3 years ago

2xy when x = 5 and y = -3

Mathematics

1 answer:

Stels [109]3 years ago

5 0

Answer:

the answer is -30

Step-by-step explanation:

2xy=2*5*-3

= -30

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Find the distance between these points. A(5,8), B(-3,4)

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Answer:

Distance between the points is 8.94 units

Step-by-step explanation:

General formula:

${ \boxed{ \bf{distance = \sqrt{ {(x_{1} - x _{2} )}^{2} + {(y _{1} - y _{2} ) }^{2} } }}}$

substitute:

${ \sf{ = \sqrt{ {(5 - ( - 3))}^{2} + {(8 - 4)}^{2} } }} \\ = { \sf{ \sqrt{64 + 16} }} \\ = { \sf{ \sqrt{80} }} \\ = 8.94 \: units$

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Divide 5 by 2 representing each box by the price. Which equals to $2.50 each box.

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3 years ago

Evaluate the function for f(3). f(x) = -3x - 8

scoundrel [369]

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3 years ago

17)Let f(x) = -2x + 5 and g(x) = 9x2 + 4. Find f(8) + g(8) . A)565 B)569 C)564 D)560

siniylev [52]

Answer:

answer B $\boxed{ \ 569 \ }\\$

Step-by-step explanation:

f(8)=-2*8+5=-11

g(8)=9*8*8+4=580

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