What is sin 45°? O A. 1/2 12 1 OB. NI O C. 1 O D. O E. 1 3 O F. 13 ap.ex​

What Is Sin 45? O A. 1/2 12 1 OB. NI O C. 1 O D. O E. 1 3 O F. 13 Ap.ex

Answers

Answer 1

1/√2

Step-by-step explanation:

Imagine a right-angled triangle, for e.g. Triangle ABC,

Where

B = 90°

Remember your Toa Cah Soh.

sin 45° = opposite / hypotenuse

If theta = 45°

Angles A and C = 45° (Sum of angles in a triangle equal = 180°)

Since theta are the same, we can also deduce that the length AB and BC are the same.

Take for example AB = BC = 1 = opposite

By the Pythagorean theorem,

AB² + BC² = AC²

1² + 1² = AC²

2 = AC²

AC = √2 = hypotenuse

Therefore:

sin 45° = opposite / hypotenuse

sin 45° = 1/√2


Related Questions

Acellus
Find the missing side of this right
triangle.
x
7
14
x= [?]
Enter the number that belongs in the green box.
Enter

Answers

Answer:

2 is the correct answer because 14 ÷7 is 2

Answer:

the answer in your question is √245

15.6524 ≈ 15.7

Step-by-step explanation:

[tex]x = \sqrt{{14}^{2} + {7}^{2} } \: = 15.6524 = 15.7[/tex]

A solid metallic sphere of radius 7 cm is cut into two halves. Find the total surface area of the two hemisphere
formed.​

Answers

Here,
A sphere has 7cm radius
And it’s cut into tow half (2 hemispheres)
So, the radius of a hemisphere is also 7cm
Now,
TSA of hemisphere = 3 pie r^2
=3*22/7*7^2
=3*22/7*49
=3234/7
=462cm^2
Lastly,
The TSA of 2 hemispheres = 2* 462
=924cm^2

Hence,
The total surface area of the 2 hemisphere is 924cm^2

What is the midpoint between( -4,-5 )and( 6,2)

Answers

Answer:

(1, -1.5)

Step-by-step explanation:

To find the x coordinate of the midpoint, add the x values and divide by 2

(-4+6)/2 = 2/2 = 1

To find the y coordinate of the midpoint, add the y values and divide by 2

(-5+2)/2 = -3/2 = -1.5

A rhombus has the same properties as a square. True False

Answers

Answer: True

Step-by-step explanation: am i wrong

Answer:

false

Step-by-step explanation:

in a rhombus all interior angles are not equal even though they have equal sides.while in a square all sides are equal including interior angles. so no a rhombus does not have the same properties

Help me please i need it

Answers

Answer:156 meters

Step-by-step explanation:

This is the question of 7 class opt math book. Write right answer.​

Answers

Answer:

Step-by-step explanation:

x + 50 + 90 = 180

x + 140 = 180

x = 40 degrees

Math,math,math,math,math,math

Answers

Answer and Step-by-step explanation:

To find the length of the missing leg, use the Pythagorean Theorem.

[tex]a^2+b^2=c^2[/tex]

[tex]15^2 + a^2 = 17^2\\\\\\a^2 = 64\\\\a = 8[/tex]

This missing leg length is 8 feet.

#teamtrees #PAW (Plant And Water)

Answer: a=8

Step-by-step explanation: just because lol

What is true about -9.94 and -9.8 when
plotted on a number line?

Answers

Answer: A number line is defined as the pictorial representation of numbers such as fractions, integers, and whole numbers laid out evenly on a straight horizontal line. Positive numbers are plotted to the right of the origin while negative numbers are plotted to the left of the origin.

Step-by-step explanation:

Hello there! Please answer this question for me please. Brainliest and 35 points!

What is the area of figure ABCD?

A
104 square inches

B
120 square inches

C
136 square inches

D
168 square inches

Answers

Answer:

That's a Trapezium

Area =½( A + B)x H

A and B are the top and bottom of the shape.

H is the height.

Substituting...

Area = ½(13+17)8

=120 Square Inches

Answer:

B. 120 in.²

Step-by-step explanation:

13 × 8 = 104 in.²

17 - 13 = 4

4 × 8 = 32

32 ÷ 2 = 16

16 in.² + 104 in.²

120 in.²

The local muffler replacement shop charges $75 for parts and $25 per hour for labor. Write a expresstion with parentheses to describe the cost, in dollars, of a replacement if the job takes 4 hours.​

Answers

Answer:

Step-by-step explanation:

75+ 25x

75+25(4)

75+100

175

can somebody help me pleeaaassseee? 5 star rate

Answers

Answer:

x < 3/14

Step-by-step explanation:

-14x > -3

divide each side by -14

however, whenever multiplying or dividing an inequality by a negative value then you must reverse the inequality symbol

x < 3/14

Answer:

divide by -14:

[tex]x<3/14[/tex]

when you divide by a negative the sign flips

WILL GIVE BRAINLIEST AND THANKS. find the value of x

Answers

Answer:

x = 48

Step-by-step explanation:

To solve this problem, one must assume that the segment with a length of (7) bisects the segment with a length of (x).

It is given that the segment with a length of (7) is perpendicular (forms a right angle with) the segment that has a length of (x). This is indicated by the box around one of the angles, signifiying that it is a right angle, or (90) degree angle. Therefore, the triangle with sides measuring (25) and (7) is a right triangle. Thus, one can use the Pythagorean theorem to solve for the base length. Then multiply it by (2) to find the total length of (x).

The Pythagorean theorem states the following:

[tex]a^2+b^2=c^2[/tex]

Where (a) and (b) are the legs, or sides adjacent to the right angle, and (c) is the hypotenuse or side opposite the right angle.

[tex]a^2+(7)^2=(25)^2[/tex]

Simplify,

[tex]a^2+49=625[/tex]

Inverse operations,

[tex]a^2=576\\\\a=24[/tex]

Multiply this value by (2) to find the total side length of the segment (x),

2(a)

Substitute,

2(24)

Simplify,

48

Madeleine owes $36,000 to a private lender. The debt grows with 12% annual interest that compounds every week. How much will Madeleine owe in one year?

Answers

Answer:

A= $40584.28      

Step-by-step explanation:

P = 36000

r = 12% = 0.12

n = 52 weeks

t = 1

[tex]A = P(1 + \frac{r}{n})^{nt}\\[/tex]

   [tex]=36000(1 + \frac{0.12}{52})^{52 \times 1}\\\\=36000 (1.002307)^{52}\\\\=36000 \times 1.12734\\\\=40584.28[/tex]

help me please [giving brainliest to best answer with step by step]

Answers

Hi there!

[tex]\large\boxed{3\text{ } \frac{3}{4} cm^3}[/tex]

Knowing that one cube has side-lengths of 1/2, we can calculate the dimensions for the prism:

Length: 1/2 × 5 = 2.5 cm

Height: 1/2 × 3 = 1.5 cm

Width: 1/2 × 2 = 1 cm

Use this formula to solve for the volume:

V = l × w × h

Thus:

V = 2.5 × 1.5 × 1 = 3.75 cm³

Convert to fraction:

75/100 = 3/4

Thus, the volume in mixed-numbers is 3 3/4 cm³.

Rotate triangle P 90° clockwise about the point (2, -1).

Please screenshot this and send me the answers cuz I really need help :(​

Answers

Answer: (2,0), (2,1), and (6,1)

Step-by-step explanation: I just used the desmos graphing calculator to find the answer to your problem. I don't know any formulas to solve it so I just rotated the points by hand. I also made sure they were still equidistant from the point (2,-1) because if their distances from other points changed during the rotation, then the triangle would not be equal to the first triangle and the image would've been distorted.

I hope this helps! Have a nice day.

C) {(0, 1), (2.1), (0.3) Function? Explain:
Is this a function or not​

Answers

Not a function a function does not have repeating numbers

Condense the logarithm
g log a + 2 log b

Answers

Hahahahahah I might know the answer but this will make you laugh

Simplify 5a + 5b - 6a + 8b​

Answers

Answer:

-1a + 13b

Step-by-step explanation:

combine like terms and just be sure to change signs as needed

Step-by-step explanation:

-a+13b

colect like terms and solve

6. What is the value of x?
A. 10
B. 8
C. 4
D. 6

Answers

Answer:

(4)2=x-2

8=x-2

x=8+2

x=10

HELPP TIMED WILL GIVE BRAINLIEst round to nearest hundredth

Answers

268.08 cm^3
V(sphere)=4/3(pie or 3.14)r^2
R=radius(half of diameter)
V=4/3(3.14)(4^2)
V=268.08
*double check

A $5.50
baseball hat is
marked up
150%. What is
the new price
of the hata

Answers

Answer:

13.75

Step-by-step explanation:

Please help ASAP with geometry! Will give brainliest

Answers

Answer:

360

Step-by-step explanation:

All circles can be divided into 360 units called degrees. Since there is 270 already we subtract 270 from 360.

360 - 270 = 90

90 + 150 + 120 = 360

Help urgent
I need this done quick

Answers

Answer:

It is supplementary.

Step-by-step explanation:

Supplementary angles are angles that have two angles adding up to 180°. You can tell by just finding the straight line that equals 180° then seeing a line that separates the whole measurement into two angles, but together making a 180° angle still. Hope this helps! :D

Meanings of the other Options:

Alternate Interior Angles - Angles formed when two parallel or non-parallel lines are intersected by a transversal. The angles are positioned at the inner corners of the intersections and lie on opposite sides of the transversal.

Corresponding Angles - Angles that are in the same relative position at an intersection of a transversal and at least two lines. If the two lines are parallel, then the corresponding angles are congruent.

Alternate Exterior Angles - Angles are the pair of angles that lie on the outer side of the two parallel lines but on either side of the transversal line. Exterior angles lie on opposite sides of the transversal but outside the two parallel lines.

Parallel Lines - Two lines that never intersect. Like an equal sign for example (=).

Transversal - A line the cuts through a parallel line. Like a non-equal sign for example (≠).

A rectangle has an area of 8xand a length of 4x. Find the width of the rectangle.

Answers

Answer:

width=2

Step-by-step explanation:

area = 8x

length = 4x

thus,

width=8x÷4x=2

If 8x−7y=−8 is a true equation, what would be the value of -8+8x−7y? I need help badly

Answers

35 because it right

edsedsedsedsedseds HELP PLZ FAST

Answers

Answer:

12x + 300 = 450

Step-by-step explanation:

Overtime payment = $12/hWeekly income = $300Overtime hours = x

Equation:

12x + 300 = 450

This Question: 1 pt
A triangle has a perimeter of 9x² + 7x - 2.
One side of the triangle measures 6x + 7. Another side of the triangle measures 8x?.
What is the measure of the third side of the triangle?

Answers

Answer:

9x² - 7x - 9

Step-by-step explanation:

Two sides

(6x + 7) + 8x = 14x + 7

total perimeter - two sides = Third side

9x² + 7x - 2

-      (14x + 7)

––––––––––

9x² - 7x - 9

Can someone please answer this m

Answers

Answer:

5^-4

1 / 5^4

Step-by-step explanation:

5^3  / 5^7

We know a^b  / a^c  = a^(b-c)

5^(3-7)

5^-4

If you are not allowed to have negative exponents

We know a^-b = 1/a^b

1 / 5^4

What value do you square to get 9?

Answers

Answer:

3 or -3

Step-by-step explanation:

What number multiplied by itself will give you 9

1*1 =1

2*2 =4

3*3 =9

Also note that negative times negative will be positive so

-1*-1=1

That means -3*-3 = 9

Answer:

3^2 0r (-3)^2

Step-by-step explanation:

let the number be x

x^2=9

x=[tex]\sqrt{9[/tex]

x=[tex]\sqrt{3*3[/tex]

x=3

there fore x=plus or minus 3.since it is a sqauring a number if u square (-3)^2 along will the number sign also gets multiplied and (-*-)=+ so u we get positive number.

therefore if u square 3 then u will get 9

f(x) = 3x - 1 and g(x) = x + 2, find (f+9)(x).

Answers

Answer:

what is this it looks so hard I don't have the answer

Answer:

(f + g)(x) = 4x + 1

Step-by-step explanation:

f(x) = 3x - 1

g(x) = x + 2

(f + g)(x) = f(x ) + g(x)

            = 3x - 1 + x + 2

            = 4x + 1    

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