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3 years ago

Write an algebraic expression for the phrase five less than the product of six and N

Mathematics

1 answer:

GenaCL600 [577]3 years ago

6 0

Answer:

6N - 5

Step-by-step explanation:

five less than the product of six and N: 6N

five less than the product of six and N: 6N - 5

Answer: 6N - 5

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Solving quadratic equations with complex solutions x2 + 4x + 8 = 0.

Daniel [21]

Answer:

$\large\boxed{x=-2\pm2i}$

Step-by-step explanation:

$x^2+4x+8=0\qquad\text{subtract 8 from both sides}\\\\x^2+4x+8-8=0-8\\\\x^2+2(x)(2)=-8\qquad\text{add}\ 2^2\ \text{to both sides}\\\\x^2+2(x)(2)+2^2=-8+2^2\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+2)^2=-8+4\\\\(x+2)^2=-4\iff x+2=\pm\sqrt{-4}\\\\x+2=\pm\sqrt{(4)(-1)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\x+2=\pm\sqrt4\cdot\sqrt{-1}\qquad\text{use}\ \sqrt{-1}=i\\\\x+2=\pm2\cdot i\qquad\text{subtract 2 from both sides}\\\\x=-2\pm2i$

4 0

3 years ago

Find the value of x that makes the equation true: 7x = 70.

stich3 [128]

Answer: x = 10

Step-by-step explanation: 7x10 = 70

7 0

3 years ago

Read 2 more answers

levacccp [35]

Answer:

ON = KJ

Step-by-step explanation:

JKL = NOP

We know the angles match

<J = <N

<K = <O

< L = <P

And we know

JK = NO

KL = OP

JL = NP

We are looking for ON = KJ

5 0

3 years ago

Read 2 more answers

Use distributing property : (-11) x (-15) + (-11) x (-25) plzz answer fast

Semmy [17]

The answer is 440.
What I do is just take the -11 and -15 out of the parentheses so it is -11*-15 and the answer is 165. Then, you take -11 and -25 out of the parentheses and find the answer.
Add them together.
Hope that helped :)

5 0

3 years ago

The size of a television screen is given as 95 cm, correct to the nearest 5 cm.

timofeeve [1]

Answer:

U B = 100.5

Step-by-step explanation:

the upper bound of the size of the television screen= 95.5 since it is corrected to the nearest 5 then the U B =100.5 cm

7 0

3 years ago