Valerie and Bret have a total 27 dog show ribbons. Bret has twice as many ribbons as Valerie. How many ribbons does each have?

BRETT 18 VALERIE 9

Step-by-step explanation: POGGERS

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

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: