Help please quick it's for my grades

Mathematics

1 answer:

Rzqust [24]3 years ago

8 0

I think it is 14, I’m not sure tho

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The equation of a line is y = 2x + 1 1. Copy and complete the table belo 1 2 (x, y) Plot the points on graph paper and draw the

lana [24]

2(-2)+1 = -3
2(-1)+1 = -2
2(0)+1 = 1
2(1)+1 = 3
2(2)+1 = 5

Plot points on graph then draw line

5 0

3 years ago

Noah earned w dollars over the summer. Mai earned x dollars, which is y dollars more than

Wewaii [24]

Answer:

Equation: x-w=y

Step-by-step explanation:

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From a piece of tin in the shape of a square 6 inches on a side, the largest possible circle is cut out. What is the ratio of th

wel

Answer:

$\sf \dfrac{1}{4} \pi \quad or \quad \dfrac{7}{9}$

Step-by-step explanation:

The width of a square is its side length.

The width of a circle is its diameter.

Therefore, the largest possible circle that can be cut out from a square is a circle whose diameter is equal in length to the side length of the square.

Formulas

$\sf \textsf{Area of a square}=s^2 \quad \textsf{(where s is the side length)}$

$\sf \textsf{Area of a circle}=\pi r^2 \quad \textsf{(where r is the radius)}$

$\sf \textsf{Radius of a circle}=\dfrac{1}{2}d \quad \textsf{(where d is the diameter)}$

If the diameter is equal to the side length of the square, then:
$\implies \sf r=\dfrac{1}{2}s$

Therefore:

$\begin{aligned}\implies \sf Area\:of\:circle & = \sf \pi \left(\dfrac{s}{2}\right)^2\\& = \sf \pi \left(\dfrac{s^2}{4}\right)\\& = \sf \dfrac{1}{4}\pi s^2 \end{aligned}$