Factorise y^2 - 169?????????????

Answers

Answer 1
Answer: y^2 - 169
= (y)^2 - (13)^2
= (y + 2)(y - 2)
Answer 2
Answer: Step 1. Rewrite it in the form: a^(2) - b^(2), where a = y and b = 13

y^(2) - 13^(2)

Step 2. Use Difference of Squares: a^(2) - b^(2) =(a+b)(a-b)

(y+13)(y-13)

Done!

Related Questions

Please can someone help me like right now .thank you so much !
(3×6)×9 and 3×(6×9) what is the property is applied
1/2 of 2/3=1/2 of_thirds =_thirds
Help pleaseee?I've been stuck on this for a while.
What is the value of the expression [(29+18)+(17-8)]÷8

Morgan and Leigh spend a certain amount of money from their money box each month to buy plants. The table shows the relationship between the amount of money (y) remaining in Morgan's money box and the number of months (x):

Function 1
Number of Months
(x) Amount Remaining (in dollars)
(y)
1 50
2 40
3 30
4 20


The equation shows the relationship between the amount of money (y) remaining in Leigh's money box and the number of months (x):

Function 2:
y = −9x + 60

Which statement explains which function shows a greater rate of change?
Function 1 shows a greater rate of change, because Morgan spends $10 each month and Leigh spends $9 each month.
Function 1 shows a greater rate of change, because Morgan spends $10 each month and Leigh spends $60 each month.
Function 2 shows a greater rate of change, because Morgan spends $10 each month and Leigh spends $60 each month.
Function 2 shows a greater rate of change, because Morgan spends $50 each month and Leigh spends −$9 each month.

Answers

the change for 1st function is -10 and rate of change of 2nd function is -9. Use the slope formula to find the  answer of 1st function.

Answer:

The first one since after each x interval the y is decreasing by 10 and in the second equation after each x interval the y is decreasing by 9

The first representation is the answer: Morgan

Can somebody explain how to do this

Answers

Answer:

y ≤  11x + 17

Step-by-step explanation:

Slope - Intercept form looks like:

y = mx + b, where m is the slope of the line and b is the y-intercept

so, for

11x - y ≥ -17   ( Rearrange, move x-term to other side)

- y ≥ -17 - 11x

- y ≥ - (17 +  11x)     (multiply both sides by -1, remember to flip the inequality)

y ≤ 17 +  11x

y ≤  11x + 17  (answer)

What is the area of the figure? A.
square inches

B.
square inches

C.
square inches

D.
square inches

Answers

Given:
Length = 20 inches
Width = 16 inches
Missing = 8 inches

There are two shapes in the figure. A rectangle and a square.

We need to get the area of the rectangle and the area of the square. Then, subtract the area of the square from the area of the rectangle to get the total area of the figure.

Area of the rectangle = length x width
                                  = 20 in x 16 in
Area of the rectangle = 320 in²

Area of the square = s² = 8² = 64 in²

Area of the figure = 320 in² - 64 in² = 256 in²

What is the equivalent of 4 times the square root of five? answer all that apply. The rest of the answers are:
2 times the square root of ten
AND
3 times 5 and 1/2

Answers

So the selected answer would be 2√20 because that comes out to about 8.94
And 4√5 comes out to 8.94 as well but I could be wrong but yeah that's what I think

Angie is saving money to buy a new tennis racket that costs $138. She has saved $46 so far. If Angie saves $14 each week, what is the least number of weeks, w, that she will have to save to buy the racket? Write an inequality to describe the situation. Use the inequality to solve the problem.

Answers

46 + 14w > = 138.....w represents number of weeks
14w > = 138 - 46
14w > = 92
w > = 92/14
w > = 6.57....the least number of weeks would be 7
138=46+14w -46 -46 92=14w 92÷14= 6.5714285714 (round up) W=7 weeks Hope that helped

Every Wednesday, Carla runs 2.5 miles. How many feet did she run? I have no idea how to do this.

Answers

Answer: Carla ran 13,200 feet.

Step-by-step explanation:

Hi, to answer this question we have to know that each mile has 5,280 feet.

So, to calculate how many feet did she run we have to multiply the distance in miles (2.5) by 5,280 (feet in one mile).

Mathematically speaking:

2.5 miles x 5,280 f/miles = 13,200 feet

Carla ran 13,200 feet.

Feel free to ask for more if it´s necessary or if you did not understand something.

for every mile that's 5280 ft, so 2.5 miles would equal to 13200 ft.