Answer:
f(x + 1) = x² - x
Step-by-step explanation:
f(x) = x² - 3x + 2 when f(x + 1)
f(x + 1) = (x + 1)² - 3(x + 1) + 2
f(x + 1) = (x² + 2x + 1) + (-3x - 3) + 2
f(x + 1) = x² - x + 0
f(x + 1) = x² - x
Best of Luck!
please helpp with this!!
Answer:
a) 83½
[tex]b)n = 4 \frac{1}{3} \: \: or \: \: n = - 4 \frac{1}{3} [/tex]
Step-by-step explanation:
Please see the attached pictures for full solution.
Help please timed homework. 50 points
Answer:
I mean that's quite an interesting question
In a student survey, forty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answers to 4 decimal places.
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 ? 11
2 ? 0.425 28
3 12 0.3 ?
What percent of students take exactly two courses?
%
Answer:
42.5%
Step-by-step explanation:
First we have to complete the table. We know that there are forty part time students so sum(f)=n=40. So, for two courses frequency is 40-11-12=17.
The relative frequency is the proportion of respective frequency and the sum of frequency. So, the missing relative frequency for 1st course is 11/40=0.275.
The missing relative frequency can also be computed as by subtracting given relative frequencies from 1 as sum of relative frequencies is 1. So, 1-0.425-0.3=0.275.
The cumulative frequency of respective class is the sum of frequency of previous classes and frequency of respective class. The missing cumulative frequency is 11+17+12 or 28+12= 40.
So, the complete table is
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 0.275 11
2 17 0.425 28
3 12 0.3 40
The percent of students takes exactly two courses=0.425*100=42.5%
POSSIBLE POINTS: 3
You go to the football game, and admission is $5 and it costs $1 per snack.
The slope is
The y-intercept is
If you have $12, you can go to the game and buy snacks
1
2
3
Next
c)
Answer:
4 snack
Step-by-step explanation:
12 - 5 = 4
The product of two consecutive integers is 19 less than their sum.
What equation represents the statement above?
Answer:
is there any choices?
Step-by-step explanation:
the digit 5 in 357 represents 1 tenth as much as the digit 5 in 465
Answer:
True
Step-by-step explanation:
You must use the decimal places and place values
the cost (in dollars)of making u cell phones is represented by C=20u+61. How many cell phones are made when the cost is $481
Answer:
U=21
Step-by-step explanation:
What they are asking for is U. They tell you that the cost is 481 so the C is 481
481=20u+61
You minus 61 from 481 which is 420.
420=20u
Then you divide 20 from 420 and you will get 21.
Claire prides herself on being a smart investor. Recently she invested some money and doubled the amount.
Feeling good about herself, she spent $4000 on a trip around the world. At the same time she reinvested
what was left. After returning from her trip, she found out that the amount invested had tripled. She
threw a party that cost $5000 and put the remaining $10000 in the bank. How much money did she have at
the start?
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Erin has $14 dollars to buy 7 lunches for the week. Write and solve an inequality that
represents the prices she can pay per lunch.
Answer:
7x [tex]\leq[/tex] $14 ; x[tex]\leq[/tex] 2
Step-by-step explanation:
Where x represents the number of lunches
Find the equation of the line in slope-intercept form. c Slope is 3/5 and (0, −2)
Answer:
y=3/5x-2
Step-by-step explanation:
The slope is already given, 3/5 so just plug it in to the base formula y=mx+b
And the coordinate (0,-2) is your y-intercept. So plug in -2 to b
Therefore y=3/5x-2
what's the answer to 2x^2 x= 10
Answer:
1
Step-by-step explanation:
URGENT
What is the distance between the two points (-5, 6) and (8,-4)?
Given parameters:
Coordinates of the two points = (-5, 6) and (8,-4)
Unknown:
Distance between the two points.
To find the distance between two points, use the expression below;
Distance ² = (x₂ - x₁)² + (y₂ - y₁)²
where;
(-5, 6) and (8,-4)
x₂ = 8 , x₁ = -5 , y₂ = -4 and y₁ = 6
Input the parameters and solve;
Distance² = (8-(-5))² + (-4 - (6))²
= 169 + 100
= 269
Distance = [tex]\sqrt269}[/tex] = 16.4
The distance between the two points is 16.4
During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by the equation s = 10│x - 4│+ 50 where s represents the sound level in decibels and x represents the number of measures of music played. Explain in words each step to find the following question:
At what number(s) measures played would the sound level be at 80 decibles?
( I need the answers, plus the steps please and thank youuu :)
Answer:
Kindly check explanation
Step-by-step explanation:
Given the equation:
s = 10│x - 4│+ 50
Where s = sound level in decibels
x = number of measures of music played
Step 1:
Subtract 50 from Both sides
s - 50 = 10│x - 4│+ 50 - 50
s - 50 = 10│x - 4│
For s = 80
80 - 50 = 10│x - 4│
30 = 10│x - 4│
Clear the absolute value sign
± 30 = 10x - 40
Hence ;
Lower value :
- 30 + 40 = 10x
10 = 10x
x = 1
Upper value :
+30 + 40 = 10x
70 = 10x
x = 7
x+3=12 solve for x. x =
Answer:
X is 9
Step-by-step explanation:
9 + 3 = 12
Let n be equal to 156% of 70. Which of the following proportions is true?
Answer:
156/100=n/70
Step-by-step explanation:
1.56/70=109.2
156/100=1.56
109.2/70=1.56
as far as im concerned 1.56 and 1.56 is equal lol
The true property is (156/100) = (n/70).
What is the percentage?The percentage is a ratio that can be expressed as a fraction of 100.
Given that n is equal to 156% of 70
n=156% of 70
n=156% × 70
n= (156/100) × 70
(n/70) = (156/100)
Or, (156/100) = (n/70)
Hence, the true property is (156/100) = (n/70).
Learn more on percentages here:
https://brainly.com/question/14979505
#SPJ2
The complete question is:
Let n be equal to 156% of 70. Which of the following proportions is true?
A. (70/100) = (165/n)
B. (156/70) = (n/100)
C. (100/70) = (165/n)
D. (156/100) = (n/70)
Please help. I dont know how to do this
Answer:
y=3x+3
Step-by-step explanation:
3 is the slope, up 3 and right 1
3 is the y intercept
I got a few 1000 more lol :')
Answer:
92
Step-by-step explanation:
Start with the first sentence. 7 crates of 12 eggs each and you need to find out how many eggs that is; that's just 12 + 12 + 12 + 12 + 12 + 12 + 12, or 12 * 7, which equals 84.
Real question is: how many do they have now? Well, if they had 8 eggs at first and they just bought 84 more, then the answer is just 8 plus the 84 that they just bought, which is 92.
Please mark as Brainliest! :)
Answer:
Your correct answer is that they now have 76 eggs left.
Step-by-step :
So, to start off, they had 7 boxes with each box with 12 eggs. So multiply 7 by 12.
7 x 12 = 84
Now, they ate 8 eggs.
84 - 8 = 76 eggs
i need help with this please help asap
Step-by-step explanation:
4^5 (-2)^9/4^8 (-2)^3
= 4^(5 - 8) (-2^(9 - 3))
= 4^-3 (-2^6)
= (-2)^6/4^3
1). (-2)^a/4^b
a = 6, b = 3
2). c/d
c = -2, d = 4
-20t – 12 < -17t -9<-20t + 6
Answer:
12
Step-by-step explanation:
Please Help Me ASAP!!!
Everything you need is in the picture attached.
43/21 as a decimal rounded to the nearest hundreth
Answer:
2.05
Step-by-step explanation:
Answer:
2.05
Step-by-step explanation:
43/21 = 2.047 ≈ 2.05
The 4 is in the hundredths place, so you would look at the right of the 4 to determine what to round it to.
If it is 0-4 keep it the same
If it is 5-9 up it by one.
Example,
5.903 = 5.90
6.389= 6.39
Given the function f(x)=3x-1, what is f(3) ? Group of answer choices:
32
9
8
5
Answer:
8
Step-by-step explanation:
just substitute it in the equation and you will find the answer
Answer:
8
Step-by-step explanation:
Step 1:
f ( x ) = 3x - 1 Function
Step 2:
f ( x ) = 3 ( 3 ) - 1 Input x
Step 3:
f ( x ) = 9 - 1 Multiply
Answer:
f ( x ) = 8
Hope This Helps :)
In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled approximately by a trigonometric function. The lowest temperature is usually around 3^\circ C3 ∘ C3, degrees, C, and the highest temperature is around 18^\circ C18 ∘ C18, degrees, C. The temperature is typically halfway between the daily high and daily low at both 10\text{ a.M.}10 a.M.10, start text, space, a, point, m, point, end text and 10\text{ p.M.}10 p.M.10, start text, space, p, point, m, point, end text, and the highest temperatures are in the afternoon.
Answer:
The answer is "[tex]\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}[/tex]"
Step-by-step explanation:
Given value:
Temp-maximum=[tex]18^{\circ}[/tex]
Temp. minimum = [tex]3^{\circ}[/tex]
It is halfway between 10 am and 10 pm to 4 am.
The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:
[tex]T = A \cos B(t-C) + D,[/tex] where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)
[tex]A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\[/tex]
[tex]= \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5[/tex]
[tex]B = \frac{2 \pi}{24}\\\\[/tex]
[tex]= \frac{\pi}{12}[/tex]
[tex]C = \text{ units translated to the right}= 4[/tex]
[tex]D = y_{min} + amplitude = units \ translated \ up\\\\[/tex]
D = 7.5 + 3 = 10.5
Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.
[tex]T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5[/tex]
Answer:
Hope this helps.
Step-by-step explanation:
The ratio of boys to girls on the cross country team is 5 to 3. How many girls are on the team if there are 25 boys on the cross country team?
Answer:
If there are 25 boys on the team, we need to find out what 25 divided by 5 is.
It is 5.
So next wed o 5x3.
That's 15.
So there are 15 girls on the team.
Hope this helps!
Answer:
the answer is 15.
Step-by-step explanation:
5x5 = 25 so you would multiply 3x5 to get 15.
what is the answer to 3 * (x+4)
Answer:
3x + 12
Step-by-step explanation:
A number problem states, “–5 times a number, minus 22 gives a result of 23.” What is the number?
Answer:
im pretty sure its -9
Step-by-step explanation:
the equation explained would look something like this...
-5x-22=23
so you would isolate the variable by first adding 22 to both sides and the dividing by -5 on both sides
-5x-22=23
+22 +22
-5x/-5=45/-5
x=-9
Two species of birds are being compared. Species A can fly 18.9 miles in 42 minutes, while species B can fly 20.3 miles in 58 minutes. Which species is slower, and at what speed can it fly?
Answer:
all i know is species A is faster, but i dont really feel like seeing witch one goes how much slower or faster
Step-by-step explanation:
ok so if you use the unit speed, you should get a higher one for species A.
Type the correct answer in the box,
One solution to a quadratic equation is x = 1 + 8i. What is the other solution?
We'll assume the quadratic equation has real coefficients
Answer:
The other solution is x=1-8i.
Step-by-step explanation:
The Complex Conjugate Root Theorem
if P(x) is a polynomial in x with real coefficients, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).
The question does not specify if the quadratic equation has real coefficients, but we will assume that.
Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.
Answer:
the answer would be x= 1-8i
Step-by-step explanation:
plato said so
Which points on the number line represent the quotients of these expressions? 12 divided by -6 and -15 divided by -3
Answer:
2,5
Step-by-step explanation:
basta isipin mo BWHAHAHAHAHHA balakadan
Answer:
Step-by-step explanation:
12 ÷(-6) = -2
-15÷(-3) = 5
What’s -4•3-6•5
And the dot is multiplication!
Answer:
-42
Step-by-step explanation:
I put it in a calculator
Answer:
-42
Step-by-step explanation:
the answer should use PEMDAS so it is -42
