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aliina [53]
3 years ago
11

Factorise a squared - b squared

Mathematics
1 answer:
marusya05 [52]3 years ago
5 0
(a-b)(a+b) because when you reverse the sum you do axa and ax-b xx
You might be interested in
In the expression (44 ÷ 4 + 10) - 20 , with which operation should we start?
Luden [163]
You have to do whats in the parentheses from left to right then subtract the answer you get by 20



(9x10) - (30+30)
90 - 60 = 30



8 x (12+5) -7^2
17
17-49
18 x -32

= -576.



You have to use pemdas for your check off
P=parentheses
E=exponet
M=multiplication
D=division
A=add
S=subtrabt

HOPE IM CORRECT
4 0
2 years ago
Read 2 more answers
Quentin is one third the age of his aunt. And 20% older than his sister. If Quentin's sister is 15 years old, how old is his aun
anastassius [24]

Answer:

54

Step-by-step explanation:

20% of 15 is 3 so Quentin is 18 years old

If Quentin is one thrid his Aunt's age that means his aunt is three times older.

18 * 3 = 54

So his Aunt is 54 years old

5 0
3 years ago
Read 2 more answers
The table below shows the quantities of onions consumed
Grace [21]

Answer:

The graph is attached

Step-by-step explanation:

Th table that shows the quantities of onions consumed  (in kilogram) over 5 weeks by a person is as follows: (see the attached file)

Plot the points (1,1),(2,2),(3,3),(4,4),(5,5) on the graph.

(see the attached file)

Download docx
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> docx </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pptx </span>
6 0
2 years ago
Mr. Shamir employs two part-time typists, Inna and Jim, for his typing needs. Inna charges $15 an hour and can type 6 pages an h
coldgirl [10]

Answer:

The minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

Step-by-step explanation:

We are given the following information in the question:

Charges for 1 hour for Inna = $15

Number of pages typed by Inna in 1 hour = 6

Charges for 1 hour for Jim = $18

Number of pages typed by Jim in 1 hour = 8

Let x be the number of hours Inna work and let y be the number of hours Jim work.

Total cost = 15x + 18y

We have to minimize this cost.

Then, we can write the following inequalities:

6x + 8y \geq 208\\x \geq 8\\y \geq 8\\

The corner points as evaluated from graph are: (8,20) and (24,8)

C(8,20) = 480$

C(24,8) = 504$

Hence, the minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

The attached image shows the graph.

3 0
3 years ago
The table shows conversions of common units of capacity.
Vaselesa [24]

Answer:

d

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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