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3 years ago

Select the correct answer.

Mathematics

1 answer:

kondaur [170]3 years ago

5 0

Answer:

Ur welcome sir

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Please help!

Reika [66]

Answer:

(1,-5)

Step-by-step explanation:

The given system of inequalities are;

$y\:$

and

$y\:$

The point that is a solution will satisfy the two inequalities.

Checking for (1,-5)

$-5\:$ and $-5\:$

$-5\:$ : True $-5\:$ : True

This point lies in the solution region.

Checking for (1,5)

$5\:$ and $5\:$

$5\:$ : False $5\:$ : False

This point does not lie in the solution region.

Checking for (5,1)

$1\:$ and $1\:$

$1\:$ : False $1\:$ : True

This point does not lie in the solution region.

Checking for (-1,5)

$5\:$ and $5\:$

$5\:$ : True $5\:$ : False

This point does not lie in the solution region.

4 0

3 years ago

Read 2 more answers

The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm2/m

Mnenie [13.5K]

Answer:

The base is reducing at a rate of 3.4cm per min.

Step-by-step explanation:

Let The Height of the Triangle, h

Area of the triangle = A

Area of a Triangle, $A= \frac{1}{2}bh$

When $A=190 cm^2, h=10cm$

$190= \frac{1}{2}*b*10\\b=38cm$

$\frac{dA}{dt}=\frac{1}{2}h\frac{db}{dt}+ \frac{1}{2}b\frac{dh}{dt}\\\frac{dh}{dt}=1 cm/min, \frac{dA}{dt}=2cm^2/min,$

$2=\frac{1}{2}*10*\frac{db}{dt}+ \frac{1}{2}*38*1\\2=5\frac{db}{dt}+19\\2-19=5\frac{db}{dt}\\-17=5\frac{db}{dt}\\\frac{db}{dt}=-\frac{17}{5} =-3.4 cm/min$

The base is reducing at a rate of 3.4cm per min.

8 0

3 years ago

What is linear and non-linear?

bagirrra123 [75]

Answer:

<em>The word 'linear' means something having to do with a line.On a Cartesian Plane, a linear function is a function where the graph is a straight line. The line can go in any direction, but it's always a straight line. A non-linear function has a shape that is not a straight line.</em>

4 0

3 years ago

Read 2 more answers

Find an equation for the line below

tia_tia [17]

Y=0.5x-0.5
( u find the slope using rise/run then after finding the slope u use the equation and a point on the graph to find the y-intercept

5 0

2 years ago

The equation 116 = -7(4 - 2p) + 4p<br> is equivalent to which of the following?

Alexxx [7]

Answer:

Step-by-step explanation: