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Aleksandr-060686 [28]
3 years ago
13

*HELP ASAP*

Mathematics
1 answer:
k0ka [10]3 years ago
5 0

Using unit concepts, it is found that:

  • a) Grams.
  • b) Grams.
  • c) Grams squared.
  • d) Grams squared.

-----------------------------

  • For a data-set, the standard deviation has the same unit as the data-set, both for the sample and the population.
  • The variance has the unit squared, both for the sample and the population.
  • For example, if the data-set is in metres, the standard deviation will be in metres while the variance will be in squared metres.

-----------------------------

In this question, the data-set is in grams.

  • The standard deviation, both for the sample and the population, in items a and b, will be in grams.
  • The variance, both for the sample and the population, in items c and d, will be in grams squared.

A similar problem is given at brainly.com/question/14524219

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Answer: The slope of the line is -2

Step-by-step explanation:

We can use the formula \frac{y_{2} -y_{1} }{x_{2} -x_{1} } to solve to for this

\frac{-9--1}{-1--5} \\\frac{-8}{4} \\-2

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What times what equals 280?
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2 times 140 is 280 Or 4 times 70 is also 280
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Please no link! need question answered as soon as possible
ira [324]

\huge\bold{Given :}

Angle 1 = 40°

Angle 2 = x°

Angle 3 = ( x + 28 )°

\huge\bold{To\:find :}

The value of x.

\large\mathfrak{{\pmb{\underline{\orange{Solution}}{\orange{:}}}}}

{\boxed{\mathcal{\purple{The\:value\:of\: x \:is\:56 ° .\:}}}}✅

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

We know that,

\sf\pink{Sum\:of\:angles\:of\:a\:triangle\:=\:180°}

➪ ∠ 1 + ∠ 2 + ∠ 3 = 180°

➪ 40 + x° + x° + 28° = 180°

➪ 2x° + 68° = 180°

➪ 2x° = 180° - 68°

➪ x° = \frac{112° }{2}

➪ x° = 56°

\sf\red{Therefore, \:the\: value \:of \:x\: is \:56°.}

\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}

∠ 1 + ∠ 2 + ∠ 3 = 180°

✒ 40° + 56° + 56° + 28° = 180°

✒ 180° = 180°

✒ L. H. S. = R. H. S.

\boxed{Hence\:verified.}

\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆

3 0
3 years ago
6
SVETLANKA909090 [29]

Answer:

56.52 units²

explanation:

  • We should know circle's area: πr²
  • Then the semi circle shall have half area, so formula: (1/2)πr²

Steps:

Using the formula:

→ (1/2)πr²

→ (1/2)(3.14)(6)²

→ 56.52 units²

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Answer:

i believe its D

Step-by-step explanation:

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