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3 years ago

Solve the equation for all real solutions in simplest form. 5c2 + 7c +1 = 2c

Mathematics

2 answers:

mel-nik [20]3 years ago

7 0

Answer:

0.4

Step-by-step explanation:

C = 1/5

5 x 1/5 x 2 + 7 x 1/5 +1 = 2 x 1/5 or 0.4

disa [49]3 years ago

4 0

There are no real solutions for this equation. All the solutions are imaginary.

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If 34 percent of 60 million barrels is gasoline and 29 percent of 60 million barrels is desil how many more barrels are there of

Andre45 [30]

The difference between 34 percent and 29 percent is :

34 - 29 = 5 percent.

60 million times 5% = 60 x 0.05 = 3 million

to check:

60 million x 34% = 20,400,000 barrels

60 million x 29% = 17,400,000 barrels

20,400,000 - 17, 400,000 = 3,000,000 barrels

There are 3 million more barrels of gasoline.

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3 years ago

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If a 156 pound 12yo falls 10 feet and lands on their head, will they be knocked out?

Amanda [17]

Answer:

Porbably

Step-by-step explanation:

they fell 10 feet and landed on they head

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2 years ago

What are the values of sin α and tan α, if:<br> cosα=0.6

olganol [36]

Positive cosine is first or fourth quadrant. So we don't know the sign of the sine or the tangent.

Everybody's favorite right triangle is 3/4/5 and here we have

$\left(\dfrac 3 5 \right)^2 + \left(\dfrac 4 5 \right)^2 = 1$

So if

$\cos \alpha = 0.6 = \dfrac 3 5$

then

$\sin \alpha = \pm \dfrac{4}{5} = \pm 0.8$

and

$\tan \alpha = \dfrac{\sin \alpha}{\cos \alpha} = \dfrac{\pm 0.8}{0.6}=\pm \dfrac 4 3$

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3 years ago

Michela’s skateboard ramp is at an incline of 40°. When she attempts a trick on the ramp, she finds that it is too steep. She ad

marissa [1.9K]

Answer:

22.7604763 degrees

Step-by-step explanation:

Note that the answer is NOT 20 degrees.

She adjusted the ramp to half the original <em>incline</em>

Therefore we have tan 40 = x = 0.839099631.

We want an incline of y degrees where tan y = x/2 = 0.839099631/2 = 0.419549815

Taking the arctan of both sides, we get

y = arctan(0.419549815) = 22.7604763 degrees

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3 years ago

Which statement about this equation is true?

Viktor [21]

The equation has no solution because:

5(n+10)=5n+10n
5n+10n=5n+10n
I subtract 5n from both sides
10n=10n
Only one side is supposed to have the variable which is n, so the equation has no solution.

4 0

3 years ago

Solve the equation for all real solutions in simplest form. 5c2 + 7c +1 = 2c​

Solve the equation for all real solutions in simplest form. 5c2 + 7c +1 = 2c