Answer:
124(cm)^2
Step-by-step explanation:
total surface area of a cuboid=
length=7cm
Breadth=5cm
Height=4cm
2{(2*7)+(5*4)+(4*7)}
2{14+20+28}
2*62
124(cm)^2
Answer:
50°
Step-by-step explanation:
50°+2x=150(vertically opposite angles)
x=50
Answer:
15
Step-by-step explanation:
5*6=30
1/2*30=15
Answer:
Step-by-step explanation:
( g ° f )(x) = ( x + 7 )² = x² + 14x + 49
20 + 3(x² + 14x + 49) = - 34
20 + 3x² + 42x + 147 = - 34
3x² + 42x + 201 = 0 ⇔ x² + 14x + 67 = 0
D = 196 - 268 = - 72 < 0
There is no any roots in set of real numbers.
The values of x in set of complex numbers are:
=
±
= - 7 ± 3√2 i
8/3 = 2 x/3
8/3 = (3*2 +x)/3
a. 8/3 = (3*2+x)/3
8/3 = (3*2+2)/3
so x = 2 bc. 8/3 = 2 2/3
b.
3 1/6 = (3*6+1)/6
3 1/6 = (18 +1)/6
3 1/6 = 19/6
c. 1 - x= 3/8
1 -3/8 = x
x = (8-3)/8
x = 5/8
hope helped