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Sindrei [870]
3 years ago
6

If sin(x)=0.5, then cos(90-x)=

Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

0.5

Step-by-step explanation:

we know , cos(90-α)=sinα

Given:sin(x)=0.5

So, cos(90-x)=sin(x)

                         =0.5

Therefore, cos(90-x)=0.5

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Sally begins hiking at an elevation of 224 feet. Then, she descends 131 feet and climbs 67 feet higher than her current position
Deffense [45]

Answer:

-3

Three feet below the initial elevation

Step-by-step explanation:

The initial elevation is 224 feet.

We take descent to be negative and ascent to be positive.

The numerical addition expression is

224+-131+67+-163

We simplify this to obtain:

224-131+67-163=-3

The negative sign means Sally is 3 feet below his initial elevation

5 0
3 years ago
394.6 divided by 9 using compatible numbers to estimate the quotient?
Maru [420]
Round 396.6 to 396, because 396/9=44, making a whole number. Hope this helps!!
5 0
3 years ago
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givi [52]

Answer:

1/8 of a sandwich

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3 years ago
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Write each decimal as a fraction in lowest terms <br><br> 0.255
Vesnalui [34]

Answer:

51/200

Step-by-step explanation:

To write a decimal as a fraction, you have to make the decimal the numerator, and put a multiple of ten with that number of zeroes in the denominator:

0.255 = 255/1000

Then we simplify

51/200

6 0
1 year ago
Find the slope of the line that passes through the points (0,7) and (-4,7) ​
aev [14]
Slope: (y2-y1)/(x2-x1)
(0,7) and (-4,7)
(7-7)/(-4-0) = 0/ -4
The slope is 0
8 0
2 years ago
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