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tatiyna
3 years ago
7

What expression represents the measure of angle x?

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
5 0
An isosceles triangle is a triangle that has 2 equal sides and 2 equal angles. 

side XY = side XZ
∠Y = ∠Z
Since ∠Y = a°  then ∠Z = a°

Because interior angles of a triangle sum up to 180°, we simply need to find the difference between 180° and the 2 known angles to solve for the measure of angle X.

∠X = 180° - 2a°
  
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Answer:

Step-by-step explanation:

A: 40

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8 0
3 years ago
A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s heigh
Nataly_w [17]

Answer D). 9 ft is correct

Height of the ball at a horizontal distance of 10 feet is 9 ft

Step-by-step explanation:

A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s height (y).

Y(x) = -0.02x^{2} +0.8x+3

Question asked is " What will be height (Y) of the ball when X=10 ft "

Simply putting value of X in given equation

we get,

Y(x) = -0.02x^{2} +0.8x+3

Y(x) = -0.02(10)^{2} +0.8(10)+3

Y(x) = -0.02(100)} +8+3

Y(x) = -2 +8+3

Y(x) = 9

<em>Therefore,</em> Height of the ball at a horizontal distance of 10 feet is 9 ft

Answer D.  9 ft is correct

6 0
3 years ago
kelly has a ribbon that is 60 inches long. she cuts 40% off the ribbon for an art project. while working on the project, she dec
Sladkaya [172]
18 inches.
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8 0
2 years ago
Kyle is making 9 birdhouses. He uses 8 nails for each birdhouse. If Kyle has a box of 100 nails, how many nails will he have lef
iragen [17]
9 x 8 = 72 
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Hope this helps
7 0
3 years ago
Evaluate the expression for x=2 and y=4.<br> (x5y?)/(x3y5)
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Answer:

(2 x 5 x 5) / (2 x 3 x 4 x 5)

=40/120

= 4/12

= 1/3

5 0
3 years ago
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