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1 year ago

10

3y+z=am-4y look for y

1 answer:

LenKa [72]1 year ago

3 0

The value of y is am-z/7

<h3>How to calculate the value of y ?</h3>

The expression is given as follows

3y +z= am-4y

The first step is to collect the like terms in both sides, this way the numbers that both have y as their coefficient will be on the same side

3y + 4y= am-z

y(3+4)= am -z

7y= am-z

Divide both sides by the coefficient of y which is 7

7y/7= am-z/7

y= am-z/7

Hence the value of y in the expression is am-z/7

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If P is the orthocenter of △ABC, AB = 13, BF = 9,and FC = 5.6, find each measure & the perimeter of triangle ABC.

harina [27]

Answer:

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Step-by-step explanation:

Given

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$F\ C = 5.6$

Required

Calculate the perimeter of A B C

To calculate the perimeter of A B C, we sum up the sides of the triangle

i.e.

$Perimeter = A B + B\ C + A\ C$

AB is given in the question already.

So, we need to calculate B F and F C

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Using Pythagoras Theorem, we have:

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Substitute values for BF and FC;

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$B\ C^2= \sqrt{112.36$

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Next, we calculate A C.

To calculate A C, we need to calculate A F, considering triangle B F A

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Substitute values for B F and A B;

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$A\ F = \sqrt{88$

$A\ F = 9.4$

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$A\ C = A\ F + F\ C$

$A\ C = 9.4 + 5.6$

$A\ C = 15.0$

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<em>Hence, the perimeter is 38.6</em>

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3 years ago

Nadia plans to paint her jewelry box. The box is shaped like a rectangular prism with the dimensions

Pachacha [2.7K]

Answer:

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Step-by-step explanation:

we know that

The surface area of the box is equal to

$SA=2B+PH$

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P is the perimeter of the base

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we have

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