You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now 
please

Answers

Answer 1
Answer: Well, if you find the area of the two identical triangles I suppose you could add them together to find the area of the parallelogram

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What is 4/12 as a unit fraction

Will mark brainliest
2+2-1=x

Answers

Answer:

2+2 is 4 minus 1 is 3 quick math

Step-by-step explanation:

x=3

Answer:

3

Step-by-step explanation:

2+2 is 4-1 that’s 3 quick math

Which values of p and q would make the value of the following expression equal to 58i? (3 – 7i)(p + qi)i

Answers

we are given

(3-7i)(p+qi)i=58i

firstly, we will simplify left side

and then we can compare it with right side

so, we can distribute

(3p+3qi-7pi-7qi^2)i=58i

(3p+3qi-7pi+7q)i=58i

we have i on both sides

so,i will get cancelled

(3p+3qi-7pi+7q)=58

(3p+7q+(3q-7p)i)=58

we can also write as

(3p+7q)+(3q-7p)i=58+0*i

now, we can compare

and we get

3p+7q=58

3q-7p=0

now, we can solve for p and q

we get

q=7,\:p=3.............Answer


Answer:

For short the answer is A.      p = 3 , q = 7

Solve the equation
4.8y-6.9=3.18
Explain your thinking

Answers

4.8y - 6.9 = 3.18 
4.8y= 3.18 + 6.9 (I added 6.9 to both sides)
4.8 y = 10.08 (I added 3.18 by 6.9)
y = 2.1 (I divided 4.8)

Hope this helps!!
the point of this equation is to figure out the value of the y variable. to do this, you'll need to get the y variable by itself on one side of the equation. 

so first you would add 6.9 to 3.18. 
the equation would now look like this: 
4.8y=10.08 


you would then divide 4.8 by 10.08. this is the last step to getting the y varible by itself on one side of the equation and ultimately the value of y! 
the equation now looks like this: 
y=2.1 

y=2.1 is you answer!
Good luck! 

3. Find a solution to the following system of equations.
-3x + 3y = -9
-3x + y = 7

Answers

Answer:

x = 5

y = 2

Step-by-step explanation:

-3x + 3y = -9

3y = 3x - 9

Equation 1. y = x - 3

-3x + y = 7

Equation 2. y = 3x + 7

So, put number 1 equation to number 2's y :

x - 3 = 3x + 7

x -3x = 7 + 3

-2x = 10

2x = 10

x = 10/2

x = 5

And, put x, which is 5 , to the any equation to figure out the y.

This time, I'll use equation number 1.

y = 5 - 3

y = 2

3. In the diagram below of right triangle ACB, altituDB find the length of CD in simplest radical form4,

Answers

ACB, ACD and DCB are all right triangles. We can then represent the relationships of their legs through the Pythagorean theorem. 

For triangle ACB:
7^2=(AC)^2+(BC)^2     (1)

For triangle ACD:
(AC)^2=3^2+(CD)^2     (2)

For triangle DCB:
(BC)^2=(CD)^2+4^2     (3)

To make things simpler, we let
(AC)=x
(BC)=y
(CD)=z

Hence we have:
49=x^2+y^2     (1)
y^2=z^2+16     (2)
x^2=9+z^2       (3)

To solve for the unknown c, let us first substitute equation (2) in (1)
49=x^2+z^2+16
33=x^2+z^2     (4)

Then, we can substitute equation (3) in (4)
33=9+z^2+z^2
24=2z^2
z^2=12
z=2sqrt(3)

Thus, the length of z or (CD) is 2sqrt(3) in simplest radical form.



What does 3/10 + 16/100 equal?

Answers

the answer i have for you is 0.46
Okay so what you want to do is find the common factor okay? So the simplest one would be one hundred, so 3/10 *10 would be? Yes 30/100, and 16/100 just stays the same. So 30/100+16/100 is?46/100 if you wan to simplify it, 46/100 divided by two is 23/50. So yeah.