Answer:
84%
Step-by-step explanation:
of the means division.
42/50 = 84/100 = 84%
Answer:
5/8x+1/2x-4=5
or, 5(2x-4)+8x= 5
or, 10x- 20+8x=5
or, 10x-8x= 20+5
or, 2x= 25
or,x= 25/2
:.x= 25/2
Step-by-step explanation:
first we have to make denominator then we can criss cross multiply. we can make in same point .if there is plus we can subtract and if there is front minus if we take it back it must be plus. then we can put same point then we can divide
Hello :
<span>(3x²+kx-1) is a quadratic polynome when : a =3 , b=k , c= -1
the discriminat </span>Δ = b²-4ac ≥ 0 because ac = -3 <span><<span> 0
-4ac </span></span>>0 and b²<span>≥0
the </span> quadratic polynome has :2 solutios or 1 solution (Change of sign)
conclusion : <span>is never always positive for any value of k</span>
Answer:
110 and 70
Step-by-step explanation:
opposite sides of parallelograms are equal so you can set 2x+30 equal to 5x-90
when you do this:
2x+30=5x-90
-2x -2x
30=3x-90
+90 +90
120=3x
/3 /3
40=x
now you can plug 40 in for 5x-90
example:
5(40)-90
200-90
110
m<r=110
<r and <s are supplementary because they are consecutive angles
supplementary is when two angles add up to 180
since <r is 110, do 180-110 and get 70
m<s = 70
Angle A should be equal to 47
