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2 years ago

Factor 25x^2 - 10x - 24

Mathematics

2 answers:

Romashka [77]2 years ago

8 0

(5x+4)(5x-6) is the correct answer

Triss [41]2 years ago

6 0

Answer:

(5x+4) (5x-6)

Step-by-step explanation:

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6. Using the discriminant, determine the value of k that will give 1 solution (i.e. discriminant equals zero) y = kx²-4x + 4

Gwar [14]

Answer:

k = 1

Step-by-step explanation:

Discriminant

$b^2-4ac\quad\textsf{when }\:ax^2+bx+c=0$

$\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}$

$\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}$

$\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}$

As we need to determine the value of k that will give one solution, set the discriminant to zero.

Given equation:

$y=kx^2-4x+4$

Therefore:

a = k
b = -4
c = 4

Substitute these values into the discriminant and solve for k:

$\begin{aligned}b^2-4ac & = 0\\\implies (-4)^2-4(k)(4) & = 0\\16-16k & = 0\\16k & = 16\\\implies k & = 1\end{aligned}$

4 0

1 year ago

-7(-2a+6)=2a-6(-a+7)

Alenkinab [10]

Answer:

$a=0$

Step-by-step explanation:

$-7(-2a+6)=2a-6(-a+7)$

$14a-42=2a+6a-42$

$14a-42=8a-42$

$6a-42=-42$

$6a=0$

$a=0$

6 0

3 years ago

WILL MARK BRAINLIEST

Sergeeva-Olga [200]

Answer:

a.$167.03

Step-by-step explanation:

6 0

1 year ago

HELP PLEASE!!!!! 15 PTS AND BRAINLEST!!!

Schach [20]

The formula for volume is Length x width x height.

Bottom: 18 * 12 * 8 = 1728 cubic centimeters.

Middle: 12 * 8 * 6 = 576 cubic centimeters.

Top = 4 *4*4 = 64 cubic centimeters.

Total: 1728 + 576 + 64 = 2368 cubic centimeters.

8 0

2 years ago

(-8)(-5) = _ What’s the answer

Setler [38]

Answer:

Step-by-step explanation:

-8*-5=40

two negatives equal a positive

4 0

2 years ago

Read 2 more answers