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Elodia [21]
2 years ago
5

PLEASE HELP ME ASAP! Is my answers correct?

Mathematics
1 answer:
meriva2 years ago
6 0
The 2nd one, with the pink is correct it is reflecting across the x axis
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Which of the following describes the square root of 41. 5,6 6,7 20,21 40,42
cestrela7 [59]

Answer:

6,7

Step-by-step explanation:

the squre root of 41 is 6.403

3 0
3 years ago
HELPP
Anvisha [2.4K]

Answer:

the first one

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Can anyone pls help me with this I'll mark as brainlist for correct answer please do explain in detail each answers Ty! (I'm pre
densk [106]

<u>Question 8</u>

a^2 + 7a + 12

= (a+3)(a+4)

When factorising a quadratic, the product of the two factors should equal the constant term (12), and the sum of the two factors should equal the linear term (7). To find the two factors, list out the factors of 12 (1x12, 2x6, 3x4) and identify the pair that adds up to 7 (3+4).

An alternative method if you get stuck during your exam would be to solve it algebraically using the quadratic formula and then write it in the factorised form.

a = (-7 +or- sqrt(7^2 - 4(1)(12)) / 2(1)

= (-7 +or- sqrt(1))/2

= -3 or -4

These factors are the negative of the values that would go in the brackets when written in factorised form, as when a = -3 the factor (a+3) would equal 0. (If it were positive 3 instead, then in the factorised form it would be a-3).

<u>Question 10</u>

-3(x - y)/9 + (4x - 7y)/2 - (x + y)/18

Rewrite each fraction with a common denominator so you can combine the fractions into one.

= -6(x - y)/18 + 9(4x - 7y)/18 - (x + y)/18

= (-6(x - y) + 9(4x - 7y) - (x + y)) /18

Expand the brackets and collect like terms.

= (-6x + 6y + 36x - 63y - x - y)/18

= (29x - 58y)/18

= 29/18 x - 29/9 y

7 0
2 years ago
F(5) if f(x) = 3x - 2​
iragen [17]

Answer:

f(5)=12

Step-by-step explanation:

Replace all x by 5

f(5)=3(5)-2

multiply 3 and 5 together

f(5)=15-2

Simplify:

f(5)=13

Hope this helps!

7 0
2 years ago
Read 2 more answers
What is <br> g(x)= 7/8(7) - 1/2
laila [671]
Answer: g=3/56

Hope this helps you
7 0
3 years ago
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