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3 years ago

Please help with my algebra homework and explain if you can

Mathematics

1 answer:

balandron [24]3 years ago

5 0

$A= \frac{1}{2} h (x+y)$

we have to solve for x , solving for x means , we have to isolate x one one side , by shifting all other variables to other side

$A= \frac{1}{2} h (x+y)$

Multiply both sides by 2

2A = h(x+y)

Divide both sides by h

2A/h = x+y

Subtract y from both sides

$\frac{2A}{h} -y =x$

$x=\frac{2A}{h} -y$

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Ganezh [65]

Answer:

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Step-by-step explanation:

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3 years ago

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Olegator [25]

Answer:

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Step-by-step explanation:

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3 years ago

31.8 miles/hr= ? Feet/sec

PSYCHO15rus [73]

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therefore:

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3 years ago

Find the value of a and b if √5-1/√5+1=a+b√5

timurjin [86]

Answer:3/2-(√5)/2

Step-by-step explanation:

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3 years ago

What is the distance from C to D? A. 5 units B. 1 unit C. 25 units D. 7 units

Vera_Pavlovna [14]

Answer:

Option A

Step-by-step explanation:

According to the distance formula , for any 2 points P & Q whose coordinates are (x¹ , y¹) and (x² , y²) respectively. So ,

$PQ = \sqrt{(x^{2} - x^{1} )^{2} + (y^{2} - y^{1})^{2} }$

NOTE = HERE x² , y² DOESN'T MEAN THE SQUARES OF x & y . THEY ARE JUST COORDINATES.

According to the question ,

Coordinate of C = (2 , -1)

Coordinate of D = (5 , 3)

Using distance formula ,

$CD = \sqrt{(5-2)^{2} + (3 -(-1))^{2} }$

$=> CD = \sqrt{3^{2} + 4^{2} } = \sqrt{9 + 16} = \sqrt{25} = 5$

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3 years ago