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3 years ago

The perimetee are 81cm and the ratio sides are 2:3:4 find the area of triangle

Mathematics

1 answer:

kari74 [83]3 years ago

6 0

Answer: 18,27,36

Step-by-step explanation: We have to add all the ratios to get 9 and then divide 81 by 9 and get 9. The multiple 2, 3 and 4 by 9 getting 18, 27 and 36 respectively.

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Draw the circles which have AB as a radius.

Ann [662]

Answer:

Step-by-step explanation:

A circle is a shape consisting of all points in a plane that are a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant. The distance between any point of the circle and the centre is called the radius.

Let B be the centre of the circle

Let AB =r units be the radius ie., distance between A and B

where AC is the diameter of the circle

8 0

4 years ago

2 1/4 - 1/15

bogdanovich [222]

Answer:

2 11/60

Step-by-step explanation:

15/60 -4/60=11/60

2+11/60=2 11/60

6 0

3 years ago

Read 2 more answers

Find the amount necessary to fund the given with drawls. Quarterly withdrawals of $850 for 9 years with an interest rate of 4.4%

Lostsunrise [7]

Answer:

The principal amount necessary to fund is $573.31

Step-by-step explanation:

Given as :

The quarterly withdrawal amount = A = $850

The time period for withdrawals = t = 9 years

The rate of interest = r = 4.4% compounded quarterly

Let The principal amount necessary to fund = $p

Now, <u>From Compound Interest</u>

Amount = Principal × $(1+\frac{rate}{100\times 4})^{4\times time}$

Or, $850 = p × $(1+\frac{r}{100\times 4})^{4\times t}$

Or, $850 = p × $(1+\frac{4.4}{100\times 4})^{4\times 9}$

Or, $850 = p × $(1.011)^{36}$

Or, $850 = p × 1.4826

∴ p = $\frac{850}{1.4826}$

i.e p = $573.31

So,The principal amount necessary to fund = p = $573.31

Hence, The principal amount necessary to fund is $573.31 Answer

3 0

4 years ago

Please help ASAP!!!!!!!!!! Which expression is equivalent to the following complex fraction? 1 + StartFraction 1 Over y EndFract

sveticcg [70]

Answer:

$(B)\dfrac{y+1}{y-1}$

Step-by-step explanation:

We are to find an equivalent expression for:

$\dfrac{1+\frac{1}{y} }{1-\frac{1}{y}}$

Step 1: Combine the terms in the numerator into one fraction. Do the same for the denominator.

$=\dfrac{\frac{y+1}{y} }{\frac{y-1}{y}}$

Step 2: Write on a straight line and simplify

$=\dfrac{y+1}{y} \div \dfrac{y-1}{y}\\=\dfrac{y+1}{y} \times \dfrac{y}{y-1}\\=\dfrac{y+1}{y-1}$

The correct option is B.

8 0

4 years ago

Read 2 more answers

Jana used 22.5 gallons of water in the shower this amount is 7.5 gallons less than the amount she used for washing clothes right

Lelu [443]

22.5 (shower) = X (variable used in place of the amount of water she uses to wash clothes) - 7.5 (the amount she used in the shower is 7.5 gallons less than she uses for washing clothes)
22.5 = X - 7.5 《 This is the equation.
Solve is by adding 7.5 to both sides to cancel out the negative 7.5 and you get (X = 30). Hope this helps.

4 0

3 years ago

The perimetee are 81cm and the ratio sides are 2:3:4 find the area of triangle​

The perimetee are 81cm and the ratio sides are 2:3:4 find the area of triangle