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4 years ago

I don’t know what to do. Help please

Mathematics

2 answers:

geniusboy [140]4 years ago

5 0

If your looking at the square its 400m

Strike441 [17]4 years ago

3 0

The correct answer is 300pi + 400 m^2. If you are rounding then the answer is 494.25. Calculate the area of the circle: 400 pi. Multiply it by 3/4 and then add it to the area of the square, 400.

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Prove:- sin^2A-cos^2B=sin^2B-cos^2A

tankabanditka [31]

Step-by-step explanation:

1: change 'sin²A' and 'cos²B' into (1-cos²A)and (1-sin²A) respectively.

2:open the brackets and put signs accordingly.

3: cancel (-1) and (+1).

4: remaining is your answer.

4 0

2 years ago

Adam, Tessa, and Nicki take pictures on

NARA [144]

Answer:

Adam took 59 less pictures than Nicki. 78-19=59

Step-by-step explanation:

You do not need to know how many pictures Tessa took. Because you are only finding out how many fewer pictures Adam took than Nicki.

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4 years ago

Find the a26 arithmetic sequence: -15,-35,-55,-75 -515 460 -490

Vlad [161]

Step-by-step explanation:

<h3>QUESTION:-</h3>

Find 26th term of the A.P --15,-35,-55,-75...

<h3>Solution:-</h3>

First term=a=-15

Common Difference=d=-20

We know that

$\boxed{\sf a_n=a+(n-1)d}$

$\\ \:\:\:\:\sf {:}\dashrightarrow a_{26}=-15+(26-1)(-20)$

$\\ \:\:\:\:\sf {:}\dashrightarrow a_{26}=-15+25(-20)$

$\\ \:\:\:\:\sf {:}\dashrightarrow a_{26}=-15+(-500)$

$\\ \:\:\:\:\sf {:}\dashrightarrow a_{26}=-15-500$

$\\ \:\:\:\:\sf {:}\dashrightarrow {\boxed{\bf a_{26}=-515}}$

6 0

3 years ago

What is the difference of the whole number and the mixed number below? 8-2 7/8 A. 6 7/8 B. 6 1/8 C. 5 7/8 D. 5 1/8

Mariana [72]

Answer:

D. 5 1/8

Step-by-step explanation:

First, convert the mixed number into an improper fraction

8-2 7/8 = 8- 23/8

Calculate the difference

8-23/8 = 41/8

Simplify the fraction

41/8 = 5 1/8

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3 years ago

I need help for 2,3,4 and 5

hoa [83]

Answer:

2 is 12 3 is 3 faces 4 is 151 that's all i can tell u at least i helped

Step-by-step explanation:

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3 years ago