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3 years ago

PLEASE HELP DUE NOW!!!!

Mathematics

2 answers:

Alex Ar [27]3 years ago

8 0

Answer:

4. x=120

5. x=65

9. x=150

10. x=45

Step-by-step explanation:

4. Half=180

There is already a 60, so you do 180-60=120. x=120.

5. This is a parallel line, so you determine the opposite angle of 115, which is 65. That just becomes the x. x=65

9. It is similar to #5, You look at the opposite side of 30 (15+15) which is 150. That just comes to the other side which is x=150.

10. A triangle has 180 degrees in total. 45 degrees is already given, and line j is 90 degrees which means a full line is 180. 180-90=90.

90+45=135

180-135=45

x=45

Hope this helped!

ValentinkaMS [17]3 years ago

5 0

Answer:

4. x=120

5. x=65

9. x=150

10. x=45

Step-by-step explanation:

4. Half=180

There is already a 60, so you do 180-60=120. x=120.

5. This is a parallel line, so you determine the opposite angle of 115, which is 65. That just becomes the x. x=65

9. It is similar to #5, You look at the opposite side of 30 (15+15) which is 150. That just comes to the other side which is x=150.

10. A triangle has 180 degrees in total. 45 degrees is already given, and line j is 90 degrees which means a full line is 180. 180-90=90.

90+45=135

180-135=45

x=45

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4 years ago

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3 years ago

PLEASE HELP ASAP, ILL GIVE BRAINLIEST

frozen [14]

Answer:

false, false, true, true, true

Step-by-step explanation:

Let's check each of the answers by plugging them into the inequality.

-2 (false):

$9-3(-2)$ which is false.

-1 (false):

$9-3(-1)$ which is false.

0 (true):

$9-3(0)$ which is true.

1 (true):

$9-3(1)$ which is true.

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3 years ago

Twelve times of a number decreased by lo is equal to 14. write this in a mathematical sentence and find the number

Inessa [10]

Answer:

12n-10=14, n=2

Step-by-step explanation:

( Twelve times of a number decreased by 10 is equal to 14 ) This sentence can be written mathematically to be: 12n-10=14

The answer: Add 10 to both sides: 12n-10=14 > 12n-10+10=14+10 > 12n=24

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3 years ago

Estimate 9272 - 28 by first rounding each number so that it has only 1 nonzero digit.

Tatiana [17]

Answer:

8970

Step-by-step explanation:

In order to round 9272 so that it has only 1 nonzero digit, look at the hundred digit, If the number is greater or equal to 5, add 1 to the thousand figure. If this is not the case, add zero

The hundred digit is 2 which is less than 5, so 0 is added to 9. the number becomes 9000

In order to round 28 so that it has only 1 nonzero digit, look at the units digit, If the number is greater or equal to 5, add 1 to the tens figure. If this is not the case, add zero

The units digit is greater than 5, so 1 would be added to tens digit. the number becomes 30

9000 - 30 = 8970

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3 years ago