Paolo pays $244 for 5 indentical calculators. About how munh dose paolo pay for one calculators?

Consider the following system of equations. -10x2-10y2=-300 5x2+5y2=150 Which statement describes why the system has infinite so

scoundrel [369]

Answer:

The equations represent circles that result in the same graph.

Step-by-step explanation:

we have

$-10x^{2}-10y^{2}=-300$

Divide by -10 both sides

$x^{2}+y^{2}=30$ -----> equation A

This is the equation of a circle centered at origin with radius $r=\sqrt{30} \ units$

and

$5x^{2}+5y^{2}=150$

Divide by 5 both sides

$x^{2}+y^{2}=30$ -----> equation B

This is the equation of a circle centered at origin with radius $r=\sqrt{30} \ units$

equation A and equation B are equal

therefore

The system has infinite solutions, because the equations represent circles that result in the same graph.

4 0

3 years ago

Find the slope of each line. 1) y=5/2x-5

natali 33 [55]

Answer:

The slope of this equation is 5/2.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Which shape is always a rectangle?

meriva

Answer:

D. A square because it has 4 right angles.

Step-by-step explanation:

A square is a rectangle but a rectangle is not a square.

8 0

3 years ago

Can yall help me out

Nastasia [14]

Answer:

Question 1 (1 point)

1. An object has a mass of 25g and a volume of 5ml

a

10

b

8

c

5

d

7

Question 2 (1 point)

2. An object has a mass of 30g and a volume of15ml. What is the density?

a

10

b

2

c

3

d

5

Question 3 (1 point)

3. An object has a mass of 200g and a volume of 100ml. What is the density?

a

2

b

4

c

6

d

8

Question 4 (1 point)

4. An object has a mass of 17g and a volume of 2ml. What is the density?

a

2.4

b

2

c

8

d

8.5

Question 5 (1 point)

5. An object has a mass of 20g and a volume of 5ml. What is the density?

a

2

b

4

c

10

d

2.5

Question 6 (1 point)

6. An object has a mass of 75g and a volume of 75ml. What is the density?

a

6

b

1

c

7

d

8

Question 7 (1 point)

7. An object has a volume of 100ml and a mass of 2oo ml. What is the density?

a

0.5

b

1

c

4

d

2.5

Question 8 (1 point)

8. An object has a volume of 5ml and a mass of 650 g. What is the density?

a

110

b

120

c

130

d

200

Question 9 (1 point)

9. An object has a mass of 15g and a volume of 5ml. What is the density?

a

2.5

b

7

c

3

d

2.56

Question 10 (1 point)

10. An object has a mass of 13g and a volume of 2ml. What is the density?

a

6.5

b

3.7

c

4

d

Step-by-step explanation:

7 0

2 years ago

Big Ben (the clocktower) in London has a circumference of 72.22 feet and an area of 415.27 feet^2. What is the diameter AND radi

Mashutka [201]

Answer:

Diameter = 23 Radius = 11.5

Step-by-step explanation:

Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.

72.22 ÷ 3.24 = 23

diameter = 23

Divide the diameter by 2.

23 ÷ 2 = 11.5

There you go, you found the circle's radius

7 0

1 year ago