That's a bit of a nasty. Where ever you see (x^2 + 6) you put in p.
p^2 - 21 = 4(x^2 + 6)
p^2 - 21 = 4p
p^2 - 4p - 21 = 0
A <<<< answer.
Simplify √20 to 2√5
2 * 2√5 - 3√7 - 2√5 + 4√63
Simplify √63 to 3√7
2 * 2√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 2 * 2√5 to 4√5
4√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 4 * 3 √7 to 12√7
Collect like terms
(4√5 - 2√5) + (-3√7 + 12√7)
Simplify
2√5 + 9√7
Answer: B
Answer:
=9.4
Step-by-step explanation:
The median is the middle of the numbers when lined up from smallest to largest
(n, n+5, n+6, n+9, n+15)
The median is n+6
n+6 = 9
Subtract 6 from each side
n +6-6 = 9-6
n = 3
The numbers are
(n, n+5, n+6, n+9, n+15)
3, 8 ,9 ,12, 15
The mean is where you add up all the numbers and divide by the number of numbers
mean = (3+8+9+12+15) /5
= (47)/5
= 9 2/5
=9.4
Answer: 562,5+315,75=878,25
Answer:
Step-by-step explanation:
Given
To find
- Coordinates of intersection of lines
As per the graph the intersection point has coordinates:
The point is (-3, -2)
should be placed<u> in-between 3 and 4</u> on the number line (a little bit approaching number 4). The cube root of 49 is 6.66. Therefore, <em>it shouldn't be placed on number 7.</em>
. Probably, she missed the number 3. It was actually asking for the<em> cube root of 49</em>. This is also the reason why she placed the dot on the number 7 because the<em> square root of 49 is 7</em>.