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Harlamova29_29 [7]
3 years ago
14

Given that Y = 2x^2-96, find x

Mathematics
1 answer:
kari74 [83]3 years ago
5 0
This isn't an equation, so you cannot "solve for x."  However, you can factor, as follows:

y = 2(x^2-49) = 2(x-7)(x+7)

If you decide to set this = to zero, then you can solve for x:  {-7, 7}.
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Triangle ABC has vertices at A(-5, 4), B(4, 1), and C(1, -8). Choose the terms below which correctly describe this triangle:
Anton [14]

Answer:

An ISOSCELES TRIANGLE

Step-by-step explanation:

Given a triangle ABC with vertices at A(-5, 4), B(4, 1), and C(1, -8), to know the type of triangle this is, we need to find the three sides of the triangles by taking the distance between the points.

Distance between two points is expressed as:

D = √(x2-x1)²+(y2-y1)²

For side |AB|:

A(-5, 4) and B(4, 1)

|AB| = √(4-(-5))²+(1-4)²

|AB| = √9²+3²

|AB| = √90

For side |BC|

B(4, 1), and C(1, -8)

|BC| =√(1-4)²+(-8-1)²

|BC| = √3²+9²

|BC| = √90

For side |AC|:

A(-5, 4) and C(1, -8).

|AC| = √(1-(-5))²+(-8-4)²

|AC| = √6²+12²

|AC| = √36+144

|AC| = √180

Based on the distances, it is seen that side AB and BC are equal which shows that two sides of the triangle are equal. A triangle that has two of its sides to be equal is known as an ISOSCELES TRIANGLE. Therefore the term that correctly describes the triangle is an isosceles triangle.

3 0
3 years ago
I will mark you has brainliest if you answer this question ​
Basile [38]

Answer:

Y=X+74

Step-by-step explanation:

75=m+b......*

76=2m+b.........**,b=76-2m

then substitute b=76-2m

on the first equation

75=m+76-2m

m=1

b=74

Y=X+74 is the answer

8 0
3 years ago
The graph below models the value of a $20,000 car t years after it was purchased.
ICE Princess25 [194]

Answer:

Each time, t, is associated with exactly one car value, y.

5 0
3 years ago
Read 2 more answers
what's the answer! Consider having a personal loan that spans 5 years. The loan was only taken out for $6000, but the interest r
DIA [1.3K]
^^^this answer is correct I checked
7 0
2 years ago
You put $1500 into an account earning 7% annual interest compounded continuously. How long will it be until you have $2000 in yo
Igoryamba
14 days hope this helps 
7 0
3 years ago
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