Answer:
The answer is 8a-28b+15c
Step-by-step explanation:
Help fast
Let r = ⟨5, –1⟩, s = ⟨6, 0⟩, and t = ⟨–1, –3⟩. Aaron incorrectly determined 2r + 4s – 7t as ⟨41, –23⟩. Review his calculations.
2r + 4s – 7t
2⟨5, –1⟩ + 4⟨6, 0⟩ – 7⟨–1, –3⟩
⟨10, –2⟩ + ⟨24, 0⟩ + ⟨7, –21⟩
⟨41, –23⟩
What mistake did Aaron make?
He added ⟨10, –2⟩ + ⟨24, 0⟩ + ⟨7, –21⟩ incorrectly.
He should have subtracted ⟨7, –21⟩ rather than add.
He did not correctly distribute 4 to both components of s.
He did not correctly distribute the negative when subtracting 7t.
Answer:
I got D.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I said so
In an experiment, the variable that is manipulated is called the?
Measurement variable
Explanatory variable
Response variable
Confounding variable
Answer:
Explanatory Variable is the right answer it is the variaable being manipulated and observed.
Step-by-step explanation:
Which is greater 14/19 or 74%
Answer:
74% is greater
Explanation:
14/19 as a percent is 73%
74% > 73%
Factor −6
out of −18a−30 Please I’m really frustrated
Answer:
-6(3a + 5)
Step-by-step explanation:
Factoring -6 from 18a, you will be left with 3a because -6× 3a will give you 18a
Also factoring -6 from 30, you will be left with 5 because -6 ×5 = -30.
so -18a -30
-6( 3a + 5)
PLEASE HELP I’M GIVING 15 POINTS
Sorry but I don't see any pictureessss--
What am I supposed to be answering??
Welp-
Sawarasenai kimi wa shoujo na no?~
What is the value of fraction x plus z plus y over, y, end fraction, when x equals 7, y equals minus 5, and z equals square root of 9 ?
How many terms are in the expression below?
-4x + 7 + 2x + 10
Answer:
3
Step-by-step explanation:
what is 0.716 divided by 5?
Chip was overdrawn at the bank his bank balance was -$34 then he deposited $54 what is his bank balance now
Answer:
Its $20
Step-by-step explanation:
I know it might seem I am lying but I am not just trust me or the answer above me or maybe I think below me.
A music company offers lessons. They charge a registration fee of $30 and then $40 per lesson The equation y 40x + 30 represents the total cost y of x lessons. What is the y-intercept and what does it represent in the context of the problem?
Answer:
THe y intercept is 30 and it represents the registration fee
Step-by-step explanation:
Christopher is hanging Christmas lights along the perimeter of his house by using his 15 foot ladder. The base of the ladder is placed 4 feet away from the base of his house. How far up the house does his ladder reach?
Answer:
14.45 feet
Step-by-step explanation:
The set up is a right angled triangle;
The length of the ladder = hypotenuse = 15foot
The base of the ladder is the adjacent = 4feet
The height of th house is the opposite = x
Using the pythagoras theorem;
hyp² = opp² + adj²
15² = opp²+4²
opp² = 15²- 4²
opp² = 225 - 16
opp² = 209
opp = 14.45feet
Hence the ladder reaches 14.45 feet up the house
what is the answer to this radical equation
[tex]\sqrt{x + 13=7}[/tex]
Answer:
x = 36
Step-by-step explanation:
Given
[tex]\sqrt{x+13}[/tex] = 7 ( square both sides )
([tex]\sqrt{x+13}[/tex] )² = 7²
x + 13 = 49 ( subtract 13 from both sides )
x = 36
[tex]\sqrt{x+13}=7\\[/tex]
To solve the radical equation, completing the square all whole equation.
[tex](\sqrt{x+13})^2=7^2\\[/tex]
As defined, [tex](\sqrt{x})^2 =|x|[/tex]
Therefore, [tex](\sqrt{x+13})^2=|x+13|=x+13[/tex] (Although Absolute Function gives 2 conditions, however - domain of radical function must be greater than or equal to 0. Meaning x < 0 for another condition doesn't apply.)
[tex]x+13=49\\x=49-13[/tex]
Move 13 to subtract.
[tex]x=36[/tex]
Therefore, the answer is x = 36.
A gardener can trim a square lawn of side 50 metres in 4 hours. At the same rate, how long will it take him to trim a square lawn of side 25 metres?
A)1 hour
B)2 hours
C)2 hours 30 minutes
D)3 hours
Answer:
2 hours
Step-by-step explanation:
50 metres / 4 hours = 25 metres / x hours
cross multiply both sides
50x = 25(4)
50x = 100
divide 50 both side
x = 100/50
x = 2 hours
(umm can anyone help me please) I’ll give brainlist <3
Answer:
12
Step-by-step explanation:
8 times 1.5
Estimate 5,860÷2.1≈
i really need help on it.
Answer: it 2790
Step-by-step explanation:
The value of 5,860÷2.1 is 2790.
What is division?
In easy phrases, the division may be described because of the splitting of a massive institution into smaller companies such that every institution may have the same number of items. it's far an operation used for identical grouping and the same sharing in math.
What are the terminologies used in the division?dividend, divisor, quotient remainder.Learn more about division here: https://brainly.com/question/25289437
#SPJ2
What is a formula for the nth term of the given sequence?
-3,-8, -13...
Answer:the answer is -43
Step-by-step explanation: it’s going down by five each time you have the first 3 already so subtract 5 6 more times
Answer:
an = 7−5 (n+1)
A cake recipe requires 4 and one-half cups of flour to make 1 cake. How many cakes can be made by a baker who has 16 cups of flour?
A. 3
B. 4
C. 40
D. 72
Answer:
3 cakes
Step-by-step explanation:
Answer:
3.
Step-by-step explanation:
The real answer is 3.8 but since you cannot make .8 of a cake the answer is 3.
PLEASE HELP
You are taking a 3 question true/false quiz. What is the probability that you will get all 3 answers right? (list your answer as a fraction)
Answer:
whatt is that the question
Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration. ... In this example, the solute cannot diffuse through the membrane, but the water can. Water has a concentration gradient in this system.!!!!!!!!!!!!!!!!!!!!!:D!!!!!!!!!!!!!
50 POINTS An airplane is traveling at a speed of 240 miles/hour with a bearing of 110°. The wind velocity is 56 miles/hour at a bearing of 325°. What are the plane's actual speed and direction angle? (hint: the direction angle is measured from the positive x-axis in a counter-clockwise direction)
A.
The speed is 179.82 miles/hour, and the direction angle is 100.60°.
B.
The speed is 179.82 miles/hour, and the direction angle is 349.40°.
C.
The speed is 196.77 miles/hour, and the direction angle is 115.60°.
D.
The speed is 196.77 miles/hour, and the direction angle is 349.40°.
Answer:
the speed is 179.82 miles/hour .and the direction angle is 100.60
A tank full of water is leaking at a constant rate for 15 minutes. The equation
y=-8x+ 500
describes the amount of water in the tank, where y is the number of liters and
xis the number of minutes that has elapsed since the tank started to leak.
Which statement is true?
A. There were 8 liters in the tank when the leak started, and it is decreasing by 500 liters per minute.
B. There were 8 liters in the tank when the leak started, and it is increasing by 500 liters per minute.
C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.
D. There were 500 liters in the tank after 15 minutes, and it is
decreasina bv 8 liters per minute.
Answer:
C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.
Step-by-step explanation:
-8x is the rate of the leak and 500 is the initial value for water in the tank.
slope =-5, y-intercept =-2
Answer:
y = -5x - 2
Step-by-step explanation:
y = mx + b
m = -5
b = -2
Step-by-step explanation:
I am not completely sure what your question is, but if you want to write an equation, you can just plug in the values for m and b to get y=-5x-2. If you wish to graph it, start at (0,-2) because that is your y-intercept. Next, move up 5 units and to the left 1 unit since the slope is negative. Now you have the point (-1,3). Connect the dots to get the graph.
help i did the first part and id.k the rest.....
Answer:
w=6x+1.25
Step-by-step explanation:
Solve using graphing substitution or elimination in the picture
Answer:
1) 18 quarters and 30 nickels2) 8 quarters and 12 nickelsStep-by-step explanation:
1) Let quarters be x and nickels be y.
Equations based on given, 48 coins, total of $6 = 600c:
x + y = 4825x + 5y = 600Substitute y in the second equation, y = 48 - x
25x + 5(48 - x) = 60025x + 240 - 5x = 60020x = 360x = 18Then value of y is:
y = 48 - 18 = 302) Similarly to problem 1.
x + y = 2025x + 5y = 260Substitution: y= 20 - x
25x + 5(20 - x) = 26025x + 100 - 5x = 26020x = 160x = 8Then finding y:
y = 20 - 8 = 12ALREADY LATE PLS HELP!!!
Answer:
36 ounces
Step-by-step explanation:
9 x 4 = 36
a scientist is running a simulation of a hypothetical city since she wants to explore its environmental impact over time the city's population is increasing 15 percent every year and there are currently 57,000 people what will the population be in 12 years?
Answer:
203,549 !!!
Step-by-step explanation:
4 ,1/4 ,10 ,40
please help me :((((
Answer: 1/4 (0.25)
I hope this helps, and Happy Holidays! :)
help please! im about to meet with my teacher soon so please help ASAP!!!!!!
Answer:
C AND D
HOPE IT HEPS
ITS EASY
a company makes a cone-shaped container with a height of 15 in. The area of its base is about 78.8 in.2 Approximately what is the volume if the container?
Answer:
Approximately the volume of cone-shaped container is 393 in³.
Step-by-step explanation:
Need help please!!!!!
Answer:
0 or 5/12
Step-by-step explanation:
with everything subtracted its 0 but with only subtracting 1/6 its 5/12
If y=32 when x=8, find y when x=30.