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Vlad1618 [11]
3 years ago
12

Find the sum of the first 7 terms of the following series, to the nearest integer.

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

r = 2.5 \\ sum =  \frac{a( {r}^{n - 1} )}{r - 1}  \\  =  \frac{125( {2.5}^{7 - 1} )}{7 - 1}  \\  =  \frac{30517.6}{6}  \\  = 5086.3

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Need answers asap pls bae&lt;3<br>ill mark you the whatever if you answer bae​
ValentinkaMS [17]

Answer: Justin is shown in 15 pictures with friends, 6 with family, and 8 with only him

Step-by-step explanation: Hope this helps :)

5 0
2 years ago
After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6, 3), B'(-2, 1),
Rasek [7]

Answer:

<em>A</em>(-3, 6), <em>B</em>(-1, -2), <em>C</em>(-7, 1)

Step-by-step explanation:

To the pre-image after a 270°-counterclockwise rotation [90°-clockwise rotation], just reverse it by doing a 270°-clockwise rotation [90°-counterclockwise rotation]:

Extended Rotation Rules

  • 270°-clockwise rotation [90°-counterclockwise rotation] >> (x, y) → (-y, x)
  • 270°-counterclockwise rotation [90°-clockwise rotation] >> (x, y) → (y, -x)
  • 180°-rotation >> (x, y) → (-x, -y)

So, perform your rotation:

270°-clockwise rotation [90°-counterclockwise rotation] → <em>C</em><em>'</em>[1, 7] was originally at <em>C</em>[-7, 1]

→ <em>B'</em>[-2, 1] was originally at <em>B</em>[-1, -2]

→ <em>A</em><em>'</em>[6, 3] was originally at <em>A</em>[-3, 6]

I am joyous to assist you anytime.

3 0
3 years ago
Read 2 more answers
Find m <br> Help, I really don't understand this
Irina18 [472]
m\angle B=m\angle C\\&#10;m\angle C=180-100=80 \Rightarrow m\angle B=80
3 0
3 years ago
Read 2 more answers
The sum of three decimal numbers is 6. Exactly one of the numbers is less than 1. What could the numbers be?
shutvik [7]
Let the numbers be x,y, and z

x+y+z=6

x< 1

The answer may vary which are 3.3, 2.2 and.5.



8 0
3 years ago
Part 2 of 3
dlinn [17]

Considering that point S splits segment RT, we have that:

a) The value of y is of y = 4.

b) The lengths are: RS = 29, ST = 19.

<h3>How to find the value of variable y?</h3>

Point S splits segment RT into two parts, hence the length of segment RT can be given by the following equation:

RT = RS + ST

The measures are given as follows:

  • RS = 6y + 5.
  • ST = 3y + 7.
  • RT = 48.

Hence we can solve the equation for y, as follows:

RT = RS + ST

6y + 5 + 3y + 7 = 48.

9y = 36.

y = 4.

<h3>What are the lengths of segments RS and ST?</h3>

Considering that y = 4, we have that:

  • RS = 6y + 5 = 6(4) + 5 = 29.
  • ST = 3y + 7 = 3(4) + 7 = 19.

A similar problem, in which a point splits a segment, is given at brainly.com/question/4450896

#SPJ1

3 0
1 year ago
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