please help
The Pythagorean Identity states that:
(sin x)2 + (cos x)2 = 1
Given sin 0 = 2/5, find cos 0.
cos O = ✓21/ [ ? ]
Simplify the fraction.

Answer:

B

Step-by-step explanation:

Answer:

B.    n = 72

Step-by-step explanation:

[tex]\frac{n}{8} = 9[/tex]     Multiply both sides of equation by 8

n = 72

Answer:

how many points

Step-by-step explanation:

Answer:

1) 2400 sq feet

2) $93.75

3) A (first answer)

Step-by-step explanation:

1) replace the 6 inches with 60 feet and 4 inches with 40 feet. We do this bc 1 inch = 10 feet. Then multiply 60 x 40 to get 2400 sq feet

2) we know that 25% off of 100 is 75. Then to add 25% back to 75 we find 25% of 75. 25% of 75 is 18.75. So we add 18.75 + 75 to get $93.75

3)

hope this helps <3

Answer:

The answer is -24, I think!

(+4)+(-7)

4-7

-3

(-3)-(+5)

-3-5

-8

Hope this helps.

Answer:

51

Step-by-step explanation:

3.6=6333.34

Divide that by 125 and you have

50.6 but round up to 51

Answer:

im gonna guess its 30 but not 100% sure

Step-by-step explanation:

Answer:

18.44 ..... hope this helps

Step-by-step explanation:

V=

4

3

π

r

3

Solving forr

r=

3

V

4

π

⅓

=

3

26244

4

π

⅓

≈

18.43517

Answer:

16 is probability

Step-by-step explanation:

The angle m∠CBE between the intersection of the chord and tangent line is equal to 41°

To calculate for the angle between the intersection of a chord and a tangent we need to know the measure of the intercepted arc, and then divide it by 2 to get the angle.

If the measure of the arc CAB is given to be equal to 278°, then the measure of intercepted arc BC is calculated as:

arc BC = 360 - 278

arc BC = 82°

angle CBE = 82°/2

m∠CBE = 41°

Therefore, the angle m∠CBE between the intersection of the chord and tangent line is equal to 41°

Read more about chord and tangent here:https://brainly.com/question/4470346

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Answer:

3/32

Step-by-step explanation:

prob greater than 5

that would be 6,7 or 8

p = 3/8

prob purple

p = 1/4

Prob of both

p = 3/8 * 1/4

p = 3/32

Answer:

r is around 14 in

Step-by-step explanation:

615.8* pi*r^2

hope this helps! :)

Answer:

Yes, The pole will fit through the door because the diagonal width of the door is 10.8 feet, which is longer than the length of the pole.

Step-by-step explanation:

Using the Pythagorean Theorem, ([tex]a^2+b^2=c^2[/tex] ) we can measure the hypotenuse of a right triangle. Since the doorway is a rectangle, and a rectangle cut diagonally is a right triangle, we can use Pythagorean Theorem to measure the diagonal width of the doorway.

Plug in the values of the length and width of the door for a and b. The c value will represent the diagonal width of the doorway:

[tex]6^2+9^2=c^2[/tex]

[tex]36+81=c^2[/tex]

[tex]117=c^2[/tex]

Since 117 is equal to the value of c multiplied by c, we must find the square root of 117 to find the value of c.

[tex]\sqrt{117} =10.8[/tex]

[tex]10.8=c[/tex]

Yes, The pole will fit through the door because the diagonal width of the door is 10.8 feet, which is longer than the length of the pole, measuring 10 feet.

Answer:

7hr 12 min

Step-by-step explanation:

Given that

Bob  can type 2 letters in 4 hours

while on the other hand bill can do it in six hours

We need to find out the no of hours in which they type 6 hours

So,

Bob's rate is

= 2 ÷ 4

= 1 ÷ 2 letter per hour

And,  

Bill's rate is

= 2 ÷ 6

= 1 ÷ 3 letter per hour

Now

Together rate is

= 1 ÷ 2 + 1 ÷ 3 = 5 ÷ 6 letter per hour

We know that

rate × hours = production

Let us assume the hours be x

So,  

(5 ÷ 6)x = 6

x = (6 ÷ 5) × 6

x = 36 ÷ 5

= 7 1 ÷ 5

= 7hr 12 min

Answer:

This is false. Lines will be congruent if they have the same length, which is not the case in all situations.

Answer:

Line segments are congruent if they have the same length. However, they need not be parallel. They can be at any angle or orientation on the plane. In the figure above, there are two congruent line segments.

Answer:

3 out of 8

Step-by-step explanation:

Answer:

P(blue) = 3/8

Step-by-step explanation:

it waz correct. trust me

Answer:

It would be 3.

Step-by-step explanation:

So, a reciprocal is basically just flipping over the numerator and the denominator of a fraction. Therefore:

3/9 ---> 9/3

The reciprocal of the fraction number in the simplified form will be 3.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The fraction number is given below.

⇒ 3 / 9

Simplify the fraction number, then we have

⇒ 3 / 9

⇒ 1 / 3

The reciprocal of the fraction number will be given as,

⇒ 1 / (1/3)

⇒ 3

The reciprocal of the fraction number in the simplified form will be 3.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Answer: 60

Step-by-step explanation:

Answer:

it is an octagon; it is not regular

Answer: It would be 170

Step-by-step explanation:

5 x 10 + 5 x 10 + 5 x 10 = 150 but since it is park of the rectangle and not the triangle you don't multiply by 1/2 but the triangle part  4 x 5 you do 4 x 5 x 1/2 with is ten then you do it for the other side 4 x 5 x 1/2 equals ten. So 150 + 10 + 10=170

Answer: 2

Step-by-step explanation:

We don't know what is the Y.

Then, 4 + 2y < 18 is:

6y < 18

If y=2, it'll make this equation true.

6*2 < 18

12 < 18.

So, Y=2

Answer:

Step-by-step explanation:

Answer:

[tex]32\:\mathrm{in}[/tex]

Step-by-step explanation:

The area of a triangle is given by [tex]A=\frac{1}{2}\cdot b\cdot h[/tex].

Substituting given values, we have:

[tex]240=\frac{1}{2}\cdot b\cdot 15,\\480=15b,\\b=\frac{480}{15}=\boxed{32\:\mathrm{in}}[/tex]

Answer:

Base=32 inches

Step-by-step explanation:

Area=240

Height= 15

Area= b*h/2

2A/h=b

2*240/15=b

b=32

Answer:

x = 8

Step-by-step explanation:

8x - 20 = 44

8x - 20 + 20 = 44 + 20

8x = 64

8x ÷ 8 = 64 ÷ 8

x = 8

Answer:

x is 64 .

so the area of triangle b is 1 divide 2 ×64 ×8 which is 512 cm2