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Bad White [126]
3 years ago
15

Graph the Quadratic Function given. y = -x^2 - 4x - 3

Mathematics
1 answer:
Dovator [93]3 years ago
6 0

Answer:

Concave down

Y-intercept: (0,-3)

X-intercepts: (-1,0) (-3,0)

Vertex: (-2,1)

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A plane which passes through three edges of a cube produces a triangular cross section as shown.
77julia77 [94]

Answer:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Step-by-step explanation:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Please see the image attached for better visualization.

7 0
3 years ago
What is the word expression of this problem
Ket [755]

Answer:


Step-by-step explanation:

What do you mean by word expression?  Need more info

20, added with 5 times of 9 __ ?

7 0
3 years ago
Find the probability of rolling a 2,3, or 4 on the number cube
kolezko [41]
Well, if you wanted the answer, it is provided in the picture that you yourself have uploaded. However, if need more clarification on how to find that answer. Here I go. 

So, you can ask yourself, how many numbers are on the cube? 6, from 1-6. So there are 6 possible outcomes. Now between the numbers 1, 2, 3, 4, 5, 6, how many are the numbers 2, 3, or 4? There are 3, so it is 3/6, 1/2, 50%, or 0.5.
3 0
3 years ago
The wind is blowing N 35.0 degrees W at 1.60 * 10^2 mph. A plane has an engine speed of 3.20 * 10^2 mph. Where should the pilot
andreyandreev [35.5K]

Answer: 24.2° SouthWest

<u>Step-by-step explanation:</u>

First step: DRAW A PICTURE of the vectors from head to tail <em>(see image)</em>

I created a perpendicular from the resultant vector to the vertex of the given vectors so I could use Pythagorean Theorem to find the length of the perpendicular. Then I used that value to find the angle of the plane.

<u>Perpendicular (x):</u>

 cos 35° = adjacent/hypotenuse

  cos 35° = x/160

→ x = 160 cos 35°

<u>Angle (θ):</u>

sin θ = opposite/hypotenuse

sin θ = x/320

sin θ = 160 cos 35°/320

    θ = arcsin (160 cos 35°/320)

    θ = 24.2°

Direction is down (south) and left (west)

7 0
3 years ago
The radius of a circle is 12 cm. Find its area in terms of pie. ​
SCORPION-xisa [38]

Answer:A≈452.39cm

Step-by-step explanation:

5 0
3 years ago
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