3 years ago

The quadratic equation 4x^2 + 12x + k = 0 has equal roots. Find the value of k.

Mathematics

1 answer:

cestrela7 [59]3 years ago

3 0

Answer:Sephardic.org

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Y^2 + 4y- 60 Please help me

Yuki888 [10]

(y + 10)(Y -6) is the factored form if that's what you're looking for

3 0

4 years ago

X.x to the 2nd power =36

Bogdan [553]

Answer:

x = 3

Step-by-step explanation:

$2x^{2}$ = 36

$\sqrt{2x^{2}}$ = $\sqrt{36}$

2x = 6

$\frac{2x}{2}$ = $\frac{6}{2}$

x = 3

hope this helps!

5 0

3 years ago

Solve for x: 2/5 = x/24

lord [1]

Answer:

x=9.6

Step-by-step explanation:

We are given the proportion:

$\frac{2}{5}=\frac{x}{24}$

We are asked to solve for x. Therefore, we must isolate x on one side of the proportion.

x is being divided by 24. The inverse of division is multiplication. Multiply both sides of the proportion by 24.

$24*\frac{2}{5}=\frac{x}{24}*24$

$24*\frac{2}{5}=z$

$24*0.4=x$

$9.6=x$

$x=9.6$

x is equal to 9.6 The complete proportion is $\frac{2}{5}=\frac{9.6}{24}$

3 0

4 years ago

Which variable expression represents the word phrase? the sum of 10 and the product of 7 and a number.

Alborosie

Let y be a number
Note:
The product of 7 and a number is translated into 7y.
The sum of 10 and 7y is translated into 10 + 7y.
So the answer is B.

3 0

3 years ago

Read 2 more answers

A welcoming center has a rectangular playground and a rectangular parking lot that are similar in shape. Each dimension of the p

Dovator [93]

Answer:

The area of the playground is 2.89 bigger than the area of the parking lot

8 0

4 years ago