Answer:
(-1,7)
Step-by-step explanation:
-9x + 2y = 23
-4x - y = -3
multiplying equation 2 by 2
-9x + 2y = 23
-8x - 2y = -6
adding the two equation to cancel out y
-17x = 17
x = -1
plugging back x = -1 into the second equation
4 - y = -3
-y = -7
y = 7
The answer is F because you would have to multiply both 4 and 3 to get 12. Then you add both of the exponents for X to get 5. You wouldn't have to do anything for Y because you can't add it to anything.
Answer:
t = - 32.9
Step-by-step explanation:
Step 1:
9.4 = - t ÷ 3.5 Equation
Step 2:
9.4 × 3.5 = - t Isolate the variable
Step 3:
32.9 = - t Multiply
Answer:
t = - 32.9
Hope This Helps :)
Answer:
Step-by-step explanation:
Given: The triangle with coordinate A(4,6), B(2,-2) and C(-2,-4). D is the mid point of AB and E is the mid point of AC.
To prove: DE is parallel to BC.
Construction: Join DE.
Proof: If we prove the basic proportionality theorem that is
, then it proves that DE is parallel to BC.
Now, Mid Point D has coordinates=
and Mid Point E has coordinates=
Now, AD= 
DB=
AE=
EC=
Now, 
=
Hence, 
Thus, By basic proportionality theorem, DE is parallel to BC.
Answer:
Step-by-step explanation:
The distance around the lot is the perimeter of the lot, which has a formula:
P 2L + 2W
We can fill in using the info given:
which multiplies to
and finding a common denominator:
and adding, gives you
