3 years ago

If the mass of a metal bar which is 3.25m long is 15 kg,find its mass per metre.

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

The answer is 4.61 :)

You might be interested in

Solve for h in the literal equationg g ( h +3/2)=7

nikklg [1K]

Answer: 40/2=3

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A fish weighs 8 times as much as a parakeet together they weigh 63 oz how much does the fish weigh

amm1812

I think you have to divide 63 by 8 which will give you 7.875 (8).
You can write it as an equation: 8x n=63
n=7.8

7 0

3 years ago

A can of beans has surface area 337 cm2. It's heights is 11cm. What is the radius of the circular top?

Karolina [17]

Answer:

3.66 cm

Step-by-step explanation:

r = Radius of cylinder

h = Height of the cylinder = 11 cm

A = Total surface area of the cylinder = $337\ \text{cm}^2$

Total surface area of a cylinder is given by

$A=2\pi r^2+2\pi rh\\\Rightarrow A=2\pi r(r+h)\\\Rightarrow \dfrac{A}{2\pi}=r^2+rh\\\Rightarrow r^2+rh-\dfrac{A}{2\pi}=0\\\Rightarrow r^2+11r-\dfrac{337}{2\pi}=0\\\Rightarrow r^2+11r-53.64=0\\\Rightarrow 100r^2+1100r-5364=0\\\Rightarrow r=\dfrac{-1100\pm \sqrt{1100^2-4\times 100\left(-5364\right)}}{2\times 100}\\\Rightarrow r=3.66,-14.65$

So, the radius of the circular top is 3.66 cm.

6 0

2 years ago

Fiona was playing a game. She started on space #8. The cards told her to move forward 12 spaces, back 10 spaces, back 1 space an

solong [7]

Answer:

B. Space 14

Step-by-step explanation:

8 + 12 = 20

20 - 10 = 10

10 - 1 = 9

9 + 5 = 14

So the answer is Space 14.

3 0

2 years ago

Read 2 more answers

What is the value of x

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

8 0

3 years ago