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2 years ago

So I am about to ask three math points so whoever comments on this first and answers my next question will get 100 point :)

Mathematics

1 answer:

katrin2010 [14]2 years ago

3 0

Answer:

lets get started

Step-by-step explanation:

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A robot can complete 7 tasks in

SSSSS [86.1K]

Answer:

5/42 is your answer take robot to complete

7 tasks = 5/6

1 task = 5/42 hour.

1 hour / (5/42 hour/task) = 15/2 tasks = 8.2 tasks.

half a task isn’t a complete task, so the answer is 8 tasks.

5 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%7B%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20-%206x%2

Nimfa-mama [501]

First of all, we can observe that

$x^2-6x+9 = (x-3)^2$

So the expression becomes

$\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}$

This means that the expression is defined for every $x\neq 3$

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

$x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2$

Since we can't accept 3 as an answer, the actual solution set is

$(-\infty,-2] \cup [2,3) \cup (3,\infty)$

7 0

2 years ago

(−5)(−0.4)(1.8)(−3.25)

bagirrra123 [75]

Answer:

-11.7 is the correct answer. Hope this helps

4 0

2 years ago

Read 2 more answers

PLEASE HELP FAST!!!!!! How many triangles can be constructed using the following three side lengths: 4.8 cm, 2.1 cm, and 2.6 cm?

34kurt

Answer:

no triangles

Step-by-step explanation:

why?

the triangle inequality theorem

this theorem states that the sum of any two sides must be bigger than or equal to the third side. however, the sum of 2.1 and 2.6 is less than 4.8

7 0

3 years ago

Twenty one is divisible by 3 fifteen is divisible by 5

Basile [38]

Answer:

whats the question

Step-by-step explanation:

5 0

3 years ago