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otez555 [7]
3 years ago
7

Lots of points please help

Mathematics
2 answers:
iren [92.7K]3 years ago
6 0

Answer:

first one

Step-by-step explanation:

do i really need an explanation like come on

8_murik_8 [283]3 years ago
3 0

Answer:

hi

Step-by-step explanation:

I need help on this too

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The difference of 9 times a number and 2 is 67. Write an equation that can be used to find the unknown number?
pochemuha
9x - 2 = 67
67 + 2 = 69
69 × 9 = 621
621 = x
3 0
3 years ago
Use summation notation to write the series 49 + 54 + 59 +... for 14 terms.
My name is Ann [436]

Answer:

Arithmetic sequence states that a sequence of numbers such that the difference between the consecutive terms is constant.

it is given by:  a_n = a+(n-1)d where a is the first term , n is the number of term and d is the common difference.

Given the series: 49 + 54 + 59+ ......

here, Common difference(d) = 5

First term(a) = 49

by definition we have;

For nth term

a_n = a+(n-1)d

a_n = 49+(n-1)5

a_n =49+5n -5 = 5n + 44

To write the series using summation notation for 14 terms

Summation symbol '\sum'

The series for 14th terms is given by;

\sum_{n=1}^{14}(5n +44)


5 0
3 years ago
Read 2 more answers
Find the volume of a cylinder with a radius of 4.8 cm and a height of 14.6 cm. [Use it =
juin [17]

Answer:

1056.24 cm^3

Step-by-step explanation:

The volume of a cylinder is \pi r^2h. The problem says to use \pi=3.14

Plug in your numbers 3.14*4.8^2*14.6=1056.24

6 0
2 years ago
16+6-6x-4=-7x+3+7<br>how to solve for x​
Alla [95]

Answer:

x = -8

Step-by-step explanation:

16+6-6x-4=-7x+3+7

Combine like terms

18 -6x = -7x+10

Add 7x to each side

18-6x+7x = -7x+7x+10

18+x = 10

Subtract 18 from each side

18+x-18 = 10-18

x = -8

5 0
3 years ago
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Find the slope of the line that passes through (-2, 5) and (-2, 1).<br> m=5-1/-2-2/=4/-4= -1
Inessa05 [86]

Answer:

(1-5)/(-2+2)= -4/0 is undefined

4 0
3 years ago
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