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3 years ago

PLEASE HELP!!!

Mathematics

1 answer:

ss7ja [257]3 years ago

4 0

Answer:b

Step-by-step explanation:

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graph each equation for the interval -360 is less than or equal to x and 360 is greater than or equal to x: y=1/2cos(2x+60)

lianna [129]

Answer:

See graph

Step-by-step explanation:

We want to graph $y=\frac{1}{2}\cos(2x+60\degree)$ on the interval $-360\degree \le x \le 360\degree$

We need to plot some few points

$(-30\degree,\frac{1}{2})$

$(-15\degree,\frac{\sqrt{3}}{4})$

$(0\degree,\frac{1}{4})$

$(15\degree,0)$

$(30\degree,-\frac{1}{4})$

$(45\degree,-\frac{\sqrt{3}}{4})$

$(60\degree,-\frac{1}{2})$

$(75\degree,-\frac{\sqrt{3}}{4})$

$(90\degree,-\frac{1}{4})$

$(105\degree,0)$

$(120\degree,\frac{1}{4})$

$(135\degree,\frac{\sqrt{3}}{4})$

$(150\degree,\frac{1}{2})$

This will give us one cycle.

We then use the pattern to complete the graph on the interval

$-360\degree \le x \le 360\degree$

6 0

3 years ago

A hot air balloon was flying at an altitude of 300 meters when the pilot decided to land by descending at a rate of 2 meters per

Brums [2.3K]

Answer:

the descending took 150 seconds

Step-by-step explanation:

5 0

3 years ago

Find the approximate area of a circle with radius equal to 8 ft. (Use = 3.14.)

Tcecarenko [31]

The area of a circle is given by

$A=\pi r^2$

If you want to approximate pi with 3.14, the formula becomes

$A = 3.14\times 8^2 = 3.14 \times 64 = 200.96$

8 0

4 years ago

Type the correct answer in each box. use numerals instead of words. what is the solution set of this inequality?

natta225 [31]

Answer:

(-8, -4) U (0, 4)

Step-by-step explanation:

3 0

3 years ago

4564644*4434688=124x^2

Anna [14]

Answer:

Step-by-step explanation:Let's solve your equation step-by-step.

(4564644)(4434688)=124x2

Step 1: Simplify both sides of the equation.

20242771971072=124x2

Step 2: Subtract 124x^2 from both sides.

20242771971072−124x2=124x2−124x2

−124x2+20242771971072=0

Step 3: Subtract 20242771971072 from both sides.

−124x2+20242771971072−20242771971072=0−20242771971072

−124x2=−20242771971072

Step 4: Divide both sides by -124.

−124x2

−124

−20242771971072

−124

x2=

5060692992768

Step 5: Take square root.

x=±√

5060692992768

x=404039.801328,−404039.801328

Answer:

x=404039.801328,−404039.801328

3 0

3 years ago