Answer:
[A] y(y + 4) - y = 6
[C] 4 b (b)=0
Step-by-step explanation:
First let know what is a quadratic functions(s):
A function is called Quadratic if it consist of only one variable, maximum of three terms, and highest degree of the variable in that Polynomial is 2.
Now let's go through the answer choices:
[A]
y *(y+4) - y =6
y² + 4 y - y -6=0
y²+3 y -6=0
Thus, This is Quadratic Function.
[B]
3 x +2 + 6 x -1=0
9 x-1=0
Thus, This is not Quadratic Function
[C]
4 b*(b)=0
4 b²=0
Thus, This is Quadratic Function.
[D]
3 a- 7 =2 * (7 a-3)
3 a - 7=14 a - 6
3 a - 14 a = 7 -6
-11 a =1
Thus, This is not a Quadratic Function.
Hence, [A] and [C] are quadratic functions.
[RevyBreeze]
Find C round to the nearest tenth.
[tex]\textit{Law of Cosines}\\\\ \cfrac{a^2+b^2-c^2}{2ab}=cos(C)\implies cos^{-1}\left(\cfrac{a^2+b^2-c^2}{2ab}\right)=\measuredangle C \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ cos^{-1}\left(\cfrac{90^2+55^2-50^2}{2(90)(55)}\right)=\measuredangle C\implies cos^{-1}\left( \cfrac{8625}{9900} \right)=\measuredangle C \\\\\\ cos^{-1}\left( \cfrac{115}{132} \right)=\measuredangle C\implies 29.4^o\approx \measuredangle C[/tex]
Answer:
C=29.4°
Step-by-step explanation:
[tex]c=50\:ft\\\\a=90\:ft\\\\b=55\:ft[/tex]
Using law of Cosines
[tex]C=cos^{-1}\left(\cfrac{a^2+b^2-c^2}{2ab}\right)\\\\C=cos^{-1}\left(\cfrac{90^2+55^2-50^2}{2*90*55\right)}\\\\C=29.4^{o}[/tex]
~
a 12. A bicycle wheel has a radius of 40 cm. How many times does it revolve during a journey of 10 km? Give your answer to the nearest 100. [For T, use either your calculator value or 3.142.
The bicycle wheel revolving is a illustration of circumference
The bicycle wheel revolves 4000 times
How to determine the number of times?The given parameters are:
Radius (r) = 40 cm
Distance =10 km
Start by calculating the circumference of the wheel
[tex]C =2\pi r[/tex]
This gives
[tex]C =2 * 3.142 * 40[/tex]
[tex]C =251.36[/tex]
The number of times to cover a distance of 10 km is then calculated as:
[tex]n =\frac{10km}{251.36cm}[/tex]
Evaluate the quotient
[tex]n =3978.35773[/tex]
Approximate
[tex]n =4000[/tex]
Hence, the bicycle wheel revolves 4000 times
Read more about circumference at:
https://brainly.com/question/15673093
p and q are two numbers such that p > q
When you subtract 5 from p and subtract 5 from q the answers
are in the ratio 9: 1
When you add 20 to p and add 20 to q the answers
are in the ratio 7:3
Find the ratio p:9
Give your answer in its simplest form.
The ratio p:9 is equal to 50:9 = [tex]\frac{50}{9}[/tex].
System of Linear EquationsSystem of linear equations is the given term math for two or more equations with the same variables. The solution of these equations represents the point at which the lines intersect.
For solving this equation, firstly, rewrite the information given:
[tex]\frac{p-5}{q-5}=\frac{9}{1} \;(1)\\ \\\frac{p+20}{q+20}=\frac{7}{3} \;(2)[/tex]
From equation 1, you have:
[tex]p-5=9q-45\\ \\ p=9q-40[/tex]
And from equation 2, you have:
[tex]3*(p+20)=7*(q+20)\\ \\ 3p+60=7q+140\\ \\[/tex]
Now, substitute p=9q-40 in 3p+60=7q+140
[tex]3p+60=7q+140\\ \\3*(9q-40)=7q+140\\ \\ 27q-120=7q+140\\ \\ 20q=20\\ \\ q=10[/tex]
If q=10 for p=9q-40, you will have:
[tex]p=9q-40\\ \\ p=9*10-40\\ \\ p=90-40\\ \\ p=50[/tex]
Therefore, the ratio [tex]\frac{p}{9}[/tex] is equal to [tex]\frac{50}{9}[/tex].
Learn more about the system of equations here:
https://brainly.com/question/384631
Which of the following correctly identifies the Identity Property of Multiplication?
8x2 =2x8
10x (6x7
20x1=20
Answer:
20x1=20
Step-by-step explanation:
The product of 1 and any number is the number.
Answer:
20x1=20
Step-by-step explanation:
the identity property says whatever the number gets multiplied by 1 would've that number . hope this helpssss . brainliest ?
Find the measure of angle A.
9)
A
3x + 6
75°
4x+6
Check the picture below.
Select a box to identify whether each equation has no solution, one solution, or infinitely many solutions.
No Solution
One Solution
Infinitely Many Solutions
- 2x + 3 = - 3x + 2
- 2x + 3= - 2x + 3
OO
- 2x + 3 = 2x + 3
Answer:
First Equation: One Solution
Second Equation: Infinite Solutions
Third Equation: One Solution
Step-by-step explanation:
Let's solve these equations step by step.
[tex]-2x+3=-3x+2\\[/tex]
Subtract 2 and add 2x
[tex]1=-x\\x=-1[/tex]
The only solution here is -1.
[tex]-2x+3=-2x+3[/tex]
Anytime the equations are the same on both sides, we have infinite solutions.
Add 2x
[tex]3=3[/tex]
Any value of x will satisfy this equation.
[tex]-2x+3=2x+3[/tex]
Add 2x and subtract 3
[tex]4x=0\\x=0[/tex]
The only solution here is 0.
#LearnWithBrainly
Answer the problem 1010+3839
Answer:
4,849
Step-by-step explanation:
1010+3839=4849
Answer:
4,849
Step-by-step explanation:
Brainliest please
The angle of depression from a stationary object to a point on
the ground is the same as the angle of elevation from that
point to the object.
T or F
Answer: T
Step-by-step explanation:
By the alternate interior angles theorem, the given statement is true.
Brainliest if correct
all you really need to do is find the common denominator and it'll get you an answer for the numerator.
Answer:
13/15
Step-by-step explanation:
You first need to find the common denominator between both 3 and 5, so you have to find the number that would be the best, which is 15. Then you have to multiply the numerator by how many times you went up for that number, for 2/3 would be times 5, and 1/5 would be times 3. Doing this will get you your answer, 13/15.
Find the area of this circle. Use 3 for a.
A = 7r2
Hint: The radius (r) is
1/2 of the diameter.
6 in
[?] in?
What can 6/9 be Simplified to
Answer:
2/3
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
6/9 can be simplified into 2/3 by dividing both the numerator and the denominator by the greatest common factor, 3.
solve this
59 + x = 24
Answer:
[tex]x=-35[/tex]
Step-by-step explanation:
Given the following question:
[tex]59+x=24[/tex]
To find the answer we are going to use inverse of operations to isolate the variable, doing this we can then find the value of the variable.
[tex]59+x=24[/tex]
[tex]59-59=0[/tex]
[tex]24-59=-35[/tex]
[tex]x=-35[/tex]
Your answer is "x = -35."
Hope this helps.
help please quick. it's 9.1.3 geometric sequences
what is 5 x 28 / 10 + 100 - 2
Answer:
The answer is 112
Step-by-step explanation:
((58 x 28) / 10) + 100 - 2
Find the equation of the line which passes through (-2,1) and which is perpendicular
to the line 2x - 4y = -8. State the answer in slope-intercept form and graph.
-
A line that is perpendicular to a line with slope m has slope -1/m which is the opposite reciprocal of the original slope.
In this case the original line in standard form is
2x-4y=-8
transform this into slop intercept form
-4y=-2x-8
4y=2x+8
y=(1/2)x+2
The slope of this original line is 1/2 therefore the perpendicular line will have slope -2
y'=2x'+b
then substitute in the order pair (x',y')
1=2(-2)+b
b=5
Therefore equation of line is
y=2x+5
The graph is just following this equation!
If you have any questions about my explanation please ask I will answer them to the best of my ability.
Zachary can spend at most $100 on new clothes. Write an inequality that represents this situation
Answer:
x [tex]\leq[/tex] 100
Step-by-step explanation:
less than or equal to= at most
1. Devon is young and has just graduated college with her associate's degree. She plans to start saving money for retirement as soon as she starts her new job. By taking 10% of her monthly gross income, Devon is able to contribute (a) $ $587 each month to a retirement plan. The account is expected to earn interest with an APR of 5.25% compounded monthly. Round answers to two decimal places. How much money will be in Devon's retirement account if she continues to make the same monthly investment for 40 years
Using the future value formula, it is found that $546,148,903,191,724.25 will be in Devon's account.
What is the future value formula?It is given by:
[tex]V(n) = P\left[\frac{(1 + r)^{n-1}}{r}\right][/tex]
In which:
P is the payment.n is the number of payments.r is the interest rate.In this problem, the parameters are as follows: P = 587, r = 0.0525, n = 40 x 12 = 480.
Hence:
[tex]V(n) = P\left[\frac{(1 + r)^{n-1}}{r}\right][/tex]
[tex]V(480) = 587\left[\frac{(1 + 0.0525)^{480-1}}{0.0525}\right][/tex]
[tex]V(480) = 546,148,903,191,724.25[/tex]
$546,148,903,191,724.25 will be in Devon's account.
More can be learned about the future value formula at https://brainly.com/question/5025949
3/5 is 40% of what number?
Answer:
emm 3/5 is 60% and 2/5 Is 40% .....
Evaluate 8-2.
A. -16
B. -64
C. -1/64
D. 1/64
I'm assuming you meant to write 8^(-2) or [tex]8^{-2}[/tex] where the -2 is the exponent over the 8.
If my assumption is correct, then we use the rule [tex]a^{-b} = \frac{1}{a^b}[/tex]
So,
[tex]a^{-b} = \frac{1}{a^b}\\\\8^{-2} = \frac{1}{8^2}\\\\8^{-2} = \frac{1}{64}[/tex]
Answer: Choice D. 1/64What property is named in the statement 3 (-1 x p) = 3 x (- p)?
Answer:
jaca
Step-by-step explanation:
Use the equation x = kyz to solve If x varies jointly with y and z, find x when: y = 18, z = 20 and the constant of joint variation is k - 3
Answer:
-1080.
Step-by-step explanation:
I take it that k = -3, if so:-
x = -3yz
= (-3)*18*20
= -1080.
Andrea had twice as many bracelets as her mother. If her mom had b bracelets, how many bracelets did Andrea have?
A. 2 + b
B. 2b
C. b - 2
D. b + 2
Answer:
your answer is Option B.2b
100 POINTS AND BRAINLIEST!!
Which of the following best describes a function? Select all that apply.
the graphed line overlaps itself
every input has exactly one output
the graph of the relation passes the vertical line test
the graph of the relation is a straight line
Answer:
Every input has exactly one output
Step-by-step explanation:
The easiest definition of function is
If R is relation between (x,y) then
f(x)=yIt simply means that every domain has an unique range
The notebook shows the money Reina eamed and spent in the month of April
A positive number represents money eamed. A negative number represents
money spent. Reina wants to find her profit for April
Answer: 7 dollars
Step-by-step explanation:
You can use a math calculator do 13 + -6
diep buys a load of bread 65 centimeters long. for lunch every afternoon, he cuts 15 centimeters of bread for his sandwich. diep wants to determine the length of the load of bread, i after d days. what is the equation of the scenario? is the graph of the equation continuous or discrete?
Answer:
Continuous
Step-by-step explanation:
Its continous because after each day you take the same amount away and due to that it will be continous.
Please help I don’t understand and there’s three parts to this question!!
Answer:
-The unknowns of this situation is how much they sold it for.
-Mr.Bust: 32*x=168
-Mr. Sulivian:48*h=156 *=multiply
-Mr.Bust sold it for more money
-he sold for 12
Please answer this question as fast ask you can.
Answer:
D
Step-by-step explanation:
calculated the equation and the expanded form
Can someone help me out this is hard
Answer:
a function needs inputs and outputs so just fill in anything that doesn't directly cooralate to itself
Step-by-step explanation:
Answer:
x y
1 1
1 2
2 2
3 2
Step-by-step explanation:
whats 965 divided by 53 - 42 + 79
Answer:
10.7222222
Step-by-step explanation:
965 / 53 - 42 + 79
965 / 11 + 79
965 / 90
= 10.7222222
(x+y) (a+b)-(y+z) (a+b)
Answer:
[tex](x + y)(a + b) - (y + z)(a + b) \\xa + xb + ya + yb - (ya + yb + za + zb \\ \\ = xa + xb + ya + yb - ya - yb - za - zb \\ = xa + xb - za - zb \\ = a(x - z) + b(x - z) \\ = (x - z)(a + b)[/tex]