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2 years ago

Simplify. 1/4(x-2/5)-1/3(3/4x-1/2)

Mathematics

2 answers:

Schach [20]2 years ago

7 0

Answer:

Exact Form:

1/15

Decimal Form:

0.0¯6

Step-by-step explanation:

ludmilkaskok [199]2 years ago

3 0

Answer: 1/15 or 0.06 (repeating)

Step-by-step explanation:

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I need the answers to #1,#2 and #3

Ede4ka [16]

The answers are #1 45 #2 24 #3 10

6 0

3 years ago

What is the vertex of the graph of the function below? y = x2 + 8x + 12

Vera_Pavlovna [14]

Hello,

$The\,\,formula\,\,for\,\,the\,\,vertex\,\,of\,\,a\,\,quadratic\,\,equation\,\,is: \\ V=( -\frac{b}{2a},f(-\frac{b}{2a}) )$

That means that we must first obtain x, then we replace x in the function to get y, so:

$x=- \frac{b}{2a} \\ \\ x=- \frac{8}{2*(1)} \\ \\ \boxed{x=-4} \\ \\ Reeplacing \,\,x: \\ y=(-4)^{2} +8*(-4)+12 \\ y=16-32+12 \\ \boxed{y=-4}$

Answer: V=(-4 , -4)

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3 years ago

Find the value of (-64)2/3

Marizza181 [45]

Answer:

-42.66666...

Step-by-step explanation:

-64 * 2/3 is -42.66666...

well, according to the calculator.

7 0

3 years ago

Read 2 more answers

Fraction:

Zanzabum

Answer + step-by-step explanation:

7/10 as a decimal would be 0.7.

7/10 or 0.7 in a word form would be seven tenths.

Hope this helps, if my answer or explanation is wrong

feel free to message me in the comments :).

- genius423

6 0

3 years ago

Prove this trigonometric identity sin 3x/sin x - cos 3x/cos x =2

Sveta_85 [38]

Step-by-step explanation:

LHS= sin 3x/sin x - cos 3x/cosx

Taking LCM,

=sin3xcosx- cos3xsinx

sinxcosx

=sin(3x-x)

sinxcosx

= 2sin2x

2sinxcosx

= 2sin2x

sin2x

= RHS.

Proved.

8 0

3 years ago