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3 years ago

Select the point that is a solution to the system of inequalities. yx^2-4

Mathematics

2 answers:

creativ13 [48]3 years ago

6 0

Answer:

Step-by-step explanation:

aalyn [17]3 years ago

3 0

Answer:it’s C

Step-by-step explanation:

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The following table shows a proportional relationship between x and y.

RUDIKE [14]

Answer:

Assume x is directly proportional to y :

$y \: \alpha \: x \\ y = kx$

when y is 9, x is 2:

substitute to find value of k :

$9 = (k \times 2) \\ k = \frac{9}{2}$

Therefore, equation is:

${ \boxed{ \boxed{2y = 9 x}}}$

8 0

3 years ago

Please help i dont understand

Roman55 [17]

Your answer would be 46.50 because you would divide 31 in half (for the 50%) then add that to the 31. So 31+15.50= $46.50 hope this helps. If not let me know

7 0

3 years ago

A ladder 10 feet long rests against a vertical wall. Initially, the top of the ladder is 8 feet above the ground. If the top of

lora16 [44]

Step-by-step explanation:

Let vertical height of ladder from ground be y and

horizontal distance of the base of the ladder from the wall be x respectively.

Length of the ladder = l (constant) = 10 ft

Using Pythagoras theorem:

${l}^{2} = {y}^{2} + {x}^{2}$

Differentiate both sides w.r.t time

$0 = 2y \frac{dy}{dt} + 2x \frac{dx}{dt}$

$y \frac{dy}{dt} + x \frac{dx}{dt} = 0$

We know that (After 1 sec, y = 6 ft and x = 8 ft ; dy/dt = 2 ft/sec)

$6\times 2 + 8\frac{dx}{dt} = 0$

$\frac{dx}{dt} = - 1.5 ft \: per \: sec$

( Ignore - ive sign)

Therefore, bottom of the ladder is sliding away from the wall at a speed of 1.5 ft/sec one second after the ladder starts sliding.

8 0

3 years ago

If 5(p + 3) = 18 + 2p, what is the value of p?

Rina8888 [55]

Answer:

p=1

Step-by-step explanation:

5(p+3)=18+2p

5p+15=18+2p

5p-2p=18-15

3p=3

p=3

p=1

5 0

3 years ago

Read 2 more answers

Solve number 25 pls i dont know how to put it into an equation

Allushta [10]

Answer:

Equation to solve is x+x+120=180

Solution to equation: x=30

Step-by-step explanation:

The angles in a triangle have a sum 180 degrees.

You know one angle is 120 degrees.

If you assume another angle has a measurement of x degrees, then the remaining angle has a measurement of x degrees. We know this because congruent means they will have the same measurement.

So we have this equation to solve:

x+x+120=180

Combine like terms:

2x+120=180

Subtract 120 on both sides:

2x=180-120

Simplify:

2x=60

Divide both sides by 2:

x=60/2

Simplify:

x=30

8 0

3 years ago