Answers
Answer:
b²-4ac=0
Step-by-step explanation:
x=-b+0/2a
so,x=-b/2a
Related Questions
please i need help:/
Answers
Answer: 14 years
Step-by-step explanation:
Look at the graph and see where the line reaches $2500. Just by looking at the x-axis, you can rule out b and d since they deal with months not years
A coin contains 9 grams of nickel and 16 grams of Copper, for a total of 25 grams. What percentage of the metal is copper?
Answers
Answer:
The copper percentage = 64%
Step-by-step explanation:
Given
Nickle quantity = 9 grams of nickelCopper quantity = 16 grams of nickelTotal quantity = 25 gramsThe percentage of copper metal can be determined using the formula
Copper percentage = [Copper quantity / Total quantity] × 100
= [16 / 25] × 100
= 0.64 × 100
= 64%
Therefore, the copper percentage = 64%
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!
Cecilia records the weight change in her cat over 2 weeks. What number does she record as the total weight change for her cat?
LOOK AT THE ATTACHED PICTURE
Answers
Answer:
The total change is [tex]\frac{1}{16\\}[/tex]
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
For a charity event, raffle tickets are printed such that they have a vowel (excluding ») as the first character and a
prime number less than 10 as the second digit. (Note that 1 is not a prime number.)
The probability that the winning ticket has the vowel contained in the word event and the digit is the number of
letters in the word event is 1/20 .
Reset
Next
Answers
Answer:
yes 1/20 is correct
Step-by-step explanation:
The probability that the winning ticket will have the letter e on it would be P=5%.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
For the probability of two independent events:
P(A and B) = P(A) P(B)
so we have to find the probability for each event to happen.
For a charity event, raffle tickets are printed such that they have a vowel (excluding ») as the first character and a prime number less than 10 as the second digit.
(Note that 1 is not a prime number.)
There are 5 vowels in the alphabet (a, e, i, o, and u).
Therefore the probability for the first letter to be e
P(A) = 1/5
We also know there are 4 prime numbers between 0 and 10 (2, 3, 5, 7)
so the probability for the number to be a 5 is:
P(B) = 1/4
Now, the probability of getting a ticket that starts with an e and ends with a 5
P(A and B) = P(A) P(B)
= 1/4 x 1/5
= 1/20
Therefore, the probability is 5%.
Learn more about probability here;
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Solve the following formula for the indicated variable.
– 5x – 3y = 13: solve for y.
Answers
9514 1404 393
Answer:
y = -5/3x -13/3
Step-by-step explanation:
In any "solve for ..." problem, it is useful to start by identifying where the target is and what has been done to it. Here, y is in one term on the left side of the equation and it has had these things done to it:
multiply by -3add -5xWe want to undo these in reverse order. We undo addition by adding the opposite. We undo multiplication by multiplying by the reciprocal (equivalently, dividing). Whatever we do to one side of the equation, we must also do to the other side.
So, first we add the opposite of -5x to both sides of the equation.
-5x +5x -3y = 13 +5x
-3y = 13 +5x . . . . . . . . . collect terms
Next, we undo the multiplication by -3. We can do that by multiplying both sides by 1/(-3) = -1/3.
(-1/3)(-3y) = (-1/3)(13 +5x)
y = -5/3x -13/3 . . . . . also we rearranged the terms to standard form
Thomas ram from the start line to go post and back the distance from the start line to the goalpost is 46 meters how far did Thomas run
Answers
Answer:
92m!
Step-by-step explanation:
46 times 46 is 92
please give me brainliest!!!<3
Abjejwjjdjejwjdhhrigvhhyrwwtiij itessfjhvxx
Answers
Will give Brainliest! Please answer quickly! :) M'N'O'P' has vertices at M'(5, 4), N'(6, 4), O'(6, 7) and P'(3, 7). THe center of dilation is the origin, MNOP has vertices at M(4.5, 6), N(9, 6), O(9, 10.5) and P(4.5, 10.5). What is the algebraic representation of this dilation?
a
(x, y) --> (1/2x, 1/2y)
b
(x, y) --> (3/2x, 3/2y)
c
(x, y) --> (2/3x, 2/3y)
d
(x, y) --> (1/3x, 1/3y)
Answers
Answer:
It might be b
Step-by-step explanation:
I think it is B
What is the equation for calculating the area of a triangle?
A = 1/4 base · height
B = length · width
C = pi · height
D = 1/2 base · height
Answers
Answer:
A= 1/2 base*height
Step-by-step explanation:
: )
The correct equation for calculating the area of a triangle is D = 1/2 base · height.
The equation for calculating the area of a triangle is D = 1/2 base · height. This formula represents the most commonly used method for finding the area of a triangle.
To use this formula, you multiply the base of the triangle by its corresponding height, and then divide the result by 2.
This is because the area of a triangle is equal to half the product of its base and height.
By dividing by 2, we account for the fact that a triangle is essentially half of a parallelogram.
Therefore, the correct equation for calculating the area of a triangle is D = 1/2 base · height.
Learn more about the triangles here:
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Can someone answer these 2 please and thank you
Answers
You have to subtract from both sides for the first one, and divide both sides for the second
estimate the quotients 6.15 ÷ 31
Answers
Problem 1: Jackson is going to have five four wheelers at his birthday party. Each four wheeler takes 4 gallons of gas. How many total gallons of gas do they need to fill up all the four wheelers?
Answers
Answer:
20 gallon of gas is needed
Will give brainliest again for help
Answers
Answer:
B and C are the answers
Step-by-step explanation:
this is the second time my answer has been deleted.
angles FMK and HMK are congruent because corresponding angles are congruent---- if you were to cut this in half horizontally, then place the two pieces on top of each other, you would see that the angles line up perfectly.
angles GMK and JNL are supplementary because they add up to 180 degrees-- Alternate exterior angles are supplementary.
Sydney wants to make 15 beaded rings for a craft show. She needs 60 beads for each ring. She has 852 beads. Does Sydney have enough beads to make 15 complete rings?
(She can only make 14 rings I just need to know how many she has leftover)
Answers
Answer:
She actually does have enough beads to make 15 complete rings
Step-by-step explanation:
3 1/4 x 6 1/2 x 2=? I need help please!!
Answers
Answer:
42.25
Step-by-step explanation:
Answer:
[tex]\frac{169}{4}[/tex] or 42.25
Step-by-step explanation:
If you turn the fractions into decimals they become easier to multiply.
1) 3.25 x 6.50 = 21.25
2) 21.25 x 2 = 42.25
Simplify:
3 [23 + (4 – 2)3 – (6 - 2)2]
O A. 3
o
B. 12
D. 24
O o
E-3
Answers
Answer:
45
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
3[23 + (4 - 2)³ - (6 - 2)²]
Step 2: Evaluate
[Brackets] (Parenthesis) Subtract: 3[23 + 2³ - 4²][Brackets] Exponents: 3[23 + 8 - 16][Brackets] Add: 3[31 - 16][Brackets] Subtract: 3[15]Multiply: 45What is the order of operations needed to evaluate the expression 4(5)−8÷2?
Answers
Using PEMDAS we would do the multiplication and division first and then the subtraction. So 4*5 = 20 and 8/2 is 4 so therefore 20-4 is 16.
Answer:
PEMDAS (Multiply and divide, then add and subtract)
Step-by-step explanation:
Multiply 4 and 5 to get 20-8/2
Divide 8 by 2 to get 20-4
subtract to get 16
asappp please . Explain
Answers
Answer: D: 2 1/2
Step-by-step explanation:
Solve for u.
Simplify your answer as much as possible.
?
Answers
Get rid of the denominators: multiply the LCM
u+2/ 9 x45= 4/5x45
5(u+2) = 9(4)
5u+ 10 = 36
Regular elimination way: solve
5u+10-10=36-10
5u/5 = 26/5
u = 5.2
Answer:
The value of u is 5.2
Step-by-step explanation:
.msd
(2x+37-4)-(5x + 2)
This is super URGENT please helppp
Answers
Answer:
-3x+31
Step-by-step explanation:
Ok so first let's get the negative out of the parentheses
(2x+37-4)-(5x+2) -> 2x+37-4-5x-2
Now this will make it easier to simplify the equation
2x-5x+37-4-2
All you have to do from there is simplify
-3x+31
There are six hats and seven mittens what is the ratio of mittens to total
Answers
Answer:
7:13
Step-by-step explanation: The ratio of mittens is 7 and the ratio of the total items (including the hats) would be 13, because 6+7=13. Therefore, the ratio of mittens to the total would be 7:13. Hope this helps ^-^.
Choose any number, say 20, and divide 729 by 20 ignoring any remainders. " 729/20 = 36 " Find the average of 20 and 36. 20 + 36 / 2 = 28. " Repeat the process until the estimate is the same as the quotient (until the remainder is 0). " 729 / 27 = 27.
Answers
Answer:
Answer is solved in the explanation below.
Step-by-step explanation:
Solution:
We have to repeat the process until the estimate is the same as the quotient and remainder = 0. Which can be done only in the case of value = 27 (remainder = 0)
729/27 = 27 (remainder 0)
Let's I am starting this process from 19
So,
729 divided by 19 = 38.3684
Ignoring the remainders
729 divided by 19 = 38
Now, average of 19 and 38 = (19+38)/2 = 28
729 divided by 28 = 26.03
ignoring the remainders = 26
Now, average of 28 and 26 = (28+26)/2= 54/2 = 27
So,
729 divided by 27 = 27
Hence,
estimate is the same as quotient ( and remainder = 0)
what is 20÷40+30-400÷10000
Answers
Answer:
brainly: this looks like a question for a calculator.
Step-by-step explanation:
Answer:
30.46
Step-by-step explanation:
Evaluate (-3^3)/6^2. Write your answer as a fraction in simplest form.
Answers
Answer: i know its -0.75, but thats decimal, you might just have to make that a fraction yourself, sorry
Step-by-step explanation:
Following are the calculation to the simplest form:
Given:
[tex]\frac{(-3^3)}{6^2}[/tex]
To find:
simplest form=?
Solution:
[tex]\to \frac{(-3^3)}{6^2}= \frac{(-27)}{36}= \frac{-9}{12}=\frac{-3}{4}[/tex]
Therefore, the final answer is "[tex]-\frac{3}{4}[/tex]".
Learn more:
brainly.com/question/17678775
Please help I’m desperate
(#32)
Answers
Answer:
Concept: Piece values
4 pizzas 1/5 to each friend Hence 4 pizza × 5= 20 total slices 1 pizza can be given to 5 friends So 20 friends toralPlease answer this correctly without making mistakes
Answers
Debra tutors history. For each hour that she tutors, she earns 50 dollars.
Let E be her earnings (in dollars) after tutoring for H hours.
Write an equation relating E to H . Then use this equation to find Debra's earnings after tutoring for 19 hours.
Answers
2(5x+7)=16
what the answer?
Answers
Answer:
x = 1/5
Step-by-step explanation:
2(5x + 7) = 16
2 * 5x + 2 * 7 = 16
10x + 14 = 16
10x = 16 - 14
10x = 2
x = 2/10
x = 1/5
PLEASE HELP ASAP please someone help me so far my day has sucked and I need help. this is easy math just help meeeee.
5/6 +4/5
please help me answer correctly my grade depends on it
Answers
Answer:
1 19/30
Step-by-step explanation:
Answer:
NEVERMIND (I thought 45/30, but i dont know)
Step-by-step explanation:
x/-3+11=8
can anybody help?
Answers
Answer:
httfjydkyhfkugfufluyfluyflu
Step-by-step explanation:
Answer: [tex]x = 0[/tex]
Step-by-step explanation:
First, we need to get x alone.
To do this we must add -3 + 11. Which will get you 8.
The new equation will now be: [tex]x / 8 = 8[/tex].
Then, we continue to evaluate by subtracting 8 from the area where x is. But as you know, what we do to one side. We must do to the other.
So we subtract 8 from one side, and we subtract 8 from the other.
So the last equation would be.
[tex]x = 0[/tex]