Multiply bottom equation by -3 to add and eliminate y’s.
So...
5x-15y=10
+-9x+15y=18
You get -4x=28 so x=-7
Plug in to get y
5(-7)-15y=10
-35-15y=10
-15y=45
So y=-3
Check in other equation
3(-7)-5(-3)=
-21+15=-6
So x= -7 and y= -3
Answer:
358.01
Step-by-step explanation:
3 x 10^2 +5 x 10^1 +8 x 10^0 +1 x 1/10^2
3 x 100 + 5 x 10 +8 x 1 +1 x 1/100
300 +5 x 10 +8 x1 +1 x 1/100
300 + 50 +8 x1 +1 x 1/100
300 +50 +8 +1 x1/100
300 +50 +8 +1/100
358 +1/100
35801/100
358.01
The picture in the attached figure
we know that
Applying the law of sines
b/sin B=a/sin A------> a=b*sin A/sin B
b=9
B=15°
A=180-(90+15)-----> A=75°
a=?
a=b*sin A/sin B-----> a=9*sin 75/sin 15----> a=33.59 units
the answer is33.59 units
Subtract the sides of the equation plus 5/6
So ;
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:
6 cm
Step-by-step explanation:
Area = ½ × b × h
24 = ½ × 8 × h
24 = 4 × h
24/4 = h
6 = h