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mariarad [96]
3 years ago
9

PLS HELP Use a trigonometric ratio to find the value of x.

Mathematics
1 answer:
timama [110]3 years ago
3 0
Hi! im pretty sure it’s 81
not 100% but please mark brainliest if correct
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These marbles are placed in a bag and two
Charra [1.4K]
<h3>Heyy there!</h3>

<h2>Look below ↴</h2>

\boxed{Probability =  \frac{Favourable \: outcome}{Total \: outcome} }

  • Favourable outcome = 2
  • Total outcome = 10

\frac{2}{10}

\cancel\frac{2}{10}  =  \frac{1}{5}

So, Now there is also a second draw. And to get the probability of that second draw, Multiply the fraction we reduced just now with the original fraction I.e. ↴

\large\frac{1}{5}  \times  \frac{2}{10}

\sf =  \frac{1}{25}  \: or \: 25

  • Therefore, The probability of drawing a yellow marble is 1:25
4 0
3 years ago
Please helpASAP! Approximately 30% of the land on
timurjin [86]

< 30% or <0.3

less than 30

5 0
3 years ago
Tell which set or sets the number below belongs​ to: natural​ numbers, whole​ numbers, integers, rational​ numbers, irrational​
Alexus [3.1K]

Answer:

<h3>Rational numbers</h3>

Step-by-step explanation:

A rational number is a number that can be written as a ratio of two integers. The are expressed as fractions. Given the value 8/9, this value is a fraction and is written as a ratio of two integers 8 and 9.

The value is neither a real number, nor an integer because integers and whole numbers are not expressed as fractions.

Natural numbers are also whole numbers starting from 1 and above. Hence 8/9 is not a natural number as well.

Note that irrational numbers are also classified as real numbers and they can not be written as a ratio of two integers.

Conclusively, 8/9 is only classified as a rational number

6 0
3 years ago
The area of a rectangle is 45 cm2. Two squares are constructed such that two adjacent sides of the rectangle are each also the s
Zielflug [23.3K]

Answer:

The lengths of sides of squares are 5 cm and 9 cm.

Step-by-step explanation:

Let the sides of rectangle be x and y .

Area of rectangle = Length × Breadth

Given : Area of rectangle = 45 cm².

⇒ x × y  = 45  

⇒ x=\frac{45}{y}  ........(1)

Two squares are constructed such that two adjacent sides of the rectangle

so squares have side x and y .

Area of square = side × side

Area of square with side x = x²

Area of square with side y = y²

Also, The combined area of the two squares is 106 cm².

⇒ x² + y² = 106

From (1) put value of x , we get,

(\frac{45}{y})^2+y^2=106

Solving for y ,

(\frac{45}{y})^2+y^2=106  

2025+y^4=106y^2  

y^4-106y^2+2025=0  

y^4-81y^2-25y^2+2025=0  

y^2(y^2-81)-25(y^2-81)=0  

(y^2-25)(y^2-81)=0

y^2-81=0 or y^2-25=0    

on solving we get y = 5 and y = 9

Also, x can be find by putting in (1),

⇒ x=\frac{45}{5}=9 and ⇒ x=\frac{45}{9}=5  

⇒ x = 9 and x = 5

Thus, lengths of sides of squares are 5 cm and 9 cm.

6 0
4 years ago
Read 2 more answers
Help me find the area of the question c please
Marysya12 [62]

Answer:

16

Step-by-step explanation:

Shape C is A trapezoid

Area of trapezoid = \frac{a+b}{2} h

where a and b =  base lengths and h = height

The trapezoid has the following dimensions

base 1 = 3 units

base 2 = 5 units

height = 4 units

Using these dimensions we plug in the values into the formula stated above.

A=\frac{3+5}{2} 4\\3+5=8\\\frac{8}{2} =4\\4*4=16

Hence the area of shape C = 16 square units

3 0
3 years ago
Read 2 more answers
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