Answer: They answer is A (-1,0)
Step-by-step explanation:
I plotted (-3,2) and (1,-2) and found they midpoint of it.
How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.
Answer: 90
Step-by-step explanation:
Quadratics by taking square roots (intro)
Answer:
Lesser: -6
Greater: 6
Step-by-step explanation:
h(x) = -5x^2 + 180
-5(x^2 - 36)
-5(x+6)(x-6)
x = -6, 6
the sum of eight times a number and fifteen is seven. find the number.
Find the time based on the information given.
The time is ___ hours.
Time = Rate ÷ Distance
= 140.9649 mph ÷ 500 miles
= 0.28 hours
A cookie recipe calls for 2 eggs and makes 3 dozen cookies. How many dozens of cookies could you make with a dozen eggs
Answer: 18 dozen cookies.
Step-by-step explanation: If 2 eggs make 3 dozen cookies and you have a dozen eggs divide 12/2 = 6. Then multiply 6*3 = 18.
Answer:
18 dozen cookies
Step-by-step explanation:
2 eggs makes 36 cookies
That means 2x=36
x=18
Now plug that into the equation.
12(18)=216
216 is how many cookies
take that number and divide by 12 (for a dozen)
What is the next term in the sequence 4, -12, 36?
a. -42 b. -54
Which term in the sequence -2, -5, -8, -
a. 9th term b. 10th term
What are the first three terms of the sequence whose general term is an = 2n+1?
a. 3, 5, 7 b. 4, 6, 8 c. 5, 6, 7 d. 6, 8, 10 Find the general term of the sequence -10, -20, -30, -
a.an =-10n b.an =10n c.an =n 10 d.an =10-n
An online seller sold 89 face shields on the first day, 76 face shields on the second day and 63 face shields on the third day and so on. If this pattern continues, how many face shields will be sold on an nth day?
a.an=102-13n b.an=102+13n c.an=100+13n d.an=100-13n
c. -72 d. -108 -32?
c. 11th term d. 12th term
6. In the given sequence 15, 19, 23, 27. What is the 12th term?
a. 63 b. 59 c. 51 d. 33
7. What is the common difference of the arithmetic sequence below?
a. 8 b.6 c. 5 d. 3
8. The value of a7 in an arithmetic sequence where a3 = -4 and a8 = 11 is
a. 2 b. 5 c. 8 d. 10
9. What operation is used in determining the common difference?
a. multiplication b. division c. addition d. subtraction
Which property justifies the statement below?
Answer:
It's associative property because they essentially mean the same thing, with the same signs and numbers and all, except the numbers are in different places.
Step-by-step explanation:
Hope this makes sense :)
Points cause i need help with math! so here u go and thanks everyone for the math help!!! here is my gratitude lol!
Answer:
the systems of equations corresponding to the given solutions, in order
Step-by-step explanation:
help!!! will give brainliest if correct !!!!!
Answer:
SENCOND TO LAST
Step-by-step explanation:
After watching Donald Duck in Mathmagic Land, please type out three things that you learned from the video. Did you like the video? Why or why not? Please answer all parts to the question
Answer:
Hope this helps
Step-by-step explanation:
Mathmagic Land had taught me more about math that I never knew before. I learned that everything can be involved with math. It all starts at the Pythagoreans which were the Greek. An example of how math is used today, is by playing billiards.
In billiards, you have to have a good technique of how your going to hit the ball, (good angles,) and you have to have a precise calculation of the angle your going to hit it at.I also learned when you cut shapes like a sphere, it just makes more and more shapes.
This is what I learned watching the Mathmagic Land Video.
Yes, Donald Duck in Mathmagic Land taught me alot of things I did not know before.
Which of the following rational number between 3/7 and 7/8 ?
13/56
19/56
27/56
53/56
Answer:
Step-by-step explanation:
There are two ways to do this. You could use your calculator to find out the decimal numbers that are equivalent to the two given fractions. Then check which one of the givens falls between these two numbers. I wouldn't do it that way -- not when you are told that the answer has 56 as the denominator. So ...
The best way to do it is to change the two givens so that they have a denominator of 56
3/7 = 3*8/7*8 = 24 / 56
7*7 / 7*8 = 49 / 46
So you need a number that is between 49 and 24
There is only one 27 / 56
Use compatible numbers to estimate the correct quotient.
7)697
——
A) 90
B) 100
C) 110
D) 120
hi! can someone pls help me w this? i appreciate it! :$
Answer: A
Step-by-step explanation: A
por que es la mas parecida
Determine the coordinates of A(2,3) after a reflection in the line y=2
Answer:
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection)
help me please WORTH 20 POINTS
Answer:
1
Step-by-step explanation:
What is the LCM? Please help asap!!
Answer:
d
Step-by-step explanation:
Answer:
C.) [tex]e^3r^3t^3[/tex]
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
Your normal work week is 30 hours. You make $10 an hour.Last week you worked 31 hours. What is your total paycheck.
Answer:
$310
Step-by-step explanation:
prove that 5^(2n - 1) is divisible by 8
Answer:
Step-by-step explanation:
Prove that 52n − 1 is divisible by 8 for all n ∈ N.
Solution
To prove by induction, we must
1. Show it is true for n = 1
2. Assume true for n and prove it is true for n + 1.
Let P(n) be the statement 52n − 1 is divisible by 8.
When n = 1, 52 − 1 = 24, which is divisible by 8.
This proves P(1).
Suppose that P(n) is true, i.e., 52n − 1 is divisible by 8.
Then 52(n+1) − 1 = 52
· 5
2n − 1 = 52
(52n − 1) + (52 − 1).
Note that 52n −1 is divisible by 8 using P(n) and also 52 −1 = 24 is divisible
by 8. Thus we have proved that P(n + 1) is true.
We conclude that P(n) is true for all n ∈ N.
A list of numbers is given below. If x is a number in this list, which inequality could represent x? {-5, -12, -2, -9}
Answer:
x<-1
Step-by-step explanation:
All of the numbers on/in the set are below -1. That means for that any of them to be x, the inequality would be x<-1.
Can someone please help me NO LINKS!!!
Answer:
14 is the correct answer
Answer:
14
Step-by-step explanation:
the answer is 14 when the equation is evaluated
Practicing quick shots, Roberto made three baskets in ten seconds. At
this rate, how many baskets could he make in one minute?
Answer:
18 baskets in a minute
Step-by-step explanation:
First, ten seconds is 1/6 of a full minute, so multiply the amount of baskets he made in ten seconds by 6 to get your answer:
3 x 6 = 18
3x9 is 27
9,18,27
if you need more support just ask me ;)
Answer:
genius confirmed?? O.o
Step-by-step explanation:
Manz is too goated on da stix
How to find the maximum or minimum value of a quadratic function?
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
A quadratic function is an algebraic function of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex], [tex]\forall \,x, y, a, b, c\,\in \mathbb{R}[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.[tex]y[/tex] - Dependent variable. [tex]a,\,b,\,c[/tex] - Coefficients.The maximum/minimum of a quadratic function is represented graphically by the vertex, which is the only point that has no a "twin" point by any means of symmetry. We can get the x-coordinate of the vertex by means of the quadratic formula:
[tex]a\cdot x^{2} + b\cdot x + (c- y) = 0[/tex] (2)
[tex]x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot (c-y)}}{2\cdot a}[/tex], where [tex]b^{2}-4\cdot a\cdot (c-y) = 0[/tex].
Hence, the x-coordinate of the vertex is:
[tex]x = -\frac{b}{2\cdot a}[/tex] (3)
And the y-coordinate of the vertex is determined by evaluating (1) at (3):
[tex]y = f\left(-\frac{b}{2\cdot a} \right)[/tex] (4)
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
We kindly invite to check this question on maxima and minima: https://brainly.com/question/12870574
A cricket bat is bought for $400. Later, it is sold with a loss of 15%. How much is the cricket bat sold for? =
After selling the cricket bat, how much money has been lost? Give your answer to two decimal places because it is a currency.=
Answer:
$340.00
Step-by-step explanation:
What I like to do first is find 10% of the number.
So 10% of 400 would be $40.
Then find half (5%) of the 10% ($40), which would be $20.
Add the $40 + $20 to get $60.
Then take $400 and subtract $60,
which gives you $340.00
3 -14x -x + 25 + 15 simplify
Answer:
−15+43
Step-by-step explanation:
1. Add the numbers
= 3−14x−x+25+15
= 43−14−
2. Combine like terms
= 43−14x−x
= 43−15
3. Rearrange terms
= 43−15x
= −15+43
Need HEELPPPP Did you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 5 chickens eat 8 apples. What is the ratio of the number of chickens to apples?
3:8
5:8
8:3
8:5
Answer:
It would be 5:8
Step-by-step explanation:
what is the slope of a line b perpendicular to line a with equation y=7x-9
Answer:
The slope of line b would be -1/7.
Step-by-step explanation:
This happens because if you have the slope of any line and are trying to find the perpendicular line to said line, the slope of the perpendicular line will always be the opposite reciprocal of the original slope.
Then, all you need to do is find some points and graph the lines.
HELP QUIC
What is the value of x?
Enter your answer in the box.
What is the slope of the line represented by the points in the table shown below?
x
-4
-1
5
9
y
17
8
-10
-22
m=⅓
m=-3
m=3
m=-⅓
Answer: Slope of the line formed by the data is -3.
m=-3 for y=mx+b.
Step-by-step explanation: The slope is the change in y (the rise) divided by the change in x (the run) between two points on the line. I'll pick 2 points: (-4,17) and (9,-22). Any two points will work, if it is a straight line. For these points, y, the rise, changes from 17 to -22, for a net change of (-22 - 17) = -39 for y. x, the run, goes from -4 to 9, for a change in x of (9 - (-4)) = 13.
The rise(y) over the run(x) for these points is thus (-39/13) = -3
The slope is -3
Examine the last statements made by the Dormouse:
(1) I breathe when I sleep.
(2) I sleep when I breathe.
Write each of the statements in "If .... then” form.
Answer:
I believe what your teacher is looking for is
"If I breathe when I sleep, then I sleep when I breathe."
"If I sleep when I breathe, then I breathe when I sleep."
Step-by-step explanation:
I hope I'm correct ^-^
The kite shown below is translated 8 units to the right and 1 unit up.
Which property will remain the same?
A.
the perimeter of the kite
B.
the coordinates of the x-intercept
C.
the coordinates of the vertices
D.
the angle between the top vertex and the origin
Answer:
fhbf
Step-by-step explanation:
frbhrfbjrbfr