Answer:
f(x) = { 3, 1, -1, -3 }
Step-by-step explanation:
f(x) = −2x + 5
when
x=1
f(1) =−2 * 1 + 5 = -2 + 5 = 3
x=2
f(2) = −2 * 2 + 5 = -4 + 5 = 1
x=3
f(3) = −2 * 3 + 5 = -6 + 5 = -1
x=4
f(4) = −2 * 4 + 5 = -8 + 5 = -3
Answer:
f(x) = { 3, 1, -1, -3 }
Step-by-step explanation:
Have a great day <3
im begging for help here, if anyone knows what this would be i would appreciate it so much :(
Answer:
D.5n-9=11 Solution: n=4
Step-by-step explanation:
5n-9=11
+9 +9 add nine on both sides
5n= 20
divide 5 on both sides to get n by itself
n= 4
The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours on Monday. The frequency distribution below summarizes the results. Find the sample standard deviation. Round your answer to one decimal place.
Complete question :
The manager of a bank recorded the amount of time each customer spent
waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the standard deviation. Round your answer to one decimal place. 0-4 ,4-8,8-12,12-16,16-20,20-24 number 11,15,15,8,0,1
Answer:
4.517
Step-by-step explanation:
Given the data:
______m __ f___fx __f(m - x)²
0-4 __ 2___11__22 __ 385.51
4-8 __ 6___15__90__ 55.29
8-12 _ 10__ 15__150__64.896
12-16_ 14___8__112__295.73
16-20_18__ 0__ 0 ___0
20-24_22__1__ 22 ___198.25
Mean (x) = Σfx / Σf
Mean = (22 + 90 + 150 + 112 + 0 + 22) / (11 + 15 + 15 + 8 + 0 + 1)
= 396 / 50
= 7.92
Standard deviation :
√(385.51 + 55.29 + 64.896 + 295.73 + 0 + 198.25) / 49
√20.40155102041
= 4.517
The volumes of two similar solids are 729 m^3 and 125m^3. The surface area of a larger solid is 324 m^3. What is the surface area of the smaller solid
Answer:
100 m^2
Step-by-step explanation:
The scale factor of the volume of solids is the cube of the scale factor of linear dimensions.
The scale factor of the area of solids is the square of the scale factor of the linear dimensions.
Volume scale factor:
125/729 = (5/9)^3
Linear scale factor:
5/9
Area scale factor:
(5/9)^2 = 25/81
Proportion to find the area of the smaller one:
Let the area of the smaller one equal x.
25/81 = x/324
81x = 25 * 324
Divide both sides by 81
x = 25 * 4
x = 100
Answer: 100 m^2
. 9 gallons of gasoline cost $18.90. What is the price per gallon?
Answer:
2.1
Step-by-step explanation:
18.90 divided by 9=2.1
what is -3 divied - 1/4th
Answer:
12
Step-by-step explanation:
use keep change flip
keep -3 change the division sign to multiplication sign then flip -1/4 to -4/1
(-3)(-4)=12
pls mark as brainliest, thank u have a great day.
A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a wnding road. The time spent on the winding road was 6
hours. Find the average speed on the level road it the entire trip was 348 mies.
Answer:
285
Step-by-step explanation:
What is the approximate volume of a cone with a height of 12 in. and radius of 9 in.?
Use 3.14 to approximate pi, and express your final answer to the nearest hundredth.
Answer:
1017.88
Step-by-step explanation:
The volume of a cone is V=1/3hπr²
First, we are going to do exponents: what is 9*9? 81. So now our equation is V= 1/3h * 3.14 * 81 (Pi is 3.14, so we filled that in too.)
Now we need to find 1/3 of our height, or 1/3 * 12, which is 4. Our equation is now V= 4 * 3.14 * 81
Solve and you get 1017.88
I hope this helped, please mark Brainliest, thank you!
The cost of four brands of spray paint are listed in the table below. Which brand of spray paint costs the least per ounce?
A: Brand K (4 ounces, $3.97)
B: Brand L (6 ounces, $5.89)
C: Brand M (8 ounces, $7.29)
D: Brand N (5 ounces, $4.49)
in 8 months 55.6 gallons are used to find the unit rate
0.695 gallon/month
6.95 gallon/month
9.26 gallons / month
13.9 gallon/month
Answer:
6.95 gallon/month
Step-by-step explanation:
you have to divide
Lena owns 5 shares of a certain stock. Yesterday the total value of her shares went down by 20 dollars. What was the change in value for each share?
(b)A private club grew by 9 members each week for 18 weeks. What was the total change in the club's size?
Answer:
The change was 4 and part b is 162
Step-by-step explanation:
Answer 1: 4 dollars
Answer 2: Total club size 162
What is mathematical expression?
A mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Answer 1:
No. of shares = 5
Total value down by = 20
share value of each stock goes down by = 20/5 = 4
Answer 2:
each week 9 new members added
Total weeks = 18
Total members at the end of 18 week = 18*9 = 162
therefore, total club size = 162
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What is 458 x57 ? i need help
Answer:
26,106
Step-by-step explanation:
???? ( whoever can answer this will get mark brainliest)
Answer:
She will need 2 cans of paint
Step-by-step explanation:
Each wall is 9m2 and needs 2 coats, with 2 walls there is a total of 36m2 of wall to paint. That is greater than 32.5m2 but not greater than 65m2 so she needs 2 cans.
What is the equation of the line that is parallel to y=2x+2 but passes through the point (1,6)
Answer:
y=2x+4
Step-by-step explanation:
y=2x+2
Gradient = 2
Gradient of the line passing through point (1,6)
= 2
i.e it is parallel to line y=2x+2.
Equation of the line is given as:
y - 6 = 2(x - 1)
y - 6 = 2x -2
y = 2x -2 + 6
y = 2x + 4
Which expression is equivalent to RootIndex 3 StartRoot StartFraction 75 a Superscript 7 Baseline b Superscript 4 Baseline Over 40 a Superscript 13 Baseline c Superscript 9 Baseline EndFraction EndRoot? Assume a not-equals 0 and c not-equals 0.
StartFraction a cubed b (RootIndex 3 StartRoot 15 b squared EndRoot) Over 2 c cubed EndFraction
StartFraction b (RootIndex 3 StartRoot 15 b EndRoot) Over 2 a squared c cubed EndFraction
StartFraction a cubed b (RootIndex 3 StartRoot 15 b squared EndRoot) Over 6 c cubed EndFraction
StartFraction b (RootIndex 3 StartRoot 15 b EndRoot) Over 2 a c EndFraction
Answer:
StartFraction b (RootIndex 3 StartRoot 15 b EndRoot) Over 2 a squared c cubed EndFraction
So B.
Step-by-step explanation:
I got it right on the test
What Is The Slope Of The Line Passing Through (-3, 5) and (5, -3)?
A. Slope = -1
B. Slope = 0
C. Slope = 1
D. No Slope
Answer:
Answer choice A. Slope -1
Step-by-step explanation:
If we plot the two points on a graph we can see that the points go from left to right, starting from a higher point to a lower point. This means the slope is negative. B and D are the same choice, but just in different words, and 0 cannot be positive or negative. and C is positive, not negative. So it is A. I hope this helps, and I hope it's not wrong, but I don't think it is.
Write the mixed number 8 4/5 as an improper fraction.
The mixed number can be written as an improper fraction of 44/5 after simplifying the answer is 44/5.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
The mixed number is 8 4/5
To write the mixed number as an improper fraction:
= 8 + 4/5
Take LCM as 5
LCM can be defined as the common number of two integers, which is the lowest number that is a multiple of two or more numbers. The full name of LCM is the least common multiple.
= (8x5 + 4)/5
= (40 + 4)/5
= 44/5
Thus, the mixed number can be written as an improper fraction of 44/5 after simplifying the answer is 44/5.
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Will give BRAINLEIST (idk how to spell it)
What is an equation for the line parallel to y=-3x+2 that passes through
(3,1)
Answer:
-7
Step-by-step explanation:
A box of chocolates contains 18 chocolate squares. Ten of the squares are milk chocolate, 5 are dark chocolate, and 3 are white chocolate. If Christina randomly chooses a chocolate out of the box, what is the probability of her choosing a white chocolate square (fractions)
Answer:
try 3/26
Step-by-step explanation:
write and solve an equation to find the measure of angle x
1,711,239 rounded to the nearest hundred?
Answer:
1,711,200
Step-by-step explanation:
Norm spent $59 on games he paid a total interest fee of $8. and $3 per game he played. how many games did he play
I HAVE TO TURN THIS IN 5 MINS, PLEASE HELP ME !!!!!
The question is in the box below next to the blue x
Answer:
y = -1/3 x + 7
y = -1/3 x + 6
y = -1/3 x + 4
Step-by-step explanation:
All of these are parallel to the line created on the graph
Answer:
y = -1/3 x + 7
y = -1/3 x + 6
y = -1/3 x + 4
(please tell me if I'm wrong or if I missed something)
GIVING BRAINLIST PLEASE HELP!!
In the figure at the right, if PQ is perpendicular to QR,
then a + b + c + d =?
A) 180°
B) 225°
C) 270°
D) 360°
The correct answer is 270°
a + b + c + d = 270°
Given,
In the figure at the right, if PQ is perpendicular to QR.
We need to find a + b + c + d.
What is the sum of the angles in a right triangle?The sum of the angles in a right triangle must be 180 degrees.
We have,
In right-triangle PQR
PQ is perpendicular to QR.
So,
∠PQR = 90 degrees.
∠QPR = ∠QRP = 45 degrees.
We see that,
QS is perpendicular to PR
So,
∠QSP = b = 90 degrees
∠QSR = c = 90 degrees
Now,
From right-triangle QSP and right-triangle QSR.
We have,
QSP = b = 90 degrees
QPS = a = 45 degrees
QSR = c = 90 degrees
QRS = d = 45 degrees
Find a + b + c + d.
= 45 + 90 + 90 + 45
= 270 degrees
Thus the correct answer is 270°
a + b + c + d = 270°
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Olivia used 22 inches of ribbon as a border around her scrapbook
cover. Which of these rectangles could be the shape of her
scrapbook cover?
Answer:
The shape is Rectangle
Answer:
I think its 7 inches
and 3 inches
Step-by-step explanation:
Which one?
A. B. C. Or D?
Answer:
B - {5, -5}
Step-by-step explanation:
Use the quadratic formula.
Admission to a play costs $25. A season pass costs $180. a. Write an inequality that represents the numbers x of plays you must attend for the season to be a better deal.
Answer:
y=25x+180
Step-by-step explanation:
Darrell writes 15 text messages in 5 minutes. What is the minutely rate?
As an estimation we are told 5 miles is 8 km.
Convert 52 km to miles.
miles
Answer:
32.3113
Step-by-step explanation:
Is 1/10 less than or greater than .09
Answer: greater than
Step-by-step explanation:
0.1>0.09
Answer:
It is greater
Step-by-step explanation:
1/10 is equivalent to 0.1
Write the product as a power: x^2x^5x^4 Please 20 points!
Answer:
The correct answer is x¹¹
from the law of indices