Answer:
f(x) = -3x² – 3x + 2
Step-by-step explanation:
Standard form of quadratic equation: [tex]f(x)=ax^2+bx+c[/tex]
Vertex form of quadratic equation: [tex]f(x)=a(x-h)^2+k[/tex]
(where (h, k) is the vertex of the function)
Intercept form of the quadratic equation: [tex]f(x)=(ax+c)(bx+d)[/tex]
Therefore,
standard form: [tex]f(x) = -3x^2- 3x + 2[/tex]vertex form: [tex]f(x) = -3(x - 2)^2 + 3[/tex]intercept form: [tex]f(x) = -3(x + 3)(x -4)[/tex]Convert to a decimal. Be sure to mark repeating decimals.
Answer:
[tex].24\\is\\reapeating\\0.24[/tex]
Step-by-step explanation:
Hello! I need help with this problem.
Jack bought 3 slices of pizza and 4 slices f mushroom pizza for a total cost of $12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of 8.50. What is the cost of one slice of mushroom pizza?
A. $3.00
B. $1.50
C. $2.00
D. $3.50
PLEASE HELP ♡
Answer:
C
Step-by-step explanation:
Let's set up a simultaneously equation to solve for two unknows.
Let x be the cost of cheese pizza
Let y be the cost of mushroom pizza
"Jack bought 3 slices of pizza and 4 slices f mushroom pizza for a total cost of $12.50."
Therefore,
3x + 4y = 12.50 (Equation 1)
"Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of 8.50."
Therefore,
3x + 2y = 8.5 (Equation 2)
From equation 1, let's solve for x in terms of y
3x + 4y = 12.50
3x = 12.50 - 4y
[tex]y = \frac{12.50-4y}{3}[/tex]
Plug in this y value into equation 2, we have:
[tex]3(\frac{12.50-4y}{3}) + 2y = 8.5[/tex]
We will get that y = 2
Hence, option C is the answer.
Diego bought mini muffins for $4.20. If 1mini muffin is $0.35, how many muffins did he buy? Show your reasoning
Can someone help mean pls
Answer:
It's option 'B'
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Which set of side lengths can form a triangle?
А. 6 cm, 8 cm, and 16 cm
B. 6 cm, 8 cm, and 10 cm
C. 6 cm, 7 cm, and 14 cm
D. 6 cm, 7 cm, and 20 cm
Step-by-step explanation:
6 cm, 8 cm, and 10 cm (B) form a triangle.
The Triangle Inequality Theorem states that the sum of the lesser two sides must be greater than the third.
A random variable is defined as a process or variable with a numerical outcome. Which of the following are random variables?
i. The amount of rain, in inches, that will fall in New York.
ii. The gender of a randomly drawn student from University of Houston. The number of books purchased next semester for my classes.
a. i only
b. ii only
c. iii only
d. i and iii
e. ii and iii
f. i, ii, and iii
Answer:
1 and 3
Step-by-step explanation:
The amount of rain in inches will be in numbers .So its random variableNo of books purchased is also a numerical .So its a random variable.A shopper pays $49.05 for a $45 desk chair after sales tax is added. What is the sales tax percentage?
Solve the system of equations:
x-y=4
4x-7z=24
4y+z=8
Answer:
Solve for x, y, and z. 1st Equation: 2x + 2y + 4z = 48. 2nd Equation: 2x + 9y + 7z = 105. 3rd Equation: x + 4y + z = 37. Subtract the 2nd Equation from the 1st Equation. This will eliminate the variable “x”.
Step-by-step explanation:
find the product. write your answer in exponential form 8^-9 x 8^4
Answer:
[tex]8^{-5}[/tex]
Step-by-step explanation:
When both terms share the same base, and you are multiplying, you are really adding the variables. Add:
[tex]8^{-9} * 8^{4}\\ = 8^{-9 + 4} = 8^{-5}\\\\8^{-5}[/tex]is your answer.
~
1. A cylindrical metal bar 50cm long and bom in
diameter is pulled out to form a wire of diameter
3 ml.
what's length is the wire .
Answer:
150
Step-by-step explanation:
Multiple 50 by 3 and ur final results
How to rewrite 4 x 6 2/3 as a product of a unit fraction and a while number.
Can you please help me
Answer:
-17 (I believe)
Step-by-step explanation:
If x = 64 then the first one is asking for the square root of 64 (8)
With y being 25 the second part of this problem is actually really easy, all its doing is getting the square root and then squaring it (doing nothing at all) so that would just be 25 which would make it
8-25 which would be -17
Please help me with this
Answer:I believe the answer is A
Step-by-step explanation:
A sports medicine doctor is interested in comparing the effectiveness of a new sports drink for adult athletes. The doctor randomly assigns a group of 80 adult athletes into 2 equal groups. One group is given the new sports drink, while the other is given a placebo.
Which type of study is the doctor using?
A. Experiment
B. Observational study
C. Survey
The type of study which is sports medicine doctor is using on the adult athletes for the placebo soft drink is experiment.
What is the type of statistical study?Statistical study is used to obtain the data and examine this data in the way, that its effectiveness can be measured.
There are three main types of statistical study-
A. Experiment-In this type of statistical study, the observer or the researcher see the change in the variable of a study with change in other variable experimentally by providing the necessary conditions. B. Observational study-In the observational study of statistics, the value of the variables are recorded for different associates of the set.C. Survey-In the survey type of study, the data is gathered by directly asking the queries to the people regarding the study.It is given that a sports medicine doctor is interested in comparing the effectiveness of a new sports drink for adult athletes.
For this, the doctor randomly assigns a group of 80 adult athletes into 2 equal groups of 40-40 each.
Now, one group is given the new sports drink, while the other is given a placebo.Here, the medicine doctor is directly giving the sport drink to a set of sample.
By this he will, see the effectiveness of the group which are given placebo drink compare to the other group, which are not given this drink.
Thus, type of study which is sports medicine doctor is using on the adult athletes for the placebo soft drink is experiment.
Learn more about the type of statistical study here;
https://brainly.com/question/13171394
Pythagorean theory . Thank you
Answer:
b=12, perimeter=36
Michael went to the store and bought a new laptop computer for $725, how much would he pay in tax if the tax rate is 3%
Plsss i need help
Answer:
$21.75
Step-by-step explanation:
3% = .03
725 * .03 = 21.75
PLEASE HELP ASAP!!!!!
The measure of angle JKL can be represented using the expression 3x + 5.
Point K has three lines extending from it. One line extends to point J, another to point M, and the other to point L. Angle J K M is 45 degrees. Angle M K L is x degrees.
What is the degree measure of AngleJKL?
°
Step-by-step explanation:
verified please mark me as brainlist pleaseAnswer:
65
Step-by-step explanation:
please help me with this !!
evaluate f(x) = [x - 12.3] at x = -4.8
thank you so much !!
Answer:Differentiate w.r.t. x. 12.3. 12.3. Tick mark Image. View solution steps ... Worked example: Taylor polynomial of derivative function. Khan Academy.
Step-by-step explanation:
15 is what percent of 45?
The percent of what 15 is of 45 is; 33.33%
What is the percentage of the number?
We want to find the percentage of 15 out of 45.
This means that we can express it as;
15/45 * 100%
⇒ 33.33%
Thus, we conclude that the percent of what 15 is of 45 is 33.33%
Read more about percentage at; https://brainly.com/question/843074
The ratio of dogs to cats at the
pet store is 2:5. If there are 6 more
cats than dogs, how many dogs are
at the pet store?
The ratio of dogs to cats at the
pet store is 2:5. If there are 6 more
cats than dogs, how many dogs are
at the pet store?
Dogs : 2
Cats : 5
Answer :-1
5 - 2 = 3,
-1, 0, 1, 2, 3, 4, 5
1 - 5 will give us a 6
PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST
Answer:
9.4 ( 4 + 12 ) = 145.6
Step-by-step explanation:
i used a calculator
what is the height of the tree?
what statement is true about the expression 12 - 7 + 3
Answer:
The Answer is B
________________________
If this helped mark me as brainliest!
Hope you have a great day!
Answer:
We can first determine it is not A or C, because these flatly do not equal the expression above.
I believe is it D, because of the commutative property.
The associative property of addition states that you can group the addends in different ways without changing the outcome. While the commutative property of addition states that you can reorder the addends without changing the outcome.
In this case, we are rearranging the addends, not groups of them.
Step-by-step explanation:
A rectangle has a length of 25x to the power of 3 and a width of 5x of power of 2. Find the area in square units.
3/4 (184+t) =237 what is t?
Answer:
t = -6.25
Step-by-step explanation:
3/4 (184+t) =237
multiply by 3/4
184 + t = 177.75
subtract 184
t = -6.25
An airplane left Chicago at 9:50 AM Central Time and arrived in Memphis at 11:30 AM Central Time. How long did the flight take
Considering that both Chicago and Memphis are in the same time zone, the flight took one hour and 40 minutes.
What was the length of the flight?It Chicago at 9:50 AM Central Time and arrived in Memphis at 11:30 AM Central Time. Since they are in the same time zone, we don't have to do anything but subtract, then:
11:30 - 9:50
30 < 50, hence we remove one hour from Memphis and add 60 minutes, thus:
10:90 - 9:50 = 1:40
The flight took one hour and 40 minutes.
More can be learned about operations with hours at https://brainly.com/question/25169144
the complement of 17% is what
Answer:
83%
Step-by-step explanation:
100%-17%=83%
i hope it helps
ASSESMENT. Indicate the voltage/resistance reading of the voltmeter/ohmmeter/multimeter below.
Correct answer= Brainlest and 5 stars with heart.
Nonsense= Report/ and I can disable ur acc so beware.
Answer:
When looking straight at the display, read the position of the needle along the scale.
Step-by-step explanation:
YAN PO YUNG CLUE TRY MO PONG GAWIN PERO YANG SAGOT KO HINDI PO NONSENSE
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)
= 8; = 6
P(5 ≤ x ≤ 17) =
Using the normal distribution, it is found that P(5 ≤ x ≤ 17) = 0.6247.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem, we are given that [tex]\mu = 8, \sigma = 6[/tex].
The probability is the p-value of Z when X = 17 subtracted by the p-value of Z when X = 5, hence:
X = 17:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{17 - 8}{6}[/tex]
[tex]Z = 1.5[/tex]
[tex]Z = 1.5[/tex] has a p-value of 0.9332.
X = 5:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{5 - 8}{6}[/tex]
[tex]Z = -0.5[/tex]
[tex]Z = -0.5[/tex] has a p-value of 0.3085.
0.9332 - 0.3085 = 0.6247.
Hence, P(5 ≤ x ≤ 17) = 0.6247.
More can be learned about the normal distribution at https://brainly.com/question/12517818
