2 years ago

C) Workout using factorization. Show all your working. 9.9²- 0.1²

Mathematics

1 answer:

Anni [7]2 years ago

7 0

Answer:

Step-by-step explanation:

1) You shulduse the formula x^2-y^2= (x-y)(x+y)

That obvious, that 9.9 is considered as x, and 0.1 as y

2) So 9.9²- 0.1²= (9.9-0.1) * (9.9+0.1)=9.8*10=98

You might be interested in

Need help pls pls pls asap pls

Sav [38]

Answer:

C(h) = 1+.25h

Step-by-step explanation:

Total cost = flat fee plus .25 times h ( where h is the number of hours)

C(h) = 1+.25h

5 0

2 years ago

What is the coefficient in the expression x/3+7

Ber [7]

X/3+7
co-efficient=1/3
how?
x/3 is also the same as x(1/3).

4 0

3 years ago

What is 80,040,960 in word form

Dmitry [639]

Eighty million, forty thousand, nine hundred sixty.

4 0

3 years ago

Read 2 more answers

Mr. Tom bought a Paqui #OneChip Challenge for $3.50. He also bought some water for $2.50 per gallon.

Anettt [7]

Answer:

he bought 3 gallons of water

8 0

3 years ago

Read 2 more answers

A rectangular compound has a length of 4x + 7 with a width of 3x - 2 what is the area of a compound

IRISSAK [1]

Answer:

A=12x²+13x-14

Step-by-step explanation:

Area=Length×width

A=(4x+7)(3x-2)

A=4x(3x-2)+7(3x-2)

A=12x²-8x+21x-14

A=12x²+13x-14

4 0

3 years ago

C) Workout using factorization. Show all your working. 9.9²- 0.1²​

C) Workout using factorization. Show all your working. 9.9²- 0.1²