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3 years ago

Does anyone know how to do the question attached? The topic is on surds.

Mathematics

1 answer:

AnnyKZ [126]3 years ago

5 0

Answer:

Area of the ∆ = 4cm²

I hope this helps you...

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From the sum of 3a^2-ab-2b^2 and 2a^2+5ab-3b^2 subtract a^2-3ab-4b^2

Luden [163]

4a^2+7ab-b^2

Step-by-step explanation:

Add the first two equations together:

3a^2-ab-2b^2

+ 2a^2+5ab-3b^2

---------------------------

5a^2+4ab-5b^2

Subtract that answer from the remaining trinomial:

5a^2+4ab-5b^2

- a^2-3ab-4b^2

--------------------------

4a^2+7ab-b^2

3 0

3 years ago

Read 2 more answers

NEED HELP PLEASE IM BEGGING YOU PLEASE!!!!!<br> NEED HELP WITH BOTH PLEASE

UkoKoshka [18]

Answer:

14) F

15) D

Step-by-step explanation:

You have 80 minutes on a CD, minus the time you burned would equal the time you have left on the CD.

To find mark down, you multiply the percentage to the original price, and then subtract the answer to the original price.

8 0

4 years ago

What is the range of this set of heights in centimeters? {140, 166, 132, 165, 152, 168, 181, 158, 173, 171, 180, 182, 163, 177,

Sholpan [36]

Answer:

Step-by-step explanation:

Given:

140, 166, 132, 165, 152, 168, 181, 158, 173, 171, 180, 182, 163, 177, 180, 142, 147, 149, 178

Arranging in ascending order (from the lowest to the highest)

= 132, 140, 142, 147, 149, 152, 158, 163, 165, 166, 168, 171, 173, 177, 178, 180, 180 181, 182

Range = highest number - lowest number

= 182 - 132

= 50

8 0

3 years ago

Taylor can clean pools at a constant rate of pools per hour. How

Bogdan [553]

Answer:

it depends on how many he can clean in a single hour.

if he cleans 2/5 pools thats 10 pools in 25 hours

Step-by-step explanation:

if he cleans one pool per hour, thats 25 pools in 25 hours. if he can clean 4 pools an hour, thats 100 pools in 25 hours.

3 0

3 years ago

Dividing and Multiplying functions

Likurg_2 [28]

Ok, so first of all, you need to plug the functions into their places. Since f(x) = 6x and g(x) = x + 3, you'll plug them in accordingly:
(6x) * (x + 3).

Then you'll multiply them together to get 6x^2 + 18x. You can't combine like terms then because of the square in the first term.

So your final answer is 6x^2 + 18x.

I hope this helps you at least a little bit. Thanks for your time!

4 0

4 years ago