2 years ago

If you cut a piece that was 5cm wide and had a area of 20cm how long would the piece be?

1 answer:

8 0

If it is a rectangle the length would be 4cm
A=L×W
20=L×5
÷5. ÷5 divide both sides by 5
4=L and you get 4

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tatyana61 [14]

$6\sqrt2$

Why?

We have the isosceles right triangle. The length of legs are 6. Use the Pythagorean theorem:

$h^2=6^2+6^2\\\\h^2=36+36\\\\h^2=36\cdot2\to h=\sqrt{36\cdot2}\\\\h=\sqrt{36}\cdot\sqrt2\\\\h=6\sqrt2$

In general, the formula for calculating the hypotenuse in an isosceles right triangle is $h=a\sqrt2$

a - a leg, h - a hypotenuse

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3 years ago

UNO [17]

Answer:

9800000

Step-by-step explanation:

8 0

2 years ago

Mama L [17]

Answer:

y=(1/3)x+5

Step-by-step explanation:

Slope-intercept: y=mx+b

m=((y2-y1)/(x2-x1)) = (6-4)/(3+3)= 2/6= (1/3)

y=(1/3)x+b

plug in one of the points (3,6)

6=(1/3)(3)+b

6=1+b 5=b

6 0

2 years ago

Alexeev081 [22]

How much for 1lb
2.99/14=0.213/1=$0.21

it is 21 cents per lb

4 0

3 years ago

hjlf

Answer: y= -3/2x + 2
y= -3/2 + b
5 = -3/2 * -2 + b
5 = 3 + b
2 = b

6 0

2 years ago