What is -x(6x-7)? My answer was -6x-7x.
Answers
a(b+c)=ab+ac
rmember
(-) tmes (-)=(+)
so
-x(6x-7)=
-x times 6x+-x times -7=
-6x^2+7x
Good evening
-x(6x-7)
= (-x)(6x-7)
Distribute
(-x)(6x)(-x)(-7)
= -6x²+7x
I hope that's help !
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xy=5
Answers
So here you have xy = 5.
Divide both sides by x, and you have y = 5/x.
So it is not direct variable, it is inverse variation.
indirect variation is a=xy where when x goes down y goes up so less say a=2 then if x=2 then y=1 if x=1 then y=2
for number 9. it shows direct variation because when x goes up, y also must go up
Answers
Answers
Answers
Answer:
58/15
Step-by-step explanation:
Step 1: Convert words into an expression
6 and 2 thirds minus 2 and 4 fifths
6 2/3 - 2 4/5
Step 2: Make common denominator aka 15
6 2/3 = 6*3/3 + 2/3 = 18/3 + 2/3 = 20/3
20*5 / 3*5 = 100/15
2 4/5 = 2*5/5 + 4/5 = 10/5 + 4/5 = 14/5
14*3 / 5*3 = 42/15
Step 3: Subtract
100/15 - 42/15
58/15
Answer: 58/15
Answers
Use the pythagorean theorem.
The foot of the ladder is 4 feet away from the building (leg 1)
The height of the building is leg 2
The ladder, which would be at an angle, is 12 feet. So our hypotenuse would be 12. The equation for this would be a²+4²=12²
We can then begin to solve
a² + 16 = 144
a² = 128
a=11.31
So, our answer is: The top of the ladder reaches the building at 11.31 feet up
Answers
Answer:
There exist no rational number between the number 0.4 repeat and 4/9.
Step-by-step explanation:
Consider the provided number.
0.4 repeat and 4/9
This can be written as:
and
Convert the number 4/9 into decimal form.
Here, both the numbers are same so there exist no rational number between the number 0.4 repeat and 4/9.
No, there is no rationalnumber between the number 0.4 repeat and 4/9.
Any number that can be represented as the ratio of two integers and where the denominator is not zero is referred to as rational.
The provided numbers are:
0.4 repeat and 4/9
We can write 0.4 repeat as
Let's convert number 4/9 into decimal:
On dividing 4 by 9 we get 0.444444
Here we see that 4 keeps repeating.
So 4/9 can also be written as
Since, both the given values are same, there can not be existed any rational number between them.
Hence, there is no rational number between 0.4 repeat and 4/9.
Learn more about rational number here:
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