Answer:
We have two rates, A and B.
If we want that the units of A can be converted into the units of B, then we must have that the units of A represent the same measure that the units of B.
What does this mean?
For example, if A is written in distance over time, then B must also must have units of distance over time.
An example would be:
units for distance = meter, kilometer, feet, etc.
units for time = hour, minute, second, etc-
Then we could have:
[A] = [km/h]
[B] = [m/min]
Then the units of A could be converted into the ones of B, because both of them have the same physical meaning.
Concluding, you only can convert units that represent the same physical quantity, for example, if you have one quantity in meters, for example:
10m
You only can convert this to other units of distance, remember to do the correct conversion, if we would want to write this in cm, you should remember that:
1m = 100cm
Then, 10 times one meter is 10 times 100 cm
10m = 10*(1m) = 10*(100cm) = 1000cm
The following graph predicts the time it takes to hike different distances. Which statements about the graph are true?
(Choice A)
A
The point (0, 0)(0,0)left parenthesis, 0, comma, 0, right parenthesis predicts that it takes 000 hours to hike 0 \text{ km}0 km0, start text, space, k, m, end text.
(Choice B)
B
The point (3, 7.5)(3,7.5)left parenthesis, 3, comma, 7, point, 5, right parenthesis predicts that it takes 7.57.57, point, 5 hours to hike 3 \text{ km}3 km3, start text, space, k, m, end text.
(Choice C)
C
None of the above
Answer:
The answer is [tex]A\\[/tex]
Answer:
A
Step-by-step explanation:
I got it right on khan
49 - (32+8.3) I need help doing this
Answer:
234
Step-by-step explanation:
Answer:
The answer would be 8.7
Step-by-step explanation:
First, you would start with the parentheses. So add 32+8.3 to get 40.3.
The equation will look like this: 49-40.3
The final step would be subtraction.
49-40.3= 8.7
You will get 8.7 as your answer!
I hope this helps!! ;-)
What is another name for line n?
Oline ST
line P
line QP
line
A line is found to be a one dimensional figure, which has length but no width. The another name for the line n is line. The two points which lie on the same line are called collinear points. The correct option is D.
What is a line?A straight set of points which can extend in opposite directions can be defined as the line. It has no ends in both directions, no thickness and it is one dimensional. It is determined by two points in a two dimensional plane.
In geometry, there are different types of lines like horizontal and vertical lines, parallel and perpendicular lines. The lines play an important role in the construction of different types of polygons.
A square is made by four lines of the same lengths, whereas a triangle is made by joining three lines end to end.
Thus the correct option is D.
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f(x) = (x + 1)2
What is the domain of f?
Answer:
all real values of x
Step-by-step explanation:
khan academy says so
The domain of the parabolic function is all real number. Then the correct option is E.
What are domain and range?The domain means all the possible values of x and the range means all the possible values of y.
A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.
The function is given below.
f(x) = (x + 1)²
Then the domain of the parabolic function is all real number.
Then the correct option is E.
More about the domain and range link is given below.
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Find the are of the green in the circle.
Answer:
25.12 cm²
Step-by-step explanation:
The area of a circle is given by the formula ...
A = πr²
where r is the radius. Here, the diameter is given as 8 cm, so the radius will be half that, or 4 cm. The area is then ...
A = 3.14(4 cm)² = 50.24 cm²
The green shaded part is 1/2 a circle, so is half this area:
shaded area = 25.12 cm²
help
Select all that apply. Which expressions are equivalent to 6r + 12?
x(6 +12)
2(3x + 6)
6(x+12)
6(x + 2)
3(2x + 4)
Answer:
2(3x+6), 6(x+2), and 3(2x+4)
Step-by-step explanation:
Brad’s checking account starts off with a balance of $126.50. Throughout the week, Brad pays a bill for $87.21, and pays $5.64 for breakfast. He deposits $15.00 but then pays another bill for $55.25. At the end of the week, he gets a notice from the bank that he has a negative balance. How much does Brad need to deposit into his account to get to a $0 balance?
Answer:
$6.60
Step-by-step explanation:
Twice a number increased by 3 is greater than six
Answer:
2x + 3 > 6
Step-by-step explanation:
Hopefully this helps you :)
pls give me brainlest :)
Which statement best describes the value of V8? I’m so confused:((
Answer:
c
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
√8 = 2.828
Just simplfy it, and then check where it lies between.
Hope this helped!
:D
What is the base number for the system of units ? In other words by what number do we multiply to move up in scale ? _____
what is -18 - ( -18 )
Answer:
0
Step-by-step explanation:(-18)
- + - = +
So
(-18) + (18) is 0
Answer:
The answer would be 0.
Step-by-step explanation:
-18 - (18) = 0, because 0 can not ever be negative or positive.
It is the same as saying 18 - 18 which equals 0.
Mary says the slope of this line is −6. Dayana says the slope is
2/5. Who is correct?
Y=2/5x-6
Which expression forms an equation? 60 ÷ 6 + 5, 40 ÷ 2 + 1, 40 ÷ 1 + 5, 60 ÷ 2 + 3
Answer:
None
An equation must have an equal to sign meaning an equation must state that what is on the right must equal to what is on the left.
Step-by-step explanation:
[tex]60 \div 6 + 5\\FALSE \\Follow\:the\:PEMDAS\:order\:of\:operations\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\\\:60\div \:6\::\quad 10\\\\=10+5\\\\=15[/tex]
70 POINTSS!!!!!!! ANSWER ASAP write a paragraph on what you've learned about exponents and why some people may utilize exponents in their jobs.
Simplify: -5x +11x - 4+2
A 16x-6
B 4x
7x-3
D
6x-2
Answer:
Option D
Step-by-step explanation:
Combine Like Terms.
[tex]-5x+11x-4+2\\\\\boxed{6x-2}[/tex]
Hope this helps.
Answer:
D.) 6x - 2
Step-by-step explanation:
First, you add all like terms.
-5x +11x = 6x
-4 + 2= -2
= D.) 6x - 2
Hope this helps!
The line segment is rotated 90 degrees counterclockwise about the origin to form C′D′. Which statement describes C′D′
Answer: the answer is CD is half the length of CD
Step-by-step explanation:
-5n + 31 = -14n - 5 what is the equation
Answer:
-4
Step-by-step explanation:
-5n+31=-14n-5
-5n+14n=-5-31
9n=-36
n=-36/9
n=-4
Answer:
n = 4
Step-by-step explanation:
-5n + 31 = -14n - 5
31 + 5 = -14n - 5n
36 = -9n
-9n = 36
-9n = -36
n = 36/9
n = 4
minus minus cut
Express the following fraction in simplest form using only positive exponents.
6x^3
(2x^4)^2
Answer:
6*3=18
2*4=8*2=16
16
18
33
Step-by-step explanation:
The number 27 raised to which power will equal 3
Answer:
-3
Step-by-step explanation:
herp derp herp derp herp derp
Step-by-step explanation:
Hey there!!
The power of 25 should be 1/3 to make it equal to 3.
Because,
=[tex] {27}^{ \frac{1}{3} } [/tex]
=[tex] {3}^{3 \times \frac{1}{3} } [/tex]
=[tex] {3}^{1} [/tex]
= 3
Hope it helps...
Aliyah $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?
Answer:
They are $2 dollars a piece
George spend $17.25 on pecans and
peanuts at a farmer's market. He bought
3 1/2 pounds of pecans
for $3.20 per pound
and 5 1/2 pounds of peanuts. What was the
price per pound for the peanuts George
purchased?
On what interval is the function f(x) = -2|x + 1| − 3 decreasing?
A. (-1, ∞)
B. (-3, ∞)
C. (-∞, -1)
D. (-∞, -3)
Answer:
answer is b iam sure this is correct
Answer:
the answer is a
Josiah skateboarded from his house to school 4 miles away. It takes him 20 minutes. a. If Josiah's speed, in miles per minute, is constant, what is the constant of proportionality. *
b. How many minutes will it take Josiah to skateboard to his friend Sebastian's house, which is 3 miles from school, if he travels at the same rate that he did form his house to school?
Answer: 35 miles
Step-by-step explanation:
If 4 miles is 20 minutes that mean 1 mile is 5 minutes so just add 4+3 which is 7 then multiply that by 5 which is 35 so it takes him 35 minutes to go to his friends house
Given:
Josiah skateboarded from his house to school 4 miles away. It takes him 20 minutes.Josiah's friend Sebastian's house is 3 miles from school.To find:
The constant of proportionality.The time taken by Josiah on his skateboard to Sebastian's housea.
Distance from Josiah's house to school = 4 miles
Time taken by Josiah on a skateboard to cover 4 miles = 20 min
The speed of Josiah's skateboard = S
[tex]Speed=\frac{Distance}{Time}\\\\S=\frac{4 miles}{20 min}\\\\S=0.2 miles/min[/tex]
The Josiah's speed, the constant of proportionality is 0.2 miles per minute.
b.
Distance From school to Sebastian's house = 3 miles
Time taken by Josiah on a skateboard to travel to Sebastian's house from school = t
The Josiah's speed, the constant of proportionality = 0.2 miles/min
[tex]0.2 miles/min=\frac{3 miles}{t}\\\\t=\frac{3 miles}{0.2 miles/min}=15 min[/tex]
The time taken by Josiah on his skateboard to Sebastian's house is 15 minutes.
Learn more about proportionality constant here:
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how would you make this into an equation 10 more than the product of 7 and 8
Answer:
7*8+10=66
Step-by-step explanation:
Use the operations from the sentence into the equation and solve.
Solve for x. 3(x−4)/2=9 Enter your answer in the box. x =
Answer:
x = 10
Explanation:
Answer:
x=5
Step-by-step explanation:
3(x-4)/2=9
Distribute 3
3x-12/2=9
3x-6=9
add 6 to both sides
3x=15
divide both sides by 3
x=5
what is the value of 0.75 - 0.6? write your answer as a fraction in lowest terms.
Answer:
3/20
Step-by-step explanation:
.75 - .6 = .15
put .15 over 100 then simplify by 5 =3/20
Answer:
3/20
Step-by-step explanation:
0.75= 75/100
0.6= 60/100
75/100- 60/100= 15/100
15/100 ---> 3/20
Hope this helps!
Someone please help! What is the solution to w - 9 = 15? 5 1/2 6 1/2 24 1/2 23 1/2
Answer:
w=24
Step-by-step explanation:
w-9=15
w=15+9
w=24
Answer:
24 1/2
Step-by-step explanation:
just did
2 1/3 + 6 3/5 = What ?
Answer:
[tex]8\frac{14}{15}[/tex]
Decimal form: [tex]8.933333[/tex]
Step-by-step explanation:
[tex]2 \frac{1}{3}+6\frac{3}{5}[/tex]
To solve, you will need to add.
First, add the whole number together.
[tex]2+6=8[/tex]
[tex]\frac{1}{3}+\frac{3}{5} \\=14/15[/tex]
So now add everything together(the whole number and fraction).
[tex]8+\frac{14}{15}=8\frac{14}{15} (Answer)[/tex]
Hope this helps!
13(2x - 1) - 3(9x + 8) = 10
Quick help?
Answer:
1
Step-by-step explanation:
13(2x-1)-3(9x-8) = 10
or, 26x-13-(27x-24) = 10
or, 26x-13-27x+21 = 10
or, 11 - x = 10
or, 11 - 10 = x
therefore, x = 1
I hope it helped
square root of 8 is between 7 and 9 true or false
The given statement is false.
We have the following statement -
Square root of 8 is between 7 and 9.
We have to determine if it is true or false.
What do you mean by square root of a number ?Square root of a number is a value, which on multiplication by itself gives the original number.
According to the question -
A = [tex]\sqrt{8}[/tex] = 2.82
Clearly, it is not between 7 and 9.
Therefore, the statement is false.
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