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umka21 [38]
3 years ago
13

QUICK HELP!!!!!!!!!!!!!!!!

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

Its C im pretty sure. Also loveee your pfp!

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Factor -7x^3+21x^2+3x-9 by grouping. what is the resulting expression?
Daniel [21]

Answer:

c) (3-7x^2)(x-3)

Step-by-step explanation:

-7x^3+21x^2+3x-9

Factor out a -7x^2 from the first two terms and a 3 from the last two terms

-7x^2 (x -3) +3(x-3)

Now factor out (x-3)

(x-3) (-7x^2+3)

Rearranging)

(x-3) (3-7x^2)

8 0
3 years ago
Factor this polynomial 6x^2 + 19x – 7.
kondaur [170]

Answer:

(3x-1) (2x+7)

8 0
3 years ago
What is y=5/6x-3 in standard form
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The answer is negative 2.5 why because...
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3 years ago
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Please solve this question withvfull process i will wark as braineast a) After allowing 5 % discount on the marked price of a ra
schepotkina [342]

Answer:

Let the marked price be x

Discount % = 10%

Discount = 10\% \times x = 0.1x10%×x=0.1x

Cost after discount = x-0.1x = 0.9x

10%vat is charged on it

Cost including VAT = 0.9x+0.1(0.9x)=0.99x0.9x+0.1(0.9x)=0.99x

We are given that  it's price became rs 1672

So, 0.99x = 1672

x=\frac{1672}{0.99}x=0.991672

x=1688.88

Discount = 0.1x=0.1(1688.88)=168.888

Hence The discount

7 0
3 years ago
Glen hiked 14 miles in 4 hours. What was his average rate of speed?
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3.5 miles per hour :) hopefully this helps!
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