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Lina20 [59]
3 years ago
5

Find the value of the sec 19 degrees using you calculator. (This might be a really simple question but I just don't know how to

plug it into my calculator)
Answers: 0.946, 1.011, 0.989, 1.058
Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

If you're using a graphing calculator, make sure you're in DEG mode (not RAD). There probably is no button for the secant function, but remember that secant is defined as the reciprocal of cosine:

\sec19^\circ=\dfrac1{\cos19^\circ}

So on your calculator, you'd type

1/cos(19)

and you should get about 1.0576.

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For the function h(x) defined below, find function f(x) and g(x) so that h(x)=(f^ g)(x) . h(x) = ((x + 2)/x) ^ 3
dem82 [27]

Answer:

Step-by-step explanation:

c

4 0
2 years ago
Solve for the missing item in the following. (Do not round intermediate calculations. Round your answer to the nearest cent.)
iogann1982 [59]

9514 1404 393

Answer:

  $1904.76

Step-by-step explanation:

The interest formula is ...

  I = Prt . . . . interest on principal P at rate r for t years

Solving for P, we find ...

  P = I/(rt) = 200/(0.07·1.5) = 200/0.105 ≈ 1904.76

The principal amount was $1904.76.

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2 years ago
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schepotkina [342]

Answer:

307/500

Step-by-step explanation:

4 0
2 years ago
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Fiona wrote the linear equation y = y equals StartFraction 2 over 5 EndFraction x minus 5.x – 5. When Henry wrote his equation,
xeze [42]

Answer:

D. x-\frac{5}{2}y =  \frac{25}{2}

Step-by-step explanation:

Given

y = \frac{2}{5}x - 5

Required

Determine its equivalent

<em>From the list of given options, the correct answer is</em>

x - \frac{5}{2}y = \frac{25}{2}

This is shown as follows;

y = \frac{2}{5}x - 5

Multiply both sides by \frac{5}{2}

\frac{5}{2} * y = \frac{5}{2} * (\frac{2}{5}x - 5)

Open Bracket

\frac{5}{2} * y = \frac{5}{2} * \frac{2}{5}x - \frac{5}{2} *5

\frac{5}{2}y = x - \frac{25}{2}

Subtract x from both sides

\frac{5}{2}y - x = x -x - \frac{25}{2}

\frac{5}{2}y - x = - \frac{25}{2}

Multiply both sides by -1

-1 * \frac{5}{2}y - x * -1 = - \frac{25}{2} * -1

-\frac{5}{2}y + x =  \frac{25}{2}

Reorder

x-\frac{5}{2}y =  \frac{25}{2}

<em>Hence, the correct option is D</em>

x-\frac{5}{2}y =  \frac{25}{2}

9 0
2 years ago
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I need help please ?!!!!
Alecsey [184]

Answer:

89

Step-by-step explanation:

= √ 64 +9²

=8 +81

=89

7 0
3 years ago
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