Which of the following will always give congruent triangles?Question 8 options:Three sets of congruent anglesOne set of congruent sides and two sets of congruent anglesOne set of congruent sides and one set of congruent anglesTwo sets of congruent sides and one set of congruent angles

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

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 bolded word " farsighted" could be replaced with visionary.