help pls! (it's a pic)
Answer: Choice C
x+y = 28
3x+4y = 100
===================================================
Explanation:
x and y are placeholders for nonnegative whole numbers.
Specifically,
x = number of three point questions
y = number of four point questions
Since we have 28 questions total, this must mean x+y = 28. That forms the first equation in our system of equations.
------------
Now let's form the second equation:
x = number of three point questions
3x = points we get from all the three point questions
y = number of four point questions
4y = points we get from all the four point questions
3x+4y = all points possible
3x+4y = 100 is the second equation
------------
So we have this system
[tex]\begin{cases}x+y = 28\\3x+4y = 100\end{cases}[/tex]
which fits the conditions in the instructions.
write the slope intercept form of the equation of each line
7th grade
HELP MEEEE!
due today
Answer:
A.
Step-by-step explanation: Because as you see the dot is past the 2 and is on the third line out of 4, the 4th line is the next number.
5th question
answer Plss
Answer:
no
Step-by-step explanation:
57 isnt a prime number
1
A percent of change is the ratio of the amount of change to the original amount.
Answer:
I believe this would be true
Step-by-step explanation:
Will give brinley crown thing! :)
Is x = 4 the correct solution to the equation 2x - 8 = 12 - 4x ? Explain your reasoning using a complete
sentence.
Answer:
x = 10/3
Step-by-step explanation:
Which system of equations is represented by the graph?
If you can guess my DOB all correct(Month day and year)i'll give you brainliest :)
Answer:
march 4th?
Step-by-step explanation:
April 29? That seems like a birthday you would have with your name.
A bike rental company rents beach bikes. They charge an initial fee plus $1 for each hour the bike is rented. Chad rented a bike for six hours and was charged $10. How much is the initial fee?-I need help with the first step and I NEED HELP ASP!!
Answer/Step-by-step explanation:
Since chad was charged 1 dollars for each hour for 6 hours, we can represent this as 1 x 6. Now subtract 6 dollars from the bill for the hours and it leaves the initial fee of $4 for rental.
Now check your work:
(1 x 6) + 4 = 10
solve the equation y-(-5)=x-0 for y
Answer:
y = x - 5
Step-by-step explanation:
[tex]y - ( - 5) = x - 0[/tex]
[tex]y + 5 = x[/tex]
[tex]y = x - 5[/tex]
Which statement is true about this quadratic equation? y=-2x^2+9x-12 A. There are two real solutions. B. There is one complex solution. C. There are two complex solutions. D. There is one real solution.
A quadratic equation is an equation that can be placed in the form a·x² + b·x + c = 0
The option that gives the true statement about the quadratic equation is option C.
C. There are two complex solutions
Reason:
The given quadratic equation can be presented as follows;
y = -2·x² + 9·x - 12
The factored form of the quadratic equation is presented as follows;
The radical of the given quadratic equation is therefore;
[tex]\sqrt{9^2 - 4 \times (-2) \times (-12)} = \sqrt{81 - 96} = \sqrt{-15}[/tex], which gives the following solutions;
[tex]x = \dfrac{(-9\pm\sqrt{-15} )}{2 \times (-2)} = \dfrac{-9 \pm \sqrt{-15} }{-4}[/tex]
[tex]x = \dfrac{-9 +\sqrt{-15} }{-4} \ or \ x = \dfrac{-9 -\sqrt{-15} }{-4}[/tex]
Therefore there are two complex solutions;
Learn more about quadratic equations here:
https://brainly.com/question/12402430
Answer:
the answer is c
Step-by-step explanation:
There are two complex solutions.
Please help. If this isn't done by today i'm grounded :(
A _____ magnet can be made by rubbing a permanent magnet the same way
along an item. The alignment of atoms does not last long.
permanent
temporary
atomic
polar
Answer:
B. temporary
Step-by-step explanation:
The last sentence says that the alignment of atoms does not last long.
Answer:
B. temporary
Step-by-step explanation:
Helppp I’ll mark you as brainlister you
Answer:
[tex]\triangle KLM \sim \triangle GFH[/tex]
Step-by-step explanation:
In similar triangles, the corresponding angles must be congruent. We see from the diagram that [tex]\angle K \cong \angle G[/tex], [tex]\angle L \cong \angle F[/tex], and [tex]\angle M \cong \angle H[/tex]. Therefore, [tex]\triangle KLM \sim \triangle GFH[/tex].
is (0,0) a solution to the equation y=3x
=========================================================
Explanation:
The point (0,0) means x = 0 and y = 0 pair up together.
Recall that any point is always of the form (x,y).
If we plug x = 0 and y = 0 into the equation, we end up with,
y = 3x
0 = 3*0
0 = 0
We get the same thing on both sides, so we have a true equation.
Since we have a true equation, we've shown that (0,0) is a solution.
Visually this indicates (0,0) is on the line y = 3x. Put another way, the line y = 3x goes through the origin.
If f (x)=3^5-x + 6, what is the value of f (5), to the nearest tenth?
Answer:
240
Step-by-step explanation:
3^5 - 5 + 6
243 - 5 = 238+6= 244
240?
Which expression is equivalent to 4(7 + 8)?
Answer:
28+32
Step-by-step explanation:
4(7+8)
= (4*7)+(4*8)
= 28+32
The radius of a circle is 4.53 in. What is the length of the circumference of the circle?
Answer:
28.4484
Step-by-step explanation:
Answer:
28.46
Step-by-step explanation:
Use this equation: 2 π r
What is the area of rectangle ABCD?
Answer:
8 squares
Step-by-step explanation:
i think 8 squres iscorrect answer
Answer:
8 square units
Step-by-step explanation:
count the number of squares the rectangle is taking
or length times width
2x4
Which one should I choose
Answer:
-32
Step-by-step explanation:
((−4)(4))(2)
=−32
Answer:
-32
Step-by-step explanation:
hope this helps you out
,,,,,,,,,,hey help pls
Answer:
B and D
Step-by-step explanation:
Now, I know that B is definitely a function. However, D does look correct, but I'm not 100% sure.
I hope this helps you out! Have a lovely day.
please help me with this question
Answer:
First question is 109
Second question is 45, but I guess it's a typo with 145.
Pls help me asap!!!!
Answer:b
Step-by-step explanation:y=2x-3
Write a linear equation in slope intercept form of a line with a slope of 12 and the point (0, 10).
y = 12x - 10
y = 12x + 10
y = 10x + 12
x = 10y - 12
look at the picture 10 points
please do not answer if u do not know the answer
Step-by-step explanation:
well what is the question??
SCHOOL PROJECT Green Valley Middle School is
selling wrapping paper. For each roll of wrapping paper
sold the school receives 45 cents. How many rolls of
wrapping paper must be sold to reach their goal of at
least $81?
Answer:
180 rolls.
Step-by-step explanation:
0.45x = 81
x = 81/0.45
x = 180
What is the slope of a line passing through (4, 3) and (3,1) ?
Answer:
[tex]m=2[/tex]
Step-by-step explanation:
The sum of positive integers b and h is 34. If their difference is 8, what is the value of bh?
A. 25
B.56
C. 75
D. 273
Answer:
D. 273
Step-by-step explanation:
b+h=34
difference is 8
2b=42
b=21
34-21=13
h=13
13*21=273
answer is D
Brian has $100 in his pocket. As he is walking home 1/4th of the money falls out of his wallet. Of the remaining money, he uses $15 to buy girl scout cookies. Lastly, of the remaining money he loses 1/3rd. How much money does he have left by the time he makes it home?
Answer:
$40
Step-by-step explanation:
Brian starts at $100, then loses 1/4th of the money,
100/4 = 25,
then you subtract 25 from 100, which gives you 75
With the remaining $75, he spends $15 on girl scout cookies,
75 - 15 = 60
He then has $60 remaining, but while walking home, loses 1/3 of the total amount.
60/3 = 20,
you then subtract 20 from 60, which gives you 40
Therefore, $40 is what is remaining.
The price of an item has been reduced by 10%. The original price was $46. Find the price of the item now.
41.4
Step-by-step explanation:
Hope this helps ∞<3
let me know if its right or wrong
Simplify each pair of solutions as much as possible. Identify each pair of numbers as RATIONAL, IRRATIONAL, or COMPLEX/IMAGINARY.
Answer:
irrational duh
Step-by-step explanation:
