3 years ago

Simplify this expression 45p - 9p + 8

Mathematics

2 answers:

lana [24]3 years ago

7 0

36p+8 would be your answer

beks73 [17]3 years ago

3 0

Answer:

45p-9p+8 simplified is 36p+8

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Find the Area of the figure below, composed of a rectangle and a semicircle. Round to the nearest tenth place.

kap26 [50]

Answer: 68.1

Step-by-step explanation:

The area of a semi-circle is 1/2 the area of a full circle. The area of a full circle is pi*r^2. Therefore, the area of a semi-circle is:

$Area=\pi r^2/2$

$Area=\pi (3)^2/2=9\pi /2$

The area of a rectangle is the length multiplied by the width:

$Area=l*w$

$Area=6*9=54$

The net area is the sum of the rectangle and the semi-circle:

$Area=(9\pi /2)+(54)=68.1$

8 0

2 years ago

The width of a rectangle is 8 cm less than its length. The perimeter of the rectangle is 52 cm. What is the width of the rectang

ozzi

L = X
w = X - 8
P = 52 cm

P = 2l + 2w
52 = 2(X) + 2(X - 8)
52 = 2x + 2x - 16
52 + 16 = 4x
68 = 4x
68/4 = 4x/4
17 = X.

The length of the rectangle is 17 cm.

W = X - 8
W = 17 - 8
W = 9 cm.

The width of the rectangle is 9 cm.

6 0

4 years ago

Solve for k in 2x^2+kx-3

Hitman42 [59]

Answer:

K = $\frac{-2x^{2} +3}{x}$

Step-by-step explanation:

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3 0

3 years ago

How do you solve this using substitution <br> -8x-y=-30<br> Y=12x-50

never [62]

Step-by-step explanation:

substitude the y value into y in the first equation

-8-(12x-50)=30

-8-12x+50=30

you see it?

then solve

-8+50-30=12x

you got the value = 12x

then you divide with 12

finally you get x

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3 years ago

James and Amy plays 3 more games they have played the same number of games as last week fill in the blanks to make the equation

kolbaska11 [484]

Answer:

3x-3

Step-by-step explanation:

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3 years ago