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kupik [55]
2 years ago
7

Area of plane and composite figures

Mathematics
1 answer:
Phoenix [80]2 years ago
6 0
Dont click the link they track your ips
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-2(7a+ 9b) = –14a + [?]b
OverLord2011 [107]

Answer:

-18

Step-by-step explanation:

Left Hand Side = -2(7a + 9b) = -14a - 18b

Comparing it with Right Hand Side, ?  = -18

3 0
3 years ago
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A restaurant can seat 100 people. It has booths that seat 4 people and tables that seat 6 people. So far 5of the booths are full
Pachacha [2.7K]
How many booths and tables are there altogether?
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Please help with the question above :)!!! ^^
zhannawk [14.2K]
(-1,-9) because if we substituted 1 into x y would be 9 and if we substituted 1/2 into x y would be 3 but if we substituted -1 into x y would be 1/9 so therefore that value is incorrect

7 0
3 years ago
Find the area of the figure.
nevsk [136]

Answer:

<h2>        A = 132 cm²</h2>

Step-by-step explanation:

Area of the figure is a sum of area of rectangle 4 cm × 7 cm and trapezoid with bases of 19 cm i 7 cm and altitude of 8 cm.

Therefore:

A=7\cdot4+\dfrac{7+19}2\cdot8=28+26\cdot4=132

5 0
3 years ago
There are 15 trucks, 4 cars, and 2 buses in the parking lot. What is the ratio of cars to buses
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