Answer:
Step-by-step explanation:
-12 + 9 - (-3) - 11
Remember PEMDAS: This is the order of operation.
P-Paragrahp
E-Exponent
M-Multiply
D-Divide
A-Add
S-Subtract
1st step: PEM
-(-3) is actually -1 * -3 = + 3
-12 + 9 + 3 - 11
2nd step: D is not possible, so we do A.
9 + 3 = 12
3rd Step: Subtract
12 - 12 - 11 = 0 - 11 = -11 CHOICE B.
Answer:
Y=-4x+90
Step-by-step explanation:
Slope Intersect Form → Y=mx+b
M= (y2-y1)/(x2-x1)
Find two point of the graph, I choose (0,90) and (10,50)
Plug in back the formula,
(90-50)/(0-10)
=40/-10
=-4
To find B (Y intercept), it is where the graph intersect the y axis
In this case, it is 90.
Thus, Y=-4x+90
Answer:
A = 14.8 B = 14.8
Step-by-step explanation
What you do first is you use the pythagorean theorem to write out the equation
a^2 + b^2 = c^2
a^2 + b^2 = 21^2
a^2 + b^2 = 441
i couldnt find any whole numbers to fit in this equation so just divide 441 by 2
and get the square root of 220.5 which is 14.8 to the nearest tenth for both a and c
Answer:
1665
Step-by-step explanation:
696
969+
_____
1665