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Wittaler [7]
3 years ago
11

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = -3 - 2 cos θ

Mathematics
2 answers:
gayaneshka [121]3 years ago
7 0
Im just guessing, is it no symmetry?
Nataliya [291]3 years ago
6 0

The answer you are looking for is x-axis only :)

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Help please!!!!!! 12-13 8th grade math!!!
marin [14]

Answer:

12.

m∠ACB = 180° - 58° - 78° = 44°

m∠DCE = 180° - 85° - 60° = 35°

m∠BCD = 180° - 44° - 35° = 101°

13.

Base on the picture, we know that:

x° + 2x° + 3x° = 180°

6x°                 = 180°

x°                   =  180° ÷ 6 = 30°

=> m∠K = 2x° = 2 × 30° = 60°

=> m∠L = 3x° = 3 × 30° = 90°

=> m∠KML = x° = 30°

m∠LMN =  60° + 90° = 150°

5 0
4 years ago
HELP PLZZZZ !!!!!!!!!!!!
jeyben [28]
The answer to your question is B
4 0
3 years ago
The legs of a right triangle are four units and 7 units what is the length of the hypotenuse
alexdok [17]
This is where Pythagorean's Theorem comes into play. a^2+b^2=c^2
So take 4^2 + 7^2 (which is 16+49), and your result is 65. Take the square root of 65 and you get 8.06 (8.1 rounded up)
7 0
3 years ago
Read 2 more answers
Simplify the equation 5(10 – y) – 4
Mrrafil [7]

Answer:

46−5y

Step-by-step explanation:

5(10−y)−4

Use the distributive property to multiply 5 by 10−y.

50−5y−4

Subtract 4 from 50 to get 46.

46−5y

Graph if needed:

5 0
3 years ago
Read 2 more answers
1. Erin hits a golf ball off a tee. The height, yin yards, of the ball off the ground is given by
Sladkaya [172]

Answer:

The maximum height of the ball is 28.2 yards.

Step-by-step explanation:

When we have a quadratic equation in the following format:

y = ax^{2} + bx + c

The maximum value happens when

x = x_{v} = \frac{-b}{2a}

The maximum value will be y(x_{v})

In this problem, we have that:

y = -0.0018x^{2} + 0.45x + 0.05

So

a = -0.0018, b = 0.45, c = 0.05

x = x_{v} = \frac{-b}{2a} = \frac{-0.45}{2*(-0.0018)} = 125

The maximum height is:

y(125) = -0.0018*(125)^{2} + 0.45*125 + 0.05 = 28.2

The maximum height of the ball is 28.2 yards.

4 0
3 years ago
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