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kupik [55]
3 years ago
6

What is the value of the expression below when y=6y=6? y^2 -5y-4 y 2 −5y−4

Mathematics
1 answer:
Elodia [21]3 years ago
7 0

Answer:

2

Step-by-step explanation:

Given expression:

y^2 - 5y - 4

y = 6

Substitute y = 6 into the expression

y^2 - 5y - 4

6^2 - 5(6) - 4

(6*6) - (5*6) - 4

36 - 30 - 4

36 - 34

2

The value of the expression y^2 - 5y - 4 is 2 when y = 6

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Find the equation of the sphere passing through pleft parenthesis negative 4 comma 7 comma 6 right parenthesis(−4, 7, 6) and qle
Oksi-84 [34.3K]

The equation of a sphere is:

(x – h)^2 + (y – k)^2 + (z – l)^2 = r^2

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Using the midpoint formula, the coordinate of the center is:

h = (-4 + 6) / 2 = 1

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so the equation becomes:

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we plug in any point, in this case point P to solve for r:

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8 0
3 years ago
. A triangle has side lengths of 8, 7, and 14. To the nearest tenth of a degree find the measure of the angle opposite the side
4vir4ik [10]

Given:

The measure of three sides of a triangle are 8, 7 and 14.

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The measure of the angle opposite the side of length 8.

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Let a=8, b=7 and c=14, then by using Law of Cosine, we get

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7 0
2 years ago
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cricket20 [7]

Answer:

x=5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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