3 years ago

What is the value of k? k=

Mathematics

1 answer:

noname [10]3 years ago

8 0

Answer:

no equation given ,pls mention it in the comments

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Which ordered pair is the solution to the system of equations?

kozerog [31]

The answer and process is shown in the following picture

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2 years ago

Using Euler’s formula, how many edges does a polyhedron with 20 faces and 12 vertices have?

astra-53 [7]

Euler's formula for a polyhedron is given by:

$\begin{gathered} F+V=E+2 \\ \text{where,} \\ F=\text{faces} \\ V=\text{vertices} \\ E=\text{edges} \end{gathered}$

Make E, the subject of the formula:

$\begin{gathered} F+V=E+2 \\ E=F+V-2 \end{gathered}$

Put F = 20, V = 12, to obtain E,

$\begin{gathered} E=20+12-2 \\ E=30 \end{gathered}$

Therefore, there are 30 edges

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1 year ago

Find the value of x. round the length to the nearest tenth

Ronch [10]

Answer:

777.9 meters

Step-by-step explanation:

Notice that the angles of the right triangle are 40 and 50 degrees, with the 500 meter side adjacent to the 50 degree angle. Now, we can set up an equation: cos (50 degrees) = 500 / x. Use a calculator to find that the answer is 777.9.

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3 years ago

Read 2 more answers

Consider the equation below.

vaieri [72.5K]

Hello there

-y+2= -12(8y+8)

-y+2= -96y+96

-y+96y=96-2

95y=94

y=94/95

6 0

3 years ago

Please help me with this question. Thank you!

mr_godi [17]

A-1,6

B-(-1,-5)

c-(-8,2)

D.4,-9

E.3,8

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3 years ago