What is the simplified form of the following expression?
StartFraction 10 y z over negative 2 z EndFraction
(1 point)
Responses
negative 5 y z
Image with alt text: negative 5 y z
negative 5 y
Image with alt text: negative 5 y
negative 5 y z squared
Image with alt text: negative 5 y z squared
5y
2 answers
The simplified form of the expression is 5y.
The temperature at the end of the day was 64 degrees. The temperature had increased twice during the day, once by 8 degrees and another time by 4 degrees.
Which expression shows what the temperature was at the start of the day?
(1 point)
Responses
64 – 8 – 4
64 – 8 – 4
64 + 8 – 4
64 + 8 – 4
64 – 8 + 4
64 – 8 + 4
78 + 5 + 7
Which expression shows what the temperature was at the start of the day?
(1 point)
Responses
64 – 8 – 4
64 – 8 – 4
64 + 8 – 4
64 + 8 – 4
64 – 8 + 4
64 – 8 + 4
78 + 5 + 7