Answer:
there are 2 Magnesium and Nitrogen
Step-by-step explanation:
A roller coaster is going down the slope and the speed is 6m/s . 10 seconds later it has reached the bottom of the slope with a speed of 35m/s. what is the acceleration
Answer:
The acceleration is 2.9m/s^2
Step-by-step explanation:
Given
[tex]Initial\ Speed\ (u) = 6m/s[/tex]
[tex]Final\ Speed\ (v) = 35m/s[/tex]
[tex]Time\ (t) = 10s[/tex]
Required
Determine the acceleration
This question will be answered using Newton's first equation of motion.
[tex]v = u + at[/tex]
Substitute values for v, u and t
[tex]35 = 6 + 10 * a[/tex]
[tex]35 = 6 + 10 a[/tex]
Collect Like Terms
[tex]10a = 35-6[/tex]
[tex]10a = 29[/tex]
Solve for a
[tex]a = 29/10[/tex]
[tex]a = 2.9[/tex]
Hence, the acceleration is 2.9m/s^2
What is y = -1/3x - 9
Answer:
Step-by-step explanation:
Use the slope-intercept form
y=mx+b
to find the slope m and y-intercept b.
Slope: −13
y-intercept: (0,−9)
Which of the following are most likely to lead to a narrow confidence interval? Homework Help: 5DD. Changes in confidence interval based on changes in standard deviation or sample size (Links to an external site.) (DOCX)
Answer:
C
Step-by-step explanation:
11. MONEY You earn 8x + 7y dollars for working x hours at a restaurant and y hours at a bus
station. How much do you earn for working 12 hours at the restaurant and 16 hours at the bus
station?
Answer:
$208
Step-by-step explanation:
Total amount earned is given as:= 8x + 7y
The number of hours worked at a restaurant = x hours
The number of hours worked at a bus
station = y hours
How much do you earn for working 12 hours at the restaurant and 16 hours at the bus station?
= 8(12) + 7(16)
=96 + 112
= $208
Will mark as brainliest if correct!
Answer:
the answer is A
Step-by-step explanation:
48/50 x 100% = 96% of student wearing tennis shoes
100% - 96% = 4% students not wearing tennis shoes
2895÷229=? write your answer as a whole number and remainder
Answer:
the answer is 12.6419214
Choose the solutions to the quadratic equation
x2 - 8x - 9 = 0.
-21
ex? - 8x = 9 to
-1
9
29
DONE
I need help on this problem. Not good with word problems
Answer:
the one where your mouse is at
Step-by-step explanation:
first one
Answer:
2f + 10 = 20
Step-by-step explanation:
If he wants to give two candy bars to each friend, then each friend is worth 2f.
He wants to have 10 left over, so 10 + 2f must be equal to 20. In other words 2f = 20 - 10, which means 2f + 10 = 20.
I hope this makes sense.
The discount price of a hat is $18. What is the regular price? $
PLZ HURRY!!!!!
Pls with right answer
Answer:
$2,000
Step-by-step explanation:
They already raised
$5358
$2834
$4132
Total: $12,324
They need $14,000
-$12,324 =$1,676 is how much more they need
$2,000 more.....round 1676 to 2000
(79,35+7,32) x 42,2-95,3
Answer:
3562.174
Step-by-step explanation:
happy thanksgiving
the highest temperture ever recorded in continent was 45 celcius and lowest was-55 C what are corressponding tempurtures in degrees fahenheight? highest temperture was _ F
Answer:
113°F is the highest temperature and -67° is the lowest temperature.
Step-by-step explanation:
(45°C × 9/5) + 32 = 113°F
(-55°C × 9/5) + 32 = -67°F
After living in his house for 15 years, a man sold it for Rs. 7,000 profit and purchased a new
one for Rs. 1,000 more than twice the selling price of his old one. If the new house cost 3 times
the original price of the old one, what did he pay for each?
please answer it asap. thanks in advance:)
Answer:
He paid 5,000 for the old home, which was the original price of it.
And he paid 15,000 for the new home.
Step-by-step explanation
Twice the selling price of his old one, the selling price was 7,000
7,000 * 2 = 14000.
14000 + 1000 = 15000.
15,000 is three times more than he originally paid for his old home.
n Purchased a new one for 1,000 more than twice the selling price.
is y = -x + 5 non-linear or linear
Answer:
It's linear
Step-by-step explanation:
Linear equations have no exponents higher than a 1, which is the case for this equation cause if there's no exponent it's cause it's just a 1. Non-linear has a exponent higher than a 1, ex. [tex]x^{2}[/tex]
find questionsToday, everything at a store is on sale. The store offers a 20% discount.
a) The regular price of a T-shirt is $18. What is the discount price? $
3.6
b) If the regular price of an item is x dollars, what is the discount price in dollars? Write an expression. $
3.28
c) The discount price of a hat is $18. What is the regular price? $
Answer a is 14.40 the discount price is 14.40
Which type of cloud is mostly made up of ice crystals? A. Altostratus B. Cirrus C. Cumulus D. Stratus
I know not math But please help
Answer:
The answer is B
Step-by-step explanation:
look it up on google.
Answer:
The answer is B
Mostly its of B but some clouds are also made up of cmulus(option C)
PLEASE HELPPP
due tonighttt
Answer:
no it is not a function
domain: -4, 0, 6
range: 12, 18, 40
Find the slope of the line that passes through the points (1.9) and (2, 5).
AV
Answer:
-2 is the slope
Step-by-step explanation:
Slope=Rise/Run=(y2-y1)/(x2-x1)=(5-9)/(2-1)=-4/2=-2, therefore the slope is -2
IL Directions: Encircle the letter of the correct answer.
1. When you add the decimal numbers 0.25, 0.033 and 1.78 the result is ?
A. 0.263
B. 0.0263
C. 2.063
D.2.2063
2. What is the difference when 43.67 is subtracted from 125.5?
A. 81.83
B. 81.17
C. 81.87
D. 81.57
3. Valerie, Gianna and Candice went to school clinic to find out their weights. Valerie's weight is 28.58
kilograms, Gianna's weight is 30.55 kilograms and Candice's weight is 25.48 kilograms. What is the total
weight of the three pupils?
A. 84.61 kilograms B. 84.16 kilograms C. 59.13 kilograms D. 54.06 kilograms
4. Keziah spent P24.85 for sandwich and P11.20 for juice. How much change did he receive if she gave the
vendor P100?
A. P 63.05
B. P 63.95
CP 73.05
D.P 73.95
5. At 6:00 in the morning, the temperature was 23.8 °C. At 12:00 noon, the temperature rose by 5.7°C. What
was the temperature at 12:00 noon?
A. 29.5 °C
B. 18.1 °C
C. 33.5 °C
D. 35.5 °C
Answer:
The answers are as follows:
1 . Option C: 2.063
2. Option A: 81.83
3. Option A: 84.61 kilograms
4. Option B: P63.95
5. Option A: 29.5°C
Step-by-step explanation:
Lets look at the questions one by one.
1. When you add the decimal numbers 0.25, 0.033 and 1.78 the result is ?
The question simply requires adding the three quantities.
The result is 2.063
Hence, Option C is correct.
2. What is the difference when 43.67 is subtracted from 125.5?
Subtracting 43.67 from 125.5, we get
125.5 - 43.67 = 81.83
Hence,
Option A is correct
3. Valerie, Gianna and Candice went to school clinic to find out their weights. Valerie's weight is 28.58 kilograms, Gianna's weight is 30.55 kilograms and Candice's weight is 25.48 kilograms. What is the total weight of the three pupils?
Adding all the weights
28.58+30.55+25.48 = 84.61
Hence, Option A is correct.
4. Keziah spent P24.85 for sandwich and P11.20 for juice. How much change did he receive if she gave the vendor P100?
For this first we have to calculate the total cost
24.85+11.20 = 36.05
Now to find the change he will get
Subtracting total expense from 100
100-36.05 = 63.95
Hence, Option B is the correct answer.
5. At 6:00 in the morning, the temperature was 23.8 °C. At 12:00 noon, the temperature rose by 5.7°C. What was the temperature at 12:00 noon?
The sum of temperature at 6:00 and the rise will tell us the temperature at 12:00
So,
23.8+5.7 = 29.5
Hence,
Option A is correct
The answers are as follows:
1 . Option C: 2.063
2. Option A: 81.83
3. Option A: 84.61 kilograms
4. Option B: P63.95
5. Option A: 29.5°C
The subset of the sample space probability experiment
Step-by-step explanation:
The sample space of a random experiment is the collection of all possible outcomes. An event associated with a random experiment is a subset of the sample space. The probability of any outcome is a number between 0 and 1. The probabilities of all the outcomes add up to 1.
What about this one I kinda don’t get it
Display the graph of y=2+1/x
Answer:
Step-by-step explanation:
Please help me it due today at 11:59pm please help me will mark the brainiest please
Answer:
y = 69
Step-by-step explanation:
start with the distributive property:
5/9 * y and 5/9 * 3
and now you have: 5/9y + 15/9 = 40
and we have to isolate y so subtract 15/9 from both sides:
5/9y + 15/9 = 40
- 15/9 -15/9
and now you have 5/9y = 345/9
and now divide both sides by 5/9 so: 5/9y divided by 5/9 = y
and 345/9 divided by 5/9 = 345/5 and lets simplify....
y= 69
hope this helps luv
Please help me!!!!!!!
Answer:
D) 5 miles to 1 hour.
Step-by-step explanation:
If each small box is 1 mile you can count the boxes to line up with the 1 hour graph. Hence, 5 boxes to 1 hour box equals 5 miles to the hour.
Answer:
D.)5 miles to 1 hour
DROP AN ANSWERRRR!!!!!
Answer:
D
Step-by-step explanation:
What is the volume of the following rectangular prism?
Answer:
we kinda need to see the prism
Answer:
what is the prisim
Step-by-step explanation:
ed
A running track has two straight sides with length 130 m and two semicircle
ends with radius 40 m. It takes Kat 20 seconds to jog 80 m. How long would
it take her to jog around the track 42 times? Give your answer in hours and
minutes, to the nearest minute.
40 m
130 m
Answer:
1 hour 29 minutes and 29 seconds
Step-by-step explanation:
We need to find the circumference of the two semicircles of the track (which forms a full circle of radius 40m):
pi×40×2 = 80pi
The total length of the track to be travelled would be:
(80pi+130+130) × 42 = (80pi+260) ×42
= 21 476m (Rounded to 5 s.f.)
80m/20s
1s = 80÷20
= 4m
For every 1 second, Kat travels 4m.
Total Time taken:
21 476÷4 = 5369 seconds
= 1 hour 29 minutes and 29 seconds
Pls need answer fast
Answer:
B
Step-by-step explanation:
The answer is B
A mixture of purple paint contains 8 teaspoons of red paint and 12 teaspoons of blue paint. To make the same shade of purple paint using 36 teaspoons of blue paint, how much red paint would you need?
Answer:
24 teaspoons of red paint would be needed.
Step-by-step explanation:
Given that the initial mixture contains 8 teaspoons of red paint and 12 teaspoons of blue paint, this mixture contains a total of 20 units of paint, of which 8 are red, that is, 8 out of 20. Therefore, the proportion of red paint is 40%, while the proportion of blue paint is 60% remaining.
Therefore, in the case of making the same mixture (with the same proportion) using 36 teaspoons of blue paint, the necessary amount of red paint is determined through the following calculation:
60 = 36
40 = X
((40 x 36) / 60) = X
1,440 = 60 = X
24 = X
Thus, 24 teaspoons of red paint would be needed.
i need help???? ???
Answer:
Upper Quartile
Step-by-step explanation:
The third quartile (Q3) is the middle value between the median and the highest value of the data set. It is also known as the upper quartile or the 75th empirical quartile and 75% of the data lies below this point.