1 year ago

Evaluate sin 315 without a calculator

Mathematics

1 answer:

Dmitry [639]1 year ago

3 0

Answer:

-0.7071.

Step-by-step explanation:

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Graph the line by locating any two ordered pairs that satisfy the equation y = 1/4x+1

Tom [10]

How I would do it is place a point at 1 then go up 1 over 4 because of your slope 1/4. Same as for going down except down 1 over 4. Hope this helped:)

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3 years ago

If EF = 6 and EG = 21, find the value of FG. The drawing is not to scale.

insens350 [35]

EF = 6

EG = 21

You would subtract EF from EG to find FG:

21 - 6 = 15.

The answer is B.) 15

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2 years ago

Solve for x² in x²-3x+2=0

Naddika [18.5K]

$x^2-3x+2=0\\x^2-x-2x+2=0\\x(x-1)-2(x-1)=0\\(x-2)(x-1)=0\\x=2 \vee x=1\\\\x^2=4 \vee x^2=1$

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2 years ago

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The population of bacteria can be modeled by the function below, where t represents the time since the population started decayi

Oksana_A [137]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. I will assume the function is:

$f(t) = 15(0.86)^t$

Required

Determine the rate of decay

In an exponential function $f(x) = ab^x$ ,

The decay rate of the function is calculated as:

$1 - r = b$

By comparison:

$b = 0.86$

So, the equation becomes:

$1 - r = 0.86$

Make r the subject

$r = 1 - 0.86$

$r = 0.14$

<em>The rate of decay is 0.14</em>

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2 years ago

You buy butter for $3.31 a pound.

Sav [38]

Answer:

$0.23

Step-by-step explanation:

Theres 16 ounces in a pound. 16-1.7=14.3

divide $3.31 by 14.3

0.23

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2 years ago

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