Use the Quadratic Formula
Use the Quadratic Formula to find the zeros of the given
expression. Be sure to show your steps!
2x2-7x+3
Plz help no links
Answers
Answer:
1/2 and 3
Step-by-step explanation:
The quadratic formula is as given:
( -b±√(b^2-4ac) )/2a
To use it, plug in the a,b and c values.
ax^2+bx+c
In this case a is equal to 2, b is equal to -7, and c is equal to 3
plugging it into our formula gives us:
(-(-7)±√(-7^2-4*2*3) )/2*2
Which is equal to:
7±√(49-24) / 4
= 7±√25 / 4
=7±5 / 4
=2/4, 12/4= 1/2, 3
Related Questions
Fill in the blank to complete this trig
ratio.
y
tan a =
a
Х
[?]
B
N
B
С
у
Z
Answers
Answer:
z/y
Step-by-step explanation:
if you roll a dice one time what is the probability for it to land on a number greater than 2
Answers
Answer:
4/6
Step-by-step explanation:
This is because there is 6 sides to a dice and the side with 1 and 2 are the only sides with numbers less than 2. So only 4 sides out of the 6 can be greater giving the answer 4/6!
Someone answer this for me
Answers
Answer:
I think it is B or 17 ft
Step-by-step explanation:
Hope this helps. Tell me if I'm wrong
Answer: Probably 30
Step-by-step explanation: If you multiply 12 x 5 = 60, which we don't see that answer. I'll say C because 12 + 12 is 24. Add 5 and you get 29. The closer answer to 29 is 30. I could be wrong because I'm only in Middle School and kinda get confused with questions like these.
if A={1,2,3,4} and B={3,4,5,6} are two sets,find (A-B).
Answers
Step-by-step explanation:
[tex](A-B) = ( - 2, \: - 2, \: - 2, \: - 2)[/tex]
I will give brainliest to the first person to answer the question! Please be correct and please help <33
Answers
Answer:
112.25
Step-by-step explanation:
Answer:110.25
Step-by-step explanation:
HELPPPPP
What is the area of the actual living room?
Answers
Answer:
The answer is 51,200 in².
Step-by-step explanation:
(4x40)x(8x40)=51,200
Help! it's easy but I need help
Answers
Answer:
no lol
Step-by-step explanation:
Answer:
i will tell you what to do and then you do the work
Step-by-step explanation:
arrange the numbers from lowest to largest
count the amount of numbers to find how many students wrote each test
to find the mean add all of the numbers up then divide by the amount of numbers there are
to find the mode it that is the number that appears the most or the most common value
to find the median is the middle number, when you put it from lowest to largest, it will be the middle number
hope this helps
Slope of the line that passes through (8,-9) and (14,-9)
Answers
Answer:
slope = 0
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (14, - 9)
m = [tex]\frac{-9+9}{14-8}[/tex] = [tex]\frac{0}{6}[/tex] = 0
Forty-five percent of what number is 15.75?
Answers
45 percent (calculated percentage %) of what number equals 15.75? Answer: 35.
Answer:
35
Step-by-step explanation:
15.75 / 0.45 = 35
A wise man once said, "500 reduced by 4 times my age is 188." What is his age?
Answers
Answer:
125
Step-by-step explanation:
Answer:
He Is 78 Years Old.
Step-by-step explanation:
a = age
Solve for a in 500 - 4a = 188.
Simplify 500−4a=188.
500−4a=188
500+−4a=188
−4a+500=188
Subtract 500 from both sides.
−4a+500−500=188−500
-4a = -312
Divide both sides by -4.
[tex]\frac{-4a}{-4} =\frac{-312}{-4}[/tex]
a = 78
Answer:
He Is 78 Years Old.
PLS ILL MARK BRAINLIEST (100 points)
Answers
Answer:
For part A:
9x² - 36x + 36 = 0
9(x² - 4x + 4) = 0
9(x-2)(x-2) = 0
Radicand = Discriminant = 36² - 4(9)(36) = 0
there is 1 real zero that repeats itself)
zero is x=2.
Use factoring. Factors of 7 are 1 and 7
2x²-9x+7 = 0
(2x-7)(x-1) = 0
2x-7 = 0 (x-1)=0
2x = 7x=1
x = 7/2
Your solutions are x = 1 and x = 7/2
Step-by-step explanation:
Which ones the right answer?
Answers
The answer is D. (7,8)
You are able to count from 0 to ten, and you always put the x number first!
Hope this helps :)
With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.
Which of the two helicopter companies gives you the best ride for your money?
Answers
Answer:
B
Step-by-step explanation:
I already take this question before
please help me :))) i really need help
Answers
5.
A balloon is released from the top of a building. The graph shows the height of the balloon over time. What does the slope and y-intercept reveal about the situation?
A. The balloon starts at a height of 0 ft and rises at a rate of 10 ft.
B. The balloon starts at a height of 10 ft and rises at a rate of 0 ft.
C. The balloon starts at a height of 0 ft and rises at a rate of 100 ft.
Answers
Answer:
Step-by-step explanation:
the balloon starts at a height of 0 ft and rises at a rate of 100 ft.
i will give brainiest if correct please hurry!!
You flip a coin 50 times and get 26 tails. What is the experimental probability of flipping heads? Write your answer as a simplified fraction or a percentage.
Answers
Answer:
12/25
Step-by-step explanation:
If you got 26 tails, that means you got 50 - 26 or 24 heads. The experimental probability can be represented by the desirable flips over the total number of flips. We are looking for heads, so the amount of heads is the amount of desirable flips, and the total is 50. From this, we get the fraction 24/50 which simplifies to 12/25.
Write an exponential function in the form y=b^x that goes through the points (0,9) and (3,4608)
Answers
Answer:
y = 9 * bˣ
Step-by-step explanation:
y = a * bˣ
9 = a * b⁰ = a * 1
a = 9
4608 = 9 * b³
b³ = 512
b = 8
y = 9 * bˣ
The world's largest ice cream cone was 10 feet tall and 3 feet in
diameter. Ice cream weighs about 19.8 pounds per cubic foot. If this cone
was filled with ice cream to the top without going over, approximately how
many pounds of ice cream could this cone hold?
A. 467 pounds
B. 600 pounds
C. 1,400 pounds
D. 1,866 pounds
Answers
Answer:
23.56
Step-by-step explanation:
all you have to do is find the volume
lets set up the equation: V=πr2h 3=π·1.52·10 3≈23.56194
Then round : 23.56
Your final answer is 23.56 You're Welcome!!!
What percent df 160 is 56? Use the percent bar model.
Answers
Answer:
35%
i think
Step-by-step explanation:
What are all the zeros of the function f(x) = 4x^2 + 8x + 3?
Answers
Answer: -1/2 and -3/2
Step-by-step explanation:
I think I’m not sure
a plastic box contains balls of different colors. among them, 18 balls were chosen. what does the number 18 represent?
Answers
Answer:
the amount of that were pulled out
Step-by-step explanation:
1.On field day, the P.E. coach divides the students into two groups, Positives and Negatives. He wants to have the same amount of students of each group on each side of a rope, to play Tug-of-War.
He uses the following expression to figure out how many students of a certain group he still needs to create an even match.
–5 + 20
Evaluate the expression and write the answer below. Write only a number, either positive or negative. No letters
Answers
Answer:
-15
Step-by-step explanation:
because -5 + 20 = -15.
The coach needs 15 negative players to join the negative team in order to get 20 players (which would make the teams even)
I just need help in this last question plsssss
Answers
Answer:
B) 0.8
Step-by-step explanation:
If events are said to be independent, then just multiply the probability of the first event by the second if they are supposed to be happening together.
P (A) * P (B) = 0.8 x 1 = 0.8
Kyle spends $44 for four sweatshirts.
Answers
Answer:
I think the answer is B. sorry if its wrong..
Step-by-step explanation:
Answer:
Bar C and the equation 4y = 44
Hope this helps!
10)
A) x + 2 y = 1
C) x - 2y = 10
B) x-1= 2
D) x – 2y=
Answers
Answer:
B)
Step-by-step explanation:
y-intercept = -2
slope = 1
in slope-intercept form the line would be: y = x - 2
if we subtract 'x' from each side we get:
-x + y = -2
we don't want to leave 'x' as negative so we can multiply each term by -1 to get:
x - y = 2
the length of a rectangle is twice its width if the perimeter of the rectangle is 72 inches, find its area.
Answers
length = 2 x width
permiter = length x width x 2
perimeter = 72
72 ÷ 2 = 36
36 = 1 length and 1 width
(2 x width) + width = 36
width = x
2x + x = 36
3x = 36
x = 12
width = 12
length = 2 x width = 2 x 12 = 24
so
width = 12
length = 24
WILL MARK BRAINLIEST HELP ASAP ASAP
Answer choices are
3/2
3/4
1/2
-1/4
-1/2
Answers
Answer:
A. 3/2
Step-by-step explanation:
When two exponents have the same base, you can cancel the bases and set the exponents equal to each other
3x-2=x+1
3x=x+3
2x=3
x=3/2
Below is how I did it
7676767676767676767676767
Answers
Answer:
uhhh is this a trick question lol
have a good day :D
Step-by-step explanation:
IF YOU HELP ILL GIVE U FREE COOKIE Charlotte earns 212 minutes of playing video games for every 5 math homework problems she completes. Tonight's homework has a total of 24 math problems. What is the MOST time she will be able to play video games tonight? PLEASE HELLPPPPp
Answers
Answer:
16.96hrs or 1017.6mins
Step-by-step explanation:
24 / 8 = 4.8
212 x 4.8 = 1017.6 mins
16.96 hours
HElP NEED ANSWER FAST WILL GIVE BRAIN
Answers
Answer:
c
Step-by-step explanation: