For the given triangle, the slope of ZX is , the slope of ZY is , and the slope of XY is 2. Which statement verifies that triangle XYZ is a right triangle? The slopes of ZX and ZY are opposite reciprocals.
The slopes of XY and ZY are opposite reciprocals.
The slopes of ZX and ZY have opposite signs.
The slopes of XY and ZY have opposite sign

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: