All categories

2 years ago

-7r2 + 7r + 2 = 2 Find Discriminant

Mathematics

2 answers:

GarryVolchara [31]2 years ago

7 0

I think r=0 I think that’s the answer

victus00 [196]2 years ago

5 0

Answer:

r = 1 , 0

Step-by-step explanation:

-7 $r^{2}$ + 7r + 2 = 2

-7r(r-1)=2-2

-7r(r-1)=0

r-1=0

r=1

You might be interested in

Find the slope and y intercept of the line that is parallel to y= -1/3x+5 and passes through the point (8,5)

jeka94

Step by step equation

3 0

2 years ago

Triangle XYZ has vertexes at X(-4, 5), Y(-3, 5), and Z(-3, 4). Find the measure of angle Y to the nearest degree.

hodyreva [135]

Mark these points on the graph to form a right angled triangle.
Angle Y will be 90 degrees

8 0

2 years ago

Add<br> 9a+8b-a+b and 10a-9b+6a-1b

Alina [70]

Answer:

8a + 9b and 16a - 10b

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

The ratio of the lengths of <br> and <br> is 2 : 1.

aksik [14]

Answer:

is it 2

Step-by-step explanation:

hope this helps

5 0

2 years ago

Find the volume of the triangular prism.

goldfiish [28.3K]

Answer:

V = 31.5 in ^3

Step-by-step explanation:

The volume is Bh

The base is the triangle

B = 1/2 (7) *2

B = 7 in^2

Now find the volume

V = 7* 4.5

V = 31.5 in ^3

5 0

3 years ago