Answer:
Step-by-step explanation:
The given line PQ passes through the points P(-5,-13) and Q(5,17) .
Find the slope using the formula:
Plug in the points to get:
Use the point-slope formula :
Substitute the point (5,17)
Expand:
The standard form is when the equation is put in the form
Regroup the terms to get:
The standard form is
<span>x/x+6 simplfiy to 1/6 = 0, So your answer is 0</span>
Având în vedere expresiile 4a + 7b + 6c și ecuațiile date a + b = 16 și b + 2c = 28.
4a + 7b + 6c pot fi scrise ca
<em>a + a + a + a + b + b + b + b + b + b + b + c + c + c + c + c.</em>
<em>= (a + b) + (a + b) + (a + b) + (a + b) + (b + 2c) + (b + 2c) + (b + 2c).</em>
Înlocuind valorile a + b = 16 și b + 2c = 28, ajungem
(a + b) + (b + 2c) + (b + 2c) + (b + 2c)
= 16 + 16 + 16 + 16 + 28 + 28 + 28
= 64 + 84
= 148.
<h3>
Prin urmare, 4a + 7b + 6c = = 148.</h3>
Answer:
E. 0.6872
Step-by-step explanation:
An appropriate calculator or Z-table is needed for answering questions like this. My calculator tells me the area is ...
0.687267787 ≈ 0.6873
____
The web app shown in the attachment gives the same 4-digit value.
____
If you look up the area values in a table, you might find ...
p(z < -1.2) = 0.1151
p(z < 0.85) = 0.8023
Then the difference is ...
p(-1.2 < z < 0.85) = 0.8023 -0.1151 = 0.6872
_____
Note that the least significant digit of the difference between rounded numbers often cannot be trusted to be accurate--as in this case.