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seraphim [82]
3 years ago
5

Help me please need help​

Mathematics
1 answer:
IrinaK [193]3 years ago
7 0

Step-by-step explanation:

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3. Find the value of m for which the equation mx + 14 = 12 + 2 has one repeated root.
umka2103 [35]

Using the discriminant of a quadratic equation, it is found that the quadratic equation would have one repeated solution for m = -3.

<h3>What is the quadratic equation?</h3>

The quadratic equation is given as follows:

mx² + 12x - 12.

<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

A quadratic equation is modeled by:

y = ax^2 + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

  • If \mathbf{\Delta > 0}, it has 2 real solutions.
  • If \mathbf{\Delta = 0}, it has 1 real solutions.
  • If \mathbf{\Delta < 0}, it has 2 complex solutions.

For this problem, the coefficients are:

a = m, b = 12, c = -12.

Hence the discriminant is:

b² - 4ac = 144 + 48m.

We want it to be of 0, hence:

144 + 48m = 0

m = -144/48

m = -3.

More can be learned about the discriminant of a quadratic equation at brainly.com/question/19776811

#SPJ1

7 0
2 years ago
A car travels at an average speed of
zheka24 [161]
I think it is 264 divided by 48 = 5.5 (5 and a half hours)

May want to check but I think this is correct
8 0
4 years ago
Please answer correctly !!!! Will mark BRAINLIEST !!!!!!!
Reika [66]

Answer:

g(n) = \frac{11+5n}{3}

Step-by-step explanation:

Given

3m - 5n = 11

Rearrange making m the subject

Add 5n to both sides

3m = 11 + 5n ( divide both sides by 3 )

m = \frac{11+5n}{3} , thus

m = g(n) = \frac{11+5n}{3}

4 0
3 years ago
The ratio of bous to girls in the school is 1 to 4. If there are 20 girls, how many boys are there?
anyanavicka [17]

if there's 1 boy to every 4 girls, there's going to be 5 boys for every 20 girls

6 0
4 years ago
Read 2 more answers
Write the coordinates of the vertices after a translation 4 units right and 4 units down.
m_a_m_a [10]

Answer:

  • T'(1, -2)
  • U'(1, -1)
  • V'(2, -1)
  • W'(2,-2)

Step-by-step explanation:

Translation 4 right adds 4 to each x-coordinate.

Translation 4 down subtracts 4 from each y-coordinate.

Doing this arithmetic gives you the results above.

8 0
3 years ago
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