2 years ago

Please answer this correctly without making mistakes

Mathematics

1 answer:

levacccp [35]2 years ago

6 0

Answer:

6 lbs and 1 oz

Step-by-step explanation:

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Given: X = r + 2, Y = 2r - 9, and Z = r 2 + 17r + 30. Simplify [X · Y - Z] ÷ X.

musickatia [10]

Answer: r - 24

Step-by-step explanation:

$X=r+2;Y=2r-9;Z=r^2+17x+30$

$\frac{x*y-z}{x}$

$\frac{[(r+2)(2r-9)]-(r^2+17r+30)}{r+2}$

$\frac{(2r^2-9r+4r-18)-(r^2+17r+30)}{r+2}$

$\frac{(2r^2-5r-18)-(r^2+17r+30)}{r+2}$

$\frac{2r^2-5r-18-r^2-17r-30)}{r+2}$

Combine like terms;

$\frac{r^2-22r-48}{r+2}$

Solve the quadratic equation;

$\frac{(r-24)(r+2)}{r+2}$

Simplify;

$r-24$

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3 years ago

Joy ate 1/4 of a pizza. If she divides the rest of the pizza into pieces equal to 1/8 pizza for her family how many pieces will

Ostrovityanka [42]

Joey will give his family 6 pieces of pizza

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3 years ago

Read 2 more answers

What’s the percentage?

sdas [7]

Answer:

66%

Step-by-step explanation:

66 out of 100 (66/100) of the grid is shaded, which is 66%

7 0

2 years ago

On January 1t 2014, approximately 450 thousand buildings in the United Statcs (US) had sola panels. This number increased by a t

pogonyaev

Answer:

Step-by-step explanation:

5 0

2 years ago

Find the volume of the cone 3ft and 2 ft. Round your answer to the nearest tenth if necessary. Use 3.14 for pie

denpristay [2]

Answer:

37.68 ft^3

Step-by-step explanation:

The parameters used in describing a cone is radius and height

Hence

Radius= 3ft

Height = 2 ft

The volume of a cone is given as

$v=\frac{1}{3} \pi r^2 h$

substitute

$v=\frac{1}{3}*3.14*3^2*2^2\\\\v=\frac{1}{3}*3.14*9*4\\\\v=\frac{1}{3}*113.04\\\\v=37.68 ft^3$

Hence the volume is 37.68 ft^3

5 0

2 years ago