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spayn [35]
3 years ago
7

What value of x is in the solution set of -2(3x + 2) > -8x + 6? 0 -6 05 05 O 6

Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

x>5

Step-by-step explanation:

-2(3x+2)>-8x+6 do the () first

-6x-4>-8x+6 add 8x to both sides

2x-4>6  add 4 to both sides

2x>10 divide by 2

x>5

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$#4 find the value of x. Round answer to nearest tenth please
Sonja [21]

Answer:

12.9

Step-by-step explanation:

sin 59 = opposite/hypotenuse

opposite is x, the dimension facing the angle 59

hypotenuse is the longest side = 15

sin 59 = x/15

x = 15sin59 = 15 x 0.8572 =12.858 = 12.9 in the nearest tenth

3 0
3 years ago
Question
Kay [80]

Answer:

f(x)=2(x-2)(x^2+64)

Step-by-step explanation:

A standard polynomial in factored form is given by:

f(x)=a(x-p)(x-q)...

Where <em>p</em> and <em>q</em> are the zeros.

We want to find a third-degree polynomial with zeros <em>x</em> = 2 and <em>x </em>= -8i and equals 320 when <em>x </em>= 4.

First, by the Complex Root Theorem, if <em>x</em> = -8i is a root, then <em>x </em>= 8i must also be a root.

Therefore, we acquire:

f(x)=a(x-(2))(x-(-8i))(x-(8i))

Simplify:

f(x)=a(x-2)(x+8i)(x-8i)

Expand the second and third factors:

=(x+8i)x+(x+8i)(-8i)\\\\=(x^2+8ix)+(-8ix-64i^2)\\\\=(x^2)+(8ix-8ix)+(-64i^2)\\\\=x^2-64(-1)\\\\ =x^2+64

Hence, our function is now:

f(x)=a(x-2)(x^2+64)

It equals 320 when <em>x</em> = 4. Therefore:

320=a(4-2)(4^2+64)

Solve for <em>a</em>. Evaluate:

320=(2)(80)a

So:

320=160a\Rightarrow a=2

Our third-degree polynomial equation is:

f(x)=2(x-2)(x^2+64)

7 0
3 years ago
Find the measure of angle 2<br><br> Correct Answer is 2
ExtremeBDS [4]

No, the answer is not 2. The measure of angle 2 is 128°. You can find this by 26×4=104 -> 360-104=256 ->256÷2=128

7 0
3 years ago
Read 2 more answers
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Studentka2010 [4]
I think the answer would be 9? Correct me if I’m wrong
7 0
3 years ago
HELP ASAP!!<br>-4y + 7 + 9y - 3​
gulaghasi [49]

Answer:

5y+4

Step-by-step explanation:

Combine Like Terms:

=−4y+7+9y+−3

=(−4y+9y)+(7+−3)

=5y+4

5 0
3 years ago
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