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Naya [18.7K]
3 years ago
8

I need help! Will this would be very appreciated!pls

Mathematics
1 answer:
elena-s [515]3 years ago
6 0

Answer:

No real

solution

Step-by-step explanation:

Firstly, let us check if we would be having a real solution

We start by rewriting the equation

We have this as;

8x^2 -25x + 24 = 0

We proceed to get the discriminant

Mathematically, we have this as;

D = b^2 - 4ac

b is the coefficient of x which is -25

a is the coefficient of x^2 which is 8

c is the last number which is 24

So we have;

D = (-25)^2 - 4(8)(24)

D = 625 - 768 = -143

Since the value of the discriminant is negative, there cannot be real roots

What we have as solution are complex roots

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I was taught how to do this but I need help, as I’m having a brain malfunction
pashok25 [27]

Answer:

theta = 135+ n360

theta = 225+n360

Step-by-step explanation:

-sqrt(2) = 2 cos theta

Divide each side by 2

-sqrt(2)/2 =2/2 cos theta

-sqrt(2)/2 = cos theta

Take the inverse cos on each side

arccos (-sqrt(2)/2) =  arc cos(cos theta)

135 = theta

Now remember this only gives you the value between 0 and 180 degrees.

Take 360 minus the value found to get the other angle since this is cosine

360 -135 = 225

Now remember this is cyclical, so we can add 360 to each of these values and we will get the same amount

theta = 135+ n360

theta = 225+n360


5 0
3 years ago
4.537 to the nearest hundred ​
Anettt [7]

Answer:

4.54

Step-by-step explanation:

I think you meant hundredth and if so the answer is 4.54

I hope I helped!!

7 0
3 years ago
Solve for L:<br> P=2L+2W
Korvikt [17]

Answer:

L=\frac{1}{2}P-W

Step-by-step explanation:

Let's solve for L.

P=2L+2W

Step 1: Flip the equation.

2L+2W=P

Step 2: Add -2W to both sides.

2L+2W+-2W=P+-2W

2L=P-2W

Step 3: Divide both sides by 2.

\frac{2L}{2}=\frac{P-2W}{2}

L=\frac{1}{2}P-W

Answer:

L=\frac{1}{2}P-W

4 0
3 years ago
What is the percent decrease if the original price is $582 and it went down 30%
Semenov [28]

Answer:

30%

Step-by-step explanation:

What is the percent decrease if the original price is $582 and it went down 30%

or decreased 30%

Check:

582 x 0.70 = 407.4

582-407.4=174.6

174.6/582= 0.3

5 0
3 years ago
Find the prime factorization of 504
BaLLatris [955]
It's not a prime number but
Answer : 23 • 32 • 7
4 0
3 years ago
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