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4 years ago

HELP! Quadrilateral ABCD is inscribed in the circle below.

Mathematics

2 answers:

hjlf4 years ago

6 0

I don’t understand what you mean by the quadrilateral ABCD is inscribed in the circle below

myrzilka [38]4 years ago

3 0

Answer:

Step-by-step explanation:

If a quadrilateral is inscribed in a circle with all four edges touching the circumference of the circle, then the opposite angles are supplementary. This means that the sum of the opposite angles is 180 degrees. Therefore,

Angle B + angle D = 180

Angle A + angle C = 180

3x + x + 20 = 180

4x = 180 - 20 = 160

x = 160/4

x = 40

Angle A = 2 × 40 + 78 = 158 degrees

Angle B = 3 × 40 = 120 degrees

Angle C = 180 - 158 = 22 degrees

Angle D = 40 + 20 = 60 degrees

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Make a linear equation with the slope=1 and y intercept=15000

tangare [24]

Well, plug those numbers into y=mx+b. M(slope)=1 and B(y-intercept)=15000
Using this information, your equation would be y=1x+15000.

Hope this answer help you!

6 0

4 years ago

What is the solution to this equation x+ 3 2/3= 26

jenyasd209 [6]

Answer:

Exact form : x = 67/3

Decimal form : x = 22.33333333333...

Mixed Number form : x = 22 1/3

Step-by-step explanation: Solve for x by simplifying both sides of the equation, then isolating the variable.

I hope this helps you out. :)

5 0

3 years ago

Age (years) Population Under 15 2600 15 - 64 16000 Over 64 4000 Calculate the child dependency ratio from the chart above. Round

Brums [2.3K]

Answer:

16.25%

=0.163 (correct to 3 decimal places)

Step-by-step explanation:

The child dependency ratio of a population is defined as the number of children (Under 15 years) divided by the working-age population (15–64 years old).

$\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{{\mathrm{ Population}\,\left( \text{Under 15} \right)}}{{\mathrm{ Population}\,\left( {15-64} \right)}}\times 100$

From the given table:

Population Under 15 years = 2600

Population of the working class (between 15-64) = 16000

Therefore:

$\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{2600}{16000}\times 100\\\\=16.25\%$

=0.163 (correct to 3 decimal places)

3 0

3 years ago

Andrew has a moneybox in which he saves all of his R5,R2 and R1 coins.The coins are in the ratio 2:5:7 respectively.If he has a

Pepsi [2]

Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

The coins are in the ratio 2:5:7 respectively. If he has a R90 in R2 coins. If x represent the total coins, hence:

(5/14) * x = 90

x = 252

Number of R5 coins = (2/14) * 252 = 36

Number of R1 coins = (7/14) * 252 = 126

Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins,

find out more on equation at: brainly.com/question/2972832

4 0

2 years ago

F(x)=x^3-2x+6 g(x)=2x^3+3x^2-4x+2 Find (f-g)(x).

____ [38]

(f-g)(x) = f(x) - g(x)
= (x^3 -2x+6) - (2x^3+3x^2-4x+2)
= x^3 -2x +6 -2x^3 -3x^2 +4x -2 . . . . distribute the negative sign
= (1-2)x^3 -3x^2 +(-2+4)x +(6-2) . . . . . combine like terms

(f-g)(x) = -x^3 -3x^2 +2x +4

7 0

3 years ago