Any suggestions or answers

Mathematics

1 answer:

alex41 [277]3 years ago

3 0

Answer:

C. A is an obtuse angle.

Step-by-step explanation:

It tells you than an angle greater than 90 and less than 180 is an obtuse angle. (Right angles are 90 degrees and 180 angles are straight angles.)

120 > 90 and 120 < 180, so A is an obtuse angle.

Hope this helps!

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True of false:There is always one solution of a system of linear equations.

MAXImum [283]

Answer:

true

Step-by-step explanation:

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4 years ago

If you run a marathon of 26 1/5 miles in a time of 5 4/5 how far do you run in 1 hour<br><br>pls

alisha [4.7K]

First let's make both the miles and the hours ran improper fractions:

$26+\frac{1}{5}=\frac{131}{5}\\ 5+\frac{4}{5}=\frac{29}{5}$

So, to find our miles per hour, we have to divide the miles by the hours to get: $\frac{\frac{131}{5}\text{miles}}{\frac{29}{5}\text{hours}}=\frac{131\text{miles}}{29\text{hours}} \\ \text{ Now we have to divide the top and the bottom by 29 to get our miles per hour so: }\\ \frac{\frac{131}{29}}{\text{hour}} \approx \frac{4.52 \text{miles}}{\text{hour}}$

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3 years ago

HELP 5 STAR RATING ADN BRAINLY IF SOLVED!

alexandr402 [8]

It is $84.6. You multiply 1.6 by 13 which equals $20.8. Then you multiply 3.1 by 14 which equals $43.4. Then you multiply 1.2 by 17 which equals $20.4. Add them together and you get $84.6.

Hope this helps:)<span />

5 0

3 years ago

Read 2 more answers

Last week jackson babysits 1 1/2 times as many hours as he babysat this week . last week jackson babysat 12 hours .how many hour

Stells [14]

Multiply fraction (1 1/2) by the # of hours last week (12).

= 1 1/2 * 12
change to improper fraction
= 3/2 * 12
multiply numerators
= (3*12)/2
= 36/2
= 18 hours

ANSWER: D) 18 H

Hope this helps! :)

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4 years ago

Need help due tonight

Degger [83]

Answer:

an=7n-19

(the last one)

Step-by-step explanation:

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3 years ago