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3 years ago

14

Find the unknown angles marked in the following triangles

1 answer:

Andre45 [30]3 years ago

6 0

1.180-(57+36)=87 degree

2.180-39=141
141/2=70.5 degrees each

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Look at all the measurements in model 4. when a number in scientific notation is changed to expanded notation, are any of the ad

zheka24 [161]

Yes, the added zeros are significant. Lets say you are converting 1.23 x 10 to the power of 4. The answer would be 12,300 in which case, if you took away the zeros, the number would be 123, which is an incorrect answer.

Hope this makes sense and helps!

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4 years ago

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Misha Larkins [42]

Answer:

c

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3 years ago

Evaluate the following expression. y + 9 when y = 12

tino4ka555 [31]

Answer:

21

Step-by-step explanation:

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Airida [17]

No the table doesn't

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3 years ago

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Am I correct on number 3? If not whats the correct answer? And what is the answer for number 4? Will be marking brainliest!!

timama [110]

Answer for number 4 is $\frac{\bold2}{\bold3}$ hour.

Step-by-step explanation:

Maximum hour spent for all homework (English homework + math homework) is 2 hours.

Let us assume the hours spent for English homework be 'e'.

It is given that:

(Hours spent for math homework) = 2 × (Hours spent for English homework)

Hours spent for math homework = 2 × e = 2e

Total hours spent = (Hours spent for math homework) + (Hours spent for English homework)

Total hours spent = 2e + e = 3e

2 = 3e

3e = 2

∴ e = $\frac{\bold2}{\bold3}$

Therefore number of hours spent on English homework is equal to $\frac{\bold2}{\bold3}$ hours.

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3 years ago