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3 years ago

Five added to 3 times a number is equal to 8 less then 5 times the number

Mathematics

1 answer:

RSB [31]3 years ago

6 0

The answer is C. 3x+5= 5x -8

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What is the 12th partial sum of the summation of negative 2i minus 10, from i equals 1 to infinity?

Ksenya-84 [330]

Ans: 12th partial sum = -276

Given :
$\sum_{i=1}^{12} (-2i-10)$

Find the values for i = 1 to 12:
x (1) = -2 – 10 = -12
x (2) = -4 – 10 = -14
x (3) = -6 – 10 = -16
x (4) = -8 – 10 = -18
x (5) = -10 – 10 = -20
x (6) = -12 – 10 = -22
x (7) = -14 – 10 = -24
x (8) = -16 – 10 = -26
x (9) = -18 – 10 = -28
x (10) = -20 – 10 = -30
x (11) = -22 – 10 = -32
x (12) = -24 - 10 = -34

Add all of them:
12th partial sum = -276

8 0

3 years ago

For brainiest:):):):):):):):):):)

Andre45 [30]

Answer:

Polygons are many-sided figures, with sides that are line segments. Polygons are named according to the number of sides and angles they have. 1)draw a line of 7 in 2) draw a line of 10 cm

hope that help a little

Step-by-step explanation:

8 0

3 years ago

Please help<br><br> find the value of x in the given ratio.<br><br> 2/3=x/15

RoseWind [281]

The answer to this is x=3

4 0

2 years ago

Find the volume of a cube with side lengths of fifteen feet

lidiya [134]

Answer:

3375 feet cube

Step-by-step explanation:

Given :

side of cube = 15 feet

Formula used :

Volume of cube , v = a^3

Solution :

Volume of cube

= a^3

= 15^3

= 15*15*15

= 3375 feet cube

8 0

3 years ago

Can someone help me with this

beks73 [17]

Answer:

$x\geq 0$ and $x\leq -5$

this is what i think, hope it helps

4 0

3 years ago