Simplify: (2x - 5y)(7x-2y)
help plz
Answers
Answer:
14x+10y
Step-by-step explanation:
(2x-5y)(7x-2y)
(2x*7x)(-5y*-2y)
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Answers
To make this process simpler, we can start off my translating both values into decimals.
In order to change a percentage into a decimal, you can either divide the percentage by 100, or (my personal shortcut) just shift the decimal point over two places to the left.
10% = 0.1
Now, onto the fraction.
To change
3 / 8 = 0.375
Now, we can reattach the whole number to get our entire decimal:
2.375
From here, we can multiply these two values to get our answer:
0.1 * 2.275 = 0.2375
which is the decimal form of our answer. In order to find the fractional form, we must simply put all of the numbers to the left of the decimal point as the numerator of a fraction, with a multiple of 10 with as many zeros as there are numbers to the left of the decimal point as the denominator.
0.2375 =
And we can reduce this fraction heavily by dividing out like terms. For the sake of time, I will eliminate this step to tell you that the finished reduction shows us a fraction of
So there you have it.
10% of 2
Hope that helped! =)
Answers
First, write it as numbers, not words.
7/10n + 14 < 49
where "n" is the unknown number.
Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.
7/10 = 0.7
Now, solve it like you would any other equation.
0.7n + 14 < 49
0.7n +14 - 14 < 49 - 14
0.7n < 35
0.7n ÷ 0.7 < 35 ÷ 0.7
n < 50
The answer is n < 50
Answers
Answer with explanation:
A Rule which expresses that for every input, the output is an even number can be written in many ways
f(x)=2 x , where x is any Integer.
f(n)=4n, where n is any Integer.
f(s)=6s, where s is any Integer.
f(k)=8k, where k is any Integer.
----------------------
There can be many more expressions.
In these expressions,if you replace,x ,n,s and ,k by any integer , the result will be an Even Number(Positive Even Number or Negative Even Number).
B. f(x ) = |x| – 42.67
C. f(x ) = |42.67 – x|
D. f(x ) = 42.67 – |x|
Answers
C) f(x)=|42.67-x|.
Explanation:
Production will be stopped if the difference in diameter is greater than 0.002 mm.
This difference can mean that the golf ball has a diameter more than 0.002 larger than 42.67 mm, or a diameter more than 0.002 smaller than 42.67. This is the reason for using an absolute value function.
Absolute value represents the distance a number is from 0. For this function, we would want only the values where the function is less than 0.002.
Answer: B
Step-by-step explanation: i got it right on edge
t(4 + 1)
t(5)
5t
What property or properties were used to prove that the expressions are equivalent?
commutative and distributive properties
associative and distributive properties
associative and commutative properties
associative property
Answers
The proof used the distributive property and the associative property of multiplication.
Option B is the correct answer.
What is an expression?
An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the liketerms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To be specific, the distributiveproperty was used to break down the expression 4t + t as:
4t + t = (4 + 1)t ________(1)
And then the associativeproperty was used to rearrange the terms as:
(4 + 1)t = 5t ________(2)
From (1) and (2)
We have shown that 4t + t is equivalent to 5t.
Thus,
The proof used the distributive property and the associative property of multiplication.
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Answer:
its A: commutative and distributive properties
Step-by-step explanation:
i got it right
y=x²-6
are: (Select)
-5) and ( (Select)
-5).
Answers
Therefore , the solution of the given problem of equation comes out to be the system of equations' answers are (-1, -5) and (1, -5).
What is an equation?
The foundation of a regression model based on linearity is the equation y=mx+b. The inclination is B, and the y-intercept is m. Even though y but also y are separate components, the above line is frequently referred as the "mathematical issues with two variables". Two factors make up bivariate linear equations. There are no simple answers for the applications of linear functions. Y=mx+b .
Here,
We can change the second equation into the first equation to find the solution to the system of equations, which results in:
=> x² + (x²-6) = -4
By condensing and rearrangeing, we obtain:
=> 2x² = 2
=> x² = 1
Consequently, x can either be 1 or -1.
We can determine the appropriate values of y by substituting these values of x into either of the two equations:
When x Equals 1:
=> y = x² - 6 = 1 - 6 = -5
When x Equals -1:
=> y = x² - 6 = 1 - 6 = -5
As a result, the system of equations' answers are (-1, -5) and (1, -5).
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