3 years ago

PLEASE CAN SOMEONE HELPPP

Mathematics

1 answer:

NikAS [45]3 years ago

4 0

Answer:

second option

Step-by-step explanation:

The perimeter P is the sum of the 3 sides, then

P = 4x² + 3 + 2x - 5 + x + 11 ← collect like terms

= 4x² + 3x + 9

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Third degree with zeros of − 3 −1 and 5 and a y-intercept of − 10

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Answer:

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Step-by-step explanation:

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3 years ago

What’s the size of the missing angle

goldenfox [79]

Answer:

Option D, 44

Step-by-step explanation:

Step 1: Find the size of the missing angle

All triangles add up to 180 degrees.

$106 + 30 + x = 180$

Step 2: Combine like terms

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$136 + x = 180$

Step 3: Subtract 136 from both sides

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3 years ago

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Step-by-step explanation:

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3 years ago

PLEASE HELP ME NOW!!

puteri [66]

Answer:

$x=4+-2\sqrt{7}$

Step-by-step explanation:

To solve, we need to take square root of both sides first:

$(x-4)^2=28\\\sqrt{(x-4)^2} =+-\sqrt{28} \\x-4=+-\sqrt{28}$

Now we use the property of radical shown below to simplify square root of 28:

Property: $\sqrt{x*y}=\sqrt{x} \sqrt{y}$

Now, we have:

$x-4=+-\sqrt{28}\\x-4=+-\sqrt{4*7}\\x-4=+-\sqrt{4}\sqrt{7}\\x-4=+-2\sqrt{7}$

Now we take 4 to the other side and isolate x:

$x-4=+-2\sqrt{7} \\x=4+-2\sqrt{7}$

first answer choice is right.

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Step-by-step explanation:

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3 years ago

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