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4 years ago

Y= -5x-10 y=6x+12 solve by substitution

Mathematics

2 answers:

Mamont248 [21]4 years ago

4 0

Answer:

(-2,0) x=-2 y=0

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation

Hope this helps!

jasenka [17]4 years ago

4 0

Answer:

Step-by-step explanation:

y+10=−5x

− 5 y+10 =x

x=− 5 y+10

----------------

y−12=6x

y−12 /6=x

x= y−12 /6

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If n is a positive integer, then lim n→∞ 1/n[(1/n)^2+(2/n)^2+...+((n-1)/n)^2] can be expressed as...

Svetach [21]

Answer:

you ended up having = 1/n^3[1^2+2^2+3^2...(n-1)^2]

hope this helps :')

7 0

3 years ago

Evaluate each trigonometric equation for θ.

liberstina [14]

Answer:

sinФ = 8/17

cosФ = 15/17

tan Ф = 8/15

csc Ф = 17/8

sec Ф = 17/15

cot Ф = 15/8

Step-by-step explanation:

Let us revise the trigonometry functions

Sin(x) = opposite/hypotenuse

Cos(x) = adjacent/hypoteouse

Tan(x) = opposite/adjacent

Csc(x) = hypotenuse/opposit

Sec(x) = hypotenues/adjacent

Cot(x) = adjacent/opposite

In the given figure

The opposite side to angle Ф = 8

The adjacent side to angle Ф = 15

Find the hypotenuse using Pythagoras' theorem

$Hypotenuse = \sqrt{8^{2}+15^{2} }$

$Hypotenuse = \sqrt{64+225}$

$Hypotenuse = \sqrt{289}$

$Hypotenuse = 17$

Let us use the rules above to find the trigonometry functions

sinФ = 8/17

cosФ = 15/17

tan Ф = 8/15

csc Ф = 17/8

sec Ф = 17/15

cot Ф = 15/8

4 0

3 years ago

What is 33/p=3/28 Solve the proportion

mixer [17]

Answer:

280

Step-by-step explanation:

you multiply 10 to 33 and that is p

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Answer:

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Step-by-step explanation:

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Monica [59]

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

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3 years ago