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ELEN [110]
3 years ago
7

Solve for x: 2x squared-1=-9

Mathematics
1 answer:
Troyanec [42]3 years ago
3 0

Answer:

x=-2

Step-by-step explanation:

-9+1=-8 so 2x squared =-8

x=-2

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List 3 reasons you listen to music and tell how each influences your mood.
ANTONII [103]

Answer: It provides a total brain workout.” Research has shown that listening to music can reduce anxiety, blood pressure, and pain as well as improve sleep quality, mood, mental alertness, and memory.

6 0
3 years ago
pablo will rent a car for the weekend. he can choose one of two plans. the first plan has an initial fee of $55.96 with addition
sergeinik [125]

Answer:

200 miles

Step-by-step explanation:

63.96+(.08x)=55.96+(.12x). x=200. 63.96+(.08x200)=79.96. 55.96+(.12x200)= 79.96

7 0
3 years ago
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write the slope intercept form of the equation of each line given the slope and y intercept. // slope= 1/3 y-intercept= 4 // slo
professor190 [17]

Answer:

Slope: 1/3; Y-iintercept: 4     y=1/3x+4

Slope: -2;  Y-intercept: 4      y=-2x

Step-by-step explanation:

Hope this helps :3

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6 0
3 years ago
Determine the coordinates of the point on the unit circle corresponding to the given central angle. If necessary round your resu
Olenka [21]

Answer:

Option A. (-1, 0)

Step-by-step explanation:

In the figure attached,

Circle O is a unit circle (having radius r = 1 unit)

If a point A with central angles = θ, is lying on the circle then the coordinates of the point A will be,

x = r.cosθ

x = 1.cosθ = cosθ

and y = r.sinθ

y = 1.sinθ = sinθ

Therefore, coordinates representing the point A will be (cosθ, sinθ).

As per question the given point A is lying at P (a point having central angle θ = 180°)

Coordinates of point P will be

(x', y') → (cos180°, sin180°)

        → (-1, 0)

Therefore, Option A will be the answer.

3 0
3 years ago
How many flyers can we buy?
Rudiy27

Answer: 1760

Step-by-step explanation:

Cost of 1 flyer = $0.25 or 25 cents

Budget is = $555

Let us assume that supplies cost is a one time cost

Cost of supplies for one time = $115

So budget remains =

So in $0.25 we get = 1 flyer

In $440 we get =  = 1760

Hence, we can buy 1760 flyers.

hope this helped

8 0
3 years ago
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