Which is a zero of the quadratic function f(x) = 9x2 - 54x – 19?
x= 1/3
x=3 1/3
Answers
Answer:
x =1/3
Step-by-step explanation:
the zero quadratic function is x=1/3
Related Questions
Yasin has tried to work the size of the angle marked g in the regular decagon below, using the fact that exterior angles sum to 360°. His workings are shown below.
a) Write a sentence to explain what Yasin has done wrong.
b) What is the size of angle g? Show all your workings.
Answers
well, Yasin is correct, the exterior angles are all 36° each, however "g" is including more than just that, Check the picture below.
Answer: 36 is wrong
Step-by-step explanation: 360 - 36 = 324 degrees
Yvonne’s bakery makes blondies and brownies. ● Blondies are squares with 3 inch sides. ● Brownies are squares with 6 inch sides. ● The tray that displays the blondies and brownies has an area of 648 square inches and is completely full. If she has 4 rows of blondies and 4 rows of brownies, what fraction of the area of the tray, in square inches, is blondies?
Answers
Answer:
1/2 half of them are blondies
Step-by-step explanation:
Answer:
Step-by-step explanation:
the answer is 1/2 half of them are blondies
someone help me with this
Answers
Answer:
Step-by-step explanation:
Question 6 (Worth 5 points)
(04.05 MC)
Mike measured the height of an art frame as 6.33 feet, but the actual height was 7 feet. What is the percent of error in Mike's measurement?
9.45%
9.57%
10.58%
13.33%
Points earned on this question: 0
Answers
Answer:
aaaaaaaaaaaaaaaa
Step-by-step explanation:
Answer:
9.57%
Step-by-step explanation:
7-6.33/7 = 0.00957
0.00957×100% = 9.57%
what is the weight of a 3 pound human brain in ounces
Answers
3x16=48
Answer:
48Oz
Step-by-step explanation:
1 Pound=16Oz. Therefore: 3*16=48 Oz
which equation could be represented by the number line
< I I I I I I * l l l l l * l l l l l l > arrow going left A. -6 + (-1)=-7 B. 1+ (-7) = -6 C. -7 + 6 = -1 D. -6 + 7 = 1
Answers
9514 1404 393Answer: A. 3+ (-4) = -1Step-by-step explanation:The arrow indicates a subtraction of 4, or an addition of -4. The only equation containing such a subtraction or addition is choice A.
Pls help! Will give brainliest!!
Answers
Considering area (A) of garden as 30 square feet:
30 = x(2x+7)
Now we need to expand it:
x(2x+7) = 2x^2 + 7x
2x^2 + 7x = 30
Adding this into an Algebra calculator gives us 5/2 or 2.5
So x = 2.5
To prove this:
2(2.5) + 7 = 12
14 * 2.5 = 30
(2x+7) x = 30
you can distribute to make this easier
2x^2 + 7x = 30
you can plug this into quadratic formula by setting the equation =0, so:
2x^2 +7x -30 = 0
where 2x^2 = a
7x = b
and -30 = c
you can plug this into your calculator and get an answer of
X = 2.5
The table shows the cities that experienced droughts last year due to a shortage of rainfall. Which city had the greatest shortage of rain?
Houston / -15 inches
Birmingham / -17 inches
Jackson / -9 inches
Atlanta / -11 inches
A) Atlanta
B) Birmingham
C) Houston
D) Jackson
Answers
Answer: Birmingham
Step-by-step explanation:
beep
The height of a right square pyramid is multiplied by 7, and the length of the sides of its base do not change. By what factor will the volume of the original pyramid be multiplied?
Answers
Answer:
336
Step-by-step explanation:
7×7×7=336 you would have to multiple 7 time for the pyramid because how do you get your answer
Evaulate each expression when n = 2.3
N + 8n2 - 17=
Answers
Answer: 27.62
Step-by-step explanation:
plug in 2.3 wherever 'n' is
I'm assuming that the '2' in 8n2 is an exponent
2.3 + 8(2.3)² - 17 =
Using PEMDAS
start out with exponent since there isn't any parenthesis
(2.3)² = 5.29
2.3 + 8(5.29) - 17
move on to multiplication
8(5.29) = 42.32
2.3 + 42.32 - 17
with addition and subtraction, you do whichever comes first and since this equation starts with addition we'll start there
2.3 + 42.32 = 44.62
then the subtraction
44.62 - 17 = 27.62
Answer:
Step-by-step explanation:
The answer is 27.62
i need help ASAP ill mark brainliestttt
Answers
40.
Referring to the table below, find the probability that a worker
contacted at random will be 35 - 44 years old. Express the answer as a
decimal rounded to the nearest hundredth and as a percent.
Answers
Answer:
A; .31 + 31%
Step-by-step explanation:
What I did: I put 17,172 over 55,208 as a fraction and to get the percentage I compared the denominator to 100, after this you multiply 17,172 by 100 then divide that by 55,208 to get 31.1316147 which rounds out to 31, once you put that over the 100 that is the percentage ( I may not have explained it the best way possible or the most efficient method, but thats how I got my answer ).
Here is what I did:
……17,172……………?…………….….17,172 x 100 = A
—————— = ————…………..A/55,208 = ? ...55,208………….100…………..…..(? = 31.1316147)
[ I really hope this helped ;) ]
50 POINTS 50 POINTS! 50 points means - No unoriginal answers - No unhelpful answers - No spamming
Answers
Answer:
H=16 L1=3 L2=2
Step-by-step explanation: First, we need to brainstorm the multiples of 32 and 48, 16 comes to mind. Because 48 and 32 are both multiples of 16, one can determine that since 16x3 is 48 then L1, should be 3. Finally 16x2 is 32 so L2 must be 2.
Answer: 48 + 32 = 16 (3+2)
Step-by-step explanation:
Find the area of the whole rectangle:
48 + 32 = 80
Now things are more easier!let's just say that the length is 5 broken up and the height is 16
16 x 5 = 80
All we need to do is break it up correctly to fit make the totals 48 and 32.
16 x 3 = 48
16 x 2 = 32
In the end we get the equation:
48 + 32 = 16 (3+2)
Your welcome! please give brainliest :)
Describe the function between x=-4 and x=-1
Answers
help meee pleaseeeeeeeeee
Answers
Answer: the rate of change is 1/2
Step-by-step explanation:
The formula for slope is y2 - y1/ x2 - x1
I picked points (2,2) (x1 & y1) and (6,4) (x2 & y2)
4 - 2 = 2
6 - 2 = 4
2/4 is the rate of change, and 1/2 is 2/4 simplified
Please help..write expanded form of the expression
Answers
Ramiro did a survey of the number of pets owned by his classmates, with the following result
What was the mean Deviation of the number of pets?
A-1.02
B-1.053
C-1.087
D-1.12
Answers
The mean deviation of the number of pets Ramiro surveyed as shown in the table attached below is: D. 1.12
To find the mean deviation of the number of pets, the following steps would be taken:
Find the mean, which is sum of each frequency and score (fx) divided by the total number of pets. \(\mathbf{(\frac{\sum fx}{n} )}\)Subtract the mean from each score, \(\mathbf{( x - \bar x)}\)Sum the deviations together and divide by total number of pets.The formula for the mean deviation is given as: \(\mathbf{\frac{\sum f* |x - \bar x|}{n} }\)Mean deviation as solved in the table attached in the image below would be:
\(\mathbf{\frac{33.6}{30} = 1.12}\)
Therefore, the mean deviation of the number of pets Ramiro surveyed as shown in the table attached below is: D. 1.12
Learn more here:
https://brainly.com/question/24185612
Write and solve an equation to find the value of the X I'm going to post three pictures Can someone please help me get the answers this questions i hate math
Answers
9514 1404 393
Answer:
x = 19x = 34x = 39Step-by-step explanation:
1. A right angle has a measure of 90°. The whole is the sum of the parts.
(2x +3)° +49° = 90°
2x +52 = 90 . . . . . . . . divide by °, collect terms
2x = 38 . . . . . . . . . . . . subtract 52
x = 19 . . . . . . . . divide by 2
__
2. A linear pair measures 180°. The whole is the sum of the parts.
(x -5)° +151° = 180°
x +146 = 180 . . . . . . . divide by °, collect terms
x = 34 . . . . . . . . .subtract 146
__
3. We presume this pair of angles is supposed to be supplementary. That is, their sum is 180°.
64° +(3x -1)° = 180°
3x +63 = 180 . . . . . . . divide by °, collect terms
3x = 117 . . . . . . . . subtract 63
x = 39 . . . . . divide by 3
Select all shapes below that are nets of a pentagonal-based pyramid.
Answers
Answer:
A and B
Step-by-step explanation:
I took some paper and cut it to the shapes and folded them to see which ones are the answer and got those 2. :3
SPAM AND ILL DELETE UR ANSWER! GIVING 72 POINTS! PLEASE HELP ME!!! What conclusion can be determined from the dot plot below? A dot plot showing five dots above 9, six dots above 10, three dots above 11, and one dot above 12. (3 points) The number of observations is 10. The median of the data set is 10. The mean of the data set is 15. The range of the data set is 12.
Answers
Answer:
The conclusion that can be determined from the dot plot is that:
The number of observations is 15, as there are 5+6+3+1=15 dots in total.
The median of the data set is 10, as it is the middle value when the data is arranged in order.
The mean of the data set cannot be determined from the dot plot.
The range of the data set is 12, as it is the difference between the highest value (12) and the lowest value (9) in the data set.
Hope this Helps!
The number of observations is 15, as there are 5+6+3+1=15 dots in total.
The median of the data set is 10, as it is the middle value when the data is arranged in order.
The mean of the data set cannot be determined from the dot plot.
The range of the data set is 12, as it is the difference between the highest value (12) and the lowest value (9) in the data set.
Christina's town had an election last month. 189 people voted in the election and 36 did not vote. What percentage of the people voted?
Answers
Answer:
84%
Step-by-step explanation:
in photo
225×0.84
Answer:
Step-by-step explanation:
The percentage is the part/whole x 100 so we need to find the whole, which is 189+36=225 and the percentage is the amount of people who voted which is 189 and the part/whole x 100 is 189/225 = 0.84 0.84x100=84=84%
What is the slope, m, and the yo intercept of the line that is graphed below?
A. m = 1; (0,3)
B. m = 1; (-3,0)
C. m = -1; (0,3)
D. m = -1; (-3,0)
Answers
Answer:
\(slope = \frac{(3 - 0)}{( - 3 - 0)} \\ = \frac{3}{ - 3} \\ = - 1\)
ANSWER FAST PLEASE AND THANK YOU!!!
Answers
Answer:48
Step-by-step explanation:
Becuause you multiply 15x3=45 and then the gives you 48
Answer: 51 miles away
Step-by-step explanation:
If a single inch is 15 miles in proper scale, this means that we would need to multiply 15 by 3.4.
15mi x 3.4in = 51 miles
Simplify the following algebraic expressions.
A) -2x + 5 + 10x - 9
B) 3(x + 7) + 2(-x + 4) + 5x
Answers
B) 6x + 29
hi, i need help with this question :).
Answers
Answer: 1.3x10^6=1300000
Step-by-step explanation: Sorry, no explination.
It takes Marvin 2/3 of an hour to mow 1/2 of his lawn. If Marvin continues mowing at the same rate, how long will it take him to mow his entire lawn?
Answers
Answer:
1 1/4 of a hour if thats what u mean
Help brainliest if all’ answers are correct if not report answer all’ questions plz
(10 points)
Answers
I need the answer for this quick thanks in advanced
Answers
Answer:
w+12 = l
so
(w +(w + 12) )2= p
Step-by-step explanation:
The mean for Set A is 28 and the mean for set B is 32.5. The mean absolute deviation (MAD) is 3. What is the difference of the means as a multiple of the mean absolute deviation (MAD)?
The difference of the means as a multiple of the MAD is
Answers
Answer:
-13.5
Step-by-step explanation:
Answer:
-13.5
Step-by-step explanation:
month money help PLs
Answers
Answer:
second answer: y = 5x + 120; $180
Step-by-step explanation:
he starts with $120.
so, whatever else he does per month, there will always be the $120 starting amount to be added.
so, the third and the fourth answers are out.
then think : $5 every month.
that is how much after 2 months ? 2×5 = $10.
how much after 3 months ? 3×5 = $15.
so it has to be an equation that contains 5x (5 times the number of months).
combining both thoughts :
y = 5x + 120
now let's use x = 12 (for 12 months = 1 year).
5×12 + 120 = 60 + 120 = $180.
yes, it is that simple. no hidden "hocus pocus" is needed. just common sense.