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3 years ago

Here is the next question i need help with PLEASE HELP

Mathematics

2 answers:

Rasek [7]3 years ago

8 0

Rc = 60×2=120
you chose the right answer

pogonyaev3 years ago

7 0

Each angle is 60. so doubl;e that 60 * 2 = 120

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If y= 1/3x and x= -18, find y

jarptica [38.1K]

$\displaystyle \bf \\
x = -18 \\\\
y = \frac{1}{3}\cdot x = \frac{1}{3}\cdot -18 = \frac{-18}{3} = \boxed{\bf -6}$

3 0

3 years ago

What are the real and complex solutions of the polynomial equation? x^4-41x^2=-400. *work needed*

pickupchik [31]

<h3>Answer: x = -5, -4, 4 and 5.</h3><h3>All four zeros are real solutions.</h3>

Step-by-step explanation:

Given the polynomial equation $x^4-41x^2=-400$ .

Adding 400 on both sides to get rid 400 from right side and set 0 on right side, we get

$x^4-41x^2+400=-400+400$ .

$x^4-41x^2+400=0$ .

Factoring by product sum rule.

We need product of 400 and sum upto -41.

We can see that 400 = -25 × -16 = 400 and -25-16 = -41.

Therefore,

$x^4-25x^2-16x^2+400=0$

Making it into two groups, we get

$(x^4-25x^2)+(-16x^2+400)=0$

Factoring out GCF of each group, we get

$x^2(x^2-25)-16(x^2-25)=0$

$(x^2-25)(x^2-16) =0$

Factoring out $(x^2-25)$ and $(x^2-16)$ separately by difference of the squares identity $a^2-b^2=(a-b)(a+b)$ , we get

$(x^2-25) = x^2-5^2= (x-5)(x+5)$ and

$x^2-16 = x^2-4^2 =(x-4)(x+4)$ .

Therefore,

$(x-5)(x+5)(x-4)(x+4) =0$

Applying zero product rule,

x-5=0

x+5=0

x-4=0 and

x+4=0.

Therefore,

<h3>x = -5, -4, 4 and 5.</h3><h3>All four zeros are real solutions.</h3>

6 0

3 years ago

Juan has 12 muffins. He puts 1/4 of the muffins in a bag. How many muffins does Juan put in the bag?

Kitty [74]

12 divided my four is 3. So three is your answer.

3 0

3 years ago

Read 2 more answers

Help lol pleaseeeee<br> I don’t know what to do

Tanya [424]

I think the answer is 4

If my memory serves me right then you have to do Q3-Q1

This is 6-2

The answer would be 4

Hope this is right and it helps :)

5 0

3 years ago

Read 2 more answers

How do I make 7 x 2 + 5 =x a 2 step equation

Alex17521 [72]

Answer:

7x2=

14+5=

x a

Step-by-step explanation:

You usually don't write the answer after the equal symbol. You could, or can, write the answer after the equal symbol to make it into a 2 step equation.

7x2= 14

14+5= x a

4 0

3 years ago