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3 years ago

Simplify the following: a. 9 sinA +33 cosec A + 10 sin A - 13 cosec A

Mathematics

1 answer:

GREYUIT [131]3 years ago

7 0

Answer:

19 sin + 20 cosec

explanation

9 sin A + 10 sinA + 33 -13 cosecA

19 sin + 20 cosec

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Someone find area and perimeter of this shape! Thanjs

Gemiola [76]

The area would be 132cm^2 (squared)
(9x4)x2+(7+8)x4 =132

The perimeter you just add everything up so it’s 65cm
15+13+4+7+9+4+13

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3 years ago

Read 2 more answers

X = ? y = ? 16 45 degrees

mezya [45]

Let's put more details in the figure to better understand the problem:

Let's first recall the three main trigonometric functions:

$\text{ Sine }\theta\text{ = }\frac{\text{ Opposite Side}}{\text{ Hypotenuse}}$ $\text{ Cosine }\theta\text{ = }\frac{\text{ Adjacent Side}}{\text{ Hypotenuse}}$ $\text{ Tangent }\theta\text{ = }\frac{\text{ Opposite Side}}{\text{ Adjacent Side}}$

For x, we will be using the Cosine Function:

$\text{ Cosine }\theta\text{ = }\frac{\text{ Adjacent Side}}{\text{ Hypotenuse}}$ $Cosine(45^{\circ})\text{ = }\frac{\text{ x}}{\text{ 1}6}$ $(16)Cosine(45^{\circ})\text{ = x}$ $(16)(\frac{1}{\sqrt[]{2}})\text{ = x}$ $\text{ }\frac{16}{\sqrt[]{2}}\text{ x }\frac{\sqrt[]{2}}{\sqrt[]{2}}\text{ = }\frac{16\sqrt[]{2}}{2}$ $\text{ 8}\sqrt[]{2}\text{ = x}$

Therefore, x = 8√2.

For y, we will be using the Sine Function.

$\text{ Sine }\theta\text{ = }\frac{\text{ Opposite Side}}{\text{ Hypotenuse}}$ $\text{ Sine }(45^{\circ})\text{ = }\frac{\text{ y}}{\text{ 1}6}$ $\text{ (16)Sine }(45^{\circ})\text{ = y}$ $\text{ (16)(}\frac{1}{\sqrt[]{2}})\text{ = y}$ $\text{ }\frac{16}{\sqrt[]{2}}\text{ x }\frac{\sqrt[]{2}}{\sqrt[]{2}}\text{ = }\frac{16\sqrt[]{2}}{2}$ $\text{ 8}\sqrt[]{2}\text{ = y}$

Therefore, y = 8√2.

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1 year ago

Determine the intercepts of the line -5x-4y=10

Alexxandr [17]

Answer:

The <em>y </em>-intercept is: (0,−2.5)

The <em>x </em>-intercept is: (−2,0)

Step-by-step explanation:

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3 years ago

Calculate the simple interest earned on an investment of $26,000 at 8% p.a. Over 3 years.

Annette [7]

I=prt
I=26,000×0.08×3
I=6,240

6 0

3 years ago

URGENT!!!!!!

patriot [66]

Answer:426.6

Step-by-step explanation:

.138 x =.088(x - 69.7) + .394(69.7)

.138 x - .088x = 69.7(.394 - .088)

.05x = 21.3282

x = 426.564

This rounds to x = 426.6

<h2><u>Give me brainliest</u></h2>

6 0

2 years ago

Simplify the following: a. 9 sinA +33 cosec A + 10 sin A - 13 cosec A​

Simplify the following: a. 9 sinA +33 cosec A + 10 sin A - 13 cosec A