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Salsk061 [2.6K]
3 years ago
13

Find x and the size of each angle in this triangle. 6x + 20 4x 7x - 10

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
7 0
Add 6x+20+4x+7x-10=180

Combine like terms 6x+4x+7x= 17x 20-10=10

17x+10= 180 180-10= 170 170/17x= 10

So x = 10
kozerog [31]3 years ago
3 0

Answer:

x= 10

6x+20= 80°

4x= 40°

7x= 60°

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Indicated operation
lutik1710 [3]
20✔️3 + 4✔️27
20✔️3 + 4✔️9 • 3
20✔️3 + 4 • 3 ✔️3
20✔️3 + 12✔️3
32✔️3.

The solution is 32✔️3.
4 0
3 years ago
What is the slope of a line that is perpendicular to y=1/2x+9 that passes through (-7,-4)
Artist 52 [7]
Hi there!

To find the perpendicular slope you need to flip the fraction and change the sign. So 1/2=2/1 and tge original slope was positive, so the slope is -2. Now you sub in the point (-7,-4) in for x and y in the formula y=mx+b and solve for b (sub in 2 for m as well)
Y=mx+b
-4=-2*-7+b
-4=14+b
-4-14=b
B=-18
The equation is y=-2x-18

Hope this helps!
6 0
3 years ago
Write the standard form of the line that contains a slope of 1/2 and y intercept of 3
timofeeve [1]
Y=1/2x+3 is the answer
3 0
4 years ago
Read 2 more answers
4 2/3÷(-1 1/4)<br><br> A. 7 20/21<br> B. 1/36<br> C. 2.57
Varvara68 [4.7K]
I think it’s C but i’m not sure
6 0
3 years ago
If c= the number of cars in a parking lot, which algebraic expression
sveticcg [70]

Answer:

D. C+9

Step-by-step explanation:

C represents the number of cars in the parking lot.

The number of cars increased by 9.

That means 9 plus the number of cars already available at the parking lot

That’s c + 9

4 0
4 years ago
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