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My name is Ann [436]
3 years ago
5

Completely factors 1. x^2-36 2. y^2+4 3. x^2-9y^2

Mathematics
2 answers:
JulsSmile [24]3 years ago
6 0
(x + 6)(x - 6) 

y^2 + 2^2

(x + 3y) • (x - 3y) <span>
  </span>

prisoha [69]3 years ago
4 0
<span>1. x^2-36 = x^2 - 6^2 = (x + 6) (x - 6)
2. y^2+4 = y^</span><span>2 + 2^2 = (y−2)^2 + 4y</span><span>
3. x^2 - 9y^2 = x^2 - 3^2y^2  = (x + 3y)(x - 3y)</span>
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Pls help for number 6
Vlad1618 [11]
A: 45x + 30y = 1350
Since we don’t know how many adults and children are in the group, we use x and y

b: x-intercept= 30 y-intercept=45
To find the x-intercept you need to isolate the variable. 45x/45 = x
Then you do the same thing to the other side. 1350/45 = 30
So x=30
Same thing with the y-intercept.
30y/30 = y 1350/30 = 45
y=45 (Not really sure what it means by “what they represent” but I thinks it’s that there are 30 adult tickets and 45 children tickets )

c: so our points are (30,0) and (0,45) so you would graph that.
To find how many children tickets were bought if there were 20 adult tickets just look at the photo I put. I don’t know how to explain this.


Hope this helps

7 0
3 years ago
Michael works 30 hours per week and makes $15.00 per hour. How much does he make in a 4-week month?
Wewaii [24]

Answer:

$1,800

Step-by-step explanation:

If Michael works 30 hours a week for $15 an hour we can use the equation:

15 x 30 = 450.

Now just multiply the given answer by 4 and you're left with:

450 x 4 = 1800.

4 0
3 years ago
What are the quotient and remainder of (3x^4+ 2x^2 - 6x + 1) /(x + 1)
quester [9]

Answer:

all work is shown and pictured

4 0
3 years ago
The diagram shows a right-angled triangle.
Margarita [4]
1/sin(38)*7=11.4
Hope it helps
6 0
3 years ago
The following time series shows the sales of a clothing store over a 10-week period. Compute the mean square error (MSE) for a 4
Alenkasestr [34]

Answer:

7.67

Step-by-step explanation:

Given the data :

Week_sales_Forecast ___|error|_ |error|²

1 _____15

2 ____ 16

3 ____ 19

4 ____ 18

5 ____ 19 ____ 17 _______ 2____4

6 ____ 20 ___ 18 ________2____4

7 ____ 19 ____19 ________0____0

8 ___ 22 ____ 19 ________3____9

9 ___ 15 ____ 20 ________5___ 25

10 __ 21 _____19 ________ 2 ___ 4

Mean squared error :

(4 + 4 + 0 + 9 + 25 + 4) / 6

= 46 / 6

= 7.666

= 7.67

8 0
3 years ago
Read 2 more answers
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