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Shtirlitz [24]
3 years ago
8

34 points to whoever can answer this question !! :D

Mathematics
2 answers:
masha68 [24]3 years ago
8 0

- 2 3/5 - 1 2/3

= -2 9/15 - 1 10/15

= (-2 9/15) + (- 1 10/15)

= -3 19/15

= -4 4/15

Answer is B

-4 4/15

Anna007 [38]3 years ago
6 0

-2\dfrac{3}{5}-1\dfrac{2}{3}\\\\\text{the common denominator is 15}\\\\-2\dfrac{3\cdot3}{5\cdot3}-1\dfrac{2\cdot5}{3\cdot5}=-2\dfrac{9}{15}-1\dfrac{10}{15}=-\left(2\dfrac{9}{15}+1\dfrac{10}{15}\right)=-3\dfrac{19}{15}\\\\=\boxed{-4\dfrac{4}{15}}\to\boxed{b.}

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Find the sum of 1 + 3/2 + 9/4 + …, if it exists.
zmey [24]

Answer:

Option (4)

Step-by-step explanation:

Given sequence is,

1+\frac{3}{2}+\frac{9}{4}..........

We can rewrite this sequence as,

1+\frac{3}{2}+(\frac{3}{2})^2.............

There is a common ratio between the successive term and the previous term,

r = \frac{\frac{3}{2}}{1}

r = \frac{3}{2}

Therefore, it's a geometric sequence with infinite terms. In other words it's a geometric series.

Since sum of infinite geometric sequence is represented by the formula,

S_{n}=\frac{a}{1-r}  , when r < 1

where 'a' = first term of the sequence

r = common ratio

Since common ratio of the given infinite series is greater than 1 which makes the series divergent.

Therefore, sum of infinite terms of a series will be infinite Or the sum is not possible.

Option (4) will be the answer.

3 0
3 years ago
What is the slope of the line through (-9,6) and (-3, 9)?
Artyom0805 [142]
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3 0
3 years ago
If 5&lt;2x+3&lt;11, what is the possible range of value of -4x-6
Lady bird [3.3K]

Answer:

-10 > (-4x - 6) > -22

Step-by-step explanation:

Given inequality is 5 < 2x + 3 < 11

Now we will multiply this inequality by (-2) resulting,

5(-2) > (2x + 3)(-2) > 11(-2)

-10 > (-4x - 6) > -22 (Sign of inequality gets reversed when the inequality is multiplied or divided by a negative number)

Therefore, the possible range of (-4x - 6) is between -22 and -10.

4 0
3 years ago
Cartoon=uuu
LekaFEV [45]

Answer:

three u's and an I

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3×3=9

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8 0
3 years ago
Susan started her homework at 1{:}59\text { p.M.}1:59 p.M.1, colon, 59, start text, space, p, point, m, point, end text and fini
inn [45]

Answer:

Step-by-step explanation:

Susan started her homework at = 1:59 pm

She took time = 96 mins

Time at which she had volleyball practice = 4:00 pm

So, time between her starting of homework and starting of volleyball is given by

1:59 pm to 4:00 pm = 2 hrs and 1 mins

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But she took 96 mins to do her homework, so

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Therefore, time Susan had between finishing her homework and the beginning of volleyball practice is 25 mins

7 0
3 years ago
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