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Sunny_sXe [5.5K]
2 years ago
10

Solve using the quadratic formula. (Identify a, b, and c. Write the

Mathematics
1 answer:
vivado [14]2 years ago
5 0

Answer:

Step-by-step explanation:

Here a = 8, b = 4 and c = -2.  The discriminant here is b^2 - 4ac, which, when the above coefficients are substituted, results in:

discriminant = (4)^2 - 4(8)(-2), or 16 + 64, or 80.

The solutions are:

      -(4) ± √80         -4 ± 4√5        4(-1 ±√5)        -1 ± √5

n = ------------------ = ----------------- = --------------- = --------------

            2(8)                    16                 4^2                  4

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Really need help on this so please help as soon as you can thanks
Juli2301 [7.4K]

Answer:

Option A

Step-by-step explanation:

From the last triangle given in the picture,

x° = 45° + 85° [By the definition of exterior angle of a triangle]

x = 130°

Another way to get the value of x,

By triangle sum theorem,

45° + 85° + y° = 180°

y° = 180° - 130°

y = 50°

And (x° + y°) = 180° [linear pair of angles]

x + 50 = 180

x = 130°

Therefore, x = 130° because 180 - (45 + 85) = 50 and 180 - 50 = 130

Option A is the answer.

7 0
3 years ago
Zach bought two new jet skis for 15,490. He will make 36 equal payments . How much will each payment be?
IgorC [24]
15490 divide by 36


Zach would pay ~430.2778 dollars each time

hope this helps
5 0
3 years ago
How can this be correct? 6>6 X+3+4=9​
Eva8 [605]

Answer:

its not

Step-by-step explanation:

because the x equals 4 so it will be 4+3+4=9 because 3+4 equals 5 so you add 4 and get 9

7 0
2 years ago
Suppose that G(X) = F(x+ 9). Which statement best compares the graph of
podryga [215]

Answer:

Suppose that G(X) = F(x+ 9). Which statement best compares the graph of

G(X) with the graph of F(x)?

O A. The graph of G(X) is the graph of F(x) shifted 9 units try the left.

B. The graph of G(x) is the graph of F(X) shifted 9 units down.

C. The graph of G(x) is the graph of F(x) shifted 9 units up.

D. The graph of G(X) is the graph of F(x) shifted 9 units to the right.

Step-by-step explanation:

Suppose that G(X) = F(x+ 9). Which statement best compares the graph of

G(X) with the graph of F(x)?

O A. The graph of G(X) is the graph of F(x) shifted 9 units try the left.

B. The graph of G(x) is the graph of F(X) shifted 9 units down.

C. The graph of G(x) is the graph of F(x) shifted 9 units up.

D. The graph of G(X) is the graph of F(x) shifted 9 units to the right.

6 0
2 years ago
A submarine cuts through the water at an elevation of 203 meters under the sea. The sub rises, and the elevation changes by 4.3
maw [93]
The answer is -76.1 meters.

The submarine elevation before rising is -203 meters (it is negative because it is under the sea level which has 0 elevation): d₁ = -203 m
After the first rising, it moved 64.5 m: l₁ = 4.3 · 15 = 64.5 m
After the second rising, it moved 62.4 m: l₂ = 5.2 · 12 = 62.4 m

So, to calculate the elevation of the submarine after rising (d₂), we will add (because it is not going deeper, it rises toward the elevation of 0) two movements to the elevation before rising:
d₂ = d₁ - (l₁ + l₂) = -203 + (64.5 + 62.4) = -203 + 126.9 = -203 + 126.9 = -76.1.
5 0
3 years ago
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