Explication étape par étape:
Compte tenu des expressions ';
A = 4 (x + 5) -8
B = x² + 15
Nous devons vérifier si A = B pour les deux valeurs de x à x = 1 et x = 3
à quand x = 1
A = 4 (1 + 5) -8
A = 4 (6) - 8
A = 24-8
A = 16
B = x² + 15
B = 1² + 15
B = 1 + 15
B = 16
Donc à quand x = 1, A = B = 16
quand x = 3
A = 4 (x + 5) -8
A = 4 (3 + 5) -8
A = 4 (8) - 8
A = 32-8
A = 24
B = 3² + 15
B = 9 + 15
B = 24
Également lorsque x = 3, A = B = 24
Cela montre que le postulat d'Emmas est juste.
Which units would be used for a measurement of area?
cm 2
π
inches
ft 3
Solve x2 – 12x + 11 = 0 by completing the square.
Question 7 options:
x = –1
No Real Solutions
x = 11 and x = 1
x = 11
Answer:
Step-by-step explanation:
x^2 – 12x + 11 = 0
(x-11)(x-1)
x= 11, 1 completing the square
Write an equation that represents the line. Use exact numbers
Answer:
y= 2/3x + 1.25
Step-by-step explanation:
I can't see the exact number but it's probably 1.25. Sorry if it's wrong :)
ayeeeeee who watched "the voice" tonight
ayeeeeeeeee not meeee
not me butt ayyyy whos failing school :)
I need help please I forgot how to do this
Answer:
no it is not proportional
Answer:
No 3/9 would be proportional to 6/18
Step-by-step explanation:
I think
hhhhhhheeeeeeeeeeellllllllllllloooooooooooooopppppppppppppppppppppppppppp
Answer:
nooooooooooo biiiiiiiiiiit.ch
Answer:
c
Step-by-step explanation:
change is rise over run, and 3 is your rise and 2 is your run, so when the line goes up 3, it goes to the right 2 units
Maria takes 2 hours to plant 50 flower bulbs. Lois takes 3 hours to plant 45 flower bulbs. Working together, how long should it take them to plant 150 bulbs?
Answer:
Maria: (50 bulbs)/(2 hours) = 25 bulbs/hour
Lois: (45 bulbs)/(3 hours) = 15 bulbs/hour
Together: 25 + 15 = 40 bulbs/hour
(150 bulbs)/(40 bulbs per hour) = 3 3/4 hours
(3/4 hours)(60 minutes/hour) = 45 minutes
Total time: 3 hours 45 minutes
IN A GAME,THE PROBABILITY OF THE SPINNER LANDING ON A 2 IS 1/3. HOW MANY TIMES WOULD YOU SPIN EXPECT TO LAND ON A 2 IF YOU SPIN THE SPINNER12 TIMES. PLEASE HELP!!! PLEASE HELP ASAP!! WILL MARK BRAINLIIEST!!
Answer:
I’m pretty sure u would spin it 4 times
Step-by-step explanation:
I hope that helps check with someone else tho ❤️❤️
What is correct?
Screenshot below
I will give out 11 points
Find the x-intercept and y-intercept of the line.
2x+y=8
y-intercept:
x-intercept:
Answer:
The x intercept is 4 (by substituting y as zero we get x intercept)
And the y intercept is 8 (by substituting x as zero we get y intercept)
Take (4, 0) and take (8, 0) to graph the line
You're welcome!
Answer:
x = 4 y = 8 graph (4,0) and (8,0)
All of the following effect the wind motion EXCEPT
A. Gravity
B. Rotation of the earth
C. Friction with the ground
D. Location of high and low pressure
(Science middle school)
Answer:
I think option D.
Step-by-step explanation:
lmk if it's wrong
Rachel pays $131.44 for a desk, including tax. the tax is 31 cents less than 1/16 of the desk's price. what is the price of the desk before adding the tax?
help me plz
which one is greater 6.65 or 6.650
Answer:
neither they are both equal
Step-by-step explanation:
Answer: there equal/ the same.
Step-by-step explanation:
Write an equation to represent the following description "fourteen less than 8 times a number is -11
Answer:
(8 * x) -14 = -11
Step-by-step explanation:
* = multiply sign (i didnt want to put "x" as the multiply sign since "x" is already being used) ( mightve confused you with 2 "x"s in the parenthesis.
x = the number that is missing being multiplied by 8
I put "8" multiplied by "x" in parenthesis since you do parenthesis first in an equation.
Write a direct variation equation that relates x
and y. Then solve.
If y= -8 when x= -2, find x when y= 32
Answer:
y/x= -8/-2= 4 => when y=32 => 32/x=4 => x=8
The volume of a rectangular prism whose dimensions are binomials with integer coefficients is modeled by the function V(x) = x^3 − 14x^2 + 49x − 36. Given that x − 1 and x − 9 are two of the dimensions, find the missing dimension of the prism.
Answer:
The missing dimension of the prism is (x-4)
Step-by-step explanation:
Here, we want to find the missing dimensions of the prism
To get the volume, we are to multiply three dimensions since we are talking about volume
Mathematically, to find the third dimension, we need to divide the original polynomial by the product of the two other dimensions
The product of the two other dimensions is;
(x-1)(x-9) = x^2-9x-x + 9
= x^2-10x+ 9
So we divide;
(x^3-14x^2+49x-36)/(x^2-10x+ 9)
We can use long division to get this
using long division, the answer here is x-4
The volume of a prism is the product of its dimensions.
The missing dimension of the prism is x - 4
The volume function is given as:
[tex]\mathbf{V(x) = x^3 - 14x^2 + 49x - 36}[/tex]
Let the missing dimension of the prism be y.
So, the volume is calculated using:
[tex]\mathbf{V(x) = y \times (x - 9) \times (x -1)}[/tex]
Multiply the factors
[tex]\mathbf{V(x) = y \times ( x^2-9x-x + 9)}[/tex]
[tex]\mathbf{V(x) = y \times ( x^2-10x + 9)}[/tex]
Equate both expressions of volume
[tex]\mathbf{y \times ( x^2-10x + 9) = x^3 - 14x^2 + 49x - 36}[/tex]
Make y the subject
[tex]\mathbf{y = \frac{x^3 - 14x^2 + 49x - 36}{x^2-10x + 9 }}[/tex]
Factor the numerator
[tex]\mathbf{y = \frac{(x - 4)(x^2-10x + 9 )}{x^2-10x + 9 }}[/tex]
Cancel out common factors
[tex]\mathbf{y = x - 4}[/tex]
Hence, the missing dimension of the prism is x - 4
Read more about volumes at:
https://brainly.com/question/21308855
through: (4, -5), perp. to y =2/3x – 3
Answer:
y=-3/2x+11
Step-by-step explanation:
M a t h w a y
Roger completes a quiz with these rules: 5 points are given for each right answer, 2 points are lost for each wrong ans. Roger gets 6 questions correct and 4 questions wrong. What is roger's final score ?
Answer:
The final score of Roger is 22.
Step-by-step explanation:
The final score (F) of Roger is given by:
[tex] F = 5R - 2W [/tex]
Where R is the right answers and W is the wrong answers
Since he gets 6 questions correct (R = 6) and 4 question wrong (W = 4) we have:
[tex] F = 5R - 2W = 5*6 - 2*4 = 22 [/tex]
Therefore, the final score of Roger is 22.
I hope it helps you!
Angles formed by parallel lines and transversal
What composition of rigid motions maps APOR LO AXZY?
A T<1,3> (270, 0)
B. Rx=0.T<0,2>
C. Tx6,2>. Rx = -2
D. Ry=-2.T-6,0>
Answer:
Looking for an answer for this one
Step-by-step explanation:
Question 1
8 pts
You are shopping at Math-Mart and your total purchase is $80. What is the total cost if the
tax rate is 8%?
Answer:
86.40
Step-by-step explanation:
First you do 80 x 0.08 to get 6.4, then you add that to 80 to get 86.40 dollars
A company tests the life of its rechargeable batteries over six months of use. They test how long a battery will last after a full charge and put the data into a scatter plot. On the best-fit line y=-12.05+224.26 about how many months will a typical battery last before it is completely dead? Round your answer to the nearest tenth of a month.
Answer:
18.6 months
Step-by-step explanation:
Given that :
Best fit line from scatterplot :
y=-12.05x +224.26
x = Number of month
y = charge on battery
Number of months a typical battery uses before being dead completely :
When battery is dead completely ; charge =0, y = 0
y = -12.05x + 224.26
0 = - 12.05x + 224.26
12.05x = 224.26
x = 224.26 / 12.05
x = 18.610788
Hence, 18.6 months before battery is completely dead.
Divide quadratics by linear expressions (with remainders)
Divide the polynomials.
Your answer should be in the form p(x) +
where p is a polynomial and k is an integer.
3
37
22 + 4
3
Stuck? Watch a video or use a hint.
Report a problem
Answer:
x + 3 + [tex]\frac{13}{x-3}[/tex]
Step-by-step explanation:
Divide using Synthetic division
dividing by ( x - 3)
Using 0 to represent the x- term
3 | 1 0 4
↓ 3 9
+ +
------------------
1 3 13 ← remainder
Thus
[tex]\frac{x^2+4}{x-3}[/tex] = x + 3 + [tex]\frac{13}{x-3}[/tex]
Express the null hypothesis and the alternative hypothesis in symbolic form that would be used for a hypothesis test. A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness.
Answer:
Null Hypothesis
H₀ : P = 3.8
Alternative Hypothesis
H₁: P > 3.8
Step-by-step explanation:
Explanation:-
Null Hypothesis :-
The single statistic, H₀ will be that the sample statistic
H₀ : There is does not differ significantly from hypothetical parameter values
H₀ : P = 3.8
Alternative Hypothesis:
The statistic , H₁ will be the sample statistic
H₁: There is differ significantly from hypothetical parameter values
H₁: P > 3.8
Tell whether the following equation has one, zero, or infinitely many solutions. 2(4x + 10) = 8x + 20. Group of answer choices:
A) Infinitely many solutions
B) One solution
C) Zero solutions
Answer:
The equation will have infinitely many solutions.
Option A is correct
Step-by-step explanation:
We need to tell if the equation [tex]2(4x + 10) = 8x + 20[/tex] has one, zero, or infinitely many solutions.
First we solve the equation to find the value of x
[tex]2(4x + 10) = 8x + 20[/tex]
First multiply 2 with terms inside the bracket
[tex]8x+20=8x+20[/tex]
Now Subtract 20 from both sides
[tex]8x+20-20=8x+20-20[/tex]
[tex]8x=8x\\0=0[/tex]
So, the equation will be true for all values of x
As after solving the equation we get 0=0 so, the equation will have infinitely many solutions.
Option A is correct
Which one is correct? Please hurry <3
Answer:
PEMDAS so multiply or divide the coefficient
Step-by-step explanation:
Determine which regions contain cube roots of -1
Answer:
A, C, F
Step-by-step explanation:
10.022 in word form
Answer:
ten point zero twenty two
Step-by-step explanation:
How do you write 37.025 in word form?
How to Write Out Number 37.025 in Words: thirty-seven and twenty-five thousandths in (US) American English, Number Converted (Spelled Out) to Words.
Part A: A graph passes through the points (0, 2), (2, 6), and (3, 12). Does this graph represent a linear function or a non-linear function? Explain your answer in words.
Part B: Write one example of a linear function and one example of a non-linear function. (Use x and y as the variables) (10 points)
Answer:
Im doing the same quesiton for flvs and dont know
Step-by-step explanation:
Answer:
what school do u do
Step-by-step explanation:
Jeff collects baseball cards. His collection is getting quite large, so he would like to keep
the cards in an album. He has an average of 10 cards for each of 24 teams. How many
album pages will he need if each page can hold 8 cards (4 on each side)?
Answer:
30
Step-by-step explanation:
10 x 24 = 240
240 divided by 8 = 30