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3 years ago

Please help me on this 3 problems

Mathematics

1 answer:

Bingel [31]3 years ago

3 0

Answer:

Step-by-step explanation:

1a is 1/6

1b is about 100

1c is the predicted results were about the same as the actual outcomes

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Sin 0 = 7/25 and cos 0 = -24/25. Find tan 0

9966 [12]

Answer:

$tan \theta = - \frac{7}{24}$

Step-by-step explanation:

$sin \theta = \frac{7}{25} \ , \ cos\theta = \frac{-24}{25}\\\\tan \theta = \frac{sin\theta}{cos\theta}$

$=\frac{\frac{7}{25}}{\frac{-24}{25}} \\\\=\frac{7}{25} \times \frac{25}{-24}\\\\= - \frac{7}{24}$

4 0

4 years ago

You were given the polynomial f(x)=3x^3+13x^2+19x+k and you know that f(-2)=0find k

eduard

Answer:

k = 10

Explanation:

The initial polynomial is:

$f(x)=3x^3+13x^2+19x+k$

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

$\begin{gathered} f(-2)=3(-2)^3+13(-2)^2+19(-2)+k=0 \\ 3(-2)^3+13(-2)^2+19(-2)+k=0 \end{gathered}$

Therefore, we can solve for k as follows:

$\begin{gathered} 3(-8)+13(4)+19(-2)+k=0 \\ -24+52-38+k=0 \\ -10+k=0 \\ -10+k+10=0+10 \\ k=10 \end{gathered}$

So, the value of k is 10

6 0

1 year ago

If x*y=60 and x+y=17

e-lub [12.9K]

Answer:

the first one is 10*6 and the second one is 10+7

Step-by-step explanation:

8 0

3 years ago

What is Standard form for 278,831

WINSTONCH [101]

The answer is:
2.78831x10^5

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4 years ago

Use the rules for long division to divide 262 by 9.

Pani-rosa [81]

The answer for this problem is b

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3 years ago

Please help me on this 3 problems​

Please help me on this 3 problems