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Tema [17]
3 years ago
6

Someone help me with number 12 please please

Mathematics
2 answers:
lina2011 [118]3 years ago
8 0

Answer:

Step-by-step explanation:

So let’s plug the numbers in!

So that would be

3(-7)-9-8(-3)

=-21-9+24

=-6

So the answer is -6

AleksAgata [21]3 years ago
3 0

you would have to do the numbers and letters firdt and then add them up and then lick an

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Claire Judice
Julli [10]

Answer:

The values of 'x' are -1.2, 0, 0, -4i or 4i.

Step-by-step explanation:

Given:

The equation to solve is given as:

5x^5+6x^4+80x^3+96x^2=0

Factoring x^2 from all the terms, we get:

x^2(5x^3+6x^2+80x+96)=0

Now, rearranging the terms, we get:

x^2(5x^3+80x+6x^2+96)=0

Now, factoring 5x from the first two terms and 6 from the last two terms, we get:

x^2(5x(x^2+16)+6(x^2+16))=0\\x^2(x^2+16)(5x+6)=0

Now, equating each factor to 0 and solving for 'x', we get:

x^2=0\\x=0\ and\ 0\\\\5x+6=0\\x=\frac{-6}{5}=1.2\\\\x^2+16=0\\x^2=-16\\x=\sqrt{-16}=\pm 4i

There are 3 real values and 2 imaginary values. The value of 'x' as 0 is repeated twice.

Therefore, the values of 'x' are -1.2, 0, 0, -4i or 4i.

4 0
3 years ago
Gallon of gas: $2.15, 15% markup
Irina18 [472]
The answer would be $2.47
3 0
3 years ago
!!!ASAP 13 points!!!!The isosceles triangle theorem says "If two sides of a triangle are congruent,
slega [8]

b

Step-by-step explanation:

because it will be right always because if you mutiply all of them then you get your right answer

8 0
3 years ago
Read 2 more answers
Make x the subject of the formula
juin [17]

Step-by-step explanation:

first cirscross it come 2nˆ4X=3L4mˆ2and divide each by 2nˆ4 to make X alone and it come, X=3L4mˆ2/2nˆ4. try my best ,if i am wrong tell me.

5 0
3 years ago
Which algebraic expression is equivalent to the expression below? 5(9x +11) +2x A. 47x + 55 B. 102x C . 47x + 11 D. 47x - 55
fgiga [73]
47x + 55

5(9)=45 then u add the 2 which makes 47x

5(11)= 55

Then you just combine
7 0
3 years ago
Read 2 more answers
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