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Gekata [30.6K]
3 years ago
5

Find the value of x. Round to the nearest tenth.

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer: 76.5

Step-by-step explanation:

Interior angles of a triangle = 180 degrees so then you do 180-27 to get 153. Then 153 divided by 2 = 76.5

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Write the sum using summation notation, assuming the suggested pattern continues. 5 - 15 + 45 - 135 + ...
nalin [4]

Answer:

<em>summation of five times negative three to the power of n from n equals zero to infinity</em>

Step-by-step explanation:

<u>Summation Notation </u>

It represents the sum of a finite or infinite number of terms. Let's analyze the terms of the given succession:

5-15+45-135+...

If we take 5 as a common factor, we have

5(1-3+9-27+...)

The parentheses contain the alternate sum/subtraction of powers of 3. The odd terms are positive, the even terms are negative, thus the exponent must be n starting from 0 or n-1 starting from 1

The summation is then represented by

\sum_{n=0}^{\infty}5(-3)^n

This corresponds with the option:

<u>summation of five times negative three to the power of n from n equals zero to infinity</u>

8 0
3 years ago
Line CD contains points A (4, 6) and B (−2, 6). The slope of line CD is (4 points)
lbvjy [14]

Answer:

0

Step-by-step explanation:

To find the slope, we use the formula

m= (y2-y1)/(x2-x1)

   = (6-6)/(-2-4)

   = 0/-6

   =0

8 0
3 years ago
Mr. Singh needed to understand the trend of his students’ latest test scores. Find the mean and median for each set of data, and
uranmaximum [27]

Answer:

See explanations below

Step-by-step explanation:

Mean is the average of the data

Mean = sum of data/sample size

Sum of data = 89+99+80+5+90+0+100+95

Sum of data = 558

Sample size = 8

Mean = 558/8

Mean = 69.75

Median is the data value in the middle after rearrangement

Rearrange

0 , 5, 80) 89, 90, (95, 99 100

Median = 89+90/2

Median = 89.5

The parameter that gives a better picture of the scores is the Mean since all the given datas are taken into consideration

5 0
3 years ago
Read 2 more answers
Daisy tells you she is using 8% of her $220.00 income for clothing. How many dollars does this represent?
love history [14]
ANSWER: $17.60

WORK:
To solve this, find 8% of $220.

To do that, convert 8% in a decimal and multiply it by 220.

8% converted into a decimal has a value of 0.08.

220 x 0.08 = 17.6

therefore, daisy spends $17.60 on clothes.
4 0
3 years ago
what is 1+1-2? I need help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz yea I don't know the answer.
katovenus [111]
Your answer is 0, use PEMDAS and left to right 1+1=2 then subtract your 2, so 2-2=0
4 0
3 years ago
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