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3 years ago

Can someone tell me what to press

Mathematics

1 answer:

vivado [14]3 years ago

3 0

press the top right box of the first box and the top left box of the second

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Find the sum of the arithmetic series given a1=8,a14=99,n=14.

Sergeu [11.5K]

Answer:

The sum of the series is 749

Step-by-step explanation:

Given

$a_1 = 8$

$a_{14} = 99$

$n = 14$

Required

The sum of the series

This is calculated using:

$S_n = \frac{n}{2}[a_1 + a_n]$

Substitute 14 for n

$S_{14} = \frac{14}{2}[a_1 + a_{14}]$

$S_{14} = 7[a_1 + a_{14}]$

Substitute values for a1 and a14

$S_{14} = 7[8 + 99]$

$S_{14} = 7*107$

$S_{14} = 749$

8 0

3 years ago

What is the length of side AC as shown on the coordinate plane? ТУ

Sauron [17]

Answer: 4 Units

Step-by-step explanation:

6 0

3 years ago

Find its x-coordinate.

Ilya [14]

Answer:

2.5

Step-by-step explanation:

The formula to find the midpoint of a line segment: $(\frac{1}{2}x_{1} + \frac{1}{2}x_{2}, \frac{1}{2}y_{1} + \frac{1}{2}y_{2})$

Where:

$x_{1} = -5\\x_{2} = 10\\y_{1} = 9\\y_{2} = 8$

1) Substitute the values into the midpoint formula.

$(\frac{1}{2}*-5 + \frac{1}{2}*10, \frac{1}{2}*9 + \frac{1}{2}*8)$

2) Solve it.

= $(-2.5 + 5, 4.5 + 4)$

= (2.5, 8.5)

7 0

2 years ago

Two six-sided fair dice are rolled simultaneously. The probability that the sum of the two numbers rolled is greater than 3, giv

Nezavi [6.7K]

A) Possible outcomes are ...
(1, 3), (1, 4), (2, 2), (2, 3), (3, 1), (3, 2), (4, 1)
for a total of 7 out of 36 outcomes that match your requirements.
p(3 < sum ≤ 5) = 7/36

B) Possible outcomes are ...
(6, 1), (6, 3), (6, 5), (1, 6), (3, 6), (5, 6)
for a total of 6 out of 36 outcomes that match your requirements.
p(6 and odd) = 6/36 = 1/6

4 0

3 years ago

(Photo) Please help mee

egoroff_w [7]

Hello Kid!
The answer would be 144 units^2.
Hope this helps!
~Nadia~

7 0

3 years ago

Read 2 more answers