A biologist was observing a pack of wolves. There were 8 female wolves and the ratio of female wolves to male wolves was 4:5. A little later some more male wolves arrived and the ratio was now 1:2. How many more male wolves arrived? more male wolves arrived.​

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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:

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.