Answer:
12
Step-by-step explanation:
12*12=144
Answer: 12 is the correct answer
Step-by-step explanation:
144 = a × a = 122
Then a = √144 = √(12 × 12)
12 × 12 = 144 or -12 × -12 = 144
The square root of 144 is +12 or -12
This shows that 144 is a perfect square.
Johnny has some nickels and dimes in his pocket, and the change is worth $0.75. He has twice as many dimes and nickels. How many of each type of coin does Johnny have? Whoever answers get brainiest.
IXL Y.8
Vince opened a savings account and deposited $300.00. The account earns 11% interest,
compounded annually. If he wants to use the money to buy a new bicycle in 3 years, how
much will he be able to spend on the bike?
The amount that Vince will be able to spend on the bike, given the amount deposited in the savings account, is $410. 29
How to find the amount to spend?The amount that Vince would have to spend on the bike is the future value of the amount he deposited in the savings account.
This future value is found by the formula:
= Amount deposited x ( 1 + rate) ^ number of years
= 300 x ( 1 + 11%) ³
= 300 x 1. 11 ³
= 300 x 1. 367631
= $410. 2893
= $410. 29
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Divide.
(2x³ − 3x² + 5) ÷ (x − 4)
Answer: \frac{2x^3-3x^2+5}{x-4}
Step-by-step explanation:
a fair -sided die is repeatedly rolled until an odd number appears. what is the probability that every even number appears at least once before the first occurrence of an odd
The probability that every even number appears at least once before the first occurrence of an odd is 1/20.
Given:
A fair 6-sided die is repeatedly rolled until an odd number appears.
There are 6! ways to order the 6 numbers and 3!(3!) ways to order the evens in the first three spots and the odds in the next three spots.
so the probability = 3!*3! / 6!
= 3!*3! / 6*5*4*3!
= 3*2*1 / 6*5*4
= 6*1 / 30*4
= 6/120
= 1/20
Therefore the probability that every even number appears at least once before the first occurrence of an odd is 1/20.
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Today, the mountain that contains Mount Rushmore is approximately 5,675 feet high. The height of the mountain is 622.5 feet less than 1.1 times its height before construction began.
The equation to find the height of the mountain prior to construction, represented by the variable h, is
1.1h – 622.5 = 5,675
Solve an equation to find the height of the mountain prior to construction, represented by the variable h.
h =
feet
5725 is the height of the mountain prior to construction, represented by the variable h.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
The mountain that contains Mount Rushmore is approximately 5,675 feet high.
The height of the mountain is 622.5 feet less than 1.1 times its height before construction began.
1.1h – 622.5 = 5,675 is the equation to find the height of the mountain prior to construction, represented by the variable h
1.1h – 622.5 = 5,675
We need to find the value of h
Add 622.5 on both the sides
1.1h=5675+622.5
1.1h=6297.5
Divide both sides by 1.1
h=6297.5/1.1
h=5725
Hence 5725 is the height of the mountain prior to construction, represented by the variable h.
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PLEASE HELPPP I NEED TO TURN IT IN BY TODAY
George sold his mobile phone for Rs 7200, making a profit of 80 %.
Calculate the price at which he bought the mobile phone.
Answer:
Rs. 4000
Step-by-step explanation:
Profit = 80% = 180% of original price
Therefore, [tex]\frac{180}{100}x=7200\\ 180x=720000\\x=4000[/tex]
Answer:
9000
Step-by-step explanation:
80 percent *9000 =
(80:100)*9000 =
(80*9000):100 =
720000:100 = 7200
HELP PLS Two step equations that equal 11
Answer:
See below
Step-by-step explanation:
I hope this is what you're looking for!
Some examples include:
4x + 5 = 492x - 3 = 197x + 24 = 101graph the linear function h(x) = -3/2x + 4
Answer:
That is a line. Here's two points that pass through the line:
(0, 4) y-intercept(2, 1) [tex]\frac{-3}{2} (2)+4=1[/tex]Literally just graph a line that passes through those two points.
The state sales tax rate in North Carolina is 4.5% estimate the state sales tax on a model of the wright brothers’ airplane that costs $139.99.
Please show work
Answer:
$6.30
Step-by-step explanation:
The state sales tax rate in North Carolina is 4.5% estimate the state sales tax on a model of the wright brothers’ airplane that costs $139.99.
You are asked to estimate meaning $139.99 should be rounded to $140. Because 4.5% = 0.045
sales tax (estimated):
0.045 * $140 = $6.30
CHECK:
Exact amount is:
0.045 * 139.99 = $6.29955
For a project in his Geometry class, Jacob uses a mirror on the ground to measure the
height of his school building. He walks a distance of 8.75 meters from the building,
then places a mirror flat on the ground, marked with an X at the center. He then
walks 3.5 more meters past the mirror, so that when he turns around and looks down
at the mirror, he can see the top of the school clearly marked in the X. His partner
measures the distance from his eyes to the ground to be 1.75 meters. How tall is the
school? Round your answer to the nearest hundredth of a meter.
The height of the school is 8.5 m.
For a project in his Geometry class, Jacob uses a mirror on the ground to measure the height of his school building.
To find out how tall is the school:
An image is always formed at the back of a mirror. Thus, the appropriate option is -8.75 m. The flagpole is 8.75 m tall.
Let the angle of depression from Madelyn's point of view be represented by θ. Then applying the required trigonometric function, we have;
Tan θ = [tex]\frac{opposite}{adjacent}[/tex]
= [tex]\frac{1.65}{1.7}[/tex]
Tan θ = 0.9706
θ = [tex]Tan^{-1} 0.9706[/tex]
= [tex]44.2^{o}[/tex]
θ = [tex]44.2^{o}[/tex]
Let the height of the flag be represented by h. And for a given mirror, the angle of incidence is equal to that of reflection. Then;
Tan θ = [tex]\frac{opposite}{adjacent}[/tex]
= [tex]\frac{h}{8.75}[/tex]
0.9706 = [tex]\frac{h}{8.75}[/tex]
h = 0.9706 x 8.75
= 8.49275
h = 8.5 m
Since the image is formed at the back of the mirror, then the flagpole is 8.5 m.
Hence the answer is the height of the school is 8.5 m.
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Pls help me!!!!!!!!!!!!!!!!
Answer:
240?
Step-by-step explanation:
p(x)=-9x^9+6x^6-3x^3+1
The correct option regarding the end behavior of p(x)=-9x^9+6x^6-3x^3+1 is given as follows:
B. As x -> -∞, f(x) -> ∞ and as x -> ∞, f(x) -> -∞.
How to obtain the end behavior of a polynomial?The end behavior of a polynomial function is obtained by the limits of the function as x approaches infinity, meaning that only the term with the highest exponent is considered.
These limits are divided into two tails, as follows:
Left tail: x goes to negative infinity.Right tail: x goes to positive infinity.The function for this problem is defined as follows:
p(x)=-9x^9+6x^6-3x^3+1.
Hence the term with the highest exponent is:
-9x^9.
At the left tail of the graph, the end behavior is given as follows:
lim x -> -∞ f(x) =lim x -> -∞ -9x^9 = -9(-∞)^9 = -9 x (-∞) = ∞.
At the right tail of the graph, the end behavior is given as follows:
lim x -> ∞ f(x) =lim x -> ∞ -9x^9 = -9(∞)^9 = -9 x (∞) = -∞.
Hence option B is correct.
Missing InformationThe problem is given by the image shown at the end of the answer.
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If the system has infinitely many solutions, how are the values A, B, C, P, Q, and R related? Choose the correct answer below. Assume k is a non-zero constant.
If the system of equations, A·x + B·y = C and P·x + Q·y = R has infinitely many solutions, then the relationship between the values, A, B, C, P, Q, and R is; A/P = B/Q = C/R
What are the type of solutions to a system of linear equations?A system of linear equations can have no solutions, only one solution or infinitely many solutions.
Part of the question that appear missing is presented as follows;
The system of equations in the question is;
A·x + B·y = C...(1) and P·x + Q·y = R...(2)If the system has infinitely many solutions, then the equations (1) and (2) represent the same equation, such that equation (1) can be obtained directly from equation (2) and vice versa
This indicates that equation (1) is a multiple of equation (2)
Let the common factor be c, we have;
A = c·P
B = c·Q
C = c·R
Which gives;
A/P = B/Q = C/R = c
The relationship between the coefficient is that; A/P = B/Q = C/R
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The area of the triangle formed by the x - and y -intercepts of the parabola y = 0.5(x − 3)(x + k ) is equal to 1.5 square units. Find all possible values of k
The possible values of k that forms a triangle with an area of 1.5 square units are 1 and 2/3
What is a triangle?A triangle is a three sided polygon.
The equation of the parabola is; y = 0.5•(x - 3)•(x + k)
The area of the triangle = 1.5 square units
A x-intercept of the equation, y = 0.5•(x - 3)•(x + k) is x = 3.
The area of a triangle, A, is found from the equation
A = 0.5 × Base length × Height
When x = 3, the height of the triangle is therefore;
A = 1.5 = 0.5 × 3 × Height
Height = 1.5 ÷ (0.5 × 3) = 1
Similarly, when the height is 3, the base length is 1
The y-intercept has a value of y = 0.5•(0 - 3)•(0 + k) = -1.5•k
Area of triangle = 0.5 × 1.5•k × k = 1.5
k = 1
When the x-intercept is 3, we have;
0.5 × 1.5•k × 3 = 1.5
k = 1/(1.5) = 2/3
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Please help!!! What are the range and the domain of C?
Answer:
the C(X) pattern is +4? i need more context but i can give u that much
Step-by-step explanation:
Solve the following inequality and graph the solution set. |x+2|+1>6
The inequality can be simplified to:
-7 < x < 3
And the graph can be seen in the image at the end.
How to solve the inequality?Here we have the inequality:
|x + 2| + 1 > 6
To solve this, we need to isolate the variable x, so if we first subtract 1 we get:
|x + 2| +1 - 1 > 6 - 1
|x + 2| > 5
The absolute value part can be decomposed into two.
-5 < x + 2 < 5
Now we can subtract 2 in all the inequality, so we get:
-5 - 2 < x + 2 - 2 < 5 - 2
-7 < x < 3
The graph of this can be seen below
a random number generator produces a sequence of 12 digits (0, 1, ..., 9). what is the probability that the sequence contains at least one 3? (hint: consider the probability that it contains no 3's. round your answer to four decimal places.)
The probability that the number generated contains the digit 3 at least once is 0.7458.
Probability that there is digit 3 at least once = 1- P(no 3s in the number)
Total probability is, 10^13.
Here the digits are 0 to 9. we have 10 choices and the digits can be repeated hence the total probability is 10^13.
Now, if there is no 3, the choices will 9, hence the probability is 9^13.
Further, the probability of an event happening, is equal to the
favourable outcomes/total outcomes.
Hence, we get the probability of no 3's is 9^13/10^13
=0.2542
Probability that there is digit 3 at least once = 1- 0.2542
=0.7458
Therefore, the probability of at least one 3 is 0.7458.
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If -9x+8y=3and6x-6y=-3are true equations, what would be the value of -15x+14y?
The value of the expression -15x+14y as calculated from the given equations is 12.
The pair of simultaneous equations are given as
-9x+8y=3............................1
6x-6y=-3
Now we will solve these equation by elimination method.
6x-6y=-3
or, 2x-2y=-3.......................2
Now multiplying equation 2 by 4 and adding to equation 1 we get:
-9x+8y=3
8x - 8y = -12
or, -x = -9
or, x = 9
Now we use this value of x to find the value of y
-9x + 8y = 3
or , -81 -3 = -8y
or, y = 10.5
Hence the value of the expression -15x+14y is
=-15(9) + (14)(10.5)
=12
The theory of linear systems serves as the foundation for the field of linear algebra, which is used in most branches of modern mathematics. Computing techniques for obtaining the solutions, which are essential to the disciplines of engineering, physics, chemistry, computer science, and economics are included in numerical linear algebra.
It is useful to approximate a system of nonlinear equations by a linear system when developing a mathematical model or computer simulation of a relatively complex system.
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Which expression has a greater value: log3 1/3 or logb 1/b? Explain how you know.
Answer:
They are equalStep-by-step explanation:
Given[tex]log_3 1/3 \ and\ log_b 1/b[/tex]Compare the expressions[tex]log_31/3=log_33^{-1}=-1[/tex][tex]log_b1/b=log_bb^{-1}=-1[/tex]As we see the two expressions are equal in value
Answer:
log3 1/3 = logb 1/b
(Both expressions are equal)
Step-by-step explanation:
Now we have to,
→ find the expression with greater value.
Then the greatest value is,
→ log3 1/3 = logb 1/b
→ log3 3^(-1) = logb b^(-1)
→ -1 = -1
→ [ LHS = RHS ]
Hence, both have same value.
Elena said the equation 8x + 16 = 2x + 16 has no solutions because 8x is greater than 2x. Do you agree with Elena? Explain your reasoning.
Answer:
No
Step-by-step explanation:
listen to guy above he opened my eyes
QUESTION 5/10 HELP ASAPP
Answer:
d) {(-2,0), (-1,0), (1,0), (2,0)}
Step-by-step explanation:
We know that,
→ A set function has different x values.
Then the set function will be,
a) {(1,0), (1,1), (2,2), (2,2)}
→ The x values underlined are repeated.
Hence, it is not a set function.
b) {(0,0), (1,1), (1,1), (3,3)}
→ The x values underlined are repeated.
Hence, it is not a set function.
c) {(0,-2), (0,-1), (0,1), (0,2)}
→ The x values underlined are repeated.
Hence, it is not a set function.
d) {(-2,0), (-1,0), (1,0), (2,0)}
→ There are no repeated values for x.
Hence, it is a set function.
The area of a rectangle is (x4 + 4x3 + 3x2 – 4x – 4), and the length of the rectangle is (x3 + 5x2 + 8x + 4). If area = length × width, what is the width of the rectangle? x + 1 x – 9 x + 4 x – 1.
If the Area= Length × Width
Then, The width of the rectangle is (x -1).
We know that area of rectangle is the number of unit square within the boundary of the rectangle.
The formula of area of rectangle is:
Area = Length × width
⇒ Width = Length / Area
Given that,
(x⁴ +4x³ + 3x² -4x -4) / (x³ + 5x² + 8x + 4 ) = Width ----------------- (1)
Let's simply the expression :
Note that: x=1 is a zero of the numerator since the sum of the coefficient is zero.
So, (x-1) is a factor:
Putting the values in equation (1)
(x⁴ +4x³ + 3x² -4x -4) = (x-1) (x³ + 5x² + 8x + 4 )
(x⁴ +4x³ + 3x² -4x -4) / (x³ + 5x² + 8x + 4 ) = (x-1)
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Answer:
D on Edge 23
Step-by-step explanation:
because i said so
on 5 day of every week ,Jackie run 2 1/2 mile in the morning.How many total mile doe Jackie run every week
Answer:12 1/2
Step-by-step explanation:
From midnight to 6:00 am, the temperature rose 0.65°C each hour. If the temperature at 6:00 am was -0.1°C, what was the temperature at midnight? Please answer fast
The The temperature at midnight is -5.6°C.
What is the short definition of temperature?
Temperature is a unit of measurement that can be expressed on a variety of scales, including Fahrenheit and Celsius. Temperature shows the direction of the spontaneous flow of heat energy, i.e., from a hotter body (one with a higher temperature) to a colder body.It should be noted that there are 8 hours between midnight and 6 am.
Therefore, the equation will be:
x + (0.65 × 8) = -0.1
x + 5.5 = - 0.1
x = -0.1 - 5.5
x = - 5.6
The temperature at midnight is -5.6°C.
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Simplify
2√50+ 3√72-√32
Answer:
24√2
Step-by-step explanation:
[tex]2 \sqrt{50} + 3 \sqrt{72} - \sqrt{32} [/tex]
[tex]2 \sqrt{25 \times 2} + 3 \sqrt{36 \times 2} - \sqrt{16 \times 2} [/tex]
[tex]2 \sqrt{25} \sqrt{2} + 3 \sqrt{36} \sqrt{2} - \sqrt{16} \sqrt{2} [/tex]
[tex]2(5 \sqrt{2} ) + 3(6 \sqrt{2} ) - 4 \sqrt{2} [/tex]
[tex]10 \sqrt{2} + 1 8\sqrt{2} - 4 \sqrt{2} [/tex]
[tex]24 \sqrt{2} [/tex]
Can you help with the last question, please? Ignore the writing on the paper.
Graph an inequality to represent the possible number of people in the room if the room holds a maximum of 12 people.
Answer: x≤12
Step-by-step explanation: the room holds a max of 12 people, so the number of people will be less than or equal to 12
x-3y=16 4x-y=9 substitution
Using the substitution method, the solution is: x = 31, y = -5.
How to Use the Substitution Method to Solve a System of Equations?To solve a system of equations by substitution, rewrite one of the equations in terms of one of the variables, then substitute its value into the other equation and solve.
Given the system:
x - 3y = 16 --> eqn. 1
4x - y = 9 ---> eqn. 2
Rewrite equation 1:
x = 16 + 3y
Substitute the value of x into eqn. 2:
4(16 + 3y) - y = 9
64 + 12y - y = 9
64 + 11y = 9
11y = 9 - 64
11y = -55
y = -5
Substitute the value of y into eqn. 1:
x - 3(-5) = 16
x + 15 = 16
x = 16 - 15
x = 1
The solution is: x = 1, y = -5
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help much needed!!!! will mark brainliest
Find the missing value so that the line passing through the 2 points has the given slope.
(-7, -3) and (-1, y); slope: 1
a. -3
b. 3
c. 6
Answer: b
Step-by-step explanation:
It's a line, so the formula will be y = mx + b.
Slope(m) = 1Y-intercept(b)=[tex]-3=1(-7)+b\\7-3=b\\b=4[/tex]
So, the function would be y = x + 4. Plug the values of the coordinate in to find the missing value:
[tex]y=x+4=-1+4=3[/tex]