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Brut [27]
3 years ago
9

Evaluate c -2 when c equals 7.

Mathematics
1 answer:
kherson [118]3 years ago
6 0

Answer:

the answer is 5

Step-by-step explanation:

hope it help

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Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t
Katyanochek1 [597]
  • Discriminant Formula: b² - 4ac, with a = x^2 coefficient, b = x coefficient, and c = constant

So firstly, using our equation plug in the values into the discriminant formula and solve as such:

(-7)² - 4 × 3 × 4

49 - 48

1

So our discriminant is 1. <u>Since 1 is positive and a perfect square, this means that there are 2 real, rational solutions.</u>

8 0
3 years ago
Hey guys!! U think u can help me? Plss :))
slavikrds [6]

Answer:

A: The plant grows 1CM every day

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Simplify: 1/3(6ab-9b)+2/3(9ab+12)
tangare [24]
Not sure how simplified you need it...

8ab-3b+8
6 0
3 years ago
Find the area of the figure. Round to the nearest tenth
Reika [66]

Answer:

Find the area of each triangle and then add it up. As you are aware, to find the area of a triangle the equation is B times Height divided by 2.  And to make it easier do the top left triangle and the top right triangle, add them together and then divide that by 2.

Step-by-step explanation:

3 time 5 equals 15 divided by 2 equals 7.5

5 times 8 equals 40 divided by 2 equals 20

7.5 plus 20 equals 27.5

27.5 times 2 equals 55

therefor your answer should be 55m

3 0
2 years ago
Helpppp a girl outtt i will give brainlest
Ivenika [448]

Answer:

Y= 40

Step-by-step explanation:

I know the y equals 40 because I used

a {}^{2}  + b {}^{2}  = c {}^{2}

But for z and x I got stuck, so I hope I helped you a little to move forward with this problem.

YOU CAN DO THIS!!!!!

7 0
3 years ago
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