Read through each scenario. Under the scenario, write which lab safety rule is being broken. 1. During the lab in class, Carlos realizes his group needs more chemicals. Without asking the
teacher, he leaves the room and enters the science prep room and storage areas to retrieve
more chemicals for his lab.

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²