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3 years ago

Solve -5x2 - 20x + 35 = 30 by completing the square.

Mathematics

1 answer:

Semenov [28]3 years ago

5 0

Answer:

x=−2−√5 or x=−2+√5

Step-by-step explanation:

-5x2 - 20x + 35 = 30

Answer = x=−2−√5 or x=−2+√5

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To input your angle measures in degrees, use the functions sind, cosd and tand, instead of sin, cos and tan. Zach stands at the

kramer

Answer:

about 2949 feet

Step-by-step explanation:

The geometry of the situation can be modeled by a right triangle. The height of the cliff can be taken to be the side opposite the given angle, and the distance to the coyote will be the side adjacent to the given angle. The relation between these values is the trig function ...

Tan = Opposite/Adjacent

<h3>setup</h3>

Filling in the known values, we have ...

tan(6°) = (310 ft)/(distance to coyote)

<h3>solution</h3>

Multiplying by (distance to coyote)/tan(6°) gives ...

distance to coyote = (310 ft)/tan(6°) ≈ 310/0.105104 ft

distance to coyote ≈ 2949.453 ft

The coyote is about 2949 feet from the base of the cliff.

6 0

2 years ago

Can u get the steps to solving <br> -2(4)^2+4

svp [43]

(4)^2 must be done first.

That’ll give you 16. (4x4)

16 x -2= -32

-32+4= -28

8 0

3 years ago

Find the ordered triple of these equations. x + 2y + 2z = 02x + y + z = 3x - 3y - z = 1

klasskru [66]

{x+2y+2z=0
{2x+y+z=3
{x-3y-z=1

{x+2y+2z=0
-
{4x+2y+2z=6
{-3x=-6 → x=2

{-3y-z=-1
+
{y+z=-1
{-2y=-2 → y=1

{2+2+2z=0 → 2z=-4 → z=-2
Final triple is
(2; 1; -2)

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3 years ago

What is two the two <br><br><br><br> this is Free poin ]t because I'm nice

satela [25.4K]

Two the two is the four.

4 0

2 years ago

4/7 of what number is 28

kozerog [31]

Answer:

Step-by-step explanation:

7 0

3 years ago

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