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3 years ago

Use the half angle identity to determine cos105

Mathematics

2 answers:

Lisa [10]3 years ago

7 0

You haven’t showed us the picture

Natalka [10]3 years ago

3 0

Answer:

$-\frac{\sqrt{2-\sqrt{3} } }{2}$

Step-by-step explanation:

B on edge

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13% of 400 is what number

Alchen [17]

Answer:

52 = W

Step-by-step explanation:

Is means equals and of means multiply

13% * 400 = W

Change to decimal form

.13 *400 = W

52 = W

7 0

4 years ago

Where would you plot the vertex on the graph of the following absolute value equation? enter your answer as an ordered pair (x,y

makvit [3.9K]

Answer:

The absolute value vertex is (5, 10). Please check that graph is also attached for the absolute equation with vertex (5, 10).

Step-by-step explanation:

Considering the absolute value equation

$y=|x-5|+10$

To find the x coordinate of the vertex, set the inside of the absolute value $x - 5$ equal to zero.

In this case,

$x - 5=0$

$x=5$

Replace the variable x with 5 back into the equation and solve for y.

$y=|(5)-5|+10$

$y=0+10$

$y = 10$

Therefore, the absolute value vertex is (5, 10). Please check that graph is also attached for the absolute equation with vertex (5, 10).

Keywords: absolute value function, vertex

Learn more about absolute value function from brainly.com/question/6507101

#learnwithBrainly

8 0

3 years ago

The base of a triangle is 2 more than twice the height of the triangle. Find the measure of the base and the height if the area

vekshin1

B = 2 + 2H
A = 20 ft^2
H = H

Since the Area of a Triangle is Base * Height then the formula should be:
A = BH
20 = H(2+2H)
20 = 2H^2 + 2H
0 = 2H^2 + 2H - 20

Find the zeros of the quadratic equation through substituting the values of a,b, and c. You will get the zeros of x = 2.7 and -3.7. The only thing that would make sense is you use the x=2.7 because there are no negative heights.

Since b = 2h+2
b= 2(2.7) + 2
b= 5.4 + 2
b=7.4

I don't know where you got 4 and 10, but what I got is different.

8 0

3 years ago

Max car holds 18 gallons of gasoline driving on the highway the car uses approximately 2 gallons per hour. let H represent the n

RSB [31]

Y= 18 gallons-2(h)
y is what you're trying to find out and since there are 18 gallons in the tank after every hour you would have 2 less gallons. So, you can multiply how many hours he's been driving by the 2 gallons and subtract it from 18

3 0

3 years ago

Find the range.<br> 3 –9 7 –1 5 –4 2

Fed [463]

Answer: The range is 16 :)

Step-by-step explanation:

The lowest number is -9 and the highest is 7. the difference between those is 16.

4 0

4 years ago