dh/dt, we get:
dh/dt = 0.1 m^3/min / (26/2000) / 10 cm
dh/dt ≈ 0.192 m/min
Therefore, the water level is rising at a rate of approximately 0.192 m/min when the water is 10 cm deep.
DJ Davon is making a playlist for work; he is trying to decide what 12 songs to play and in what order they should be played. If he has his choices narrowed down to 14 blues, 25 country, and 21 disco songs, and he wants to play an equal number of blues, country, and disco songs, how many different playlists are possible
Answer:
3.63 * 10^19
Step-by-step explanation:
Given that :
Number of choices to select = 12
Category available :
Blues - 14
Country - 25
Disco - 21
To select an equal number of song for each category ; then 4 songs will be selected from each :
Using combination :
(14C4 * 25C4 * 21C4)
Since the order matters for the 12 selected songs ; it thus requires 12 permutation
Thus ;
(14C4 * 25C4 * 21C4) * 12!
nCr = n! / (n-r)!r!
Using calculator;
14C4 = 1001 ;
25C4 = 12650
21C4 = 5985
12! = 479001600
Hence,
(1001 * 12650 * 5985) * 479001600
= 36301596217286400000
=3.63 * 10^19
Select EACH solution for the inequality.
x+3<10
Question 4 options:
x=7
x=20
x=-10
x=-20
Answer:
x = 7
Step-by-step explanation:
x + 3 < 10
x < 10 - 3
x < 7 ( this supposed to be the answer not x = 7 so please check the options again )
Are the triangles similar
Answer:
C. similar by SAS
Step-by-step explanation:
If two numbers are in the ratio 5 : 7 and if
5 is added to each of them, the ratio
becomes 3 : 4. Find the numbers.
Answer:
25 and 35
Step-by-step explanation:
Let the numbers be 5x and 7x
(5x+5)/(7x+5)=3/4
4(5x+5)=3(7x+5)
20x+20=21x +15
20-15=21x-20x
5=x
So,the numbers will be
5x=5*5 =25
7x=7*5=35
Katia placed the rest of the stickers on pages 2 and 3 of her scrapbook, as
shown below
Complete the expression below to represent the total number of stickers on
pages 2 and3
The expression can be completed as 4 × (4 + 3)
How to complete the expression?A mathematical expression is a combination of numbers, symbols, and operations that represent a mathematical relationship or calculation.
Mathematical expressions can be used to represent a wide range of concepts, including algebraic equations, geometric formulas, and statistical models.
Looking at the pages:
On page 2, we have 4 stickers per row while on page 3 we have 3 stickers per row. Also, both page 2 and page 3 have 4 rows each. Thus, we can complete the expression as follows:
4 × (4 + 3)
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If sin 17°Cos17°=p,determine the following in terms of p
We can use the identity sin(2θ) = 2sin(θ)cos(θ) to simplify sin 17°cos 17° as follows:
sin 17°cos 17° = (1/2)sin(2(17°)) = (1/2)sin 34°
Therefore, we can express sin 17°cos 17° in terms of p as:
sin 17°cos 17° = (1/2)sin 34° = (1/2)p
So the value of sin 17°cos 17° in terms of p is (1/2)p.
Suppose there are 16 students in your class. If the teacher draws 2 names at random, what is the probability that you and your best friend will be chosen?
1/15
1/120
1/8
3/31
Answer:
The total number of ways to choose 2 students from a class of 16 is given by the combination formula:
C(16,2) = 16! / (2! * (16-2)!) = (1615) / (21) = 120
This means there are 120 possible pairs of students that could be drawn.
The probability of you and your best friend being chosen is the number of ways that you and your friend can be selected divided by the total number of possible pairs. There is only 1 way to select you and your best friend out of the class of 16, so the probability is:
P(you and your best friend are chosen) = 1/120
Therefore, the probability that you and your best friend will be chosen is 1/120. Option (B) is the correct answer.
Answer:
The probability of choosing one specific student out of 16 is 1/16. After one student is chosen, there are 15 students left, so the probability of choosing the second specific student out of the remaining 15 is 1/15. The probability of both events happening is the product of the probabilities: (1/16) x (1/15) = 1/240. However, there are two ways that the students can be chosen (your friend first, then you or you first, then your friend), so we need to multiply the probability by 2: 2 x (1/240) = 1/120. Therefore, the probability of you and your best friend being chosen is 1/120. Answer: 1/120.
Sin?
Cos?
Or Tan???????????????
Answersin -> 48
Step-by-step explanation:
solve for the length of the horizontal line by doing:
sin(55)=x/58
rearrange: x = sin(55) times 58 = 47.51
round UP to 48
what is 1+2+3+4+...+1000?
Answer:
\(S_{1000}=500500\)
Step-by-step explanation:
\(\displaystyle S_n=\frac{n(a_1+a_n)}{2}=\frac{1000(1+1000)}{2}=500*1001=500500\)
A student takes a 10 question multiple choice quiz- each question having 4 choices. Suppose a student randomly picks an answer for each question. Find the following.
Assume that an A is a 90% (getting at least 9 questions out of 10 right).
The probability that exactly 9 questions are right is 10 (choose one question to get wrong) * (1/4)^9 (1/4 chance of getting each question right) * (3/4) (chance of getting the wrong question wrong) = 10∗3∗(1/4)10 .
The probability that all 10 questions are right is (1/4)10 (1/4 chance of getting each question right).
The total probability of getting an A is (10∗3+1)(1/4)10=31410, or about 0.002956%.
I hope I helped! If I misinterpreted your question, please let me know and I'll try my best to help.
n + 9 = 14 solve isolate the variable
Answer:
5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
n + 9 = 14
=> n + 9 - 9 = 14 - 9. [For isolating the variable we subtract 9 from both sides]
=> n = 5 (Ans) [ Variable isolated]
How many solutions does the system of equations below have? y=-3/4x+1/6
The solution is the point (0, 1/6) y = 1/6
Given the equation y = (-3/4)x + 1/6, which represents a linear equation, there is no "system" of equations involved since there is only one equation.
In this case, the equation is in slope-intercept form (y = mx + b),
where m represents the slope (-3/4) and b represents the y-intercept (1/6).
The slope-intercept form allows us to determine various properties of the equation.
Since there is only one equation, the solution to this equation is a single point on the Cartesian plane.
Each pair of x and y values that satisfy the equation represents a solution.
For example, if we choose x = 0, we can substitute it into the equation to find the corresponding y value:
y = (-3/4)(0) + 1/6
y = 1/6
Therefore, the solution is the point (0, 1/6).
In summary, the given equation has a unique solution, represented by a single point on the Cartesian plane.
Any value of x plugged into the equation will yield a corresponding y value, resulting in a unique point that satisfies the equation.
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The bells are adding a new room to their house. The room will be a cube with volume of 4,913 feet cubed. They are going to put in hardwood floors, and the contractor charged $10 per square foot. How much will the j hardwood floors cost?
Answer:
$ 2,890
Step-by-step explanation:
Volume of a cube = width x length height
Cubic root of 4913 = 17 feet
Area of the floor = 17 x 17 = 289
289 x 10 = $2,890
I really need this so please hurryy for a test btw ppppp
The height of a wave in California varies directly with the seconds that pass by. At 4 seconds, the wave is 6 feet high. Find the constant of variation
Answer:
k=3/2
Step-by-step explanation:
6=k(4) where k is constant, or
k=6/4 which is equal to k=3/2
Solve for x.
ln(x+3) = ln10 - ln(x)
Answer:
x =2
Step-by-step explanation:
Solve for x:
log(x + 3) = log(10) - log(x)
Hint: | Move everything to the left hand side.
Subtract log(10) - log(x) from both sides:
-log(10) + log(x) + log(x + 3) = 0
Hint: | Combine logarithms.
-log(10) + log(x) + log(x + 3) = log(1/10) + log(x) + log(x + 3) = log(1/10 x (x + 3)):
log(1/10 x (x + 3)) = 0
Hint: | Eliminate the logarithm from the left hand side.
Cancel logarithms by taking exp of both sides:
1/10 x (x + 3) = 1
Hint: | Multiply both sides by a constant to simplify the equation.
Multiply both sides by 10:
x (x + 3) = 10
Hint: | Write the quadratic polynomial on the left hand side in standard form.
Expand out terms of the left hand side:
x^2 + 3 x = 10
Hint: | Take one half of the coefficient of x and square it, then add it to both sides.
Add 9/4 to both sides:
x^2 + 3 x + 9/4 = 49/4
Hint: | Factor the left hand side.
Write the left hand side as a square:
(x + 3/2)^2 = 49/4
Hint: | Eliminate the exponent on the left hand side.
Take the square root of both sides:
x + 3/2 = 7/2 or x + 3/2 = -7/2
Hint: | Look at the first equation: Solve for x.
Subtract 3/2 from both sides:
x = 2 or x + 3/2 = -7/2
Hint: | Look at the second equation: Solve for x.
Subtract 3/2 from both sides:
x = 2 or x = -5
Hint: | Now test that these solutions are correct by substituting into the original equation.
Check the solution x = -5.
log(x + 3) ⇒ log(3 - 5) = i π + log(2) ≈ 0.693147 + 3.14159 i
log(10) - log(x) ⇒ log(10) - log(-5) = -i π + log(2) ≈ 0.693147 - 3.14159 i:
So this solution is incorrect
Hint: | Check the solution x = 2.
log(x + 3) ⇒ log(3 + 2) = log(5) ≈ 1.60944
log(10) - log(x) ⇒ log(10) - log(2) = log(5) ≈ 1.60944:
So this solution is correct
Hint: | Gather any correct solutions.
The solution is:
Answer: x = 2
divide! (5x^2 +39x +27) ÷ (x+7) Your answer should give the quotient and the remainder. what is the quotient? ehat is the remainder?
Answer:
Quotient: 5x+4 Remainder: -1
Step-by-step explanation:
Hope this helps!
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