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azamat
3 years ago
5

The quadratic equation 4x^2 + 12x + k = 0 has equal roots. Find the value of k.

Mathematics
1 answer:
cestrela7 [59]3 years ago
3 0

Answer:Sephardic.org

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Each year for 8 years, the Williams family visited 6 different states on vacation. How many more states do they need to visit be
shusha [124]

Answer: 2 states

Step-by-step explanation:

Every year for 8 years, the Williams family visited 6 different states on vacation. This means for 8 years, the family have visited:

= 8 × 6

= 48 states

Since there are 50 states in total, that means we will subtract 48 from 50. This equals :

50 - 48 = 2 states.

They've 2 states left to visit

8 0
3 years ago
Read 2 more answers
write an absolute value equation to calculate the distance between the two points (4, -2) and (-9, -2)
meriva

9514 1404 393

Answer:

  d = |-9-4| = 13

Step-by-step explanation:

The y-values are the same for the two points, so the distance between them on that horizontal line is the difference of x-values.

  d = |(-9) -(4)|

  d = |-13| = 13

The distance between the points is 13 units.

7 0
3 years ago
Two cubes have sides of length 3 cm and 8 cm. what is the ratio of their respective surface areas?
Phoenix [80]

The surface area formula for a cube is: 6 * s^2, where s is the side length.

The two surface areas are:

6 * 3^2 = 54

and

6 * 8^2 = 384

The ratio of their surface areas, from the surface area of the smaller cube to the surface area of the larger cube is:

54/384 = 9/64

The answer is 9/64.

Note that another way to to find the ratio of the squares of the side lengths of the cubes.

7 0
3 years ago
Read 2 more answers
I need help please explain your work for number 7 only
Keith_Richards [23]

Answer:

Transitive property

Step-by-step explanation:

When a=c and b=c, a=b

A would be 16+43

B would be 59

C would be 10+49

5 0
2 years ago
The product of the polynomials (3x + 2) and (-x-3) is?
pychu [463]

Answer:

3x²-11x-6

Step-by-step explanation:

(3x+2)(-x-3)

Then you Foil, AKA multiply the First Outside Inside and Last and then add them together

3x²-9x-2x-6

3 0
3 years ago
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