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3 years ago

Can someone help me with these 2 problems plz

Mathematics

2 answers:

antoniya [11.8K]3 years ago

6 0

For the second one is yes

Taya2010 [7]3 years ago

4 0

For the first one I believe that the numbers are both odd and I am not sure about the second one sorry

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Directions: select the correct answer from the drop-down menu.

Andreas93 [3]

Answer:

Step-by-step explanation:

7 0

2 years ago

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A camera is mounted at a point 4000 feet away from a geyser. If the water is rising vertically at 900 ft/s when it is 3000 feet

Leno4ka [110]

Answer:

$\dot \theta = 0.144\,\frac{rad}{s}$ , $\dot \theta = 8.251\,\frac{deg}{s}$ (Option B)

Step-by-step explanation:

The trigonometric diagram is included herein as attachment. The expression is presented below:

$\tan \theta = \frac{y}{x}$

Where:

$x$ - Horizontal distance between the geyser and the camera.

$y$ - Vertical distance between the geyser and the camera.

The rate of change in terms of time is:

$\dot \theta \cdot \sec^{2}\theta = \frac{\dot y\cdot x-y\cdot \dot x}{x^{2}}$

$\dot \theta \cdot \left(\frac{1}{\cos^{2}\theta} \right) = \frac{\dot y \cdot x - y\cdot \dot x}{x^{2}}$

$\dot \theta = \left(\frac{\dot y \cdot x - y \cdot \dot x}{x^{2}} \right)\cdot \cos^{2}\theta$

$\dot \theta = \left(\frac{\dot y \cdot x - y\cdot \dot x}{x^{2}} \right)\cdot \left(\frac{x^{2}}{x^{2}+y^{2}} \right)$

$\dot \theta = \frac{\dot y \cdot x - y\cdot \dot x}{x^{2}+y^{2}}$

Finally,

$\dot \theta = \frac{\left(900\,\frac{ft}{s} \right)\cdot (4000\,ft)-(3000\,ft)\cdot \left(0\,\frac{ft}{s} \right)}{(4000\,ft)^{2}+(3000\,ft)^{2}}$

$\dot \theta = 0.144\,\frac{rad}{s}$

$\dot \theta = 8.251\,\frac{deg}{s}$

3 0

2 years ago

Calculate the distance between the two points. C(3, 2) and E(7, -1)

ipn [44]

Answer:

Step-by-step explanation:

To find the answer, we draw a right triangle

the difference between the x coordinates is 4 and the difference in the y coordinates is 3

to find the hypotenuse we do

a^2+b^2=c^2

4^2+3^2=c^2

16+9

25=c^2 and the sqrt of 25 is 5 so

c=5

5 0

3 years ago

Read 2 more answers

I need help with this

Makovka662 [10]

Answer:

Step-by-step explanation:

$a_{1}=10\\a_{n}=2a_{n-1}-5\\a_2=2*10-5=15\\a_{3}=2*15-5=25$

6 0

2 years ago

Convert fraction to decimal. 29/40 34/25 12/10 17/50

GrogVix [38]

Answer:

29/40 = 0.725 34/25 = 1.36 12/10 = 1.2 17/50 = 0.34

Step-by-step explanation:

Just divide the first number by the second number. So 29 divided by 40 is 0.725 and so on.

4 0

3 years ago