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3 years ago

Solve for x and y. Then find the measure of each angle.

Mathematics

1 answer:

aliina [53]3 years ago

5 0

Answer:

x= 42

y= 23

Step-by-step explanation:

Set up a system of equations like this:

(4y-9)=(3x-43)

(2x+13)=(4y+5)

when two lines cross like this they form vertical angles, and vertical angles are always equal.

calculate the system of equations and you'll get x=42 and y=23

To find the measure of any of the angles just put x or y into the equation.

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There are 180 students participating in after school activities. Of those students 40% are boys . How many girls are participati

Nezavi [6.7K]

i dont want to assume all the other people participating in after school activities are girls but if they are, the answer is 108.

180 = 100%

x = 40%

the information above shows that 60% are girls

60% of 180 = 108 or 0.60 x 180 = 108

the answer is 108

hope this is helpful!

7 0

3 years ago

A polynomial has a leading coefficient of -4 and is a sixth-degree monomial. Name the expression that represents this polynomial

Bogdan [553]

Answer:

its 988080808808080808080808000000000000000000000000000000000

Step-by-step explanation:

988080808808080808080808000000000000000000000000000000000

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3 years ago

A graph of a linear function is shown on the grid. Which of these best represents 0 of the function? A 8. B 10. C 16. D 24.

harina [27]

answer:

C. 16

explanation:

when x is 0, the y-intercept is 8

coordinates: (0,8) and (4,6)

slope:

$\sf \frac{y2-y1}{x2-x1}$

$\sf \frac{6-8}{4-0}$

$\sf \frac{-2}{4}$

$\sf -\frac{1}{2}$

equation:

$\sf y = mx +b$ [ where m is slope and b is y-intercept ]

$y = \sf -\frac{1}{2}x +8$

solve for x-intercept:

note: zeros of a function are the values of x when f(x) is equal to 0

$y = \sf -\frac{1}{2}x +8$

$0= \sf -\frac{1}{2}x +8$

$-8= \sf -\frac{1}{2}x$

$\sf x = -8 * -2$

$\sf x = 16$

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2 years ago

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(4p2 - 5p - 4) + (5p2 - 4-2p)

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Answer:

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3 years ago

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Black_prince [1.1K]

If two angles are supplementary, their sum equals 180 degrees

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3 years ago