The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answer:

Step-by-step explanation:

according to the question

3x-20+4x+11=180

=>7x-9=180

=>7x=180+9

=>7x=189

=>7x/7=189/7

therefore

Answer:

r

Step-by-step explanation:

sin is o/h so across from 12 would be the angle r

Answer is Option-D => ∠R

Sinθ Formula:

The sine of an angle of a right-angled triangle is the ratio of its perpendicular (that is opposite to the angle) to the hypotenuse. The sin formula is given as: sinθ = Perpendicular / Hypotenuse

Here, (Given)

Perpendicular = 12

Hypotenuse = 37

So, For sinR, we get 12/37 value as the opposite side of an angle ∠R is 12.

Answer is ∠R.

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Answer:

Step-by-step explanation:

BC = 20sin(61°) ≅17.5

AC = 20cos(61°) ≅ 9.7

perimeter = 20+17.5+9.7 = 47.2

Answer: 9.6

Step-by-step explanation:

You need to isolate the m and in order to do that then you have to multiply both sides by 2

So m/2 x 2 = m

4.8 x 2 = 9.6 which is the answer

Answer:

Step-by-step explanation:

m/2 = 4.8

m = 4.8×2

m = 9.6

Answer:

The answer is 3,600,000,000

Step-by-step explanation:

Simply multiply 9,000,000 * 400 which equals 3,600,000,000.

Answer:

E I think

..........hope this helps

Answer:

29/12

Step-by-step explanation:

3 3/4=15/4

1 1/3=4/3

----------------

15/4-4/3=45/12-16/12=29/12

Answer:

3×2×1

Step-by-step explanation:

that is the answer

Answer:

see explanation

Step-by-step explanation:

The definition of factorial ! is

n! = n(n - 1)(n - 2) ...... × 3 × 2 × 1 , then

3! = 3 × 2 × 1

= 6

The main one is the Pythagorean identity,

sin²(x) + cos²(x) = 1

By dividing both sides by cos²(x), you get the tan-sec variant:

sin²(x)/cos²(x) + cos²(x)/cos²(x) = 1/cos²(x)

tan²(x) + 1 = sec²(x)

since tan(x) = sin(x)/cos(x) and sec(x) = 1/cos(x).

So the given expression reduces to

(sin²(x) + tan²(x) + cos²(x)) / sec²(x)

= (1 + tan²(x)) / sec²(x)

= sec²(x) / sec²(x)

= 1

Answer:

C

Step-by-step explanation:

Use the slope formula:

m = (y2 - y1) / (x2 - x1)

m = (-3 - 2) / (5 - 3)

m = -5/2

For adding variables we use the coefficient as 1 if there is no number infront of variable.

An expression is combination of variables, numbers and operators.

A coefficient is a multiplicative factor in some term of a polynomial, a series, or an expression; it is usually a number, but may be any expression.

Let us consider a algebraic expression

ax+by+z=0

In the given expression a, b are coefficients of x and y respectively.

We use coefficient as one when there is no number before a variable because when we add variables there should be some number before varibales. So we consider 1 as coefficient for those variables which does not have any coefficient.

Hence, for adding variables we use the coefficient as 1 if there is no number infront of variable.

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Answer:

2

Step-by-step explanation:

3w=6

w=6÷3

w=2

Vertical compression

Answer:

Step-by-step explanation:

20.25

hope it helps

Answer:

8a[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Given

5a[tex]\sqrt{2}[/tex] + 3a[tex]\sqrt{2}[/tex] ← factor out [tex]\sqrt{2}[/tex] from each term

= [tex]\sqrt{2}[/tex] (5a + 3a)

= 8a[tex]\sqrt{2}[/tex]

Answer:

544 are men 181 are women

Step-by-step explanation:

725/4 =181x3

Answer:

x = 3

Step-by-step explanation:

So you will distribute the number beside the ( )

so the equation be looking like :

18x - 8x = 10x + 5 - 2

now combine like terms

18x - 8x = 10x

5 - 2 = 3

10x = 10x +3

now subtract 10x to the other side they cross off

leaving x = 3

and so that's your answer

hope this helps

Answer:

this question is wrong i think

Answer:

Step-by-step explanation:

Answer:

y>18

Step-by-step explanation:

Move all terms not containing y to the right sideof the inequality.

Inequality Form:

y>18

Answer:

MARK HIM BRAINLIEST

Step-by-step explanation:

Step-by-step explanation:

1)

180-68-41= 71°

2)

180-47-16=117

5)

m<1= 180-68-77= 35°

m<2= 77°

m<3 = 180-90-41= 49°

m<4 = 180-41-62= 77°

m<5= 90-28= 62°

m<6= 180-49-103= 28°

Answer:

.92

Step-by-step explanation:

multiplication

Answer:

yes

Step-by-step explanation:

Yes this triangle is right angled and can be justified using the Pythagorean theorem. The theorem states that: [tex]a^{2} +b^{2} = c^{2}[/tex]. Substitute using the given values:

(9^2)+(12^2)=15^2

81 + 144 = 255

255 = 255.

It satisfies the theorem therefore it is a right angle triangle.

Answer:

Step-by-step explanation:

6. Cross-section is a square.

:::::

7. Point and rectangle

:::::

8. line segment and rectangle

:::::

area of hole = π3.5² = 12.25π ≅ 39 ft²

Answer:

its 10

Step-by-step explanation:

area of rectangle =length×width.

so,

90=9×b

90/9=b

b=10.

X = 30. Plug thirty into the equation to get -11 = -30 + k. Add 30 to both sides to get 19 = k.

K = 19

Answer is in the photo. I can only upload it to a file hosting service. link below!

tinyurl.com/wpazsebu

Answer:

Try photo math, it will explain it all to you

Answer: 30 kg/m³

Step-by-step explanation: density = mass / volume

Density is 240 kg / 8 m³