A triangle can only have one right angle. If it had more than one, it would no longer be considered a triangle... It wouldn't have the correct amount of sides and it would be strangely shaped.
The answer would be number 1.
Have a great day/night!
The value of x and z are 15 and 4.5 respectively
<h3>Parallelogram and triangles</h3>
The triangles in the parallelogram are isosceles. This shows that the base angles are equal
From the given parallelogram, the following are true
3x = 45
x = 45/3
x = 15
Similarly;
10z = 45
z = 45/10
z = 4.5
Hence the value of x and z are 15 and 4.5 respectively
Learn more on parallelogram here: brainly.com/question/3050890
<h2>
Answer with explanation:</h2>
Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :
X= 155.1, 154.8, 155.5, 155.3, and 154.6.
here, n=5
The average weight :
∴ Average weight (
)=155.06 grams
Uncertainty = Standard deviation: 
i.e. Its uncertainty : 
The fractional uncertainty = 
19. 10 divided by 3 = 5 pounds
20. 5.5 divided by .5 = 11
21. no because 1.25 x 2.5 = 3.12 and she only has $3
22. the restaurant because the restaurant wants to buy 30lb and its $1.25 so 30 x 1.25 = 37.5 and the hotel buys 12 lb for $3 so that is 12 x 3= 36
We have that
y=x²----> equation 1<span>
y=x+2-----> equation 2
multiply equation 1 by -1
-y=-x</span>²
add equation 1 and equation 2
-y=-x²
y=x+2
------------
0=-x²+x+2-------------> -x²+x+2=0-----> x²-x-2=0
Group terms that contain the same variable, and move the
constant to the opposite side of the equation
(x²-x)=2
<span>Complete
the square. Remember to balance the equation by adding the same constants
to each side
</span>(x²-x+0.5²)=2+0.5²
Rewrite as perfect squares
(x-0.5)²=2+0.5²
(x-0.5)²=2.25-----> (x-0.5)=(+/-)√2.25-----> (x-0.5)=(+/-)1.5
x1=1.5+0.5-----> x1=2
x2=-1.5+0.5---- > x2=-1
for x=2
y=x²----> y=2²----> y=4
the point is (2,4)
for x=-1
y=x²----> y=(-1)²---> y=1
the point is (-1,1)
the answer isthe solution of the system are the points(2,4) and (-1,1)
