Use an identity to find the value of the expression. Do not use a calculator.sin2 70° + cos2 70°

A. 0.70
B. 0
C. 0.49
D. 1


Answer: D

Mathematics

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Provide an appropriate response.Which one is correct, and which one is wrong? Give reasons for your answers.(a)   =  = (b)  

src="https://sciemce.com/media/4/ppg__tttt0615190936__f1q134g7.jpg" style="vertical-align: -21.0px;" /> =   = 0

What will be an ideal response?

Mathematics

A deposit slip for a savings account is shown below. Find the subtotal and then the total deposit. Cash247.15Checks (properly endorsed)112.98 46.09Total from reverse side351.89Subtotal Less cash25.57  Total deposit ? Subtotal = __________, Total deposit = __________ ?

What will be an ideal response?

Mathematics

Plot the number 2.8 on the real number line.

A.

B.

C.

D.

E.

Mathematics

Find the domain of the rational function.f(x) = 

A. All real numbers except -2 and 5 B. All real numbers except 0 C. All real numbers except 2 and -5 D. All real numbers except 3 and -3

Mathematics