Answer:
I, III and IV
Step-by-step explanation:
Required
Determine equivalent expressions to [tex]6x^2 - 13x - 28[/tex]
To do this, we simplify each of the given options.
[tex]I.\ 6x2+8x-21x-28[/tex]
Simplify like terms
[tex]6x2+8x-21x-28[/tex]
[tex]= 6x2-13x-28[/tex]
This is equivalent to the given expression
[tex]II.\ 2x(3x + 4) + 7x(3x - 4)[/tex]
Open Bracket
[tex]2x(3x + 4) + 7x(3x - 4)[/tex]
[tex]2x*3x + 2x*4 + 7x*3x - 7x*4[/tex]
[tex]6x^2 + 8x - 21x^2 - 28x[/tex]
Collect Like Terms
[tex]6x^2 - 21x^2 + 8x - 28x[/tex]
[tex]-15x^2 - 20x[/tex]
This is not equivalent to the given expression
[tex]III.\ 2x(3x+4)-7(3x+4)[/tex]
Open Bracket
[tex]2x(3x+4)-7(3x+4)[/tex]
[tex]2x*3x + 2x*4 - 7*3x - 7*4[/tex]
[tex]6x^2 + 8x - 21x - 28[/tex]
Simplify Like Terms
[tex]6x^2 -13x - 28[/tex]
This is equivalent to the given expression
[tex]IV.\ (3x + 4)(2x-7)[/tex]
Open Brackets
[tex]3x * 2x - 3x * 7 + 4*2x-4*7[/tex]
[tex]6x^2 - 21x+ 8x-21[/tex]
Simplify like terms
[tex]6x^2 -13x-21[/tex]
This is equivalent to the given expression
Hence: I, III and IV are equivalent to the given expression
What is happening to this graph when the rvalues are
between - 1 and 1?
Answer:
Where's The graph?
Step-by-step explanation:
Answer:
There is no graph post the graph
Step-by-step explanation:
(M1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageiros é:
Step-by-step explanation:
M1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageirosM1219Q3SP) Um aplicativo de transporte de passageiros cobra uma taxa de R$ 0,75 por viagem, chamada de "Custo Fixo". Além dos R$0,75, a tarifa do aplicativo tem preço base inicial de R$2 e cobra R$1,40 por quilômetro rodado e R$ 0,26 por minuto de viagem. Considerando a distância percorrida em quilômetros igual a “q” e o tempo de viagem em minutos igual “t”, qual a função que representa o valor a ser cobrado por uma viagem usando esse aplicativo de transporte de passageiros
What is 50% of 36?
o9
o16
o18
o34
Answer:
18
Step-by-step explanation:
Find the angle whose complement is 79 degree
Answer:
Complementary angels= 90⁰
90-79= 11
11⁰
Answer: 11 degrees
Step-by-step explanation:
complementary angles equal 90 degrees
90 - 79 = 11
A sample of 50 students is taken from a local college and it is found that the
average test score of a recent math exam was 78 with a standard deviation of 6.
What percent of the entire school population can be expected to have score
above 84?
Your answer
i got 13 I am pretty sure that Is the answer
Graph the line by plotting any two ordered pairs that satisfy the equation.
-6y = 9
Answer:
GRAPH IS IN THE PICTURE BELOW
Step-by-step explanation:
Use the similar triangles to setup a proportion and solve for x
Answer:
[tex]\frac{22}{12}[/tex] = [tex]\frac{x}{10}[/tex]
Step-by-step explanation:
ΔUSA ≅ ΔPAL
[tex]\frac{AU}{AP}[/tex] = [tex]\frac{US}{PL}[/tex]
[tex]\frac{22}{12}[/tex] = [tex]\frac{x}{10}[/tex]
x = [tex]\frac{220}{12}[/tex] = [tex]\frac{55}{3}[/tex] = [tex]18\frac{1}{3}[/tex]
Assume that process that makes the parts can be altered to adjust the overall mean of the reflectiveness score. Also assume that if an individual part has a score less than 85, then the part is given a passing quality score. The adjusted value of the true mean in population S that would result in approximately 80% of parts from that population being given a passing score is:______
a. greater than 80
b. less than 80
c. equal to 80
Answer:
c. equal to 80
Step-by-step explanation:
Given that:
The population mean = 80
The standard deviation is = 6
The sample mean = 85
The objective is to find the probability that is less than 85
[tex]P(X < 85) = P( Z < \dfrac{x-\mu}{\sigma})[/tex]
[tex]P(X < 85) = P( Z < \dfrac{85-80}{6})[/tex]
[tex]P(X < 85) = P( Z < \dfrac{5}{6})[/tex]
[tex]P(X < 85) = P( Z < 0.833)[/tex]
From the standard normal table
P(X <85) = 0.7977
P(X< 85) = 79.77%
P(X< 85) = 80%
Therefore, The adjusted value of the true mean in population S that would result in approximately 80% of parts from that population being given a passing score is: equal to 80 .
Write a story about temperatures that this expression could represent: ½ + (-¾)
Answer:
boom
Step-by-step explanation:
Answer:
so when your in the avatar state it is below zero, so you have to wear warm cloths
Step-by-step explanation:
Graph each set of integers on a number line.
7. (4, -3, 1,5)
-6-5-4-3-2-1 0 1 2 3 4 5 6
8. (-15, -12, -9, -2)
+++++
-14 -12 -10 8-6
H-
-2
4
9. (8,3, -7,-5)
-8 6 4
-2.
0
2.
4
6
8
10. 1-14, - 7, 10, -1)
++
-15
-12
9
3
0
3
6
9
11. 1-6, -1,0,31
-6-5-4-3-2-1 0 1 2 3 4 5 6
Answer:
-14 -12 -10 8-6
Step-by-step explanation:
Mathematics:If she uses 486.7 cm of paper to cover the lateral surface area of the cylinder,what is the diameter of the cynlinder?
Answer:
iiamdsjefej 444 i like milk
Step-by-step explanation:
wffdfe
WILL GIVE 25 POINTS PLEASE HELP
Answer:
A: rising B: falling C: falling D: falling
Step-by-step explanation:
i think its correct i might be wrong
Suppose that 84% of the cases of car burglar alarms that go off are false. Let p be the proportion of false alarms in a random sample of 110 cases of car burglar alarms that go off. Calculate the mean and standard deviation of p and describe the shape of its sampling distribution.
Round your answer to four decimals places if necessary
up= ______
op= ______
The sampling distribution of p is normal or skewed to the right?
Answer:
0.84 ; 0.0349545 ; symmetric
Step-by-step explanation:
Given that:
p = proportion of false alarm
Sample size (n) = 110
The mean of p
Since 84% of car buglar alarms turns out as false, then, the mean value of p = 0.84
To obtain the standard deviation ; we use the relation ;
√(p(1 - p) / n)
Standard deviation :
√0.84(1 - 0.84) / 110
√0.84(0.16) / 110
√0.1344 / 110
√0.0012218
= 0.0349545
np = 110 * 0.84 = 92.4 (distribution is symmetric or normal)
If 1 day (24 hours) is equal to 1000 years, what does one minute equal?
Answer:
Step-by-step explanation:
1440 minutes in a day. meaning that 1.44 years is about a minute
HELP
Lin ran 2 ¾ miles in ⅖ of an hour. Noah ran 8 ⅔ miles in 4/3 of an hour.
Who ran faster, Noah or Lin?
How far would Lin run in 1 hour?
How far did Noah run in 1 hour?
How long would it take Lin to run 1 mile at that rate?
How long would it take Noah to run 1 mile at that rate?
Lin ran faster because if you convert 2/5=24mins 4/3=80mins and lin would run 2.5 miles in an hour and Noah would run 0.75 miles
What is the value of 1/2 plus 1/3
First to answer
Answer:
The value is 5/6 or 0.83
Let me know if its correct! Have a great day!
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Steve is buying apples for the fifth grade. Each bag holds 11 apples. If there are 91 students total, how
many bags of apples will Steve need to buy if he wants to give one apple to each student?
Steve will need to buy
bags.
Which expression is equivalent to −78−(−34)
Answer:
-44
Step-by-step explanation:
HELP PLEASE!!! 17 POINTS!!
If triangle PQR is plotted, it will have the following coordinates,P(-4,0),Q(4,2)and R(-2,4). If point R is translated 4 units right and 7, what are the coordinates of R'?
Answer:
(2, -3)
Step-by-step explanation:
Right now, R is at (-2, 4). If it is pushed 4 units to the right, it becomes -2+4 = 2 on the x-axis. If it is pushed 7 units down, it becomes 4-7 = -3. Thus, the coordinates are (2, -3)
A triangle has vertices A(-3,6), B(-3, 4), and C(3,4).
If the triangle is translated 2 units to the right and 1 unit down, what will be the new coordinates of vertex A?
Answer:
(-1, 5)
Step-by-step explanation:
Right now, A is at (-3, 6). If it is pushed 2 units to the right, it becomes -3+2 = -1 on the x-axis. If it is pushed 1 unit down, it becomes 6-1 = 5. Thus, the coordinates are (-1, 5)
inside each set and subsets .write at least 5 example of each kind of number. integers , whole ,rational ,natural ,irrational
Answer:
Integers: is the set of all the numbers that can be created by adding ones or subtracting ones a given number of times to zero.
for example:
4 = 0 + 1 + 1+ 1 +1 is an integer.
-3 = 0 - 1 - 1- 1 is an integer.
0 is also an integer, you add ones zero times.
Then 5 examples of integers can be:
-10, -5, 0, 4, 18
Whole numbers: this set is the set of the positive integers and the zero.
Then 5 examples are:
0, 1, 4, 6, 173
Rational: All the numbers that can be written as a quotient of two integers.
5 examples are:
2/2, 7/3, 4/16, 100/10, -500/1048
Natural: Is the set of the positive integers.
5 examples are:
1, 4, 6, 120, 47
Irrational: Are numbers that have infinite digits after the decimal point, such that there is no pattern in those digits. The squareroots of prime numbers are always irrational numbers.
5 examples are:
pi, √2, √3, √5, √13
where pi = 3.141592653...
Is the relation between the perimeter of a circle and its diameter.
perimeter = diameter*pi.
Solve for x in this equation: 3/4 +|5-x| = 13/4
Step 1: Isolate the absolute value by subtracting
from both sides of the equation.
Answer: this is correct
Step-by-step explanation:
It says it’s correct
I am trying to be a
Jessica has 3 cards in a bag,each marked with a letter. The letters are X, Y, and Z. Without looking, she reaches into the
bag, pulls out a
card, and then puts the card back in the bag. If Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y
card, and then the Z card? In a fraction
Answer:
Step-by-step explanation: It’s 3/7, 1/27, 3/20 idk which one tho :(
Can you guess my number?
I am thinking of a number less than 91/2.Write down at least 3 choices of
what my number could possibly be.
Answer:
47 77 85
EXPLANATION
The Steckels decide to spend less on food and entertainment in order to put more money into savings. Which graph could represent the Steckels’ new budget?
Answer:
A histogram maybe
Step-by-step explanation:
One week, Sarah earned $192.00 at her job when she worked for 8 hours. If she is paid the same hourly wage, how many hours would she have to work the next week to earn $408.00?
Answer:
17 hours
Explanation:
Answer please!! urgent!!
Answer:
a
Step-by-step explanation:
Lots of points! Will give brainliest!
Answer:
Step-by-step explanation:
5
Estimate 8.2x6.7/0.46
Answer:
119 i hope it helps (:(
Step-by-step explanation:
0.09 divided by 0.81
Answer:
9
Step-by-step explanation:
Basically just remove the decimals and do 81/9 and you will get nine
You can remove the decimals because you are dividing which means that either way, you will get the same answer
the answer is 9 hope this helps