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3 years ago

Are the given angles complementary, supplementary, or neither?

Mathematics

1 answer:

const2013 [10]3 years ago

4 0

B. Complementary means totaling 90 degrees, and supplementary means totaling 180 degrees.

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What is the domain of the function y equals 2 square root of

Helga [31]

Answer:

Domain: x>=1

Step-by-step explanation:

what values of x make it work (square roots must be greater than or equal to zero)

sqrt (5x-5) >=0

square each side

5x-5 >=0

add 5 to each side

5x>=5

divide by 5 on each side

5x/5 >=5/5

x >=1

6 0

3 years ago

Find Sin (BAC+30) 80POINTS

Ann [662]

Answer:

$\dfrac{2}{5}\sqrt{3}+\dfrac{3}{10}$

Step-by-step explanation:

Trigonometric Identities

$\sin (A \pm B)=\sin A \cos B \pm \cos A \sin B$

Trigonometric ratios

$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ is the angle
O is the side opposite the angle
A is the side adjacent the angle
H is the hypotenuse (the side opposite the right angle)

Using the trig ratio formulas for cosine and sine:

$\cos (\angle BAC)=\dfrac{12}{20}$

$\sin (\angle BAC)=\dfrac{16}{20}$

Angles

$\sin (30^{\circ})=\dfrac{1}{2}$

$\cos (30^{\circ})=\dfrac{\sqrt{3}}{2}$

Therefore, using the trig identities and ratios:

$\begin{aligned}\sin (\angle BAC + 30^{\circ}) & = \sin (\angle BAC) \cos (30^{\circ})+\cos (\angle BAC) \sin (30^{\circ})\\\\& = \dfrac{16}{20} \cdot \dfrac{\sqrt{3}}{2} + \dfrac{12}{20} \cdot \dfrac{1}{2}\\\\& = \dfrac{16}{40}\sqrt{3}+\dfrac{12}{40}\\\\& = \dfrac{2}{5}\sqrt{3}+\dfrac{3}{10}\end{aligned}$

3 0

1 year ago

Read 2 more answers

Hurry ASAP!!!!! I only need help with number 6 please explain how you get the answer to! The instructions for his equation is: s

SVETLANKA909090 [29]

Answer:

-ax + 6by + 10

Step-by-step explanation:

(2ax + 3by + 5) - (3ax - 3by - 5)

Subtrahend is the value AFTER the subtraction sign. So in this example the subtrahends enclosed in the 2nd bracket are 3by and 5.

So subtracting by changing the signs of the subtrahends:

= 2ax + 3by + 5 - 3ax + 3by + 5

Collecting like terms:

= 2ax - 3ax + 3by + 3by + 5 + 5

Combining like terms:

= -ax + 6by + 10

5 0

2 years ago

During training, Janice kayaker 4. 68 miles on Monday and 5. 61 on Tuesday. How much further did kayak on Tuesday?

Wewaii [24]

Janice kayaked 0.93 of a mile further on Tuesday

4 0

3 years ago

Read 2 more answers

Arnold records the number of chirps per minute (x) that crickets make

Sauron [17]

Answer:

X=0 the temperatures is 40

Step-by-step explanation:

y=1/4x +40

x=0

y=1/4*0+40

y=0+40

y=40

7 0

3 years ago