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nexus9112 [7]
3 years ago
5

Plzzzzzz help me need to pass this

Mathematics
1 answer:
gavmur [86]3 years ago
6 0
-2r+3 ≥ 19
-2r ≥ 19-3
-2r ≥ 16
2r ≤ -16
r ≤ -16/2
r ≤ -8

r ∈ (-∞; -8]

Your answer is C

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Write the expression as the sine, cosine, or tangent of an angle. cos 107° cos 42° + sin 107° sin 42°
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Let a =107°   and b=42°;

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Which expression uses the associative property to make it easier to evaluate 8(1\2 · 1\3)? HELP PLZZZZ ​
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5 0
3 years ago
HELP WHAT IS THE ANSWERS
Temka [501]

Answer:   Letter Choice, (B)  ====>  4,256 pi cm^2


Step-by-step explanation:

<u>Formula: Surface Area of Cylinder  =   (2pi ) (r^2 )   +  2pi (r) (h)</u>



<u>Showing Work:</u>

<u>Radius  of the Base ===>  28cm</u>

<u>Height  =====>  48cm </u>

(2pi ) (r^2)    +   2pi (28)(48)

2 (pi) (r^2)     +    (circumference) (height)

2( pi) (r^2      +    2)( pi)(r)(h)

2 pi * (2) (r^2      +    (2)(r)(h)

2pi * (r^2        +       rh)

2(r)(pi)(r           +         h)

2( 28)(pi)(28       +       48)

56(pi)(76)

4256(pi)^2

<u>Therefore, Your Answer  ======>   Letter Choice; (B)  ======>  4,256pi cm^2</u>





Hope that helps!!!!!                                       : )


3 0
3 years ago
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