4 years ago

Aline with a slope of 2 passes through the point (3,9).

Mathematics

1 answer:

azamat4 years ago

4 0

Answer:

WAP

Step-by-step explanation:

ddhghfd WAP

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Merchant buys shipment of spices for $76.00 and sells for $100.00. If he profits an extra $2.00 for each sack sold, how many sac

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The sum of squares of numbers is: 13

Step-by-step explanation:

Let x and y be two numbers

Then,

Difference of the squares of the numbers will be:

$x^2-y^2$

Product will be:

$xy$

Given identity is:

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Given values are:

Difference of the squares of the numbers= $x^2-y^2=5$

Product of numbers = xy = 6

Putting the values in the identity

$(x^2+y^2)^2=(5)^2+[2(6)]^2\\=25+(12)^2\\=25+144\\=169$

As we have to only find x^2+y^2

Taking square root on both sides

$\sqrt{(x^2+y^2)^2}=\sqrt{169}\\x^2+y^2=13$

The sum of squares of numbers is: 13

Keywords: Identities

Learn more about identities at:

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3 years ago

Solve the right triangle ABC with right angle C if B=30 degrees and c=10.

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C=10, C=90°, B=30°, A+B+C=180°
A+30°+90°=180°⇒A=60°

cos30°=a/c
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a<span>≃8.6602

c²=a²+b²⇒b²=c²-a²
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b=5
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36, 3.6, 0.36, 0.036 is the order

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