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bogdanovich [222]
4 years ago
7

Simplify. x² − x − 30÷x² − 12 x + 36

Mathematics
1 answer:
madreJ [45]4 years ago
7 0
(x² - x - 30)/(x² - 12x + 36)
Factor: [(x-6)(x+5)]/[(x-6)(x-6)]
Simplify: (x + 5)/(x - 6)

Reminder that x ≠ 6 (because it would make the expression undefined)

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If g(x)=7x²−4x−3 and h(x)=5x²−12x, find (h∘g)(1)<br><br><br>FIRST BEST ANSWER BRAINLIEST
AURORKA [14]

Answer: See below

Step-by-step explanation:

h\:\circ \:g=h\left(g\left(x\right)\right)

=5\left(7x^2-4x-3\right)^2-12\left(7x^2-4x-3\right)

=5\left(7x^2-4x-3\right)\left(7x^2-4x-3\right)-12\left(7x^2-4x-3\right)

=245x^4-280x^3-130x^2+120x+45-84x^2+48x+36

Simplify:

=245x^4-280x^3-214x^2+168x+81

6 0
3 years ago
Dena uses 7.4 pints of white paint and blue paint to paint her bedroom walls. 2/5 of this amount is white paint, and the rest is
katrin [286]

Answer:

4.44 pints

Step-by-step explanation:

7.4 times 3/5

7 0
3 years ago
Solve pls brainliest
andre [41]

Answer:

Step-by-step explanation:

1. no-has decimal

2. yes, simplifies to -2

3. yes

4. yes

5. no-2.1

8 0
3 years ago
Which expression is equivalent to 63.56 + (–81.47)?
olganol [36]

Answer:

63.56 -81.47= -17.91

Step-by-step explanation:

cause the answer of 63.56 +(-81.47)= -17.91

8 0
3 years ago
Read 2 more answers
Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *​
stealth61 [152]

Answer:

CP = Rs 500

Step-by-step explanation:

Given that,

Selling price of a book, SP = Rs 550

Profit percent = 10%

We need to find the cost price of the book. The formula for profit percent is given by :

P\%=\dfrac{SP-CP}{CP}\times 100\\\\\dfrac{10}{100}=\dfrac{550-CP}{CP}\times 100\\\\\dfrac{1}{10}=\dfrac{550-CP}{CP}\\\\CP=5500-10CP\\\\CP+10CP=5500\\\\11CP=5500\\\\CP=500

So, the cost price of the book is Rs 500.

6 0
3 years ago
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