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3 years ago

Please help. Could you explan your answer also? thanks

Mathematics

1 answer:

natulia [17]3 years ago

4 0

Answer: Choice B) -4

The lower quartile, also known as Q1 or the first quartile, is the left edge of the box. In this case, that is at -4. We can drop a vertical line from the left edge of the box until we hit -4 on the number line.

Side Note: 25% of the data values are below Q1, while 75% of the data values are above Q1

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Evaluate 9ab, for a = 5 and b =<br> - 7

Yuri [45]

Answer:

-315

Step-by-step explanation:

Plug in 5 as a and -7 as b into the term:

9ab

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Multiply:

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So, the answer is -315.

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2 years ago

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Gravity pulls the metal down at 10 N, but the metal pieces RISES! At least how much force is needed to make it move upward?

prisoha [69]

Answer: Greater than 10 N

Step-by-step explanation:

Given

Gravity force on metal is 10 N

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$\Rightarrow F>10\ N$

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2 years ago

Which of the following angles are supplementary to _1?<br><br> Plsss Help

dolphi86 [110]

Angle 8 because supplementary is two angles whose sum is 180°.

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2 years ago

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Please help with this question.

Rzqust [24]

(cos Ф -cos Ф)² + (cos Ф + cos Ф)²

Firstly: (cos Ф -cos Ф)² = 0² = 0

Secondly :(cos Ф + cos Ф)² = (2cos Ф)². = 4. (cos Ф)² = 4cos² Ф

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2 years ago

The difference of twice a number and 2 is<br> 40. Find the number.

IgorLugansk [536]

Answer:

answer = 21

Step-by-step explanation:

2n - 2 = 40

2n - 2 + 2 = 40 + 2

2n = 42

2n/2 = 42/2

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2 years ago