Yes, it is true, you can use a letter as a variable in an equation.
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Answer:
3/8 or 37.5%
Step-by-step explanation:
3B
2A
3C
_______+
8 total positions
3/8=37.5%
Answer:
2/9^8
Step-by-step explanation:
3^0 = 1 so it turns into 9^-8/ 2^-1
Then put 9^-8 on the bottom to make it positive
Now its 1/9^8 & 2^-1
Then put 2 on top to make it positive and 2^1 is just 2
So now you have 2/9^8
Answer:
7 units
Step-by-step explanation:
In an isosceles right triangle, the hypotenuse is √2 times the leg length. Then ...
... 7√2 = leg·√2
... 7 = leg . . . . . . . divide both sides by √2
_____
<em>Comment on isosceles right triangle</em>
If the legs are both length 1, the Pythagorean theorem tells us ...
... hypotenuse² = 1² +1² = 2
... hypotenuse = √2 . . . . . . . . . square root both sides of the equation
This result can be scaled by any multiplier you like. In this problem, the scale factor is 7, making the legs 7 and the hypotenuse 7√2.
Considering the area of the rectangle, we have that the length is of 8 units and the width is of 10 units.
<h3>What is the area of a rectangle?</h3>
The area of a rectangle of length l and width w is given as follows:
A = lw.
In this problem, the area is of 80 square units, while the length and the width are consecutive even integers, hence:
Then:
l(l + 2) = 80
l² + 2l - 80 = 0
(l + 10)(l - 8) = 0.
We need the positive measure, hence:
l - 8= 0 -> l = 8 units.
w = l + 2 = 10 units.
More can be learned about the area of a rectangle at brainly.com/question/10489198
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