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Slav-nsk [51]
3 years ago
11

WILL GIVE BRAINLIEST! What is the value of x to the nearest tenth?

Mathematics
1 answer:
mixer [17]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Use Law of Sines.

Find third angle, which is 26 degrees.

x/sin28=8.2/sin26

cross multiply, which becomes

xsin26=8.2sin28

then divide sin26 both sides

x=8.78

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The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: M(x) = 13 x - x2. What
My name is Ann [436]

Answer:

The number of mosquitoes is maximum for 6.5 inches rainfall.

Step-by-step explanation:

The given function is

M(x)=13x-x^2                   .... (1)

where, M(x) is number of mosquitoes in millions and x the June rainfall in inches.

We need to find the rainfall that produces the maximum number of mosquitoes.

Differential the above function with respect to x.

M'(x)=13-2x               .... (2)

Equate first derivative equal to 0.

13-2x=0

2x=13

x=\frac{13}{2}=6.5

Differential function (2) with respect to x.

M''(x)=-2

Double derivative is negative. So, the value of function is maximum at x=6.5.

Therefore, the number of mosquitoes is maximum for 6.5 inches rainfall.

4 0
3 years ago
Gale wants to compare the cost of the events.
Lera25 [3.4K]

#a

The table represents all possibilities.

  • Yes its possible .
  • The table may represent Aquarium fee more or least etc.

#b

The carnival always costs the least.

  • No its possible but not always .
  • Aquarium fee is 14.50 on the other hand carnival fee starts at 15.55.

#c

The aquarium always costs the move.

  • Impossiible

8 0
2 years ago
One tool used in genetics is called a pedigree chart,are there any advantages to using this tool?The population of a city is inc
Tanzania [10]

Answer:

A = 236,000 (1.04)^t

population in 2009 : 335,902 people

Step-by-step explanation:

Hi, to answer this question we have to apply an exponential growth function:  

A = P (1 + r) t  

Where:  

p = original population  

r = growing rate (decimal form) = 4/100 = 0.04

t= years passed from 2000

A = population after t years  

Replacing with the values given:  

A = 236,000 (1+ 0.04)^t

A = 236,000 (1.04)^t

Population in 2009.

t = 2009-2000 = 9  

A = 236,000 (1.04)^9

A = 335,902 people

Feel free to ask for more if needed or if you did not understand something.  

4 0
3 years ago
What is the equation of the line in slope intercept form using these points?
deff fn [24]

Answer:

y = -x - 1

Step-by-step explanation:

1. The slope-intercept form of any linear equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.

2. To find the slope given two points, we can use the formula \frac{y_2-y_1}{x_2-x_1} and plug in the corresponding variable.

  • \frac{5-(-2)}{-6-1}
  • \frac{5+2}{-7}
  • \frac{7}{-7}
  • -1

3. Okay, so the slope is -1x or just -x. This means that the equation looks like this so far: y = -x + b

4. To find b, the y-intercept, we can take the equation of b = y_1 - m * x_1 and plug in the values!

  • b = -2-(-1)*1
  • b = -2 + 1 * 1
  • b = -1 * 1
  • b = -1

5. Now that we have our y-intercept and slope, let's plug in those values and find the equation!

  • y = -x - 1

Therefore, the equation of the line is y = -x - 1. I hope this helped you!

3 0
3 years ago
Instructions: Match each step with the correct ordered description for how to construct a copy of line
Dmitry [639]

Answer:

The way to copy a text is you first move your mouse over the text in-tell it turns blue then press control hit c then put your little mouse text thing where you want to copy the text click hit control hit v then your are done

Hope This Helps!!!

3 0
2 years ago
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