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Alex Ar [27]
3 years ago
9

Anyone wanna help me

Mathematics
1 answer:
EleoNora [17]3 years ago
6 0

\huge\text{Hey there!}

\mathsf{4(3 + 5) - 3\times9^2}

\mathsf{3 + 5 = \bf 8}

\mathsf{4(8) - 3\times 9^2}

\mathsf{4(8) = \bf 32}

\mathsf{32 - 3\times9^2}

\mathsf{9^2 = 9\times9 = \bf 81}

\mathsf{32 - 3\times 81 }

\mathsf{-3\times81 =\bf  -243}

\mathsf{32 - 243}

\mathsf{= \bf -211}

\boxed{\huge\text{= \bf  -211}}

\boxed{\boxed{\mathsf{OVERALL\  ANSWER: \bf 4(8) - 3 \times  81 \rightarrow }\huge\text{\bf Option C}}}\huge\checkmark

\large\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

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If the sum of squares for a sample containing 51 items equals 200, what is the standard deviation?
Mashcka [7]

The standard deviation is 1.98. Option A is correct.

The standard deviation formula is given as

  • \sigma = \sqrt{\frac{SS}{n} }

where:

  • SS is the sum of squares = 200
  • n is the sample size = 51

Substitute the given parameters into the formula to have:

\sigma = \sqrt{\frac{200}{51} }\\\sigma = \sqrt{3.922}\\\sigma = 1.980

Hence the standard deviation is 1.98

Learn more on standard deviation here: brainly.com/question/12402189

7 0
2 years ago
77. Find the greatest common factor (GCF) of the polynomial: 12x^4 + 8x^3 - 16x^2
Fed [463]

Answer:

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Step-by-step explanation:

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The exponent of the greatest common factor of x^4, x^3, and x^2 can be no larger than the smallest of these exponents, which is 2. So, the GCF of the variable portion of the terms is x^2.

The product of the coefficient GCF and the variable GCF is ...

... 4x^2

5 0
3 years ago
M∠1=12x-11°<br> m∠2=10x+17°
Artemon [7]

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Step-by-step explanation:

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Determine if the function is even, odd, or neither.
makkiz [27]

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Step-by-step explanation:

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try it on desmos

6 0
3 years ago
Read 2 more answers
(4/9)^-1=<br><br><br>A. -4/9<br><br>B. 9/4<br><br>C. -9/4
Romashka-Z-Leto [24]

Answer: 9/4

Step-by-step explanation: Think of (\frac{4}{9})^{-1}as \frac{4^{-1} }{9^{-1}}.

Now, we can change 4⁻¹ to 4¹ by moving it to the denominator and

we can change 9⁻¹ to 9¹ by moving it to the numerator.

So we have 9¹/4¹ which simplifies to 9/4.

5 0
3 years ago
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