Answer:
64.6 km/h
Step-by-step explanation:
18:14 = 18h 14'
1h = 60'
18h = 17h + 60'
18h14' = 17h + 60' ´14' = 17h 74'
then:
17h 74'
-17h 22'
= 0h 52'
the train travelled 56km at 52 minutes
56km/52minutes
1 hour = 60 minutes
52 minutes = 52/60 = 0.86667 hours
then:
56km/52minutes = 56km/0.86667hours
= 64.615 km/hours
Answer:
No its not a right angle.
9514 1404 393
Answer:
a) no
b) yes
c) yes
d) no
Step-by-step explanation:
Angle LJM is complementary to KJL, so is ...
angle LJM = 90° -42° = 48°
Angle NJP is marked as congruent to angle PJQ, so is also 48°.
__
a) ∠KJL = 42° ≠ 48° = ∠LJM . . . . NO
b) ∠MJP = 46°+48° = 48° +46° = ∠PJR . . . . YES
c) ∠LJP = 48° +46° +48° = 48° +48° +46° = ∠NJR . . . . YES
d) ∠MJK = 90° ≠ 48° +46° = ∠PJR . . . . NO
Step-by-step explanation:
4x2+8x−3=0
For this equation: a=4, b=8, c=-3
4x2+8x+−3=0
Step 1: Use quadratic formula with a=4, b=8, c=-3.
x=
−b±√b2−4ac
2a
x= −(8)±√(8)2−4(4)(−3)
2(4)
x= −8±√112
8 x=−1+
1 2 √7 or x=−1+
−1 2 √7
Answer: x=−1+
1 2√7 or x=−1+
−1 2 √7
Answer:
Base = 6 inches
Step-by-step explanation:
30 divided by 1/2 equals 60. 60 divided by 10 equals 6.
To check:
A = 1/2bh
30 = 1/2 x 6 x 10
30 = 30 ✅
