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3 years ago

Write (4,-1), with a slope of -3 in point-slope form.

Mathematics

1 answer:

yawa3891 [41]3 years ago

5 0

Answer:

y+1=-3(x-4)

Step-by-step explanation:

first you want to plug in the numbers into the formula which y-y1=m(x-x1).

then you get y+1=-3(x-4)

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Heyo! I need help with the picture below! Thanks!

ad-work [718]

3) 4r⁻³ · 2r² = 4·2 r⁽⁻³⁺²⁾ = 8 r⁻¹ = 8/r

4) 8k⁵

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3 years ago

Let f(x) = cos(x). Use Addition or Subtraction Formulas to show the following.

uysha [10]

Answer:

First blank is cos(h)cos(x)

Second blank is sin(x)

Step-by-step explanation:

Look up the identity and apply it here

7 0

2 years ago

Rápido y fácil, trigonometría. Urgente porfavor

enot [183]

Answer:

The angle $\theta$ measures approximately $28.81^o$

Step-by-step explanation:

Since this problem involves the finding of an angle in a right angle triangle for which we know the opposite side and the adjacent side, the trigonometric function that relates them is the tangent:

$tan(\theta)=\frac{opposite}{adjacent}$

Then, for our case we get a starting equation that reads:

$tan(\theta)=\frac{opposite}{adjacent} \\tan(\theta)=\frac{7.7}{14}$

and for which we need to solve for $\theta$ . Then we use the arctangent function to get the final answer:

$tan(\theta)=\frac{7.7}{14} \\\theta=arctan(\frac{7.7}{14})\\\theta= 28.81^o$

3 0

3 years ago

You flip a coin 10 times and find the experimental probability of flipping tails to be 0.7. Does this seem reasonable? Explain.

Vedmedyk [2.9K]

No. I would say 50/50 chance. This answer probably isnt helpful :/

8 0

3 years ago

If f is a function that f(f(x)) = 2x² + 1, which is the value of f(f(f(f(3)))? Please help!

Sloan [31]

$f(f(3))=2\cdot3^2+1=19\\f(f(f(f(3))))=2\cdot19^2+1=723$

5 0

3 years ago