Given:
The quadratic equation is
\(x^2+1=2x-3\)
To find:
The expression that correctly sets up the quadratic formula with the given equation.
Solution:
We have,
\(x^2+1=2x-3\)
\(x^2+1-2x+3=0\)
\(x^2-2x+4=0\)
On comparing with \(ax^2+bx+c=0\), we get
\(a=1,b=-2,c=4\)
The quadratic formula is
\(x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\)
Putting \(a=1,b=-2,c=4\), we get
\(x=\dfrac{-(-2)\pm \sqrt{(-2)^2-4(1)(4)}}{2(1)}\)
Therefore, the required expression is \(\dfrac{-(-2)\pm \sqrt{(-2)^2-4(1)(4)}}{2(1)}\).
Wes mixed different juices to make fruit punch. He filled one-half of the punch bowl with orange juice. Then he filled half of the remaining space with grape juice. Finally, he filled the rest of the punch bowl with 300\text{ mL}300 mL300, start text, space, m, L, end text of cherry juice.
Answer:
1.2Litres
Question:
Wes mixed different juices to make fruit punch. He filled one-half of the punch bowl with orange juice. Then he filled half of the remaining space with grape juice. Finally, he filled the rest of the punch bowl with 300 mL300\text{ mL}300 mL300, space, m, L of cherry juice. How many liters of fruit punch did Wes make?
Step-by-step explanation:
Let the total punch bowl be = P
Portion of Orange juice = ½ of total punch bowl
= ½ × P = P/2
Portion of grape = ½ of the remaining space
Remaining space = P - P/2 = P/2
Portion of grape = ½ × P/2 = P/4
The rest of the punch bowl is for cherry = 300mL
P/2 - P/4 = 300
(2P - P)/4 = 300
P/4 = 300
P = 300×4
P = 1200mL
1mL = 10^(-3)L
P = 1.2 ×10³ × 10^(-3)L
P = 1.2L
Wes made 1.2liters of fruit punch.
Para racionalizar el denominador de la fracción 6−2√3+5√
se requiere:
A.
multiplicar el denominador por 3−5√
B.
multiplicar numerador y denominador por 3−5√
C.
multiplicar numerador y denominador por 3+5√
D.
multiplicar numerador y denominador por 6+2√
We need to multiply the numerator and denominator by 3-√5 to rationalize the denominator of the fraction. Therefore, the correct answer is option B
To rationalize the denominator of the fraction 6−2√3+√5, we need to eliminate any radicals present in the denominator. We can do this by multiplying both the numerator and denominator by an expression that will cancel out the radicals in the denominator.
In this case, we can observe that the denominator contains two terms with radicals: -2√3 and √5. To eliminate these radicals, we need to multiply both the numerator and denominator by an expression that contains the conjugate of the denominator.
The conjugate of the denominator is 6+2√3-√5, so we can multiply both the numerator and denominator by this expression, giving us:
(6−2√3+√5)(6+2√3-√5) / (6+2√3-√5)(6+2√3-√5)
Simplifying the numerator and denominator, we get:
(6 * 6) + (6 * 2√3) - (6 * √5) - (2√3 * 6) - (2√3 * 2√3) + (2√3 * √5) + (√5 * 6) - (√5 * 2√3) + (√5 * -√5) / ((6^2) - (2√3)^2 - (√5)^2)
This simplifies to:
24 + 3√3 - 7√5 / 20
Therefore, the correct answer is option B.
To learn more about numerator and denominator click on,
https://brainly.com/question/7067665
#SPJ1
Will give Brainly please
The value of the mean excluding the outlier is 130. 5
What is an outlier?An outlier can be defined as a data point that differs significantly or greatly from other observations.
It occurs as a result of;
variability in the measurement indication of novel dataexperimental errorFrom the information given, we have that;
121, 89, 410, 203, 55, 230, 182, 148, 135, 233, 11, 219, 108, 192
Since, the outlier is 410
The mean is given as;
= 121 + 89+ 203+ 55 + 230+182 + 148 + 135 + 233+ 11+ 219 + 108 + 192/13
Add the values
= 1696/13
= 130. 5
Hence, the value is 130. 5
Learn about outliers at: https://brainly.com/question/3631910
#SPJ1
A compression takes place when 0 1.
True
False
Answer:
i think it is true
Step-by-step explanation:
factor the trinomial below
x^2+15x+56
a. (x+4)(x+14)
b. (x-7)(x-8)
c. (x+7)(x+8)
d. (x-4)(x-14)
WILL MARK BRAINLIST!!!!!!!!!!!!!!!!!
Answer:
184
Step-by-step explanation:
f(-9) means find the value of the function when x = -9, so substitute -9 into the function and solve:
3(-9)^2 + 5(-9) - 14
3(81) + 5(-9) - 14
3(81) + (-45) - 14
243 - 45 - 14
184
A pizza shop sells large cheese pizzas for eight dollars each additional topping is $.75 you can also purchase beverages for a $1.50 each. How much would it cost for large pizza with two additional toppings and three beverages
Answer:
15.00
Step-by-step explanation:
8+0.75+0.75+1.50+1.50+1.50=
a restaurant asks their customers to fill out a questionnaire indicating whether their service was excellent, very good, good, or poor. the rating scale used is an example of the scale. a. binary/dummy b. unordered categorical c. ordered categorical d. continuous
The rating scale used by the restaurant is an example of an ordered categorical scale (c)
An ordered categorical scale is a type of categorical scale where the categories have a specific order or ranking. In this case, the categories "excellent," "very good," "good," and "poor" have a clear order from highest to lowest, indicating the level of customer satisfaction.
A binary/dummy scale, on the other hand, only has two categories, such as "yes" or "no."
An unordered categorical scale does not have a specific order or ranking, such as gender (male or female) or hair color (brown, black, blond, etc.).
A continuous scale, such as height or weight, has an infinite number of possible values and can be measured to any degree of precision.
So, the restaurant's questionnaire uses an ordered categorical scale to measure customer satisfaction.
To Know more about Rating Scale
https://brainly.com/question/19964736
#SPJ4
The radius of a circle is increasing at a rate of 8 centimeters per minute. Find the rate of change of the area when the radius is 2 centimeters. Round your answer to one decimal place.
The rate of change of the area when the radius is 2 centimeters is approximately 100.5 square centimeters per minute.
To find the rate of change of the area of a circle when the radius is 2 centimeters, we need to use the formula for the area of a circle, which is \(A = πr^2.\)
We know that the radius is increasing at a rate of 8 centimeters per minute, so we can use this information to find the rate of change of the area.
We can start by finding the area of the circle when the radius is 2 centimeters. Substituting r = 2 into the formula, we get:
A = π(2)^2
A = 4π
So the area of the circle is 4π square centimeters when the radius is 2 centimeters.
Now, let's find the derivative of the area with respect to time. Using the power rule of differentiation, we get:
dA/dt = 2πr (dr/dt)
Substituting r = 2 and dr/dt = 8, we get:
dA/dt = 2π(2)(8)
dA/dt = 32π
So the rate of change of the area when the radius is 2 centimeters is 32π square centimeters per minute. To round this to one decimal place, we can use a calculator to get:
dA/dt ≈ 100.5
Therefore, the rate of change of the area when the radius is 2 centimeters is approximately 100.5 square centimeters per minute.
Learn more about centimeters here:
https://brainly.com/question/19098836
#SPJ11
Rewrite as a simplified fraction.3.16
The decimal number 3.16 in the form of the simplest fraction is 79/25.
The portion or part of the complete item is represented by a fraction. It stands for the equal components of the whole. The denominator and numerator are the two components of a fraction. The top number is referred to as the numerator, and the bottom number is referred to as the denominator.
Consider the decimal number,
Let x = 3.16
Then,
x = 3.16 = 316/100
The fraction then can be simplified as,
x = ( 158 × 2)/ (50 × 2)
x = 158/50
x = ( 79 × 2)/ ( 25 × 2 )
x = 79/25
Hence, the number 3.16 in the simplest fraction is 79/25.
Learn more about fraction here:
brainly.com/question/17220365
#SPJ1
How do you find the image under a linear transformation?
To calculate the kernel, locate the vector subspace in which the homogeneous implicit equations result from the linear transformation formula's component parts being equal to zero.
What is linear transformation?A function from one vector space to another that respects the underlying (linear) structure of each vector space is called a linear transformation.
A linear operator, or map, is another name for a linear transformation.
The zero transformation and identity transformation are two significant illustrations of linear transformations.
An illustration of a linear transformation is the zero transformation, which is denoted by T(x)=(0) for every x.
Also linear is the identity transformation denoted by T(x)=(x).
Find the vector subspace in which the implicit equations are the homogeneous equations produced when the components of the linear transformation formula are equal to zero in order to compute the kernel.
This is the same as finding the null space of the linear transformation matrix.
Therefore, to calculate the kernel, locate the vector subspace in which the homogeneous implicit equations result from the linear transformation formula's component parts being equal to zero.
Know more about linear transformation here:
https://brainly.com/question/20366660
#SPJ4
Can someone help me with this Question.
The formula we need to use is given above. In this formula, we will substitute the desired values. Let's start.
\(P=3W+D\)A) First, we can start by analyzing the first premise. The team has \(8\) wins and \(5\) losses. It earned \(8 \times 3 = 24\) points in total from the matches it won and \(1\times5=5\) points in total from the matches it drew. Therefore, it earned \(24+5=29\) points.
B) After \(39\) matches, the team managed to earn \(54\) points in total. \(12\) of these matches have ended in draws. Therefore, this team has won and lost a total of \(39-12=27\) matches. This number includes all matches won and lost. In total, the team earned \(12\times1=12\) points from the \(12\) matches that ended in a draw.
\(54-12=42\) points is the points earned after \(27\) matches. By dividing \(42\) by \(3\) ( because \(3\) points is the score obtained as a result of the matches won), we find how many matches team won. \(42\div3=14\) matches won.
That leaves \(27-14=13\) matches. These represent the matches team lost.
Finally, the answers are below.
\(A)29\)
\(B)13\)
Answer:
a) 29 points
b) 13 losses
Step-by-step explanation:
You want to know points and losses for different teams using the formula P = 3W +D, where W is wins and D is draws.
A 8 wins, 5 drawsThe number of points the team has is ...
P = 3W +D
P = 3(8) +(5) = 29
The team has 29 points.
B 54 pointsYou want the number of losses the team has if it has 54 points and 12 draws after 39 games.
The number of wins is given by ...
P = 3W +D
54 = 3W +12
42 = 3W
14 = W
Then the number of losses is ...
W +D +L = 39
14 +12 +L = 39 . . . substitute the known values
L = 13 . . . . . . . . . . subtract 26 from both sides
The team lost 13 games.
__
Additional comment
In part B, we can solve for the number of losses directly, using 39-12-x as the number of wins when there are x losses. Simplifying 3W +D -P = 0 can make it easy to solve for x. (In the attached, we let the calculator do the simplification.)
<95141404393>
ANSWER QUICK FOR BRAINLIEST!!! THREE MATH QUESTIONS!!!
Question 10 (Multiple Choice Worth 2 points)
(One-Step Inequalities MC)
Write the inequality for the statement:
the difference between a number and seven eighths exceeds negative two thirds
f plus 7 over 8 is greater than 2 over 3
f minus 7 over 8 is less than or equal to negative 2 over 3
f minus 7 over 8 is greater than negative 2 over 3
f minus 7 over 8 is less than negative 2 over 3
Question 11 (Multiple Choice Worth 2 points)
(Adding and Subtracting Linear Expressions MC)
Simplify the expression.
the expression negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths
negative 37 over 24 times j minus 17 over 12
negative 37 over 24 times j plus 17 over 12
43 over 24 times j plus 1 over 12
negative 43 over 24 times j plus negative 1 over 12
Question 13 (Multiple Choice Worth 2 points)
(Solving Two-Step Equations MC)
Solve the equation for x.
−0.28x − 15.3 = 1.92
x = 61.5
x = −61.5
x = 47.8
x = −47.8
1. The inequality for the statement is C. f minus 7 over 8 is greater than negative 2 over 3
2. The value of the expression is C. 43 over 24 times j plus 1 over 12.
3. −0.28x − 15.3 = 1.92 will be B. -61.5.
What is the inequality?1. The difference between a number and seven eighths exceeds negative two thirds is:
Let the number be f.
This will be:
f - 7/8 > -2/3
2. The expression negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths will be:
= -1/8j + 2/3 - 5/3j + 9/12
= -1/8j - 5/3j + 9/12 - 8/12
= -3/24j - 40/24j + 1/12
= -43/24j + 1/12
3. −0.28x − 15.3 = 1.92
Collect like term
−0.28x = 1.92 + 15.3
-0.28x = 17.22
x = 17.22 /- 0.28
x = -61.5
Learn more about inequalities on:
brainly.com/question/11613554
#SPJ1
For which polygon is the sum of the interior angles equal to 5402
Answer:
32-gon
Step-by-step explanation:
5402 = (n - 2) · 180
5402/180 = n-2
30 = n-2
32 = n
Pick A Random Number Between 1-40 if i pick your number and you get it right then you get brainliest.
Answer:
32
Step-by-step explanation:
two dice are thrown n times in succession. compute the probability that double 6 appears at least once. how large need be to make this probability at least 1/2
The probability of obtaining double 6 at least once greater than or equal to 1/2.
Let X be the number of times that double 6 appears when two dice are thrown n times in succession. The probability of obtaining double 6 at least once can be expressed as\(P(X ≥ 1) = 1 - P(X = 0\)).
The probability of not obtaining double 6 at all can be expressed as \(P(X = 0) = (35/36)^n\), since the probability of not getting double 6 in a single trial is 35/36.
Therefore, the probability of obtaining double 6 at least once is \(P(X ≥ 1) = 1 - (35/36)^n\). To make this probability at least 1/2, we need to solve the equation \(1 - (35/36)^n ≥ 1/2\), which yields n ≥ 4.92. Therefore, n must be greater than or equal to 5 to make the probability of obtaining double 6 at least once greater than or equal to 1/2.
Learn more about probability here:
https://brainly.com/question/30034780
#SPJ4
Factor to write an equivalent expression
36a - 16
Answer:
4(9a-4)
Step-by-step explanation:
36a - 16
We can factor 4 from each expression.
4*9a - 4*4
4(9a-4)
4x +2y= -18 Standard to Slope Intercept Form
Answer:y=-2x-9
Step-by-step explanation:
Slope intercept form is y=mx+b
4x+2y=-18
Subtract 4x from both sides:
2y=-4x-18
Divide the entire thing by 2:
y=-2x-9
how far can a line segment go?
Answer:
Step-by-step explanation:
En geometría, el segmento es un fragmento de recta que está comprendido entre dos puntos, llamados puntos extremos o finales. Así, dado dos puntos A y B, se llama segmento AB a la intersección de la semirrecta de origen A que contiene al punto B con la semirrecta de origen B que contiene al punto A
bradley scores 44 out of 58 in his french test. express this is a percentage
Answer:
75.86 %
Step-by-step explanation:
\( \frac{44}{58} \times 100\)
75.86 %
HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!HELP PLEASE ASAP!!!!!!
Answer:
Step-by-step explanation:
Michelle and Rhonda eat dinner at
la fancy restaurant, Their bill came to
$105.36. They gave their waiter a tip that
was 22% of the bill. About how much
money did they give the waiter for his tip.
Answer:
$22.17
Step-by-step explanation:
105.36 multiplyed by 0.22 ( you need to change the 22% to a decimal so just make it 0.22) then once you multiplyed them then you get your answer.
help PLEASE!!!!!!!!!!!!
A full glass of water can hold 1/6 of a bottle
How many glasses of water can be filled with 3 1/2 of water
Answer:
21
Step-by-step explanation:
Well you basically divide 3 and 1/2 by 1/6 which you would you have to simplify the 3 and 1/2 which is 7/2 and switch the denominator and numerator of the 1/6 which would be 6/1 and after you multiply(7/2 x 6/1=42/2) it would be 42/2 which you would have to simplify by dividing 42 and 2 which is 21. There you go I hope this helps.
Answer:
21.
Step-by-step explanation:
That would be 3 1/2 divided by 1/6.
= 7/2 / 1/6
= 7/2 * 6
= 42/2
= 21 glasses.
Jason drove 180 miles in 4 hours and Ali drives 75 miles in 1.5 hours. Who is driving faster
how to do the addition with scientific notation the question is (8.60×10⁶ + (1.2×10⁴) please help
Answer:
8.612 x 10⁶
Step-by-step explanation:
Given problem:
(8.60×10⁶) + (1.2×10⁴)
Solve by the process of scientific notation;
Solution:
(8.60×10⁶) + (1.2×10⁴)
Adjust the exponent so that they are of the same value;
8.6 x 10⁶ = 860 x 10⁴
So;
(860 x 10⁴) + (1.2×10⁴) = (860 + 1.2) x 10⁴
= 861.2 x 10⁴
or
8.612 x 10⁶
Find the slope represented in the table below
Answer:
0
Step-by-step explanation:
To find the slope, we can take any two x and y coordinate pairs in the table. For this one let's use (-6, 5) and (-3, 5)
The equation for slope is:
\(Slope = \frac{y_2-y_1}{x_2-x_1} \)
We can plug in the x and y values into the equation:
\(Slope = \frac{5-5}{-3-(-6)} =\frac{0}{-3+6} =\frac{0}{3} =0\)
The slope is 0
Which of the following expressions evaluate to True? a. 10=8 b. 8 ' < '10' c. 10!=8 d. 8<=10 e. 10>=8
The expressions that are True are 8 < 10, 10 != 8, 8 <= 10 and 10 >= 8 Thus correct options are b, c, d and e
Let's go through each expression and determine if it evaluates to True or False:
a. 10=8: This expression checks if 10 is equal to 8. Since 10 is not equal to 8, this expression evaluates to False.
b. 8 < 10: This expression checks if 8 is less than 10. Since 8 is indeed less than 10, this expression evaluates to True.
c. 10 != 8: This expression checks if 10 is not equal to 8. Since 10 is not equal to 8, this expression evaluates to True.
d. 8 <= 10: This expression checks if 8 is less than or equal to 10. Since 8 is less than 10, this expression evaluates to True.
e. 10 >= 8: This expression checks if 10 is greater than or equal to 8. Since 10 is indeed greater than 8, this expression evaluates to True.
In summary, the expressions that evaluate to True are:
b. 8 < 10
c. 10 != 8
d. 8 <= 10
e. 10 >= 8
To know more about expressions, visit:
https://brainly.com/question/28170201#
#SPJ11
ILL GIVE YOU BRAINLIEST!!
Solve `2x^{2}+7x+3=0`
Which solution method would be most efficient?
-Factoring
-Taking the square root
-Quadratic Formula
Show your work!
Answer:
Factoring
Step-by-step explanation:
\(2x^2+7x+3=0\\x^2+7x+6=0\\(x+1)(x+6)=0\\(2x+1)(x+3)=0\\x=-\frac{1}{2} ,x=-3\)
Solve the proportion
x/15 = 3/9
Answer:
5
Step-by-step explanation:
x/5=3/9
9x=45
x=45/9
x=5