Convert 2845 inches per second to miles per hour. Round to one decimal place.
1 answer:
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Answer:
x= 37.5°
Step-by-step explanation:
∠CBD
= 180° -75° (adj. ∠s on a str. line)
= 105°
∠BCD= ∠BDC (base ∠s of isos. △BCD)
∠BCD= x
∠BCD +∠BDC +∠CBD= 180° (∠ sum of △BCD)
x +x +105°= 180°
2x= 180° -105°
2x= 75°
x= 37.5°
<u>Alternative</u><u> </u><u>working</u><u>:</u>
∠BDA= (180° -75°) ÷2 (base ∠s of isos. △ABD)
∠BDA= 52.5°
∠BDA +∠BDC= 90°
52.5° +x= 90°
x= 90° -52.5°
x= 37.5°
Hi!
When we write a number in scientific notation, we write it like this:
N ×
N = a number between one and 10
x = negative if the decimal is moved to the right. positive if moved to the left.
Okay, so we need to move the decimal in the number <span>0.0059 to the right to make it between one and 10.
0.0059
00.059
000.59
0005.9
5.9
N = 5.9
5.9 </span>×
Since we moved the decimal to the right 3 times,
x = -3
5.9 ×
^ the answer
Hope this helps! :)
When we write a number in scientific notation, we write it like this:
N ×
N = a number between one and 10
x = negative if the decimal is moved to the right. positive if moved to the left.
Okay, so we need to move the decimal in the number <span>0.0059 to the right to make it between one and 10.
0.0059
00.059
000.59
0005.9
5.9
N = 5.9
5.9 </span>×
Since we moved the decimal to the right 3 times,
x = -3
5.9 ×
^ the answer
Hope this helps! :)