Answer:
Given f(x) = x2 + 3x – 1, find
a) f(1)
b) f(–1)
c) f(a)
d) f(x – 1)
Step-by-step explanation:
a) f(1) = (1)2 + 3(1) – 1 = 3
b) f(–1) = (–1)2 + 3(–1) – 1 = –3
c) f(a) = a2 + 3a – 1
d) f(x – 1) = (x – 1)2 + 3(x – 1) – 1
= x2 – 2x + 1 + 3x – 3 – 1 = x2 + x –3
Jade spent ⅓ of her math homework time working on word problems. What fraction of an hour did she spend working on word problems?
Answer:
If total maths hw time = 90 minutes, time spent on word problems = 1/2 hour
Step-by-step explanation:
Let the time available for maths homework be = 90 minutes. It is equal to 1.5 hour (as 1 hour = 60 minutes, 0.5 hour = 30 minutes).
1/3rd of maths homework time, ie 1/3rd of 90 minutes = 30 minutes, is used in doing word problems. These 30 minutes correspond to half (1/2 or 0.5) of an hour, as 1 hour = 30 minutes.
Jessica bought a soft drink for 2 dollars and 4 candy bars. she spent a total of 18 dollars. how much did each candy bar cost?
Answer:
4dollars
Step-by-step explanation:
i subtracted the total money spend from the soft drink
18$ - 2$ = 16$ was spent in buying the candy bars
and she bought 4 candy bars so we divide 16$ by 4 = 4$ for each candy bars
A line that is parallel to the line y=3x-8 and passes through the point (-1,6)
The equation of the parallel line is...
Answer:
y = 3x + 9
Step-by-step explanation:
If the line is parallel, that means it will have the same slope. So, the line will also have a slope of 3.
Using y = mx + b, plug in the slope and given point, and solve for b:
y = mx + b
6 = 3(-1) + b
6 = -3 + b
9 = b
Plug in the slope and b into y = mx + b
y = 3x + 9
So, the equation of the parallel line is y = 3x + 9
What is Dario's hourly salary?
Answer:
Dario's hourly salary
is $11
In the given figure
DOES ANYONE NOW About THE Incas?
i need help on this
Answer:2 inside 3 dogs 3 inside 6
Step-by-step explanation:
Rate of change (-4,6)
Answer:
The calculation for ROC is simple in that it takes the current value of a stock or index and divides it by the value from an earlier period. Subtract one and multiply the resulting number by 100 to give it a percentage representation.
Step-by-step explanation:
Tanner needs repairs for his truck. He can take it to Gary’s Garage for a service charge of $40 plus $30 per hour. He can also take it to Casey’s Car House for a service charge of $60 plus $20 an hour. At how many hours would it cost Tanner the same amount to take his truck to either garage? How much would he pay at this number of hours?
Answer:
Step-by-step explanation:
G=30t+40, C=20t+60, C=G
30t+40=20t+60, subtract 40 from each side
30t=20t+20, subtract 20t from each side
10t=20, divide each side by 10
t=2
So both garages charge the same fot two hours of work.
is this correct ??????
Answer:
no, switch the 7 and 3 :))
Answer: No
Step-by-step explanation: |-5| is 5, which is correct but |7| isn't 3, its 7, |-3| is 3 not 7 and lastly |3|+|5| is 8 so you are correct
what is the answer to this ? You have to simplify 4(- 3n - 7)
Answer:
-12n-28
Step-by-step explanation:
4(-3n-7)
first- use the distribution property (4*-3n and 4*-7)
so, -12n-28
Answer:
-12n -28
Step-by-step explanation:
4(- 3n - 7)
-12n -28
what is the ordered pair for -x-4y=-10
A coin weighs 7 ^-2 pounds. Find the either of 1000 of the coins. Round your answer to the nearest tenth.
Answer:
20.4 pounds
Step-by-step explanation:
Given that:
Weight of a coin = 7^-2 pounds
Weight of 1000 coins will be :
Weight per coin * number of coins
7^-2 * 1000
0.0204081 * 1000
= 20.408 pounds
= 20.4 pounds
When is the best time to use square roots to solve a quadratic? Choose the one BEST
answer.
A. Perfect square trinomials
B. Difference of squares
C. When there is no b term
D. When the constants are perfect squares
Answer: D, When the constants are perfect squares.
Step-by-step explanation:
the “best” method whenever the quadratic equation only contains x2 terms. That implies no presence of any x term being raised to the first power somewhere in the equation.
Hopefully this helps!
Rewrite with only sin x and cos x.
sin 3x - cos x
Answer:
sin (3 x) - cos (x)=
= sin (2x + x) - cos (x)=
= sin 2x * cos x + cos 2 x * sin x - cos x = ( using additional formulas )
= 2 sin x cos² x + ( cos² x - sin² x ) sin x - cos x =
= 2 sin x cos² x + ( 1 - sin² x - sin² x ) sin x - cos x =
= 2 sin x cos² x + ( 1 - 2 sin² x ) sin x - cos x =
= 2 sin x cos² x + sin x - 2 sin³ x - cos x
Answer: B )
Step-by-step explanation:
Find the Percent of Change: the number of animals at a shelter went from 20 to 31.
Answer:
55% change
Step-by-step explanation:
55% of 20 is 11
20 + 11 is 31
Given center C and a point P on a circle, find its equation. C(-2,7) and P (1,11)
A) (x-1)2+(y-11)2=5
B) (x+2)2+(y-7)2=5
C) (x-1)2+(y-11)2=25
D) (x+2)2+(y-7)2=25
Answer:
the only left one is the distance or radius so to find this find under square root (x2-x1)²+(y2-y1)² then you gate r=5,R²=25 so the correct answer is d
The counting principle lets you add the number of options per category to find the total number of possible outcomes. True False
Answer:
The Answer Is False
Step-by-step explanation:
Hope It Helps U
Theoretical probability
Answer:
Err... What's the question? Anyway,
Theoretical probability is probability that is determined on the basis of reasoning and that is set solely on theory.
Step-by-step explanation:
Answer:
Theoretically this can be interpreted in many different ways.
-The probabilities are endless.-
Step-by-step explanation:
^^
A rectangular cake measures 12 inches wide, 15 inches long, and 4 inches high.
If the bottom of the cake is not frosted, how much frosting will be needed?
Answer:
B. 180
Step-by-step explanation:
In two weeks, your class collected more than 380 cans of food for the annual food drive. In the first week, 145 cans were collected. How many cans c of food were collected in the second week? Write and solve an inequality.
145 + c < 380; c < 235
c + 145 > 380; c > 525
c − 145 ≥ 380; c ≥ 525
145 + c > 380; c > 235
Answer:
Step-by-step explanation:
145+c>380 subtract 145 from each side
c>235 so the answer is
145+c>380; c>235
PLZ PLZ HURRY I WILL GIVE BRIANLEST
Which inequality does this graph show?
A. 2y + 3x > 4
B. 3y + 2x > 4
C. 3x – 2y > 4
D. 2y – 3x > 4
Answer:
Choice A
Step-by-step explanation:
Solve for y
Choice A
2y + 3x > 4
y > -[tex]\frac{3}{2}[/tex]x + 2
Choice B
3y + 2x > 4
y > -x + 2
Choice C
3x – 2y > 4
y < [tex]\frac{3}{2}[/tex]x - 2
Choice D
2y – 3x > 4
y > [tex]\frac{3}{2}[/tex]x +2
Identify the mode in the data below
(Sorry I know the pic isn’t the best)
Answer:
2
Step-by-step explanation:
the mode is the number that appears the most in a table or chart
At a lunch shop, Aisha buys 2 veggie wraps and 3 apples. Her bill is $14.00. Jaime buys 3 veggie wraps and 2 apples. His bill is $16.00. How much does a veggie wrap cost? How much does an apple cost?
Answer:
veggie wrap 4 dollars and apple 2
Step-by-step explanation:
HELP ！！！！choose the correct fraction for A,B,C,D.
Step-by-step explanation:
Here, in number lines the fraction are,
A = -4/6 = -2/3
B = -3/6 = -1/2
C = 1/6
D = 5/6
A bag contains 7 red marbles, 3 blue marbles and 6 green marbles. If two
marbles are drawn out of the bag, what is the probability, to the nearest ioth
of a percent, that both marbles drawn will be red?
Answer:
42%
Step-by-step explanation:
figure probability of the first:
7+6+3=16
7/16=0.44
figure probability of the second:
6/15=0.40
find the average:
0.44+0.4=0.84
0.84/2=0.42
convert from decimal to fraction:
42%!
The solution is , 42% is the probability, to the nearest 10 th of a percent, that both marbles drawn will be red.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given that,
A bag contains 7 red marbles, 3 blue marbles and 6 green marbles. If two marbles are drawn out of the bag.
we have,
figure probability of the first:
7+6+3=16
7/16=0.44
figure probability of the second:
6/15=0.40
find the average:
0.44+0.4=0.84
0.84/2=0.42
convert from decimal to fraction:
42%
Hence, The solution is , 42% is the probability, to the nearest 10 th of a percent, that both marbles drawn will be red.
To learn more on probability click:
brainly.com/question/11234923
#SPJ2
use the grid to answer questions 3-5
pls help
Answer:
3. (6 : -8)
4. (2 : -6)
5. (7 : -6)
Step-by-step explanation:
Write as a sentence 294 added to q is equal to 112
Answer:
294+q=112
Step-by-step explanation:
If you need the awnser, it is 182. This is because 294-112=q or 182.
Someone help and please make sure the answer is right
Answer:
-10
Step-by-step explanation:
Hope this helps you!
Nathan jogged 2 /1 4 m i l e s o n M o n d a y . W e d n e s d a y h e j o g g e d 3 /1 3 m i l e s , a n d F r i d a y , h e j o g g e d 2 / 2 3 m i l e s . How far did Nathan jog altogether?
Answer: 8 1/4 miles
Step-by-step explanation:
I think your question isn't well written and should be:
Nathan jogged 2 1/4 miles on Monday. On Wednesday, he jogged 3 1/3 miles and on Friday, he jogged 2 2/3 miles. How far did Nathan jog altogether?
This will be:
= 2 1/4 + 3 1/3 + 2 2/3
= 2 3/12 + 3 4/12 + 2 8/12
= 7 15/12
= 7 + 1 3/12
= 8 3/12
= 8 1/4 miles
Please help!! asap!!!^^
Answer:
okayy where is question
Step-by-step explanation: