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poizon [28]
3 years ago
6

Please help me!!! I will try to mark brainliest if the answer is correct!

Mathematics
1 answer:
netineya [11]3 years ago
5 0

Answer:

I think the first is answer bcz 35+55=90 ..... 180-90=90

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Using the Triangle Sum Theorem, find x and the missing angles (2x +1) (5x +5) x= Angle (2x+1) = Angle (5x+5) =​
Arte-miy333 [17]

Answer:

x = 12

(2x + 1)° = 25°

(5x + 5)° = 65°

Step-by-step explanation:

By the property of a triangle,

Sum of all angles of a triangle is 180°

In the given right triangle,

(2x + 1)° + 90° + (5x + 5)°= 180°

7x + 96 = 180

7x = 180 - 96

x = \frac{84}{7}

x = 12

Angle (2x + 1)° = 2(12) + 1 = 25°

Angle (5x + 5)° = 5(12) + 5 = 65°

Therefore, all three angles of the right triangle are 25°, 90° and 65°.

4 0
3 years ago
5x +y=8
makvit [3.9K]
Take away the bottom equation from the top so the y’s cancel out
3x = -24
x therefore = -8
and put x back into the equation to find out y
2(-8) + y= 32
-16 + y =32
y= 48
6 0
2 years ago
Is -2(-3) a positive or negative answer???
Natalija [7]

Answer: positive

Step-by-step explanation: it’s positive because if you multiply two negative numbers they cancel each other out and it makes a positive number

5 0
3 years ago
Read 2 more answers
The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many students are girls?
AnnyKZ [126]

Step-by-step explanation:

3+5=8

40÷8=5

5x5=25 girls

5x3=15

5 0
3 years ago
Read 2 more answers
Evaluate the radical.<br><br> 1000−−−−√3
scoray [572]
( 1000 )^1/3 
= ( 10 ^3 )^ 1/3

= ( 10 ) ^ 3 × 1/3

= 10

I hope this will useful to you.
6 0
3 years ago
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