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1 year ago

Solve the system by substitution. -2x=y 4x+10y=16

Mathematics

1 answer:

Leviafan [203]1 year ago

7 0

Answer:

x=-1, y=2

Step-by-step explanation:

Plug the y=-2x into the second equation in place of the y to get 4x+10(-2x)=16

Simplify this to 4x-20x=16 then to -16x=16

Divide both side by -16 to get x=-1

Plug x=-1 into the first equation to get -2(-1)=y

Simplify to get y=2

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Step-by-step explanation:

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2 years ago

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2 years ago

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To measure a stone face carved on the side of a mountain, two sightings 900 feet from the base of the mountain are taken. If th

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Answer:

Height of the stone face = 66.29 feet

Step-by-step explanation:

Refer the given figure, here we need to find height of the stone face,

Height of the stone face = CD

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$tan31=\frac{AC}{AB}\\\\tan31=\frac{AC}{900}\\\\AC=540.77feet$

In ΔABD we have

$tan34=\frac{AD}{AB}\\\\tan34=\frac{AD}{900}\\\\AD=607.06feet$

CD = AD - AC = 607.06 - 540.77 = 66.29 feet

Height of the stone face = CD = 66.29 feet

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3 years ago

100 points and brainliest<br> What Is the purpose of an amino acid codon chart?

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<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ The purpose of having these is so that we can identify the amino acid that corresponds to DNA and RNA to produce a protein. They specify the order of amino acids in producing the protein.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

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2 years ago

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Find y when x=12 if y=15 when x=3

larisa [96]

The answer would be y=60.

I think.

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2 years ago