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3 years ago

Solve the inequality. -z+20>z+20

Mathematics

2 answers:

ehidna [41]3 years ago

7 0

$-z+20>z+20\\
-2z>0\\
z$

Scilla [17]3 years ago

6 0

$-z+20 > z+20\ \ \ \ \ \ |subtract\ 20\ from\ both\ sides\\\\-z > z\ \ \ \ \ |add\ z\ to\ both\ sides\\\\0 > 2z\\\\2z < 0\ \ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\z < 0\\\\z\in(-\infty;\ 0)$

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If each unit cube has edges of length 1/2 foot what is the volume of the blue outlined prism

postnew [5]

Answer:

The answer is 2.5

Step-by-step explanation:

each cube has a volume of 0.125 and the cube can hold 20 of them.

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kozerog [31]

Question is:

Fill in the blanks to solve $\frac{48}{x} =8$ .

Answer:

$x = 6$

Step-by-step explanation:

Given

$\frac{48}{x} =8$

Required

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3 years ago

At noon, ship A is 130 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is

Hitman42 [59]

Answer:

answer = 12.87 km/h

Step-by-step explanation:

Given

Ship A is sailing east at 25 km/h = $\frac{dx}{dt}$

ship B is sailing north at 20 km/h = $\frac{dy}{dt}$

here x and y are the sailing at t = 4 : 00 pm for ship A and B respectively

so we get x = 4 ×25 =100 km/h

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At noon, ship A is 130 km west of ship B (12:00 pm)

so equation will be

$z^2 = (130-x)^2 + y^2......................(i)\\put x = 100 and y = 80 \\\\we | | get \\$

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$\frac{dz}{dt} = \frac{( -20\times25 + 80\times20)}{\sqrt{7300} }$

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3 years ago

Help me pleaseeee pleaseeee

Shtirlitz [24]

Answer:

I think it is 1.5 or 1/2

Step-by-step explanation:

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IceJOKER [234]

That is how I solved that :)

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