Ascale drawing of a painting is 12 inches long and 8 inches tall. the actual painting is 2 feet tall.
a) what is the scale of the drawing?
b) find the perimeter and area of the painting in the scale drawing
c) find the actual perimeter and area of the painting

Part a)

Part b) The perimeter and area of the painting in the scale drawing is 32 inches and 64 square inches respectively

Part c) The perimeter and area of the painting in the scale drawing is 8 feet and 4 square feet respectively

Step-by-step explanation:

Part a) What is the scale of the drawing?

To find out the scale drawing, divide the corresponding length in the painting by the corresponding length in the actual

so

That means

4 inches in the drawing represent 1 foot in the actual

Part b) Find the perimeter and area of the painting in the scale drawing

we know that

The length of the painting in the drawing is 8 in

Find the height of the painting in the drawing

Multiply the height of the painting in the actual by the scale drawing

so

Is a square

Find the perimeter

Find the area

therefore

The perimeter and area of the painting in the scale drawing is 32 inches and 64 square inches respectively

Part c)  Find the actual perimeter and area of the painting

we know that

The height of the painting in the actual is 2 ft

Find the length of the painting in the actual

Remember that the figure is a square (see part b)

so

The length of the painting in the actual is 2 ft

Find the perimeter

Find the area

therefore

The perimeter and area of the painting in the scale drawing is 8 feet and 4 square feet respectively

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:

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465