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Lisa [10]
2 years ago
13

Find the value of x for which ABCD must be a parallelogram a. 7 b. 2 c. 1 d. 4

Mathematics
2 answers:
katrin [286]2 years ago
6 0

Step-by-step explanation:

x+3=2x-1

x-2x=-1-3

-x=-4

x=4

likoan [24]2 years ago
5 0
The answer is 4 because a parallelogram have 4 slanted sides in different sizes
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Substitute 2m + n =0 and m + 2n =3
melamori03 [73]

There are several ways you can solve this problem if you're trying to solve for m and n. You can substitute, or systems of equations. However, I'm going to use substitution:

2m + n = 0 => n = -2m

We can input that in for the other equation:

m + 2n = 3 now becomes: m + 2(-2m) = 3

Now we can solve:

m + 2(−2m) = 3

m + −4m = 3

(m + −4m) = 3 (Combine Like Terms)

−3m=3

m = -1

Now we can input that value in to solve for n:

We said that n = -2m, and m = -1, so n = -2(-1):Answer:

n = 2

Your final answer is m = -1, and n = 2, which can also be written as (m,n) = (-1,2)

----------------------

However, if you were solving for m+n:

You would add the two equations!:

2m + n = 0

m + 2n = 3

----------

3m + 3n = 3

Now, you can take 3 common:

3(m+n) = 3

m + n = 1

Your final answer for what m + n equals 1!

3 0
3 years ago
K-17=-12 I need help solveing this
Fed [463]
Remember, you can do ANYTHING to an equaiton as long as you do it to BOTH SIDES

we can try to get k by itself bymaking that -17 into 0 since k+0=k

-17+17=0 right so

K-17=-12
add 17 to BOTH SIDES
K+17-17=17-12
K+0=5
K=5
5 0
2 years ago
Read 2 more answers
G(x) = -2x + 2<br>h(x) = 3x+4<br>Find (gºh)(1)​
bixtya [17]

Answer:

- 12

Step-by-step explanation:

To evaluate (g ○ h)(1), evaluate h(1) then substitute this result into g(x)

h(1) = 3(1) + 4 = 3 + 4 = 7, then

g(7) = - 2(7) + 2 = - 14 + 2 = - 12

4 0
3 years ago
A chemist has 500 mL of a 30% acid solution. She adds x milliliters of a 10% acid solution. Which statement is true about the gr
AlladinOne [14]

Pretty sure the answer is B The horizontal asymptote y = 10 means that the final concentration will always be greater than 10%.

Step-by-step explanation:

Since the 10 % solution that you're adding to the 30% solution is 10% acid when you add it to the 30 acid percent solution it would never decrease the acidity levels farther than 10 percent no matter how much you put because the solution your adding is at a 10% acidity and the other solution is 30% acidity and has a higher acidity level than the 10% so it could never go lower than the solution you are adding to it.

Really hope I did an okay job at explaining.

7 0
3 years ago
Problem Page
Leno4ka [110]

Answer:

the desired equation is y = -5x + 2

Step-by-step explanation:

The general slope-intercept form is y = mx + b.  Here we know that m = -5 and b = 2, so the desired equation is y = -5x + 2.

3 0
3 years ago
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