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3 years ago

14

The intersection of parallel lines b and c and transversal line d form several special angle relationships, as shown in the imag

e below.
Which pairs of angles are vertical angles? Select all that apply.

2 and 3
5 and 8
7 and 2
4 and 5

2 answers:

andrew-mc [135]3 years ago

6 0

Answer:

5 and 8

Step-by-step explanation:

Juli2301 [7.4K]3 years ago

3 0

2 and 3
5 and 8
Those are the pairs of vertices angles

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Artist heard that as a general rule

zhenek [66]

What does this mean idk but thanks for the free answer

6 0

3 years ago

Please help! I'm confused...

maw [93]

So since angle A is 120, so angles B+C=60 because there are 180 degrees in a triangle. So B:C is 2:1. So angle B is 40 and angle C is 20.

4 0

3 years ago

Please help i will give Brainliest <br> 7.4 = -t/8.5<br> t = ?

posledela

Answer:

-62.9

Step-by-step explanation:

7.4= $\frac{-t}{8.5}$

8.5 (7.4)=-t

62.9=-t

t=-62.9

3 0

3 years ago

Find the extremum of f(x,y) subject to the given constraint, and state whether it is a maximum or a minimum. f(x,y)=xy; 6x y=10

Pepsi [2]

There is a <u>maximum</u> value of <u>7/6</u> located at (x, y) = <u>(5/6, 7)</u>.

The function given to us is f(x, y) = xy.

The constraint given to us is 6x + y = 10.

Rearranging the constraint, we get:

6x + y = 10,

or, y = 10 - 6x.

Substituting this in the function, we get:

f(x, y) = xy,

or, f(x) = x(10 - 6x) = 10x - 6x².

To find the extremum, we differentiate this, with respect to x, and equate that to 0.

f'(x) = 10 - 12x ... (i)

Equating to 0, we get:

10 - 12x = 0,

or, 12x = 10,

or, x = 5/6.

Differentiating (i), with respect to x again, we get:

f''(x) = -12, which is less than 0, showing f(x) is maximum at x = 5/6.

The value of y, when x = 5/6 is,

y = 12 - 6x,

or, y = 12 - 6*(5/6) = 7.

The value of f(x, y) when (x, y) = (5/6, 7) is,

f(x, y) = xy,

or, f(x, y) = (5/6)*7 = 7/6.

Thus, there is a <u>maximum</u> value of <u>7/6</u> located at (x, y) = <u>(5/6, 7)</u>.

Learn more about maximum and minimum at

brainly.com/question/2437551

#SPJ4

7 0

2 years ago

List the sides in order from shortest to longest in ∆ABC, with m angle A = 80, m angleB = 3x + 5, and m angle C = 5x - 1.

galina1969 [7]

M<A + m<B + m<C = 180
80 + 3x + 5 + <span>5x - 1 = 180
8x + 84 = 180
8x =96
x = 12

m<</span><span>B = 3x + 5 = 3(12) + 5 = 41
m<C = </span><span>5x - 1 = 5(12) - 1 =59
and
m<A = 80

</span><span>answer:

order from shortest to longest in ∆ABC</span><span>
AC, AB, BC

P.S.
Smallest angle, shortest side.....
Largest angle, longer side....

</span>

7 0

4 years ago