Answer:
Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so you can write large numbers using less digits. An example of scientific notation is when you write 4 x 10³ for 4,000. noun. 7. 0.
Step-by-step explanation:
Mr green Drove 100 mies in 2 hours he continues to drive the same speed how long will mr green take to drive 400 more miles
Answer:
It would take him 8 hours
Since every 50 miles takes 1 hour
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▹ Answer
8 Hours
▹ Step-by-Step Explanation
First, find the unit rate:
100 miles ÷ 2 hours = 50 mph
Now, we need to find the time it takes to drive 400 miles so we will divide:
400 miles ÷ 50 mph = 8 hours
If you are looking for total hours, you would add:
2 hours + 8 hours = 10 hours
If you are looking for how long it'll take to drive the 400 miles, it would just remain 8.
Hope this helps!
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The sum of two consecutive numbers is 63. Find the two numbers.
Answer:
the two numbers are 31 and 32.
Step-by-step explanation:
x+(x+1)=63
2x+1=63
2x=62
x=31
The answers are 31 and 32
The sum of two consecutive numbers is 63. Consecutive numbers are numbers that are in a row (e.g. 1, 2, and 3 are consecutive integers). This means we can represent the two consecutive numbers with x and x+1. Plugging the numbers back into the equation, you get
x + x+1 = 63
Simpifying, you get
2x+1 = 63
Now, you just need to isolate x. To do this, you should subtract 1 from both sides, making the equation.
2x=62
Lastly, you need to divide both sides by 2, making making the equation
x=31
The two integers are x and x+1, and when you plug 31 into that, the numbers are 31 and 32.
у + 6x — 36 = 0
Solve for y
Answer:
y=-6x+36
Step-by-step explanation:
у + 6x — 36 = 0
-add 36 to both sides
y+6x=36
-subtract 6x from both sides
y=36-6x or y=-6x+36
-This should be the correct answer
Please help with these angles!!!
Answer:
23. y = 47
Step-by-step explanation:
40 + 5x =180 (angls on a straight line add up to 180 degrees)
5x=140 (minus 40 from both sides)
x = 28 (divide both sides by 5)
3y - 1 = 140
3y =141 (add 1 to both sides)
y = 47 (divide both sides by 3)
Answer:
y=47
Step-by-step explanation:
find the slope of the graphs
-2/3x + 2.8 = -8.2 what is x
Which of the following enabled paul revere to select the old north church as the place where lanterns would be raised to signal the path by which the British were advancing?
A. HeI had been a member Of The Bill rengers guild.
B. His father was the pastor of the old north church s he wrote many sermons.
C. He was th accountant for the church finances.
Answer:
C
Step-by-step explanation:
Because I took it
Wht Is a fraction equivalent to 0.4 repeating its self
4/9 is the answer
hope this helps
The frequency vibrations for a certain guitar string When is blood can be determined by the equation below, Where F is the number of vibration per second and T is measured in pounds.If the frequency of the vibrations is 600 vibrations per second, How many pounds of tantrums was used to plug the string? F = 200sqrt(T)
Answer:
9 poundsStep-by-step explanation:
Given the frequency vibrations for a certain guitar string modeled by the equation
F = 200√T where:
T is amount of tantrums in pounds
If the frequency of the vibrations is 600 vibrations per second, the amount of pounds in tantrums will be gotten by substituting F = 600 into the equation and calculating T as shown:
600 = 200√T
Divide both sides by 200
600/200 = 200√T /200
3 = √T
Square both sides
3² = (√T)²
9 = T
T = 9
Hence 9 pounds of tantrum was used to plug the string
Given: 2n=m+h, h=n+m; prove n=2m
An equation is formed of two equal expressions. n=2m can be proved by solving the two of the given equation for h and then equating them together as shown below.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given the two equations, 2n=m+h, and h=n+m. Now, solve the two of the equations for h as shown below.
Equation 1.
2n = m + h
2n - m = h
h = 2n - m
Equation 2.
h = n + m
Further, equate the value of h from both the equation,
h = h
2n - m = n + m
Bring the like terms on the same side of the equation,
2n - n = m + m
n = 2m
Hence, proved n=2m.
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find the square root of 144
Answer:
12
Step-by-step explanation:
Hi there !
144 | 2
72 | 2
36 | 2
18 | 2
9 | 3
3 | 3
1
144 = 2⁴ × 3²
√144 = √2⁴×3² = 2²×3 = 4×3 = 12
Good luck !
Rewrite 1/4 books 1/3 hour as a unit rate.
A. 12 books/hour
B. 1 1/3 books/hour
C. 3/4 books/hour
D. 1/12 books/hour
Answer:
c. 3/4
Step-by-step explanation:
the grade 8 has hired a disk jockey the disk jockey takes 85$ plus 2 for each student that attends. The disk jockey was paid 197 how many students attended
Answer:
56 students
Step-by-step explanation:
The equation for your question is 85+2x=197. First you would have to subtract 85, on both sides, leaving you with 2x=112. Then, you'd have to divide by 2 on both sides to isolate the variable. From there, you're left with x=56.
What is the equation of the line that passes through the point (-4,-2) and has a slope of -1/2
Answer: y=-1/2x-4
Step-by-step explanation:
If you use point slope formula you get
y+2=-1/2(x+4)
simplify that in y=mx+b and you get
y=-1/2x-4
Problem 2 :
Abraham has two pieces of wire, one 6 feet long and the other 12 feet
long. If he wants to cut them up to produce many pieces of wire that
are all of the same length, with no wire left over, what is the greatest
length, in feet, that he can make them ?
A cylindrical tube has a length of 14.4cm and a radius of 1.5cm and is filled with a colorless gas. If the density of the gas is known to be 0.00123g/cm 3 , what is the mass of the gas in the tube in mg?
Answer:
0.125214 gStep-by-step explanation:
we know that density is given as
density=mass/volume
the volume of the cylinder
v= πr^2h
v=3.142*1.5^2*14.4
v=3.142*2.25*14.4
v=101.8cm^3
Given that density =0.00123g/cm^3
mass= density*volume
masss= 0.00123*101.8
mass= 0.125214 g
why is number multiplied by it self called a square of a number
Answer:
Because it is 2 of the same number.
Step-by-step explanation:
Answer:
I believe this is because a square is symmetrical and even so are numbers we multiply are the same number. And because there are two of the same number.
Step-by-step explanation:
I hope this helps. Have a good day! :)
What goes in the blank?
A always
B sometimes
C never
D rarely
Answer:
B
Step-by-step explanation:
fb + 3b = d solve for b
Answer: the answer is d/f+3
sorry i couldnt find my work for this problem but i hope it helps !
An equation is formed of two equal expressions. When in the given equation the value fo b is d/(f+3).
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
fb + 3b = d
Take b as a common term from both the terms on the left side of the equation,
b(f + 3) = d
Divide both the sides of the equation by (f+3),
b(f + 3)/(f+3) = d/(f+3)
Simplify,
b = d/(f+3)
Hence, when in the given equation the value fo b is d/(f+3).
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Find an equivalent fraction for the decimal: .57
sk
28, 32, 36, 37, 39, 41, 41, 43, 45
What is the median of the data?
Answer: 39
Step-by-step explanation:
The median is the number that is in the middle of a greatest-to-least number sequence. Your numbers are already in g-to-l order so its 39
Hope this helps :)
The median of the data is: 39
What is median?"It is the middle number in a sorted list of numbers."
Given data: 28, 32, 36, 37, 39, 41, 41, 43, 45
Given data is already in sorted list form.
The middle number of sorted data is, 39
Therefore, median = 39
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What is the rate of change represented in the table of values at right
A. -8
B. 1/8
C. -1/8
D. 8
Nevaeh borrowed some money from her friend in order to help buy a new video game system. Nevaeh agreed to pay back her friend $25 per week, and after 6 weeks, Nevaeh still owed her friend $50. Write an equation for L, in terms of t, representing the amount Nevaeh owes her friend after t weeks.
Answer:L=-25t+200
Step-by-step explanation:
50=-25(6)+b
50=-150+b
200+b
Answer:
L=-25t+200
Step-by-step explanation:
Warm-Up
Active
Finding the Slope of a Line
What is the slope of a line that contains the points (1
9) and (4, 3)?
10
The slope of the line is
a.5
b. -2
c. 6
d. -3
The answer is b.) -2
Answer:
slope would be -2
Step-by-step explanation:
slope formula
[tex] \frac{ {y}^{2} - {y}^{1} }{ {x}^{2} - {x}^{1} } [/tex]
We know: (1, 9) and (4, 3)
plug in the numbers
[tex] \frac{9 - 3}{1 - 4} [/tex]
subtract
[tex] \frac{6}{ - 3} [/tex]
divide
[tex] - 2[/tex]
Tadaaaa
an elk was clocked running 45 miles per hour. which equation shows the relationship between the distance, y, and time, x, that the elk ran?
Answer:
distance = y = (45 mph)*x
Step-by-step explanation:
distance = rate times time, so
in this case:
distance = y = (45 mph)*x
can simplify this please 3−10(4p−1)
Answer:
- 40p + 13
Step-by-step explanation:
Given
3 - 10(4p - 1) ← distribute the parenthesis by - 10
= 3 - 40p + 10 ← collect like terms
= - 40p + 13
need help w the circled ones plsssss
Answer: #1. yes it's a function #6. the graph is increasing at (-oo , 2) , #7. the graph is decreasing at (2,oo) ,
Step-by-step explanation:
hope it helps
6. It is increasing from (-infinity, 4) or ] i am not sure
7. It is decreasing from ( or [4, infinity)
If the arrow kept on going the f(-12) = x for example, f(4)=2
Important things to know f(x)=y and (x,y)
I am sorry that I can not help with the others!!!
How do you understand
% ahh!!!
Answer:
what
Step-by-step explanation:
[∛27]∧-2 pls is urgent
Answer:
1/9 or 0.1111
Step-by-step explanation:
[∛27]∧-2
We first slove for the bracket before the outer bracket
[∛27]∧-2
Where ∛27 = 3
= 3^-2
= 1/3^2
= 1/9 or 0.1111
Evaluate the arise tic
series described:
12. 0,= 300, n = 25 (please help)