5. A function is given below.
f(x) = 3x2 - x + 6
What is f(2)?
2
Answer: 10
Step-by-step explanation:
f(x)= 3 (2) - x + 6
f(x)= 6 - 2 + 6
f(x)= 4 + 6
f(x) = 10
Keiala drives 324 miles in 4 hours. How many miles does she drive each hour?
She drove an average of 81 miles per hour.
324/4 = 81
I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so all I need are the a, b, and c values. for this problem, I am required to show any equations used to solve for the variable. hope you can help me, thanks!!
Answer:
x = 14
Step-by-step explanation:
Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.
The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:
138 = (376 -23x) +(x^2 -8x)
Subtracting 138 and collecting terms we have ...
x^2 -31x +238 = 0
For your calculator, a=1, b=-31, c=238.
__
Additional comment
You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.
For x=14, the marked angles are A = 84°, C = 54°.
HELLLOOOO THIS IS DUE HELP
Answer:
RS=13
Step-by-step explanation:
RS+ST=RT
2w+1+w-1=18
3w=18
w=6
RS= 2w+1= 2(6)+1= 12+1= 13
14% of 81 is what number?
Answer:
11.34
Step-by-step explanation:
14% of 81 = [tex]\frac{14}{100}[/tex] × [tex]\frac{81}{1}[/tex] [tex]\frac{14}{100}[/tex] × [tex]\frac{81}{1} = \frac{1134}{100}[/tex] 1134/100 = 11.34I hope this helps!
Solve the equation for x. 7- x= 12
From his comments in Act 1, it can be inferred that Parris’s concern for his daughter is primarily based on his:
A. Anxiety about his reputation
B. Fear for the fate of her soul
C. Great love for his only child
D. Terror of the devil
Levi bought 14 chicken wings for $22.40 how much would it cost for 12 wings
Answer:
x =19.20
Step-by-step explanation:
We can use ratios to solve
14 wings 12 wings
------------- = ---------------
22.40 x
Using cross products
14x = 22.40 * 12
14x =268.8
Divide each side by 14
14x/14 = 268.8/14
x =19.20
Factor 12z^2 - 6z + 42
Answer:
6(2z^2-z+7)
Step-by-step explanation:
The cost for a pack of 18 pens is $3.24 Find the unit price in dollars per pen. If necessary, round your answer to the nearest cent.
Answer:
Each pen cost 0.18 cents
Step-by-step explanation:
3.24/18=0.18
1. Point M is on PQ, PM has a length of 7 units, and point N is the midpoint of MQ. If the length of NQ
is 4 units, how long is PQ?
PA
A 3 units
B. 11 units
C. 15 units
D. 18 units
Answer:
C. 15 units
Step-by-step explanation:
PM = 7 units
p..............M..........N............Q
7 unit 4 unit
NQ = 4 units
Given that
N is midpoint of MQ
it means N divides MQ into two equal parts
thus
MN = NQ = 4 units
now
we have to find length of PQ
p..............M..........N............Q
7 unit 4 units 4 unit
PQ = PM + MN + NQ
PQ = 7 units + 4 units + 4 units = 15 units
thus, correct answer is option c 15 units
Answer:
15 units
Step-by-step explanation:
PLEASE HELP .. At the beginning of the school year, the number of students in the band was the same as the number of students in the choir. Throughout the school year, the number of students in the band decreased by 8, and the number of students in the choir decreased by 4. At the end of the school year, the number of students in the choir was 25% more than the number of students in the band. How many students were in the band at the beginning of the school year?
1. -9n + 1 = -80
2. 144 = 144 = -12(m + 5)
3. -243 = -9(10 + r)
4. -10 = -10 + 7x
5. 4 - 7m = - 66
6. 2(y – 3) = −12
7. 16 = 2(1 + 7a)
8. 3 + 5r = −47
9. −10x + 6 = −74
With work please :) Please and ty
Answer:
1. n = 9
2. m = - 17
3. r = 17
4. x = 0
5. m = 10
6. y = -3
7. a = 1
8. r = -10
9. x = 8
Step-by-step explanation:
A dozen donuts cost $24. How much does one donut cost?
Answer:
Each donut will cost $2.
Step-by-step explanation:
A dozen of donuts = 12 donuts
$24 ÷ 12 = $2
True or False? In reference to different sampling methods, systematic sampling includes the steps: list the members of the population; use simple random sampling to select a starting point in the population; let k = (number of individuals in the population)/(number of individuals needed in the sample); choose every kth individual in the list starting with the one that was randomly selected.
Answer:
True
Step-by-step explanation:
In the simple random sampling every individual in the population has an equal chance to be selected in the sample. Systematic sampling is a probability sampling in which selection of elements is made from order frame. These samples are selected based on intervals of the population.
-->A missile is fired straight into the air from a military
installation. The missile's height (in feet) is given by the formula
h(x) = -16x2 + 400x + 100.
42 m
***remember to put the units ***
ghts head.
1. How high is the missile after 4.5 seconds?
54 m
2. At what time will the missile reach its maximum height?
x 2
3. What is the maximum height the missile will reach?
gbadgerlxm ih
Reason - WE...
Remixes)
4. When will the missile be 2500 feet above the ground?
3h
5. When will the missile reach its target (on the ground)?
ve in october
playlists
1
6 h
Next >
Answer:
answer is 8 hours landing
For the function f(x) = 4x – 6, find x if f(x) = 22
Answer:
x=7
Step-by-step explanation:
A 2-quart carton of orange juice costs $7.28. What is the price per cup?
What is the the price per cup
Answer:
.95 per cup
Step-by-step explanation:
There are 4 cups per quart.
But this is 2 quarts so we are using 8.
divide 7.28/8 is .9475
Sylvia set a treadmill for 38 minutes, and so far she has run 61% of the minutes
Which is the best estimate for the number of minutes Sylvia has run so far?
O 18 minutes
O 21 minutes
O 24 minutes
O 28 minutes
Answer:
C. 24 minutes
Step-by-step explanation:
3/4 (m - 500) = 8000 + 4000
Answer:
m= 16500
Step-by-step explanation:
You're welcome :)
Put these numbers in ascending order, smallest first.
0.56 0.506 0.65 0.605
Answer:
0.506; 0.56; 0.605; 0.65
Step-by-step explanation:
0.56 > 0.506
0.65 > 0.605
I hope this helps :)
Answer:
0.56,0.65,0.506,0.605
hope you like the answer
please mark the answer as brainliest
A team is playing a game and currently has 43 points. If they lose 56 points and then gain 13 points, what will their score be? Write an expression that models this situation and evaluate the expression.
Answer:
(43 - 56) + 13 = 0 points
Step-by-step explanation:
We start with 43 points and loose 56 -- 43-56
then, 13 points are gained = (43 - 56) + 13
simplify and solve:
-13 + 13 = 0
*Note: you can write the expression without the brackets
HELP ME PLEADE I NEEDDDD HELPP
Step-by-step explanation:
I hope this helps, happy learning!!
Is the relationship proportional
12. The perimeter of a rectangle is 50 feet. The width is 5 less than the
length. What are the dimensions of the rectangle? (Write your answer as
Length, Width)
Step-by-step explanation:
Length = x
Width = (x-5)
Perimeter = 2 lengths + 2 widths
50 ft = x + x + (x-5) + (x-5)
50 ft = 4x - 10
60 ft = 4x
15 ft = x
length = x = 15 ft
width = (x-5) = (15 -5) = 10 ft
dimensions = length × width
= 15 ft × 10 ft
if you wanna check,
50 ft = x + x + (x-5) + (x-5)
50 ft = 15 + 15 + (15-5) + (15-5)
50 ft = 30 +(10+10)
50 ft = 30 + 20
50 ft = 50
Who can help me find the slope? It’s due soon
Show work pls What is the equation in slope-intercept form of the line that passes through the point (2, -2) and is perpendicular to the line represented by
y=2/5x +2 ?
Answer:
Step-by-step explanation:
the slope-International cept frome y= mx + b was where m is the slope and b y-intercept
y=mx +b
m= -2/5
b=2
slope is :2/5
y-intercept is :2
x. y
0. 2
1 8/5
Answer:
Step-by-step explanation:
perp. -5/2
y + 2 = -5/2(x - 2)
y + 2 = -5/2x + 5
y = -5/2x + 3
Cindy's mom only allows her to play video games for3/4 of an hour. One day, she played a video game for 1/3 of an hour in the morning. How long can she play video games that afternoon?
Answer:
5/12 of an hour(25 min)
Step-by-step explanation:
3/4-1/3= 9/12-4/12=5/12
5/12*60min=25 min
Which number line can be used to find the distance between (4, –1) and (8, –1)
Answer:
The distance between the two points is 4
Step-by-step explanation:
(8, -1) - (4, -1) is 4, so I’d say the answer is four.
Answer:
4
Step-by-step explanation:
10y=10y
what is the property of equality
Answer: Reflexive property of equality
This property says that any expression is equal to itself.
The reflexive property of congruence is a similar property, but it deals with congruences.
Answer:
The property will equal itself
Step-by-step explanation: