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Varvara68 [4.7K]
3 years ago
8

Solve each system by substitution. 11) 3x - y = 20 y=-2

Mathematics
2 answers:
ehidna [41]3 years ago
8 0

Answer:

lol you stupid how do you not know

Step-by-step explanation:

lol

Vesnalui [34]3 years ago
5 0
Hello there! I think x=6 because you would substitute “-2” for “-y” and when you multiply two negatives they turn into a positive. You then put your “2” on the other side of the equal marks. Then just do 3x/18 and you get 6.
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Question 6. Which expression is equivalent to this expression? x(2x + 3)
suter [353]

Answer:

The answer is D

You have to distribute the x to the 2x + 3 equation

This will result in 2x^2 + 3x

5 0
3 years ago
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What number is between 4 1/5 and 4.03
tatiyna

Answer:

I would say your right as 4 ⅕ would be 4.20.

3 0
3 years ago
30 pts + BRAINLIEST
ivanzaharov [21]

Answer:

Number of permutations = 5040

Step-by-step explanation:

We are given the word 'INNOVATIVE', that has total 10 letters.

Now, we are asked to form words using exactly 4 letters at a time i.e. out of 10 letters we are using 4.

Therefore, the number of permutations that can be formed using 4 letters are = P(10,4)

i.e. 10_{P_{4} }

= \frac{10!}{(10-4)!}

= \frac{10!}{6!}

= \frac{10*9*8*7*6!}{6!}

= 10*9*8*7

= 5040

8 0
3 years ago
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Use the following diagram to answer question 4 and 5
baherus [9]

Answer:

3x-13+2x+4=116( the sum of two interior angle is epual to the sum of exterior angle )

5x =116-9

5x=107

x=21.4 degree

then

angle a= 3*21.4-13

a=51.2degree

angle b=2*21.4+2

b =44.8degree

Step-by-step explanation:

plz make me brainliest

3 0
3 years ago
Please help i always give brainliets and thanks
pav-90 [236]

Answer:

(3)

Step-by-step explanation:

(1), (2) and (4)

can be written as Fr= p1-p2, F and r are inversely proportional

(3) r is directly proportional with F which is opposite to the given formula

hence this is incorrect

6 0
4 years ago
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