An=a1+d(n-1)
a13=1.9
1.9=a1+3.7(13-1)
1.9=a1+3.7(12)
1.9=a1+44.4
minus 44.4 both sides
-42.5=a1
an=-42.5+3.7(n-1)
S_24, so sum all theway up to a24
S_n=(n(a1+an))/2
a1=-42.5
a24=-42.5+3.7(24-1)=42.6
S_n=(24(-42.5+42.6))/2
S_n=(24(0.1))/2
S_n=(2.4)/2
S_n=1.2
D
Answer:
145°
Step-by-step explanation:
If we start on the x-axis and rotate a ray (arrow) counterclockwise to the y-axis, that would be an angle of 90°.
Adding this 90° to the 55° angle shown would result in a total angle of 145°
Answer:
74
Step-by-step explanation:
P(AD) + P(BD)
=(6x7) + (4x8)
=42+32
=74
Answer:
5.005
try that, im pretty sure you subtract
x is the independent variable.
y is the dependent variable.
-3 is the rate of change (slope).
-7 is the initial value.
Step-by-step explanation:
The form of the linear relation is y = m x + b, where
- m is the rate of change (slope)
- b is the initial value(value of y at x = 0)
- x is the independent variable
- y is the dependent variable
∵ The equation of the line is y = -3 x - 7
- Compare it with the form above
∴ m = -3
∵ m is the rate of change
∴ The rate of change is -3
∴ b = -7
∵ b is the initial value
∴ The initial value is -7
∵ y depends on x
∴ x is the independent variable
∴ y is the dependent variable
x is the independent variable.
y is the dependent variable.
-3 is the rate of change (slope)
-7 is the initial value.
Learn more:
You can learn more about the linear equations in brainly.com/question/4152194
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