3 years ago

2. If a marble is selected at random from Adrian's Bag of Marbles,

Mathematics

1 answer:

Aleks04 [339]3 years ago

3 0

Answer:

9 out of 16

Step-by-step explanation:

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B) Make b the subject of the formula a = 4 - 3b

Ira Lisetskai [31]

A=4-3b
subtract 4 from both sides
a-4=-3b
divide by -3 for both sides
(a-4)/-3 = b

5 0

3 years ago

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Find the area A of the polygon with the given vertices.

Natalija [7]

Answer:

A = 35 square units

Step-by-step explanation:

Formula to calculate the distance between two points $(x_1,y_1)$ and $(x_2,y_2)$ is,

d = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Length of the segment between A(2, 2) and B(9, 2) = $\sqrt{(9-2)^2+(2-2)^2}$

= 7 units

Length of the segment between B(9, 2) and C(9, -3) = $\sqrt{(9-9)^2+(2+3)^2}$

= 5 units

Length of the segment between C(9, -3) and D(2, -3) = $\sqrt{(9-2)^2+(-3+3)^2}$

= 7 units

Length of the segment between A(2, 2) and D(2, -3) = $\sqrt{(2-2)^2+(2+3)^2}$

= 5 units

Therefore, given polygon is a rectangle.

Area of the rectangle = length × width

= 7 × 5

= 35 square units

4 0

3 years ago

the length of a rectangular piece of land is 12cm more than four times its width. the perimeter is 74cm. find its dimensions

Marysya12 [62]

length = 32 and width = 5

let the width = w then length = 4w + 12

perimeter = 2 ( length + width )

= 2( 4w + 12 + w ) = 2( 5w + 12 ) = 10w + 24

perimeter = 74

solve 10w + 24 = 74

subtract 24 from both sides

10w = 74 - 24 = 50 ⇒ w = 5

width = 5 and length = (4 × 5) + 12 = 20 + 12 = 32

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3 years ago

Find the missing value.

ioda

Answer:

<h2>I hope this helped</h2>

8 0

3 years ago

Im crying please help me so much

kenny6666 [7]

Answer:

I know A is one of them, not sure about the others, sorry

Step-by-step explanation:

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3 years ago

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