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Ksenya-84 [330]
3 years ago
8

This is math questions that we made up!

Mathematics
1 answer:
Lyrx [107]3 years ago
5 0
How did you do that
You might be interested in
Can somebody help me, please?
Sveta_85 [38]

Answer:

a.x=10 \textdegree

b.

m\angle L=39\textdegree\\\\m\angle M=51\textdegree\\\\m\angle K=90\textdegree

Step-by-step explanation:

a. We know that angles in a triangle add up to 180°.

-The right angle triangle in the right triangle has a measure of 90°.

We can therefore equate our angles to 180° and solve for x;

180=\perp\angle+(2x+19)+(3x+21)\\\\180=90+(2x+19)+(3x+21)\\\\90=5x+40\\\\5x=50\\\\x=10\textdegree

Hence, the angle measure is x=10°

b. Having calculated the value of x from a above as x=10°, we can substitute to find the measures of the two acute angles:

m\angle L=(2x+19)\textdegree\\\\=(2\times 10+19)\textdegree\\\\=39\textdegree\\\\m\angle M=(3x+21)\textdegree\\\\=(3\times 10+21)\textdegree\\\\=51\textdegree

Since, the m∠K is a right angle, it measures 90°

8 0
3 years ago
Consider this equation:  2/3 x − 9 − 2x + 2 = 1
Mekhanik [1.2K]
-4/3x (or -1 1/3x if you use whole numbers instead of an improper fraction) -7 = 1
6 0
3 years ago
Read 2 more answers
128 is 74% of what number
GarryVolchara [31]
Percent means parts out of 100
74%=74/100=0.74


'of' means multiply


so
128 is 74% of what means
128=0.74 times what
divide both sides by 0.74
172.97297297297297297297297297297=what
the number is about 173

5 0
2 years ago
Write an equation in​ the slope-intercept form of the line.
nata0808 [166]
Answer: Y= 1/-2x + 2
4 0
2 years ago
If m∠1 = 52°, what is m∠7?
Simora [160]

Answer:

it would be 52 degrees as well because it is a corresponding angle

5 0
2 years ago
Read 2 more answers
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