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3 years ago

I need help on number 15

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

Okay, you now a triangle has 180º degrees and to add to 180º, you have to add all the numbers you have like this:
2x+x+90 (the box is 90º)=180º; add like terms like 2x+x
3x+90=180; cancel 90 by subtracting it and also subtract 90 from 180
3x=90;divide 3 to isolate x and also divide 90/3
x=30 :)

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Please help need assistance

SOVA2 [1]

Answer:

Step-by-step explanation:

Keep in mind that anything with a subscript of 0 always comes out as a 1

16(1)+2(2)²(4⁻¹)

= 16+8(4⁻¹)

=16 + 8(1/4)

=16+2

=18

Hope this helps! :)

7 0

3 years ago

The Appalachian trail is 2,174 miles long. About how long would a trail be if it were 3 tines the length of the Appalachian trai

mash [69]

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3 years ago

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3241004551 [841]

56 $\frac{1}{4}$ %

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3 years ago

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ki77a [65]

Answer:

sin(T)

cos(C)

Step-by-step explanation:

sine goes up or down for angles in the circle.

cosine goes left or right for angles in the circle.

consider a circle with is center at T, and it goes through C (so, the radius is 25 = TC).

then 7 = sin(T)×25

24 = cos(T)×25

so, sin(T) = 7/25

then, sin(T) = cos(90-T)

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therefore, cos(C)=sin(T)=7/25

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3 years ago

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maria [59]

Answer:

25%

Step-by-step explanation:

If you start at 45% and it reduces by 20% you are just doing 45-20 which equals 25. (Please let me know if im wrong)

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3 years ago