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posledela
3 years ago
15

6. Solve this inequality: j/4 -8 < 4.

Mathematics
1 answer:
Vaselesa [24]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Given

\frac{j}{4} - 8 < 4 ( add 8 to both sides )

\frac{j}{4} < 12

Multiply both sides by 4 to clear the fraction

j < 48 → D

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(4-5i)/(2+4i) plz help!!
ArbitrLikvidat [17]

Answer:

-3/5-13i/10

Step-by-step explanation:

4 0
3 years ago
I need help with this question ASAP!
mote1985 [20]
The answer is c because 3/6 simplified is equal to 1/2
4 0
2 years ago
PLS_HELP
Sindrei [870]

Answer: x = 3.4

Step-by-step explanation: took the test and got it right. if you need help on this kind of work u can use things like (graphing gens) or math to help you more.

4 0
3 years ago
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konstantin123 [22]

For the equation  F(x) = ax² + bx + c we have:

  • maximum value if a<0
  • minimum value if a>0

F(x) = -3x² + 18x + 3    ⇒  a = -3, b = 18

a < 0    ⇒   the function has a maximum value

Quadratic function has the maximum value (or minimum) at vertex of its parabola.

The maximum value is k at x=h where:  h=\dfrac{-b}{2a}  and  k = F(h)

h=\dfrac{-18}{2\cdot(-3)}=3\\\\F(3)=-3\cdot3^2+18\cdot3+3=-27+54+3=30

Therefore:

<h3> The function has a maximum value of 30 at x = 3</h3>

3 0
1 year ago
I really need helppppp
Dmitry [639]

Answer: the distance of the boat from the foot of the lighthouse is 290.5 feet.

Step-by-step explanation:

The right angle triangle ABC representing the scenario is shown in the attached photo.

Angle A is alternate to the angle of depression, hence, they are the same.

The height of the lighthouse represents the opposite side of the right angle triangle. The distance, x of the boat from the foot of the lighthouse represents the adjacent side of the right angle triangle.

To determine x, we would apply

the tangent trigonometric ratio.

Tan θ, = opposite side/adjacent side. Therefore,

Tan 11.1 = 57/x

x = 57/Tan 11.1 = 57/0.1962

x = 290.5 feet to the nearest tenth.

6 0
3 years ago
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