This is what the test said so option D
Answer:
The roots of the equation are x=-3 and x=-2.5
Step-by-step explanation:
<u><em>The correct quadratic equation is</em></u>
2x^2+11x+15=0
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
The roots of the equation are x=-3 and x=-2.5
Answer:
b. 15a +20b
Step-by-step explanation:
Given:
5 (3a+4b)
= 15a + 20b
a. 15a + 4b
Not equivalent
b. 15a +20b
Equivalent
c.5a+3a+4b
= 8a + 4b
Not equivalent
d. 5a+10a b+3b
= 15a + 4b
Not equivalent
e. 10a +5a +15b +3b
= 15a + 18b
Not equivalent
Answer:
138
Step-by-step explanation:
G + H = 180 {G, H are linear pair}
12x + 6 + 4x - 2 = 180
12x + 4x + 6 - 2 = 180
16x + 4 = 180
16x = 180 - 4
16x = 176
x = 176/16
x = 11
G = 12x + 6
= 12*11 + 6
= 132 + 6
= 138
Answer:
V = π × r² × h
Step-by-step explanation:
All you need to do is multiply the base times the height and since the base is a circle whose formula is π × r², we get π × r² × h.