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nikitadnepr [17]
3 years ago
8

BRAINLIEST BRAINLIEST!!!

Mathematics
1 answer:
Naddika [18.5K]3 years ago
8 0

Answer:

Step-by-step explanation:

3. A=\frac{ab}{2} =\frac{12*16}{2}= 96m^2

5.Unknown side equals 17.75m

7. C=\sqrt{a^2+b^2}=\sqrt{2^2+21^2}=21.1m^2

9. Unknown side equals 14.73m

15. 22.8m

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PLEASE HELP QUICKLY!!!!! PLZZZZZZ!!!!!!!
tamaranim1 [39]
(4)=34 (3/2)=67 sorry if I am wrong.
5 0
2 years ago
What is 9 superscript 7 written in expanded form? 9 + 9 + 9 + 9 + 9 + 9 + 9 9 times 9 times 9 times 9 times 9 times 9 times 9 7
GrogVix [38]

Answer:

4,782,969

Step-by-step explanation:

9^7

Written in expanded form = 9 times 9 times 9 times 9 times 9 times 9 times 9

= 9 × 9 × 9 × 9 × 9 × 9 × 9

= 4,782,969

9^7 means multiplying 9 in 7 places

9^7 = 4,782,969

3 0
2 years ago
Read 2 more answers
1. Find the product of 2.6 x 107 and 6.3 x 16
qaws [65]

Answer:

28'042.56

Step-by-step explanation:

2.6 x 107=278.2

6.3 x 16= 100.8

278.2x100.8=28'042.56

7 0
3 years ago
Read 2 more answers
1. Find the value of the expression.<br>6 = 4[3(5 - 8) + 6] + 7​
Art [367]

Answer:

24

Step-by-step explanation:

5 0
3 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Contact [7]

Answer:

\dfrac{z-y}{a+b}

Step-by-step explanation:

Given expression:

\dfrac{z^2-y^2}{a^2-b^2}\div \dfrac{z+y}{a-b}

Substitute

a^2-b^2=(a-b)(a+b)\\ \\z^2-y^2=(z-y)(z+y)

into the expression:

\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\div \dfrac{z+y}{a-b}\\ \\ \\=\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\times \dfrac{a-b}{z+y}\\ \\ \\=\dfrac{z-y}{a+b}

4 0
3 years ago
Read 2 more answers
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