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Brut [27]
3 years ago
14

I need help on 22 pls

Mathematics
1 answer:
Dima020 [189]3 years ago
8 0

Answer:

a) 1.24 g/ml

b) 2.4%

Step-by-step explanation:

density = mass/volume

volume of sample = 28.4 - 15 = 13.4mL

density = 13.4/10.8

=1.24 g/ml

percent error

1.27 - 1.24 = 0.03

0.03/1.24 *100% = 2.4% error

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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

If EF bisects DEG, this means that angles DEF and angles FEG are congruent, and they each make up half of angle DEG.

Therefore, we can set up the equation:

DEF + FEG = DEG

However, since we know that DEF and FEG represent the same value, we can change this equation into the following:

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Now, we can substitute in the expressions that we are given:

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To simplify, we should first use the distributive property on the left side of the equation.

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Hope this helps!

7 0
4 years ago
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Answer:

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