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Virty [35]
4 years ago
13

If a=-1,b=-6 and c=2 then what is the value of b2-4ac?​

Mathematics
1 answer:
grandymaker [24]4 years ago
4 0

Answer:

-4

Step-by-step explanation:

(-6)(2)-4(-1)(2)

(-12)-(-8)

-12+8=-4

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You can just give an answer.
lina2011 [118]

Answer:

Step-by-step explanation: 50 x. 10

3 0
3 years ago
The first hexagon is dilated to form the second hexagon. Select answers from the drop-down menus to correctly complete the state
shusha [124]

Answer: The scale factor is 1.3  .

Step-by-step explanation:

Given: The first hexagon is dilated to form the second hexagon.

The side length of first hexagon=5 units.

The side-length of second hexagon= 6.25 units

When a shape having measure x is dilated by using a scalar factor of k, then the side measure (y) of the image is given by:-

y=kx

Substitute, y=6.5 and x=5  to find the value of k we get

6.5=5k\\\Rightarrow\ k=\frac{6.5}{5}=1.3

Hence, the scale factor is 1.3

3 0
3 years ago
What is the value of tan (B) in the diagram?
hodyreva [135]

Answer:

The correct answer is third option

1/√3

Step-by-step explanation:

From the figure we can see a right angled triangle ABC.

Right angled at C.

AB = 10

AC = 5

BC = 5√3

<u>Points to remember</u>

Tan θ = Opposite side/Adjacent side

<u>To find the value of tan(B)</u>

Tan B =  Opposite side/Adjacent side

 = AC/BC

 = 5/5√3

 = 1/√3

Therefore the value of tan(B) =  1/√3

7 0
4 years ago
Read 2 more answers
Which ordered pair is a solution to the system of linear equations -4x+y= 8 and X-5y=17?
iren [92.7K]
C is the correct answer.
Plug the x & y values for x and y in the equation and you'll get true statements. For example:
-4(-3) -4 = 8
12-4=8

And in the second equation:
-3 -5(-4) = 17
-3 +20 = 17
5 0
3 years ago
What is the measure of angle efg? a. 70 degrees b. 90 degrees c. 100 degrees d. 130 degrees
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We need the format to answer the question. what does it look like?

4 0
3 years ago
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