1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Inessa05 [86]
3 years ago
6

4. Multiply or divide : i) (a+b) (a-b) ii) (4b +5a) ÷ 2 b​

Mathematics
1 answer:
IgorC [24]3 years ago
4 0

Answer:

1. a²-b²

2.4b² + 5ab/2

Step-by-step explanation:

1:. it's a formula of a²-b² so, it can be solved like this and

2: I'm not sure about 2nd one

You might be interested in
what is the area of the figure ? answers a. 12 units2 b. 17 units 2 c. 16 units 2 d. 24 units2 e. none
stellarik [79]

9514 1404 393

Answer:

  17 square units

Step-by-step explanation:

There are several ways you can divide this figure into areas that are easily computed.

One that comes to mind is to consider the triangle that would include the missing area at lower right. That triangle would have a base of 6 and a height of 8, so an area of ...

  A = (1/2)bh

  A = (1/2)(6)(8) = 24 . . . . square units

The part at lower right that is cut out is a sort of reversed L-shape that is 3 squares along the bottom and 4 more up the side, for a total of 7 squares.

Then the area of the shaded part is ...

  A = 24 - 7 = 17 . . . . square units

3 0
3 years ago
19 6/7 divided by 4 1/8
anygoal [31]
<span>4</span>\frac{188}{231}
Hope this helps!
7 0
3 years ago
PLEASE HELP ME!!!! WILL GIVE 5 STAR, THX, AND BRAINLIEST!!
Elis [28]
E fs ik that for a fact and maybe that’s all?
4 0
3 years ago
Read 2 more answers
can someone give me a good explanation of scientific notation. simple but smart. i’m in algebra 1 honors
Kaylis [27]

Answer:

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It may be referred to as scientific form or standard index form, or standard form in the UK.

3 0
3 years ago
Nathan went shopping for a new camera because of a sale. The store was offering a 40% discount. If the price on the tag was $35,
tia_tia [17]

Answer:

The price after the discount but before the tax is $21

Step-by-step explanation:

Here, we are told there is a price off of 40% on an item that costs $35.

What we want to calculate is the value of what the price would be before the tax

We proceed by finding 40% of $35

Mathematically, that would be;

40/100 * 35 = $14

The price of the item before the tax is thus;

35-14 = $21

4 0
3 years ago
Other questions:
  • 3y+10/4 =2y <br> What is the value of y?
    6·2 answers
  • Todd is 30 years old. If his target heart rate during aerobic activity is 60-90 % of his maximum heart rate, how fast should his
    15·1 answer
  • 100 POINTS!! somebody please answer! but it has to correct!
    11·1 answer
  • A dolphin jumped up out of the water and back into the water in a parabolic path. (H) height (t) seconds . H=-8(t-0.5)^2+2 . How
    9·1 answer
  • What percent of 50 is 18?
    5·2 answers
  • What is the percent change from 41 to 95?
    5·1 answer
  • Add 5+[-8] what is the awenser or sum.
    6·1 answer
  • What is equalivent to 5=4z+13
    11·1 answer
  • Rob saves £500 in his bank account.
    13·1 answer
  • The distance between Matt’s house and his school is 3 inches on the map. The actual distance is 1.5 miles. What is the scale of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!