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Ierofanga [76]
3 years ago
6

Please help me solve this please

Mathematics
1 answer:
Tems11 [23]3 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to the exterior angle that's supplementary to the third interior angle:

7x + 6 + 22 = 9x + 12 add like terms

7x + 28 = 9x + 12 export like terms to the same side of the equation

28 - 12 = 9x - 7x

16 = 2x divide both sides by 2

8 = x

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Factor completely. 20+72m Enter your answer in the boxes.
ololo11 [35]
I think it would just me 20 +72m, since it is already simplified
8 0
3 years ago
NO LINKS!! Please help me with this problem​
12345 [234]

Answer:

\frac{x^2}{784}+\frac{y^2}{400}=1

Step-by-step explanation:

<u><em>Horizontal Major Axis:</em></u>

   \frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}

<u><em>Vertical Major Axis:</em></u>

   \frac{(y-k)^2}{a^2}+\frac{(x-h)^2}{b^2}+

So these two expressions are essentially the same with the only difference being the location of "a" and "b". The length of the major axis will be "2a" and the length of the minor axis will be "2b". The way I remember this is because when you have the horizontal major axis the "a" value is in the denominator of the (x-h) and I think of "x" as a horizontal value, since it moves a point horizontally. When you have a vertical major axis the "a" value is in the denominator of (y-k) and I think of "x" as a vertical value, since it moves a point vertically.

So just by looking at the graph, you can easily determine that the eclipse has a horizontal major axis. This can be further proven, since the distance from the origin on the right side is 28, and the distance from the the top to the origin is only 20.

So you could set up an equation to solve for a, since 2a = length of major axis, but since we're given the two points, the "a" value is really just the length from the origin to the right/left side, and combining these together you get the value of 2a/major axis, but you don't have to do that. So by looking at the graph you'll see the distance from the origin to the right side is 28. This means "a=28"

You can do the same thing here for the "b" value, and since the top is 20 units away from the origin, "b = 20"

So now let's set up the equation:
\frac{x^2}{28^2} + \frac{y^2}{20^2}=1

Square the values in the denominator

\frac{x^2}{784}+\frac{y^2}{400}=1

5 0
2 years ago
John determined that the unit rate for his trip to Orlando was 70 miles every 2 hours. Why is John's determination incorrect? Ca
ahrayia [7]

Answer:

John's determination incorrect because he didn't give a unit rate which is miles per hour (mph).

The actual unit rate for his trip is v;

v = 70 miles ÷ 2 hours

v = 35 miles per hour

v = 35mph

Step-by-step explanation:

Given;

John travels 70 miles in 2 hours

John's determination incorrect because he didn't give a unit rate which is miles per hour (mph).

The actual unit rate for his trip is;

v = 70 miles ÷ 2 hours

v = 35 miles per hour

v = 35mph

5 0
3 years ago
Mark each of the following statements as true or false (inappropriate notation should fall under "false").
Marianna [84]

Answer:

a.False

b.True

c.False

d.True

e.True

f.True

g.False

h.False

Step-by-step explanation:

a.The quotient of 25/11 =2, 25-2*11=3 not 14

b.25/11 and 14/11 have the same remainder which is 3

c.The quotient of 3/11 =0, 3-0*11=3 not 14

d.14/11 and 3/11 have the same remainder which is 3

e.The quotient of 14/11 is 1, 14-1*11=3

f.14/11 and 3/11 have the same remainder which is 3

g.Incorrect expression

I. Incorrect expression

4 0
4 years ago
ASAP ASAP ASAPPPPPP HOMEWORKKKKKK
Fed [463]

Answer:

22

Step-by-step explanation:

8 0
3 years ago
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