Answer:
Here is a more clearer version of the same question ;
29 1.2. Constructing Direct Proofs 1. Let a, b, and c be real numbers with a 0. The solutions of the quadratic equation ax 2 + bx + c = 0 are given by the quadratic formula, which states that the solutions are xi and x2. where and x2 2a 2a (a) Prove that the sum of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to -b/a . (b) Prove that the product of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to c/a.
The proving of both a) and b) has been done
Step-by-step explanation:
The step by step explanation has been given in the attachment below.
Step-by-step explanation:
If x=3 y=-5 and z=-2 what is 90xyz ➗xy? PEMDAS PLEASE HELP! :(
Step-by-step explanation:
90×3×-5×-2/3×-5
2700/-15
-180
NEED HELP QUICK HURRY
Answer:
Domain: -5 ≤ x < 1
Range: -4 ≤ x < 7
Step-by-step explanation:
Domain is the set of x-values that can be inputted into function f(x).
Range is the set of y-values that are outputted by function f(x).
We see from the graph that our x-values span from -5 to 1. Since -5 is closed dot, it is included in the domain, but since 1 is open dot, it is not included in the domain:
[-5, 1) or -5 ≤ x < 1
We see from the graph that our y-values span from -4 to 7. Since -4 is closed dot, it is included in the range, but since 7 is open dot, it is not included in the range:
[-4, 7) or -4 ≤ x < 7
According to the rules of significant figures, what is the correct answer to 3.41 + 5?
A.8.41
B.8.4
C.8
I need help with this question
Answer: 5x - 1 = -6
Step-by-Step Explanation:
We have this diagram here showing numbers and symbols. Just a remainder, "X" is a variable which can be found through and equation of Algebra. Alright, so we have 5 boxes with the symbol "X". Alright, that's a start, so we have 5x as a start of the equation. We have -1 on the same side as well.
Alright, so on the other side- we have Six symbols of "-1".
That concludes to... -6. Alright, notice how all of the symbols are on a Scale, so we can heavily imply that the "=" symbol will take place between the two sets of symbols. Alright, combining them we get.. 5x - 1 = -6.
If you need further instructions/help, don't hesitate to give me a shout out. Bye, and I hope this helps.
please help
thank youu
Answer:
5
Step-by-step explanation:
i think its y=5 because the bottom one equals 9
Answer:
A or y = 5
Step-by-step explanation:
So from the last explanation, we know that each row or column must be 9. The middle row and middle column must also be 9 so:
6 + y - 2 = 9, and 0 + y + 4 = 9
4 + y = 9, and 4 + y = 9
So we can conclude that:
Y must be 5
HELP!!!
This is a geometry question!
Please give reasoning with your answer!
I can and will mark a "real" answer brainliest!
Step-by-step explanation:
For angle BDG
The common angles are: Angle DBG, Angle DGB
The common sides are: DG, GB, BD
And for angle AEF
The common angles are: Angle EFA, Angle EAF
The common sides are: EF, FA, AE
FOR the BGD triangle, all sides are connected together, so, all of them are common and the angles as well
And the same exact thing with triangle AEF also
Hope it helps!
What integers are closest to the square root of 54 on the number line?
Answer:
The closets number to the Square root of 54 is √54
√54 = 7.348...
→ The closest WHOLE number to the square root of 54 is 7. The closets number to the Square root of 54 is √54
pls answer!! it's only one question
Answer:
96
Step-by-step explanation:
Because If you add all of the numbers together you will get 96.
Answer:
467 cm²
Step-by-step explanation:
First off, cut the shape so its in 3 rectangles so you can find the area. Then, however much you cut off of that side you'll subtract from the original length of that side. Then, you'll multiply the lengths of the sides together for all of them and then add.
Help please and thxxx
Answer:
e
Step-by-step explanation:
If Q is the midpoint of pr, find the coordinates of r if p(11,-2) and q(4,3) look
Min has dozen blueberry muffins and 1 dozen pumpkin muffins. How many more blueberry muffins than pumpkin muffins does Min have? Enter your answer as a fraction in simplest form by filling in the boxes,
Answer:
7/12
Step-by-step explanation
We have both of the values of the dozen of doughnuts 5/6 of a dozen blueberry and 1/4 dozen pumpkin. In order to determine how many more blueberry muffins Min has, we have to set the denominators to be the same number. To do this we need a common denominator. The least common denominator between 6 and 4 is 12. We multiply the top and bottom of the fraction 5/6 by 2 to get 10/12. We then multiply 1/4 by 3 to get 3/12. 10-3 = 7, therefore Min has 7/12 more blueberry muffins
Answer:
7/12
Step-by-step explanation:
because when you subtract you have to find the LCD or LCM and 12 is the common multiple next you have to find equivalent fractions to 5/6 and 1/4 and you get 5/6=10/12, 1/4=3/12. 10/12-3/12 is 7/12
Danny charges $30 for 3 hours of swimming lessons, Martin charges $44 for 4 hours of swimming lessons. Who offers a better deal?
Answer:
Danny
Step-by-step explanation:
danny has a better offer
Aaden wants to get a subscription to a library. there are two subscription options one of which charges a fixed 96 dollar annual fee and the other which charges 3 dollars per book he borrows.
what does point Q represent in this context?
Answer:
The data we have is:
Library A charges $96 per year.
Library B charges $3 per book he borrows.
Let's find the number of books X that he needs to borrow in order to spend the same amount in each library:
$3*X = $96
X = 96/3 = 32.
This means that if Aaden borrows 32 books per year, is the same for him if he chooses library A or B.
If he borrows more than 32 books per year, library A will be cheaper. (if he borrows 33 books, library B costs 33*$3 = $99, which is larger than the $96 of library A)
If he borrows less than 32 books per year, library B will be cheaper. (if he borrows 31 books library B costs $3*31 = $93, which is cheaper than the$96 of library A)
Step-by-step explanation:
Answer:
A number of books and their cost that is not possible with either subscription
Step-by-step explanation:
Point S is neither on line aaa nor line b, so it represents a number of books and a cost that is different from the combinations possible with either subscription.
* I give all of my credit to khan academy
What is b squared + 12 if b = 102?
I give brainliest if you right
Answer:
10416
Step-by-step explanation:
102 squared is 10404. 10404 + 12 = 10416
If the equation is an identity or if it has no solution, write identity or no solution.
7n + 5 − 9n = 8 − 2n − 3
Answer:
7n + 5 − 9n = 8 − 2n − 3 = true
-2 n + 5 = 5 - 2 n = true
Step-by-step explanation:
Left-hand side:
Simplify the following:
7 n - 9 n + 5
Grouping like terms, 7 n - 9 n + 5 = 5 + (7 n - 9 n):
5 + (7 n - 9 n)
7 n - 9 n = -2 n:
Answer: -2 n + 5
____________________________
Right-hand side:
Simplify the following:
-2 n - 3 + 8
Grouping like terms, -2 n - 3 + 8 = (8 - 3) - 2 n:
(8 - 3) - 2 n
8 - 3 = 5:
Answer: 5 - 2 n
FASTTTTTTTTT PLEASEEEEEEEEEEE
Wich of the following represents a true statement I Need Help asap well Mary you brain list
Answer:
B is trueStep-by-step explanation:
A. 4^5*4^5 = 4^(5+5) = 4^10 ≠ 4^15
FALSEB. (5^4)^5 = 5^(4*5) = 5^20
TRUEC. 3^1*3^0 = 3^(1+0) = 3^1 ≠ 3^0
FALSED. 6^20/6^10 = 6^(20 - 10) = 6^10 ≠ 6^2
FALSELook at the table. Make a conjecture about the sum of the first 25 positive even numbers.
A. The sum is 24x25
B. The sum is 25x25
C. The sum is 25x26
D. The sum is 24x24
Answer:
C, The sum is 25x26
Step-by-step explanation:
Hope this helps, God bless you and have a great day.
Catherine has 6 gallons of milk and uses 26/5 gallons to make cookies. What fraction of a gallon does she have left?
Answer:
4/5 gallons left
Step-by-step explanation:
make sure before subtracting that it has the same denominator.
Answer:2
Step-by-step explanation:
There are 256 Tsp in a gallon...so 1 Tsp = 1/256 gal. If one batch of cookies calls for 3 Tsp of milk, 5 batches will require 15 Tsp. So..... 15 / 256 ...
2 answers.
your welcome!!
Please someone answer. Identify the vocabulary word that matches the picture.
Answer:
alternate interior angles
Step-by-step explanation:
The angles are alternate interior angles
They are between the parallel lines and on opposite sides of the transversal
1. Two phone plans offer 500 free minutes per month. Plan A charges $29.99 per month with a charge of $0.45 for each additional minute. Plan B charges $34.99 per month with a charge of $0.40 for each additional minute. 1. Write an inequality to find the number of additional minutes, m, for which Plan A costs more than Plan B for any given month.
Step-by-step explanation:
Plan A costs 100 minutes more than Plan B for the given month.
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
Plan A is $29.99 per month plus $0.45 per minute further than the allotted time. Plan B costs $34.99 per month plus $0.40 for each additional minute.
According to the given question, we can write the inequality would be as:
⇒ 29.99 + 0.45m > 34.99 + 0.40m
⇒ 0.45m - 0.40m > 34.99 - 29.99
Apply the subtraction operation, and we get
⇒ 0.05m > 5
⇒ m > 5/0.05
Apply the division operation, and we get
⇒ m > 100 minutes
Therefore, Plan A costs 100 minutes more than Plan B for the given month.
Learn more about inequalities here :
brainly.com/question/20383699
#SPJ5
12 - (-19) =
A) -31
B) -7
C) 7
D) 31
The answer is:
D) 31
Hope this helped!
Let S = {1, 2, 3, 4, 5, 6, 7, 8, 9), A = { 1, 2, 3, 4, B= {2, 4, 6, 8} and
C= {3, 4, 5, 6). Find (i) A (ii) An C (iii) (An CY (iv) A UB (V) BIC
Answer:
yo i coy to ghost minder
De’shawn pays $.16 for 12 pounds of sugar.what is the price of the sugar?
Answer:
$.16 x12=$1.92
Step-by-step explanation:
$.16 cents a lb x12 lbs =$1.92
Are you sure the question is correct ? Your saying he paid .16 cents for 12 lbs of sugar. If so
its .16 divided by 12= 0.01
What is the slope and y-intercept of the linear equation y = 5x - 4?
m2 =
ь
Answer:
Where m is the slope and b is the y-intercept. So in this case m=5 and b=-4, or in other words the slope is 5 and the y-intercept is (0,-4) (since x=0 for all y-intercepts).
Answer:
The slope is 5 and the y-intercept is -4.
Step-by-step explanation:
The slope intercept formula is y=mx+b. 5 is the m and -4 is the b. Hope this helps!
Which expression has a value of 40?
240 ÷ 60
2,400 ÷ 6
2,400 ÷ 60
2,400 ÷ 600
Answer:
2,400 ÷ 60 = 40
Step-by-step explanation:
Answer:
2,400/60=40
Step-by-step explanation:
SOLVE 7-9 I WILL GIVE BRAINLIST
Answer:
7. Approximately 402.7 inches or 2pi times 64
8. 31.83 To solve this you know 2pi r is an equation for the radius. 2πr=200 and r=200/2π=100/π= 31.83.
9. The one with pi in the equation because 3.14 is only a piece of pi but the symbol represents the whole number which goes on forever.
Step-by-step explanation:
Which expression is equivalent to 14 x 14?
Answer:
14^2
Step-by-step explanation:
Answer: 14^2 , 14+14+14+14+14+14+14+14+14+14+14+14+14+14+
Step-by-step explanation:
During the month of December a bus company decides to only sell daily passes. They charge 3$ dollars per pass. Describe the domain and range of the scenario above
Using function concepts, it is found that:
The domain of the scenario is: {0, 1, 2, 3, 4,...}.
The range of the scenario is: {0, 3, 6, 9, 12,...}
The domain of a function is the set that contains all possible input values.
In this problem, it is the number of passes sold per day, thus, the domain of the function is: {0, 1, 2, 3, 4,...}.The range of a function is the set that contains all possible output values.
In this problem, it is the amount earned when x passes are sold, considering that each pass is sold for $3, the range of the function is: {0, 3, 6, 9, ...}A similar problem is given at https://brainly.com/question/24742551
A market buys mixed nuts at $12.25 per pound. They markdown the mixed nuts 12%. What is the price per pound for the mixed nuts with the discount?
Answer:
the answer is £1.47
Step-by-step explanation:
on a calculator time's your number by 0.12 and that's how you found your answer
Answer:
Step-by-step explanation:
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