Answer:
well cheese is better ;)
Step-by-step explanation:
A light bulb consumes 1800 watt-hour per day. How long does it take to consume 8550 watt-hours
Answer:
4 hours and 45 minutes
Step-by-step explanation:
8550 ÷ 1800 equals 4.75 which should translate into 4 hours and 45 minutes
Select ALL of the correct answers. COULD BE more than one answer.
Answer:
This study uses a control group
This study uses a repeated measures design
Step-by-step explanation:
Hope it help
Please mark me as brainliezt
Sorry if my answer is wrong
What is the value of 15x - 20x?
A. -35x
B. -5x
C. 5x
D. 35x
Answer:
Step-by-step explanation:
15x - 20x = -5x
answer is B
Answer:
Its b
Step-by-step explanation:
REASONING Tell whether the rates are equivalent.
75 pounds per 1.5 years
38.4 ounces per 0.75 year
Answer:
No, either convert pound to ounces or the other way around.
Step-by-step explanation:
Use 1 lb= 16 oz so 75 lb=16 x 75 =1200 oz ---> 1200 ounces per 1.5 years..
---> 1200 oz/1.5 years (1)
The second equation is 38.4 ounces per 0.75 years , will be the same as 76.8 ounces per 1.5 years.---->76.8 oz / 1.5 years (2)
So compare (1) and (2) are not equivalent....
The rates are not equivalent to each other..
What are equivalent expressions?Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.
To derive equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.
Use 1 lb= 16 oz
Thus 75 lb=16 x 75 =1200 oz
Means 1200 ounces per 1.5 years..
Now 1200 oz/1.5 years ----- (1)
The second equation is 38.4 ounces per 0.75 years which will be the same as 76.8 ounces per 1.5 years.
76.8 oz / 1.5 years ----- (2)
So compare (1) and (2) are not equivalent to each other.
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The table shows Mitch’s record for the last thirty par-3 holes he has played.
Based on this record, what is the probability that Mitch will score a 2 or 3 on the next par-3 hole?
a. 7/9
b. 3/5
c. 3/10
d. 9/50
Answer: THE ANSWER IS D
Step-by-step explanation:
BRAINLIEST FOR WHOEVER SOLVES
ameliaswan
Answer:
8/22 for the first box and 2 for the second box.
Step-by-step explanation:
Because the 2 extremes are 10/5 and 8/22, those would be the two answers.
Answer:
Step-by-step explanation:
You want to find out how sleep deprivation affects motor performance. To study this, you have sleep-deprived subjects (such as parents of newborn babies or night-shift workers) record the number of minutes they sleep each night and take a series of motor performance assessments, with 1 minute being the smallest unit on the scale. Suppose the first subject sleeps 250 minutes. Determine the real limits of 250.
Answer:
the real limits are;
Lower Real Limits = 249.5
Upper Real Limits = 250.5
Step-by-step explanation:
Given the data in the question;
1 minute being the smallest unit on the scale
so we say; 1/2 which 0.5 minutes which we will use to calculate pur real limits time;
given that; the first subject sleeps 250 minutes
so
Lower Real Limits will be;
Lower Real Limits will = 250 - 0.5 = 249.5
Also our Upper Real Limits will be;
Upper Real Limits = 250 + 0.5 = 250.5
Therefore; the real limits are;
Lower Real Limits = 249.5
Upper Real Limits = 250.5
Determine the interval(s) where f(x) = In (9x - 81) is continuous.
Answer: (9, ∞)
Step-by-step explanation:
You cant take the natural log of a negative number, and you cant take the natural log of 0. So, to find the intervals where the function is defined, set the inside of the natural to 0.
9x - 81 = 0
x = 9
The intervals where this function is continuous is from 9 --> infinity
Decrease 60kg by 40%
Answer:
36 KG
Step-by-step explanation:
This is how I did it:
60 x 0.6 = 36
1 = 100%
0.4 = 40%
but you have to decrease so
100% - 40% = 60%
60% = 0.6
What is the midpoint of the segment with endpoints (0,7) and (5,2)
Answer:
( 2.5 , 4.5 )
Step-by-step explanation:
700% of what number is 4,340?
Answer:
620
Step-by-step explanation:
100% must be the the answer so 700% must be 7 times that number.
4340÷7=620
1 r 2 (the symbol is pi) is the formula to find the area of a
Select one:
a. square
b. hexagon
O c. triangle
O d. circle
Answer:
d: circle
Step-by-step explanation:
The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.
See attached picture
Answer:
[tex]\frac{f(x+h)-f(x)}{h}[/tex][tex]=2x + h[/tex]
Step-by-step explanation:
Given
[tex]f(x)= x^2 + 2[/tex]
Required
Determine: [tex]\frac{f(x+h)-f(x)}{h}[/tex]
First, we calculate f(x + h)
[tex]f(x)= x^2 + 2[/tex]
[tex]f(x+h) = (x+h)^2+2[/tex]
[tex]f(x+h) = x^2+2xh+h^2+2[/tex]
So, we have:
[tex]\frac{f(x+h)-f(x)}{h}[/tex] [tex]= \frac{x^2 + 2xh + h^2 + 2 - x^2 - 2}{h}[/tex]
[tex]\frac{f(x+h)-f(x)}{h}[/tex][tex]= \frac{x^2 - x^2+ 2xh + h^2 + 2 - 2}{h}[/tex]
[tex]\frac{f(x+h)-f(x)}{h}[/tex] [tex]= \frac{2xh + h^2}{h}[/tex]
[tex]\frac{f(x+h)-f(x)}{h}[/tex][tex]=2x + h[/tex]
How do I answer this?
9514 1404 393
Answer:
A. (-∞, ∞)
B. (-∞, 0) U (0, ∞)
Step-by-step explanation:
A. Though the attached calculator disagrees, the value of the derivative of f(x) is actually defined at x=0. Its value is 0. There is a discontinuity in the second derivative at x=0, but both the derivative and the function are continuous there.
differentiable on (-∞, ∞)
__
B. The derivative is discontinuous at x=0, so is undefined there. The function is differentiable everywhere else.
differentiable on (-∞, 0) U (0, ∞)
_____
The graphs of f(x) and its derivative are red and dotted orange, respectively.
The graphs of g(x) and its derivative are purple and dotted blue, respectively.
There are overlaps, which is why we chose to make some graphs dotted.
Noah solved three math problems. The first problem took him 1 minute. The second problem took him 30% longer than the first problem, and the third problem took him 50% longer than the second problem. How long did it take Noah to solve all three problems?
What is the answer to 30% of 50?
Answer:
15
Step-by-step explanation:
Use the x method or cris cross
4 1/6 divided by 10
Answer:
~0.42
Step-by-step explanation:
Convert the fraction (4 1/6) to an improper fraction
25/6 = improper form
Now convert the improper fraction to a decimal
4.166666666666667
Now we can divide that by 10
4.166666666666667 ÷ 10
0.4166666666666667
And we can round that up to the nearest hundredth
4 or less, let it rest, 5 or more, let it sore
0.42
Hope this helped!
Have a supercalifragilisticexpialidocious day!
13. What is the slope of the line of best fit for the given
graph?
a) -0.3
b) 0.3
d) -3
c) 3
0
Solve the system of linear equations below, using substitution method.
8x + 9y = 36
3x + 4y = 16
0 (0,4)
хо (57.6.-47.2)
0 (4.4137, 2.9396)
O (5.6842,-0.2632)
5
Solve the system of linear equations below, using substitution method.
8x + 9y = 36
3x + 4y = 16
your answer is in attachment....
A small plane has 20 rows of seats. Each row has 4 seats.
Find the total number of seats on the plane.
How many seats are on 3 small planes?
Answer:
the total number of seats on the plane
Step-by-step explanation:
Total number of seats on a small plane is 80 and 3 small planes have 240 seats in total
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
According to the question
A small plane has rows of seats = 20
Each row have seats = 4
Total number of seats on a small plane = 20*4
= 80 seats
Therefore,
3 small planes have total seats = 3 * 80
= 240 seats
Hence, Total number of seats on a small plane is 80 and 3 small planes have 240 seats in total
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Can someone help me with this geometry question?
13.73cm^2
You can apply the same apoproach from the other question. It's the area of the square minus the area of the circle. So,
Area of the square is 8x8=64
Area of the circle is (pi)*(radius=4)^2=50.27
64-50.27=13.73cm^2
Two numbers have a sum of 7. When the smaller number is subtracted from twice the larger number, the result is 20. Which is the following is the larger number.
11
9
15
12
Which is it?
Answer:
9
Step-by-step explanation:
according to the condition it is possible to make up a system of two equations (if to suppose 'l' - the larger number and the 's' - is the smaller one):
1. 'two numbers have a sum of 7' means s+l=7;
2. 'When the smaller number is subtracted from twice the larger number, the result is 20' means 2*l-s=20.
3. the system of two equations is:
[tex]\left \{ {{s+l=7} \atop {2l-s=20}} \right. \ => \left \{ {{s=-2} \atop {l=9}} \right.[/tex]
4. the larger number is 9.
The larger number would be as follows:
[tex]9[/tex]
What are numbers?Let the two numbers (larger and smaller) be [tex]= x ; y[/tex] respectively.
[tex]x + y = 7[/tex]
So, [tex]y = 7 - x[/tex]
Given that,
The Smaller number subtracted from twice large number gives 20. Thus,
[tex]2x - y = 20[/tex]
Putting the value of [tex]y, 2x - (7 - x) = 20[/tex]
[tex]2x - 7 + x = 20[/tex]
[tex]3x - 7 = 20[/tex]
[tex]3x = 27[/tex]
[tex]x = 27 / 3[/tex]
∵ [tex]x = 9[/tex] [The larger Number]
The smaller number [tex]'y' = 7 - 9 = -2[/tex]
To learn more about 'variables' solving,' refer here:
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please help only answer if you know please
Answer:
a)Let the number of avocados that I brought be a and number of oranges be r.
b) a+r=28 ---(1)
a+2r=44 ---(2)
c) a+r=28
a=28-r ---(3)
sub (3) into (2), 28-r+2r=44
r=16
sub r=16 into (3), a=28-16
a=12
∴ I brought 12 avocados and 16 oranges.
What is angle D equal??
Un avión dispone de 24 asientos en clase A y de 62 asientos en clase B cuya venta supone un total de $15,390. Sin embargo, sólo sea han vendido 10 asientos en clase A y 40 en clase B, obteniendo un total de $8,750.
¿Cuál es precio de un asiento en cada clase? Ayuda por favor!!
Answer:HOLA I Do not speack spanish
Step-by-step explanation:
Part B
Based on your calculations in part a, did Kelvin ski twice as long without falling as anyone else in the family?
Answer:
Yes, Kevin skied twice as long as Lori without falling.
Step-by-step explanation:
Kevin's time was 223 sec and Lori's was 110 sec.
110 x 110 = 220
Since Lori's time was 110 seconds and twice that is less than Kevin's, which was 223.
Thus we have our answer:
Yes, Kevin skied twice as long as Lori did without falling.
Hope it helps!!
please answer due today
Which graph shows y = 2x - 1/2?
Answer:
Third down
Step-by-step explanation:
2x = slope
-1/2 = y-intercept
Solve for z.
6z+ 3 - 4z = 9
Answer:
z = 3
Step-by-step explanation:
Find the 15th term of the geometric sequence 1, -4, 16, ...
Answer:
Answer is 268435456
Step-by-step explanation:
use an = a × ^r n-1 to find the sequence
The 15th term of the given geometric progression sequence 1, -4, 16, ... will be 268435456.
What is geometrical progression series?A geometric progression is a sequence in which any element after the first is obtained by multiplying the previous element by a constant which is called a common ratio denoted by r.
For example, the sequence 1, 4, 16, 64,… is a geometric sequence with a common ratio of r = 4.
As per the given sequence,
1, -4, 16, ...
First term a = 1
Common ratio r = -4/1 = -4
The nth term is given as ar^(n - 1)
Therefore, the 15th term will be as,
a₁₅ = 1(-4)¹⁵⁻¹
a₁₅ = -4¹⁴ = 268435456
Hence "The 15th term of the given geometric progression sequence 1, -4, 16, ... will be 268435456".
For more information about the geometrical progression,
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