Question: What value of c will complete the square below (
) and make the expression a perfect square trinomial?
Answer: c = 225
Step-by-step explanation:
Perfect square trinomials come in the form a² + 2ab + b², which is equal to (a + b)². In the presented trinomial, we can immediately identify that <u>a = x, and b² = c</u>, but we need to find the numerical value of 
.
To do this, note that the middle term, or <u>2ab, corresponds with (is equal to) 30x</u>. We know that a = x, and thus, <u>2ab = 2bx</u>. Now, 2bx and 30x are corresponding terms; thus, <u>2bx = 30x</u>.
Dividing by 
on both sides gives us <u>b = 15</u>. Therefore, c = b² = 15² = 225. (As a squared binomial, this would be (x + 15)² as a = x and b = 15.)
Factor <span><span><span>x2</span>−<span>3x</span></span>−10</span><span><span><span>x2</span>−<span>3x</span></span>−10</span><span>=<span><span>(<span>x+2</span>)</span><span>(<span>x−5</span>)</span></span></span>Answer:<span><span>(<span>x+2</span>)</span><span>(<span>x−5</span><span>)
here is the answer if the problem is x^2-3x+-10 have good day</span></span></span>
Answer:
x=69.41860973
Step-by-step explanation:
We can use the law of sines
sin x sin 55
------------- = -----------
4 3.5
Using cross products
3.5 sin x = 4 sin 55
Divide each side by 3.5
sin x = 4/3.5 sin 55
Take the inverse sin of each side
x = sin ^-1 ( 4/3.5 sin 55)
x=69.41860973
Answer:
No
Step-by-step explanation:
Adding 8 groups of (-4) = -32
Dividing 8 and (-4) = -2
-2 doesn't equal -32
hope this helps, pls mark brainliest :D
