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4 years ago

2.25k - 20 = 6.5k + 14 plsssssssssssss

Mathematics

2 answers:

Debora [2.8K]4 years ago

4 0

Answer:

The answer to the question is k = -8

Pani-rosa [81]4 years ago

3 0

Answer:

k=-8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Simplify the expression: (5 - 4i) (6 - 2i).

Andreyy89

Answer:

22 - 34i

Step-by-step explanation:

note that i² = - 1

Given

(5 - 4i)(6 - 2i) ← expand factors using FOIL

= 30 - 10i - 24i + 8i²

= 30 - 10i - 24i - 8 ← collect like terms

22 - 34i

8 0

3 years ago

What is the factorization of 3x2 – 8x + 5?

ELEN [110]

we have

$3x^{2} -8x+5$

Equate the expression to zero to find the roots

$3x^{2} -8x+5=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2} -8x=-5$

Factor the leading coefficient

$3(x^{2} -(8x/3))=-5$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$3(x^{2} -(8x/3)+(16/9))=-5+(16/3)$

$3(x^{2} -(8x/3)+(16/9))=(1/3)$

Rewrite as perfect squares

$3(x-(4x/3))^{2}=(1/3)$

$(x-(4x/3))^{2}=(1/9)$

square roots both sides

$(x-\frac{4}{3})=(+/-) \sqrt{\frac{1}{9}}$

$x=\frac{4}{3}(+/-) \frac{1}{3}$

the roots are

$x=\frac{4}{3}+ \frac{1}{3}=\frac{5}{3}$

$x=\frac{4}{3}- \frac{1}{3}=\frac{3}{3}=1$

$3x^{2} -8x+5=3(x-\frac{5}{3})(x-1)=(3x-5)(x-1)$

therefore

<u>the answer is the option</u>

$(3x-5)(x-1)$

6 0

3 years ago

Read 2 more answers

A dilation centered at the origin is applied to the line y = 3x + 5.

charle [14.2K]

The line on the graph is going to be linear.

8 0

3 years ago

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PLEASE EXPLAIN 16a⁴-25???

makkiz [27]

Is this algebra? Or what

5 0

3 years ago

What is -19 = k - 12?

Morgarella [4.7K]

K=-7
-19=k-12
+12 +12
-7=k

8 0

3 years ago

Read 2 more answers