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sasho [114]
2 years ago
15

Please may somebody explain how to do the question below. Thanks

Mathematics
2 answers:
brilliants [131]2 years ago
7 0

Answer:

So basically this a rational problem first take the 5 and the check thing I don't remember name but it on a calculator times x-9 by -3/4 then times all of that by -4/5.

ryzh [129]2 years ago
4 0

Answer:

Step-by-step explanation:

e

You might be interested in
Simplify -3(y+5)+3(2y+6)
likoan [24]
-3(y + 5) + 3(2y + 6)
-3y - 15 + 6y + 18
3y + 3

Answer:
3y + 3

Hope this helps.
5 0
3 years ago
Read 2 more answers
1. Kalena was asked to prove ifx(x - 1)(x + 1) = x3 - X represents a polynomial identity. She
Verdich [7]

Answer:

C. Kalena made a mistake in Step 3. The justification should state: -x²

+ x²

Step-by-step explanation:

Given the function x(x - 1)(x + 1) = x3 - X

To justify kelena proof

We will need to show if the two equations are equal.

Starting from the RHS with function x³-x

First we will factor out the common factor which is 'x' to have;

x(x²-1)

Factorising x²-1 using the difference of two square will give;

x(x+1)(x-1)

Note that for two real number a and b, the expansion of a²-b² using difference vof two square will give;

a²-b² = (a+b)(a-b) hence;

Factorising x²-1 using the difference of two square will give;

x(x+1)(x-1)

Factorising x(x+1) gives x²+x, therefore

x(x+1)(x-1) = (x²+x)(x-1)

(x²+x)(x-1) = x³-x²+x²-x

The function x³-x²+x²-x gotten shows that kelena made a mistake in step 3, the justification should be -x²+x² not -x-x²

6 0
3 years ago
Please help me. I need help thank you.
STatiana [176]

Answer:

C.

Step-by-step explanation:

the ratio is 1:2

so,

4*2=8\\7*2=14\\1*2=2

the only shape with those numbers is C

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

Stay Brainy!

7 0
3 years ago
Find a general formula for the nth term of the geometric series with
Citrus2011 [14]

Answer:I think it would be the third one

Step-by-step explanation:

8 0
2 years ago
Select the best answer for the question.
wel
The answer should be B idk really
7 0
3 years ago
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