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katen-ka-za [31]
3 years ago
12

What is the sum of the arithmetic series below?

Mathematics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

Option A, 0

Step-by-step explanation:

-105 +-100 + -95 + -90 +-85 + ... + -5 + 0 + 5+ ... + 85+ 90 +95 + 100 + 105

The answer is 0 because there is the same amount of negative numbers as there is positive.  Therefore, the answer is Option A, 0

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Help with this question please!!
notsponge [240]
18x can also be expressed as:

= 2x * (4+5)
= 2x * 9
= 18x

ANSWER: 2x * (4 + 5)

Hope this helps! :)
3 0
3 years ago
Read 2 more answers
Marsha spends 150 minutes a night doing homework.
kodGreya [7K]

Answer:

70%

Step-by-step explanation:

Maths homework takes 1/6×150mins

=150/6=25 mins

science homework takes 20/100×150

=3000/100

=30mins

Language Arts homework uses 1/3×150

=150/3

=50 mins

percent of time left for Marsha's social studies homework=total time used / original time

=(25+30+50)mins

=105mins/150mins×100%

=0.7×100

=70%

3 0
2 years ago
2x(27x+5) Evaluate this please
igomit [66]

Answer:

54x^2 + 10x

Step-by-step explanation:

6 0
3 years ago
Please help due ASAP <br> Show workings please
Nostrana [21]

Step-by-step explanation:

I don't know if this is the right way to so it, but I would do it like this

since a triangle has 180 degrees, the angles all have to add up to 180

So 180 = a + b + c

we already know a, its 95

So 180 = 95 + b + c

now we know the equation for b, so we'll just put it there instead of the b, and since the angles are the same, we should put it instead of c too

180 = 95 + (4x-15) + (4x-15)

now subtract 95 from both sides

85 = (4x-15) + (4x-15)

add the xs and numbers together

85 = 8x - 30

now add the 30 to both sides

115 = 8x

divide by 8

your x is 14 3/8 or 14.375 or 115/8

that's not your angle, that's your x

5 0
3 years ago
Which of the following describes a way to graph the function g(x)= -2|x|
Nutka1998 [239]
It looks like a “^” because of the negative while it starts at y = -2
5 0
2 years ago
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