g(n) = n^2+2
The composite function
(gºg)(-3)
Answer:
123
Step-by-step explanation:
[tex]g(n)=n^2+2\\g(g(-3))=g((-3)^2+2)=g(9+2)=g(11)=11^2+2=121=2=123[/tex]
What is the correct value of x in the equation 5x -5 = 0?
Answer:
x= 1
Step-by-step explanation:
The table compares the sizes (in grams) of rice packs and their cost (in dollars) for several different convenient stores.
Can the size of a pack be represented as a function of its price?
Price (dollars) Size (grams)
2.302.302, point, 30 100010001000
1.901.901, point, 90 850850850
2.002.002, point, 00 900900900
2.602.602, point, 60 120012001200
1.901.901, point, 90 850850850
2.502.502, point, 50 110011001100
1.701.701, point, 70 850850850
1.901.901, point, 90 950950950
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Yes
(Choice B)
B
No
vvv
Answer:
pues pienso que es la A fijate niña
Step-by-step explanation:
porque pues asi pienso
No the size of a pack cannot be represented as a function of its price.
What is Function?In mathematics, a function is represented as a rule that produces a distinct result for each input x. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.
Given:
It really depends, but the size of the pack can affect the pricing, if it is price by weight.
As, we know that function have have only one input value with their corresponding output.
But here the input value for rice packs 1.90 have two output values one is 850 and another 950.
Hence, the table cannot be represented as Function.
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thank u, next by Arianna Grande is 3.5 minutes long. From beginning to end, there are 350
beats in the song. What is the beats per minute for the song?
Answer: 10
Step-by-step explanation:
Which quadratic equation has roots –2 and 1/5?
a
5x^2 + 9x – 2 = 0
b
5x^2 – 11x + 2 = 0
c
x^2 + 4x + 4 = 0
d
5x^2 – 9x – 2 = 0
Answer:
The equation [tex]5x^2\:+\:9x\:-\:2\:=\:0[/tex] has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.
Step-by-step explanation:
Checking the equation
[tex]5x^2\:+\:9x\:-\:2\:=\:0[/tex]
putting x = -2 in the equation
[tex]5\left(-2\right)^2\:+\:9\left(-2\right)-\:2\:=\:0\:[/tex]
[tex]2^2\cdot \:\:5-9\cdot \:\:2-2=0[/tex]
[tex]2^2\cdot \:5-18-2=0[/tex]
[tex]20-20=0[/tex]
[tex]0=0[/tex]
L.H.S=R.H.S
putting x = 1/5 in the equation
[tex]5\left(\frac{1}{5}\right)^2\:+\:9\left(\frac{1}{5}\right)-\:2\:=\:0\:[/tex]
[tex]5\left(\frac{1}{5}\right)^2+9\cdot \:\frac{1}{5}-2=0[/tex]
[tex]\frac{1}{5}+\frac{9}{5}-2=0[/tex]
[tex]2-2=0[/tex]
[tex]0=0[/tex]
L.H.S=R.H.S
As putting x = -2 and x = 1/5 satisfy the equation.
Therefore, the equation [tex]5x^2\:+\:9x\:-\:2\:=\:0[/tex] has roots –2 and 1/5.
Hence, the option 'a' is the correct answer.
S(3x – 7) + 5x = 8x + 1
x=
Answer: -7s=1
Step-by-step explanation: Hope this helps
btw can i have brainliest?
Order the sides of the triangle from shortest to longest.
Answers:
Shortest Length = LNMiddle Length = LMLongest Length = MN========================================
Explanation:
Let's find the missing angle.
For any triangle, the three interior angles always add to 180
L+M+N = 180
75+50+N = 180
N+125 = 180
N = 180-125
N = 55
So we know the three angles of the triangle are
L = 75M = 50N = 55We see that M = 50 is the smallest angle, so the smallest side is the segment opposite this angle. The smallest side is LN. The smallest side is always opposite the smallest angle.
Similarly, the largest side is always opposite the largest angle. The largest angle here is L = 75, so the largest side is MN.
The middle side must therefore be LM.
The diagram below shows a visual summary.
I don't understand this
Answer:
U should do like this...
Which of the following has no solution?
O 10x + 5 = 3(5x + 7)
52 - 10 = 2 + 20
O 2(6 + 2) = 14 + 2x
O2(4 + 2) = 8 + 2x
Answer:
B is your answer
Step-by-step explanation:
help me with this please
Answer:
have an F- on math call for help!
Step-by-step explanation:
whats 7.126935967 rounded to the nearest one thousnadth
Answer:
7.127
Step-by-step explanation:
Hope this helps!
Answer:
7.127
Step-by-step explanation:
The thousandth place takes place in the 3rd digit past the decimal. So you'd have 7.126 and since there's a 9 next to it (RULE: 5 or above, round up, below 5, round down) you would round it to 7.127
A linear function has a y-intercept of 4 and passes through the point (-6 , 1 ) what is the slope of this line
Answer: m= 1/2
Step-by-step explanation:
It rises +3 and shifts right 6, and if simplified gives you 1/2.
Francis heard that a car stereo system was on sale for 30% off. If the sale price was 57.75, what was the original price of the stereo?
Step-by-step explanation:
First, what I do is I multiply the 57.75 by 0.30 which would get me 17.325 and then add it to the sale price, which adds up to a total of 75.075. Round that to the nearest hundrednth, and you got your answer!
Hope this help you!
identify the slope and the y-intercept of 3x-4y=-16
Answer:
I really don't understand your writing I am super sorry
Step-by-step explanation:
Answer:
3x-4y = -16
-4y = -3x-16
y = 3/4x+4
Slope = 3/4
Y-intercept = 4
!!!!HELP PLEASE!!!!! Does the exponential function, y =(0.15)^x model exponential growth or exponential decay?
A.) Exponential growth because the base is greater than 1.
B.) Exponential decay because the base is greater than 1.
C.) Exponential growth because the base is less than 1.
D.) Exponential decay because the base is less than 1.
The correct statement is,
''Exponential decay because the base is less than 1.''
Option D is true.
What is Function?
A relation between a set of inputs having one output each is called a function.
Given that;
The exponential function is,
⇒ y = (0.15)ˣ
Now,
Since, We know that;
The The exponential function y = (b)ˣ represent exponential growth
if b > 1
And, Exponential decay if b < 1.
Here, The exponential function is,
⇒ y = (0.15)ˣ
Clearly, b = 0.15 < 1
So, This represent Exponential decay because the base is less than 1.
Thus, Exponential decay because the base is less than 1.
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Show work on this pls
Answer:
largest angle measures 108°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180, that is
8x - 6 + 108 + 14 = 180, simplify left side
8x + 116 = 180 ( subtract 116 from both sides )
8x = 64 ( divide both sides by 8 )
x = 8
Thus
∠ U = 8x - 6 = 8(8) - 6 = 64 - 6 = 58°
Then the largest angle measures 108° ( ∠ B )
Find the difference of -12.7 - (-5.6)
17.13
-7.13
-7.1
-8.4
Answer:
-7.1
Step-by-step explanation:
HELP
FIND THE SLOPE OF THE LINE THROUGH (1, -1) and (6,2)
Answer:
slope = [tex]\frac{3}{5}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 1) and (x₂, y₂ ) = (6, 2)
m = [tex]\frac{2+1}{6-1}[/tex] = [tex]\frac{3}{5}[/tex]
HELP ASAP
An online auction charges sellers a flat fee of $1.20 and 2% of the amount of the sale. Let A be the amount of the sale in
dollars and C be the charge of the online auction. Explain whether the solutions A = -5 and C=1.1 are viable. (1 point)
O The solutions are not viable because the amount of the sale cannot be negative.
O The solutions are viable because the amount charged is positive.
O The solutions are not viable because the amount charged is not a whole number
O The solutions are viable because the amount of the sale is an integer.
Answer: The solutions are not viable because the amount of the sale cannot be negative.
Step-by-step explanation:
The solution A = -5 is not viable because A represents the amount of sale in dollars and so cannot be a negative number. The minimum amount that a person can make from sales is $0 so anything less than that is not viable.
For instance, if you are selling shoes for $4 each and make no sales in the day, your sales would be $0. It is not possible that your sales would be -$4.
Solve the equation x + 100 = 0.
Answer:
x = -100
Step-by-step explanation:
They cancel each other out
Answer:
-100
Step-by-step explanation:
-100 +100=0
They cancel each other out.
Please help you dont understand how much need help with this I dont have much points but pls help
Answer:
the frist and last one tell me if u get it correct
Step-by-step explanation:
Subtract:
(7x + 3) - (2x + 1)
Your answer should be in simplest terms.
Enter the correct answer.
Answer:
5x-2
Step-by-step explanation:
distribute the negative to get
7x+3-2x-1
simplify by combining like terms
5x-2
Answer:
76
Step-by-step explanation:
Please answer quickly! Brainiest and lots of points!
How can you get the variable alone in the equation x ÷ 9 = 279?
A. Add 9 to both sides
B. Subtract 9 from both sides
C. Divide both sides by 9
D. Multiply both sides by 9
A sale is going on at a sports store. A jersey is on sale for 20% off its original price of $250.00, plus GST of 5% what is the total cost of the jersey?
A.
$210.00
B.
$185.00
C.
$200.00
D.
$168.00
Answer:
Total cost of jersey = $210
Option A is correct option
Step-by-step explanation:
Original price of jersey = $250
Sale price is 20% of Original price i.e 20% off $250
Now finding 20% off 250
[tex]20\% \ of \ 250\\=\frac{20}{100}\times 250\\=50[/tex]
So there will be discount of $50
The Price of jersey after 20% discount is: 250-50 = 200
Sale Price of jersey = $200
Now we add 5% GST
5% off 200
[tex]5\% \ of \ 200\\=\frac{5}{100}\times 200\\=10[/tex]
So, GST amount is $10
Total cost of jersey = Sale Price + GST
Total cost of jersey = $200+$210
Total cost of jersey = $210
Option A is correct option
A bowling ball is dropped from a height of 50 feet
a. Write a function that gives the height h (in feet) of the bowling ball after t seconds.
h(t)=
b. Find the height of the bowling ball after 1 second.
c. How long does the bowling ball take to hit the ground? Round your answer to the nearest hundredth of a second.
Answer:
A. The function that gives the height of the bowling ball after t seconds is [tex]h(t) = 50-16.087\cdot t^{2}\,\,\,[ft][/tex].
B. The height of the bowling ball after 1 second is 33.913 feet.
C. The bowling ball will take approximately 1.763 seconds to hit the ground.
Step-by-step explanation:
A. From Physics we notice that ball experiments a free-fall, which is an uniform accelerated motion due to gravity and where air friction and effects of the Earth's rotation are neglected. The height of the ball is described by the following kinematic equation:
[tex]h(t) = h_{o}+v_{o}\cdot t +\frac{1}{2}\cdot g \cdot t^{2}[/tex] (1)
Where:
[tex]h_{o}[/tex] - Initial height of the ball, measured in feet.
[tex]v_{o}[/tex] - Initial velocity of the ball, measured in feet per second.
[tex]t[/tex] - Time, measured in seconds.
[tex]g[/tex] - Gravitational acceleration, measured in feet per square second.
If we know that [tex]h_{o} = 50\,ft[/tex], [tex]v_{o} = 0\,\frac{ft}{s}[/tex] and [tex]g = -32.174\,\frac{ft}{s^{2}}[/tex], then the function that gives the height of the bowling ball after t seconds is:
[tex]h(t) = 50-16.087\cdot t^{2}\,\,\,[ft][/tex] (2)
The function that gives the height of the bowling ball after t seconds is [tex]h(t) = 50-16.087\cdot t^{2}\,\,\,[ft][/tex].
B. If we know that [tex]t = 1\,s[/tex], then the height of the bowling ball is:
[tex]h(1) = 50-16.087\cdot (1)^{2}[/tex]
[tex]h(1) = 33.913\,ft[/tex]
The height of the bowling ball after 1 second is 33.913 feet.
C. The bowling ball hits the ground when height is zero. Let equalize (1) to zero and solve the resulting expression:
[tex]50-16.087\cdot t^{2} = 0[/tex]
[tex]16.087\cdot t^{2} = 50[/tex]
[tex]t \approx 1.763\,s[/tex]
The bowling ball will take approximately 1.763 seconds to hit the ground.
Joel has $40 saved in his bank account. He plans to add $8.00 per week when he starts his lawn mowing business.
Part A:
Write a linear equation for the amount in his bank, A dollars, in terms of time worked, t weeks.
Part B:
Find the number of weeks Joel will have to work to buy a $120 bike.
Joel will have to work ___
weeks.
Answer:
The answer is Joel has to work for 10 weeks
Step-by-step explanation:
Trust me its correct
pls mark me as brainliest
Answer:
10 weeks
Step-by-step explanation:
he has 40 dollars already in his bank account so you need to find 40+? +120 that will be 80. so if he needs 80 so do 80 dived by 8= 10 theres your answer
I’m confused about the whole thing, can anyone help me out?
Answer:
Sorry I cant help
Step-by-step explanation:
Answer:
Step-by-step explanation:
[tex](\frac{\sqrt{3}}{3} +\frac{\sqrt{3}}{2} i)^2\\=\frac{3}{9} +\frac{3}{4} i^2+2 *\frac{\sqrt{3}}{3} *\frac{\sqrt{3}}{2} i\\=\frac{1}{3} -\frac{3}{4} +i\\=\frac{4-9}{12} +i\\=-\frac{5}{12} +i\\[/tex]
[i²=-1]
which is of the form a+bi
where a=-5/12,b=1
Someone please help me :D
Answer:
16 pounds
Step-by-step explanation:
the whale ways 10,000 times as much and 160,000 divided by 10,000 is 16
What is the equation of this line?
y=−1/4x
y=1/4x
y=−4x
y = 4x
Answer:
y=4x
Step-by-step explanation:
Answer:
y=5x
Step-by-step explanation: