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3 years ago

What is the zero of the liner function of f(x)= 3x+18?

Mathematics

1 answer:

aivan3 [116]3 years ago

5 0

Answer

The zero or roots would be x= -6

Step-by-step explanation:

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What is 6% of 7500 + 5% of 7500

Kay [80]

Answer: It should be 825

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

3. Is XY Tangent to circle Z? Y 12 X (20 Z 18

Ratling [72]

Answer:

XY is a tangent

Step-by-step explanation:

Given

$XY = 12$

$WY = 20$

$WZ = 8$

Required

Is XY a tangent?

XY is a tangent if:

$WY^2 = XY^2 + WX^2$

Because XY should make a right angle at point X with the circle

Where

$WX = 2 * WZ$

So, we have:

$WY^2 = XY^2 + WX^2$

$WY^2 = XY^2 + (2*WZ)^2$

$WY^2 = XY^2 + (2WZ)^2$

$WY^2 = XY^2 + 4WZ^2$

This gives:

$20^2 = 12^2 + 4*8^2$

$400 = 144 + 256$

$400 = 400$

Yes, XY is a tangent

4 0

2 years ago

Here are the prices of five new skateboards, in dollars: 75, 82, 100, 120, 140.

Lynna [10]

The standard deviation INCREASES

Step-by-step explanation:

Standard deviation is used to show how the points of the data deviate from the mean. The formulae for deriving standard deviation is attached. As seen from the formulae, the greater the variance of the data from the mean, the higher the Standard Deviation.

The mean of the given data points is $103.4. $450 is way off from this mean meaning that there is a large variance in this data point.