3 years ago

52 points will mark brainliest for correct answers

Mathematics

2 answers:

Sedbober [7]3 years ago

6 0

18 and 17 should have a line through

Sever21 [200]3 years ago

6 0

18 and 17 would have a line

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What is the area of this trapezoid?

alukav5142 [94]

Answer:

A=0.5(a+b)h

=0.5(27+17)4=88units^2

Step-by-step explanation:

8 0

3 years ago

S=1 - 1/4 + 1/6 - 1/9 + 1/11 - 1/14..........infinity. Find the sum of series.

Ann [662]

$1+\frac{1}{6}+\frac{1}{11}+\cdots=\sum^{\infty}_{n=1} \frac{1}{5n-4} \\ \\ \frac{1}{4}+\frac{1}{9}+\cdots=\sum^{\infty}_{n=1} \frac{1}{5n-1} \\ \\ S=\sum^{\infty}_{n=1} \left(\frac{1}{5n-4} -\frac{1}{5n-1} \right) \\ \\ =\frac{\pi}{5} \sqrt{\frac{1}{5} (5+2\sqrt{5})}$

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2 years ago

One angle of a rhombus measures 108°, and the shorter diagonal is 9 inches long. Approximately how long is the side of the rhomb

liberstina [14]

The value of the length of the rhombus will be found as follows:
cos θ=adjacent /hypotenuse
θ=108/2=54°
adjacent = 9/2=4.5 inch
hypotenuse=length of the rhombus
thus
cos 54=9/x
x=4.5/cos 54
x=7.6558~8 inches
the answer is 8 inches

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3 years ago

7+ 2- 3+ 3- - 7+ 1- 4

saveliy_v [14]

Answer:-15

Step-by-step explanation:

6 0

3 years ago

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Another one again hate math

n200080 [17]

Answer:

-6

Step-by-step explanation:

i think

3 0

3 years ago