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Ksivusya [100]
3 years ago
6

If sin(x)=0.28 what is cos(90-x)

Mathematics
2 answers:
Sidana [21]3 years ago
6 0
I think it’s 0.28
I hope that helped
postnew [5]3 years ago
4 0
It is 0.28 because x and 90-x are complementary, so their angles add up to 90°.
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When a number is divided by -3, the result is 12 more than the number what is the number?
olga55 [171]
X/-3 = 12 + x
x = -36 - 3x
4x = 36
x= = 9

The number is 9.

8 0
3 years ago
Whoever answers this correct gets most brainly!!
zzz [600]
D the last please tell me if I’m right thanks
5 0
3 years ago
Evaluate 9 C 5.<br><br> 24 <br><br> 3,024<br><br> 45<br><br> 126
Tanzania [10]
A quics way to do this :-

9C5    = 9*8*7*6*5              3 * 7 * 6   =    126
             -------------        =     
              5*4*3*2*1                 
5 0
3 years ago
Read 2 more answers
What is the ratio of 102 steps walked in 1 minute?
san4es73 [151]

Answer:

102 steps/1minute

In seconds it would be 102/60 which can be reduced to 17/10, or 1.7

8 0
3 years ago
High School Pre Cal
krok68 [10]
We know that
1) Sandra can run a mile in 6 minutes-------> 6*60-----> 360 sec
2) 4 laps around the track equals 1 mile
so
4 laps around the track in 360 sec
1 lap in 360/4--------> 90 sec
3) the position of Sandra for t=90 sec must be equal to the point S (0,56)
I proceed to analyze each case for t=90 sec

case a) x(t)=-140 cos(pi*t/45)    y(t)=112 sin(pi*t/45)
x(t)=-140 cos(pi*90/45)------> -140
y(t)=112 sin(pi*90/45)-------> 0
the position is the point (-140,0)------> is not the point S

case b) x(t)=140 sin(pi*t/90)  y(t)=-112 cos(pi*t/90)

x(t)=140 sin(pi*90/90)------> 0
y(t)=-112 cos(pi*90/90)-------> 112
the position is the point (0,112)------> is not the point S
<span>
case c) x(t)=-70 sin(pi*t/45)  y(t)=56 cos(pi*t/45)
</span>x(t)=-70 sin(pi*90/45)------> 0
y(t)=56 cos(pi*90/45) -------> 56
the position is the point (0,56)------> is equal to the point S----> is the solution

case d) x(t)=70 cos(pi*t/90)  y(t)=-56 sin(pi*t/90)

x(t)=70 cos(pi*90/90)------> -70
y(t)=-56 sin(pi*90/90)-------> 0
the position is the point (-70,0)------> is not the point S

 therefore

the answer is the option C

x(t)=-70 sin(pi*t/45)  y(t)=56 cos(pi*t/45)


7 0
3 years ago
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