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

1 answer:

7 0

The answer is 4.61 :)

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Jet001 [13]

Answer is 2( x + 2 )^2 - 5 I think

4 0

2 years ago

yarga [219]

Answer:

BC = 3.6

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

$\frac{BC}{DE}$ = $\frac{AC}{AE}$ , substitute values

$\frac{BC}{1.2}$ = $\frac{4.5}{1.5}$ ( cross- multiply )

1.5 BC = 5.4 ( divide both sides by 1.5 )

BC = 3.6

6 0

2 years ago

aleksklad [387]

211,135.71 merry christmas

5 0

1 year ago

Sloan [31]

<span>g^2 – 4g – 21 = (g – 7)(g +3 )

hope it helps</span>

8 0

2 years ago

insens350 [35]

5 liters (L) of 30% bleach solution contains 0.3×(5 L) = 1.5 L of bleach.

3 L of 50% bleach contains 0.5×(3 L) = 1.5 L of bleach, too.

Combined, you would have 8 L of solution containing 1.5 L + 1.5 L = 3 L of bleach, so the concentration of bleach is

(3 L) / (8 L) = 0.375 = 37.5%

7 0

2 years ago