Answer:
a is 39
b is 57
Step-by-step explanation:
you were given two different expressions to substitute.
the first one is p = 8 and d = 1/7
so we substitute into 5p - 7d
that is 5(8) - 7(1/7)
we get 40 - 1
which if we go ahead to evaluate we get 39
The second one p = 3 and d = -6
so we get 5(3) - 7(-6)
we get 15 - (-42)
if we go ahead to evaluate we get 15 + 42
two negative meeting each other gives you positive.
then it going too be 57
Answer:
For a scientific experiment, a physicist must make sure that the temperature of metal at 0° C gets no colder than -80° C. The physicist changes the metal’s temperature at a steady rate of -4° C per hour. For how long can the physicists change the temperature?
Step-by-step explanation:
Answer:
Honestly this is a bit easy but
Step-by-step explanation:
just look at the graph and see what letter matches with the other one. The answers are R and C, B and Q(i think, its blurry), D and S, F and E, A and P(its blurry so it might be wrong)PLEASE VOTE 5 STARS AND PRESS THANKS
∠1 and ∠3 are complementary,
∠1 = ∠2,
so
∠2 and ∠3 are complementary.
Answer:
so whats the question??
Step-by-step explanation:
