All categories

3 years ago

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

2 answers:

4 0

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!

Nat2105 [25]3 years ago

3 0

= y^2 - 169
= (y)^2 - (13)^2
= (y + 2)(y - 2)

You might be interested in

Fast as possible, 100 point Write an expression for the Product of (x+5)(x-3)

joja [24]

Answer:

I think this could be the answer- x^ +2x-15

4 0

2 years ago

Which of these is the first step in constructing an angle congruent to a given angle?

Salsk061 [2.6K]

Do u have answers to choice from

3 0

2 years ago

Juan used the expression 16 – 9 – 12 + 22 to find his profit for days 2 and 3. He rewrote the expression as 16 + (–9) + (–12) +

malfutka [58]

Jaun has to use inverse before using those properties as they does not support subtraction but only addition.

Solution:

Given that , Juan used the expression 16 – 9 – 12 + 22 to find his profit for days 2 and 3.

He rewrote the expression as 16 + (–9) + (–12) + 22

Juan can use the associative and commutative properties to rewrite the expression again.

We have to explain why he had to use the additive inverse before he could use these properties.

Now, Associative property and commutative property true for addition.

i) a + (b + c) = (a + b) + c ---> Associative property of addition

ii) a + b = b + a --> commutative property of addition.

These properties not true for subtraction.

That's the reason Juan used additive inverse before applying these property.

Hence, jaun has to use inverse before using those properties as they does not support subtraction but only addition.

8 0

3 years ago

Read 4 more answers

You have prizes to reveal! Go to Does (7,9) make the inequality 15x + 17y > 13 true?

Hoochie [10]

Answer:

yes it is cause the answers 258

3 0

3 years ago

Read 2 more answers

Susan charges $8 per hour walking her neighbor’s dog. She charges $12 per hour babysitting. Part A: Define the variables. Part B

Anna35 [415]

Answer:

the total she earns with "d" hours of dog walking and "b" hours of babysitting is given by: 8 d + 12 b

Step-by-step explanation:

If we use "d" to represent the number of hours that Susan walks the dog, and we define "b" as the number of hours she babysits, then the expression that represents the amount she earns by walking the dog is: $8 times d = 8 d

Similarly, the amount she earns by babysitting is $12 times b = 12 b

Then the total she earns with "d" hours of dog walking and "b" hours of babysitting is: 8 d + 12 b

7 0

3 years ago