prove that...

sin A = Cos (90°- A)​

Answers

Answer 1

Step-by-step explanation:

assuming A=90 degree and B =A

cos90=0 and sin90=1

Prove That...sin A = Cos (90- A)

Related Questions

The base and corresponding height of a parallelogram are 75 cm and 25 cm. If the other base is 50 cm, find out its corresponding height.

Answers

Answer:

Height of the parallelogram = 37.5 cm

Step-by-step explanation:

As given,

Base of a parallelogram = 75 cm

Height of a parallelogram = 25 cm

As,

we know that

Area = Base × Height

        = 75 × 25

        = 1875 cm²

As the parallelogram is same

So, Area = Base × Height

1875 = 50 × Height

⇒ Height = [tex]\frac{1875}{50}[/tex] = 37.5 cm

So, we get

Height of the parallelogram = 37.5 cm

Karen is making 14 different kinds of greeting cards. She is making 12 of each kind. How many greeting is she making.

Answers

1?......................

For every pound a company spends on advertising, it spends £0.45 on its website. Express the amount spent on advertising to the amount spent on its website as a ratio in its simplest form.

Answers

equals 1 dollar usdddddf 877

20 = x/4 - 13 help plz thank you

Answers

Answer: x = 132 daw

Step-by-step explanation: believe me

okay so this is what i got very basic yup

ILL GIVE BRAINLIEST FOR FIRST ANSWER HELP


What is the volume of this rectangular prism?

Answers

Answer:

The answer is 56 cm^3

Step-by-step explanation:

2 = height

7 = length

4 = width

Formula: LxWxH

2 x 7  x 4 = 56

Which is the simplified form of the expression below? 6w + 23 + 3w A. 3w+23 B. 6w+3w C. 6w+23 D. 9w+23

Answers

Answer:

D, 9w + 23

Step-by-step explanation:

Add like terms.


Write an equation of a line perpendicular to x = -7 and passes through the
point (4,9).

Answers

Answer:

y = 9

Step-by-step explanation:

The line x = -7 is a vertical line, so the perpendicular line will be horizontal.

Horizontal lines have a slope of 0.

Using this slope and the point given, plug them into y = mx + b to solve for b and create the equation

y = mx + b

9 = 0(4) + b

9 = b

Plug this and the slope into the equation:

y = mx + b

y = 0x + b

y = 9

So, y = 9 is the equation

aswdthjkl;hgfsdawdfhuh

Answers

Answer:

ong

Step-by-step explanation:

dude can you not spam???

the cost of contructing a 63mcube wall is rs 84000. find the volume of each brick if the cost of a bric is rs 13

Answers

Answer:

0.00975 m^3 each

Step-by-step explanation:

rs 84000 / rs 13 = 6461.539 bricks

63 m^3 / 6461.539 = 0.00975 m^3 each

urgent urgent urgent plz

Answers

sorry for messy handwriting

What is the answer I have no clue

Answers

It’s C. Just look at the y-intercepts and it will be fine.

HELP meeeeeeeeeeeeeeeeeeeee

Answers

Answer:

first:

a)

second:

b)

Step-by-step explanation:

A andddddddddd b......

que es una expresión algebraica​

Answers

Answer:

En matemáticas, una expresión algebraica es una expresión construida a partir de constantes enteras, variables y operaciones algebraicas (suma, resta, multiplicación, división y exponenciación por un exponente que es un número racional).

Step-by-step explanation:

Enter the value of 12x-2 when x = 3.

Answers

Answer:

34

Step-by-step explanation:

12(3)-2

36-2

34

Answer:

im sorry if this is wrong but i think its 2

Lucy spent a total of $6.60 on 5 apples and a package of grapes. If the package of grapes cost $2.35, how much did each apple cost? Do not put a $ in your answer.

Each apple costs $

Answers

3 plus tax

Step-by-step explanation:

Find The Area of the parallelogram...Explain.

Answers

Answer:

70

Step-by-step explanation:

Recall that, in order to find the area of a parallelogram is to multiply height by base, and the height is 14, and the base is 5, so 14 x 5 = 70.

What is the surface area?
5 mm
4 mm
5 mm
6 mm
7 mm
square millimeters

Answers

Answer:

Base of 5mm, Height of 6mm, Width of 7mm214mm^2

Base of 4mm, Height of 4mm, Width of 10mm192mm^2

Base of 5mm, Height of 6mm, Width of 7mm214mm^2

Base of 6mm, Height of 3mm, Width of 2mm72mm^2

7mmLittle over 1/4 Inch0.27559 Inches

The total surface area is 124 square millimeters.

What the surface area of a rotating prism?

To find the surface area of any kind of prism we use the general formula. The total surface area of a prism is the sum of lateral surface area and area of two flat bases.

The total surface area of a Prism = (2 × Base Area) + (Base perimeter × Length).

Here, area of base is Area=2(Base×Height)

= 2(6×4)

= 12 square millimeters

Now, Base perimeter × Length= (5+5+6)×7

= 16×7

= 112 square millimeters

Total area = 12+112

= 124 square millimeters

Therefore, the total surface area is 124 square millimeters.

To learn more about the surface area of a prism visit:

https://brainly.com/question/28016184.

#SPJ2

What is this number in standard form?
(5×100)+(6×1/10)+(7×1/100)

Enter your answer in the box. (1/10 and 1/100 are fractions)

Answers

Answer:

500.61

Step-by-step explanation:

5 multiplied by 100 = 500

1/10 = 0.1, So 6 multiplied by 0.1 = 0.6

1/100 = 0.01, So 1 multiplied by 1 = 0.01

500 + 0.6 + 0.01 = 500.61

[tex](5 \times 100) + (6 \times \frac{1}{10} ) + (7 \times \frac{1}{100} )[/tex]

[tex]5 \times 100 = 500[/tex]

[tex] \frac{6}{1} \times \frac{1}{10} = \frac{6}{10} = 0.60[/tex]

[tex] \frac{7}{1} \times \frac{1}{100} = \frac{7}{100} = 0.07[/tex]

[tex]500 + 0.60 + 0.07 = 500.67[/tex]

13. Town officials are putting a pathway around a pool as shown below.
(4x+3)
pool
(2x-5) ft
deck
a) Determine the perimeter of the pool in terms of x. Write your answer in simple form and
include units. Show or explain your work.
b) Determine the area of the pool in terms of x. Write your answers as a trinomial and include
units. Show or explain your work.

Answers

Answer:

ghcfgnxfgxgfmvjbnjghjbnmxfhcgxfgcxgchmvjm

Step-by-step explanation:

good day

what is the measurement of angle x

the angle on the right measures 54 degrees and the left measures 38 degrees

Answers

Answer:

16

Step-by-step explanation:

180 is a straight line.

x is among that line so you must subtract the angles you know from 180.

180-54-38= 16

I NEED HELP ASAP PLEASE​

Answers

Answer:

1679616

Step-by-step explanation:

6*6

36*36*36*36

Answer:

[tex]6^{8}[/tex]

Step-by-step explanation:

[tex](6^{2})^{4} = 6^{2*4} = 6^{8}[/tex]

g(n) = 4n h(n) = n2 + 3n Find g(h(n))

Answers

Answer:

g(h(n)) = 4n² + 12n

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Distributive Property

Algebra I

Terms/CoefficientsFunction Notation

Algebra II

Composite Functions

Step-by-step explanation:

Step 1: Define

g(n) = 4n

h(n) = n² + 3n

g(h(n)) is n = h(n)

Step 2: Find

Substitute in function h(n) as n:                                                                       g(h(n)) = 4(n²+ 3n)[Distributive Property] Distribute 4:                                                               g(h(n)) = 4n² + 12n

How many square feet of outdoor carpet will we need

Answers

8 square feet will be needed. 3x2= 6 + 2x1= 2= 8 square feet

Kayla earns 5% commission on
all jewelry sales. How much
would she earn if she sold $725
worth of jewelry?

Answers

Answer:

725 x0.05=36.25

Step-by-step explanation:

when finding percentage move the decimal over two places, making 5 0.05

someone please help ​

Answers

Answer:

x = 4√3, or approximately 6.93

Step-by-step explanation:

This is a right triangle with hypotenuse 13 and side lengths x and 11.  According to the Pythagorean Theorem, x^2 + 11^2 = 13^2 = 169, or

x^2 + 121 = 169, or

x^2 = 48.

x must be a positive quantity.  Thus, x = +√48 = + √3·√16 = +4√3

Thus, x = 4√3, or approximately 6.93

5y=2x+5 Y=-x +6
( x, y)

Answers

Answer:

Step-by-step explanation:

6/5 + 2x/5= y

3+ 5y/2 = x

HELP WILL GIVE BRAINLY!

Answers

Answer:

The second one

Step-by-step explanation:

on the f axis you can see that f is greater than or equal to 1 and less than or equal to 5.

if hector completed 120 questions last week and 144 this week, how much did he increase by?

Answers

Answer:

he increased by 24

Step-by-step explanation:

144-120

Help please!!!!!!!!!!!!!!!!!! marking brainliest for correct answer!!!!!!!!!!!

Answers

Step-by-step explanation:

angle 2 = 49

angle 1 = 131

angle 3 = 112

plz mark my answer as brainlist.hope this will be helpful to you ☺️.

Which inequality has a closed circle when it is graphed on a number line?
x greater-than 0.4
x greater-than negative 3
x less-than 4
x greater-than-or-equal-to 3

Answers

Answer:

Less than 4 I guess??

This part I have scribbled so I can answer

no x Ehud ihehiexbhhenxkjwbhxnwbxhuebxbuebxh

Answer:

D

Step-by-step explanation:

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