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2 years ago

PLZ HELP!This is my only question left!!! plzzzzz

Mathematics

1 answer:

hram777 [196]2 years ago

5 0

Answer:

12.84 degrees

Step-by-step explanation:

sin(x)=2/9

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Find the solution of the system of equations.<br>6x + 8y = -8<br>x + 4y = 4<br>( , )

ladessa [460]

Answer:

the solution is (-4, 2)

Step-by-step explanation:

6x + 8y = -8

x + 4y = 4

... can be solved using elimination by addition and subtraction, among other methods. Multiply the second equation by -2 to obtain

6x + 8y = -8

-2x - 8y = -8

Combining these results in

4x = -16. Thus, x = -4.

Substituting -4 for x in x + 4y = 4 results in

-4 + 4y = 4, or 4y = 8, or y = 2

Then the solution is (-4, 2)

8 0

3 years ago

Help me PLEASEEEEE I need help

V125BC [204]

Answer: maybe 18.6 °F?

7 0

2 years ago

Read 2 more answers

How do i do 3 part a ?

WINSTONCH [101]

In general the binomial expansion is

$(a+b)^n = {n \choose 0} a^0 b^n + {n \choose 1} a^1 b^{n-1} + {n \choose 2} a^2 b^{n-2} + ... + {n \choose n} a^n b^0$

So in our case, because we want ascending powers of x we'll write,

$(-3x + 1)^{11} = {11 \choose 0} (-3x)^0 1^{11} + {11 \choose 1} (-3x)^{1} 1^{10} + {11 \choose 2} (-3x)^{2} 1^9 + {11 \choose 3 } (-3x)^3 1^8 + ...$

We need to calculate the binomial coefficients:

${11 \choose 0} = 1$

${11 \choose 1} = 11$

${11 \choose 2} = \dfrac{11 \times 10}{2} = 55$

${11 \choose 3} = \dfrac{11 \times 10 \times 9}{3 \times 2} = 165$

$(-3x+1)^{11} = 1 (-3x)^0 1^{11} + 11(-3x)^{1} 1^{10} + 55 (-3x)^2 1^{9} + 165 (-3x)^3 1^8 + ...$

$(1-3x)^{11} = 1 -33 x + 495 3x^2 - 4455 x^3+ ...$

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3 years ago

Math question down below

Andrei [34K]

Eq. of given line is x = -2 》x + 2 = 0

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3 years ago

The cost of making a phone call is $0.40 plus $0.07 for each additional minute. Write an inequality) to find the number of minut

grandymaker [24]

Answer:

Step-by-step explanation

$20 but im not for sure so if im wrong im sorry

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3 years ago