Answer:
Discriminant is 6.
Step-by-step explanation:
9-2x+3=0
-2x+9+3=0
-2x+12=0
-2x+12-12=0-12
-2x=-12
-2x/-2 = -12/-2
x=6
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
Question
If the end behavior is decreasing to the left, what might be true about the function? Select all that apply.
If the end behavior is decreasing to the left, then the function or leading coefficient of the function will be negative and the degree of the function will be Odd.
What is a Leading Coefficient?Leading coefficients are the number numerals that are written in front of a variable that has the biggest exponent.
Similar to other coefficients that are regular, they can be:
positivenegative,real, imaginarywhole numbersfractions ordecimals.Learn more about Leading Coefficient at;
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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 ?
3/5 is 40% of what number?
Answer:
emm 3/5 is 60% and 2/5 Is 40% .....
Help with this question
Answer:
The amount of money in the savings account goes up by $1500 each month
Step-by-step explanation:
The blue line crosses around halfway mark of the box, so a rough estimate would be $1500 per month.
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:
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
Drag a statement or reason to each box to complete this proof. If 3x−4=14, then x=6.
Answer:
Step-by-step explanation:
3x-4=14 x=6
3x=18
x=18
x=6
The length of a football field is 120 yards. How long is the football field in feet?
Answer:
3 feet per yard
120 feet
________ = 40 yards
3 feet(which makes up one yard)
Answer:
The football field is 360 feet.
Step-by-step explanation:
Convertion: 1 yard = 3 feet
120 × 3
= 360 Feet
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]
~
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.
what is 676.437 rounded to the nearest one
help
Answer:
676 because the .4 is less than .5, which makes it 676
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
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.
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.
how many triangles can be formed by joining the vertices of an octagon?need answer and solution pls
Answer:
6 triangles
Solution: In a regular octagon, by joining one vertex to the remaining non-adjacent vertices, 6 triangles can be formed.Step-by-step explanation:
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
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
What has to be broken before you can use it?
’m tall when I’m young, and I’m short when I’m old. What am I?
1. An egg
2. A candle
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?
I'm stumped on the answer to this one can anyone help me?
Answer:
it would d the last one
Step-by-step explanation:
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
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. 1/64solve 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.
Miss barn and three of her neighbors purchased a snowblower to share if the snowblower cost $439.20 how much estimate each person will pay
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
What is the surface area of this right triangular prism? Enter your answer in the box. in² Right triangular prism. The height of the prism is labeled 15 in. The base of the prism is a triangle with sides labeled 17 in., 17 in., ad 30 in. There is a dashed line from the vertex of the triangle perpendicular to the 30 in. side that is labeled 8 in.
Answer: 1200 in.
Step-by-step explanation: your welcome
Answer: 1200 in² other person was right
Step-by-step explanation: with proof
Answer the problem 1010+3839
Answer:
4,849
Step-by-step explanation:
1010+3839=4849
Answer:
4,849
Step-by-step explanation:
Brainliest please
Which of the following would be a good name for the function that takes the pages in a reading assignment and returns the time needed to complete it? A. Time(pages) B. Cost(time) C. Time(cost) D. Pages(time) E. Year(time) F. Time(year) SUBMIT < PREVIOUS
Answer:Time(pages) is the correct answer apex test.
Answer:
A. Time(Pages)
Step-by-step explanation: