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aleksley [76]
3 years ago
13

What number should be added to the expression x^2 + 2x to change it into a perfect square trinomial?

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0
The\ perfect\ scuare:(a+b)^2=a^2+2ab+b^2\\------------------\\\\x^2+2x\to a=x;\ 2ab=2xb\to b=1\\\\therefore\\\\x^2+2x\cdot1+1^2=x^2+2x+\boxed{1}\leftarrow\boxed{A}
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The area of a triangular prism is 18inches squared. We know the height is 9.5in. What is base a, b, and c?
ivanzaharov [21]

Answer: step by step calculation, formula & solved example

problem to find the area for the given values of base b, & height h of triangle in

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8 0
3 years ago
Help I don’t know what to do
Allushta [10]
Symbol i we call imaginary unit =>
 
This is basic

i^2= i * i = -1
i^3= i^2 * i = -1 * i = - i
i^4= i^3 * i = -i * i = - (i * i )=- (i^2)= - (-1) = 1
i^5= i^4 * i = 1 * i = i
i^6= i^5 * i = i * i = i^2 = -1
i^7= i^6 * i = -1 * i = - i
i^8= i^7 * i = -i * i = -(i * i)= -( i^2)= - (-1) = 1

You have all you need.
You conclude which simplifications of the power i are correct.

Good luck!!!!  




6 0
4 years ago
Niam has 2 pounds of flour to use for making cookies. Each batch of cookies uses 1/4 lb of flour. Which expression could Niam us
Licemer1 [7]

D. 2 divided by 1/4

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6 0
4 years ago
Goes through points (-2,-1) and (-3,5)<br> Help me pleaseeeeeeeeeee
DedPeter [7]

Answer:

Distance between two points = √37

Step-by-step explanation:

Given:

(-2,-1)

(-3,5)

Find:

Distance between two points

Computation:

Distance = √(x1 -x2)² + (y1 - y2)²

Distance between two points = √(-2+3)² + (-1 - 5)²

Distance between two points = √ 1 + 36

Distance between two points = √37

7 0
3 years ago
PLEASE HELP!!
saw5 [17]
(0.4×30,000)−5,000
=7,000
4 0
3 years ago
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