Answer:
Option 1 is correct.
Step-by-step explanation:
Given two linear equations to us are ,
And we have to find which system of linear equations have same answer .
On considering option (1) which is ,
On taking the second equation in this ,
This is same as the second one given in the Question . And the first one is already same .
<u>Hence</u><u> </u><u>option</u><u> </u><u>(</u><u>1</u><u>)</u><u> </u><u>is</u><u> </u><u>corre</u><u>ct</u><u> </u><u>.</u><u> </u>
Answer:
60
Step-by-step explanation:
The corresponding angles of the triangles are given, y + 10 and 2y - 40. You need to first find the value of the variable (in this case, y), and to do this, you need to set them equal to one another:
y + 10 = 2y - 40
<u>Subtract y from both sides:</u>
<u />
y + 10 = 2y - 40
-y -y
____________
10 = y - 40
<u>Add 40 to both sides:</u>
<u />
10 = y - 40
+40 +40
________
50 = y
Now that we have the value of y, you need to plug the value into one of the expressions (either one will come out with the same answer):
y + 10
50 + 10 = 60
<em><u>OR</u></em>
<u />
2y - 40
2(50) - 40
100 - 40 = 60
<u />
Answer:
f(-2) = 0
Step-by-step explanation:
If x+2 is a factor of f(x), then -2 will be a zero of f(x).
Sergei must show that f(-2) = 0.
====
<em>Proof:
</em>
f(x) = x^6 – 40x^4 – 40x^3 – 141x^2 – 200x + 420.
f(-2) = (-2)⁶ - 40(-2)⁴ - 40(-2)³ - 141(-2)² - 200(-2) + 420
f(-2) = 64 – 40(16) - 40(-8) – 141(4) – 200(-2) + 420
f(-2) = 64 – 640 + 320 – 564 +400 + 420
f(-2) = 0
The graph of f(x) also shows that (x+ 2) is a factor, because there is an
<em>x-intercept at (-2, 0)</em>.
Answer:
32
6.4
Step-by-step explanation:
since the absolute value of everything is positive, we can subtract 66-34, to learn that it covered 32 units, in means of distance, and then 32 divided by 5 is 6.4, which mean it covered an average of 6.4 units per minute