Answer:
<h2>294mm²</h2>
Step-by-step explanation:
Surface Area = Sum of Area of all shapes.
There are 6 cubes which have a length of 7mm.
Area = L * L
Area = 7 * 7
Area = 49mm²
Surface Area = Area of 1 square * Number of Squares
Surface Area = 49 * 6
Surface Area = 294mm²
Answer:
-14
Step-by-step explanation:
First of all, we know that 5x^2+ ax+7x +5=0 only has one root. That means that b^2 - 4ac=0, and we can use this to find the discriminant, ax + 7x.
Now, if we simplified 5x^2+ ax+7x +5=0, by dividing it all by 5, it would be x^2+(a+7)/5x + 1 = 0.
After, we can plug what we know into the formula, b^2 - 4ac=0. It would be:
(a+7)^2 / 25 - 4 = 0
(a+7)^2 / 25 = 4
(a+7)^2 = 100
Since this is a square root, a+7 can be both negative or positive.
a+7= 10, or a+7 = -10
a=3, or a=-17
The question asks for the sum of a, which is 3 + (-17) = -14
Therefore, the answer is -14.
:) have fun with your rsm problems, assuming you got this from the portal.
Answer:
Step-by-step explanation:
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Answer:
-6x
check the attachment i provided
Step-by-step explanation:
Answer:
Step-by-step explanation:
