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harkovskaia [24]

3 years ago

15

What is f(1/3 F(1/3)=-3x+7

1 answer:

yan [13]3 years ago

6 0

Answer:

6

Step-by-step explanation:

-3(1/3)+7

6...this is it

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The naturalist views an elephant in the distance, but he doesn’t know how far away the elephant is from him. He takes a view to

andrezito [222]

Answer:

10.11 feet

Step-by-step explanation:

Let H ft be the elephant's height and x ft be the initial distance from naturalist to the elephant.

1. Naturalist takes a view to find the a 22 degree angle of elevation, then

$\tan 22^{\circ}=\dfrac{H}{x}.$

2. Naturalist moves backwards from the elephant pacing off a distance of 27 feet, the distance from naturalist to the elephant becomes (x+27) ft. He takes a second view and determines a new angle of elevation of 11 degrees. Then

$\tan 11^{\circ}=\dfrac{H}{x+27}.$

3. Solve the system of two equations:

$\left\{\begin{array}{l}\tan 22^{\circ}=\dfrac{H}{x}\\\tan 11^{\circ}=\dfrac{H}{x+27}\end{array}\right.\Rightarrow \dfrac{x+27}{x}=\dfrac{\tan 22^{\circ}}{\tan 11^{\circ}}\approx 2.0785,\\ \\ \\x+27=2.0785x,\\ \\1.0785x=27,\\ \\x\approx 25.0347\ ft.$

Then

$H=x\cdot \tan 22^{\circ}\approx 10.11\ ft.$

3 0

3 years ago

The map shows the location of four places in a school. A coordinate plane is shown. There is a point at 5, 2 labeled Front offic

REY [17]

The library is in the 4th quadrant (+x,-y)

So the English class must have a positive x and a negative y

(4,-5) is the only point that fits

6 0

3 years ago

Read 2 more answers

66 oz = __lb in a mixed number

aivan3 [116]

Answer:

$4\frac{1}{8}$ pounds

Step-by-step explanation:

1 pound = 16 ounces

$\frac{66}{16} =\frac{y}{1}$

16 × y = 66 × 1

16y = 66

16y ÷ 16 = 66 ÷ 16

$y=4\frac{1}{8}$

7 0

3 years ago

Read 2 more answers

IF CORRECT, I WILL MARK AS BRAINLIEST

Rainbow [258]

a)

$P(t) = 19100. e^{0.06t}$

b) P(8) =30866

Use formula:

$P(t) = P. e^{rt}$

a)

Here, P = 19100

r = 6% = 0.06

$P(t) = 19100. e^{0.06t}$

b) t = 2008 - 2000 = 8

$P(8) = 19100. e^{0.06\times 8}$

$P(8) = 19100. e^{0.48}$

$P(8) = 19100\times 1.616\\\\P(8) = 30,865.6\\\\P(8) \approx 30,866$

8 0

3 years ago

Solve for x. I NEED HELP ASAP!

galina1969 [7]

Answer:

x = 105

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 7, thus

sum = 180° × 5 = 900°

Sum the interior angles and equate to 900

x + 102 + 165 + 123 + x + 11 + 128 + 161 = 900, that is

2x + 690 = 900 ( subtract 690 from both sides )

2x = 210 ( divide both sides by 2 )

x = 105

6 0

3 years ago