3 years ago

Write the formula for the area of a trapezoid

Mathematics

1 answer:

Volgvan3 years ago

6 0

Answer:

Step-by-step explanation:

A=(a+b)/2 x h.

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3 years ago

Law of cosines.Anyone good in Trigonometry?

marin [14]

Answer:

$c=11.8\ units$

Step-by-step explanation:

we know that

The formula of law of cosines is equal to

$c^2=a^2+b^2-2(a)(b)cos(C)$

where

a, b and c are sides. C is the angle opposite side c

In this problem we have

$a=3\ units\\b=10\ units$

$C=120^o$

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3 years ago

Need help on A. B. & C.

nignag [31]

Answer:

Step-by-step explanation:

A. 7x + 52

Add your like terms (the numbers with variables and the numbers without)

B. 13x + 142

C. Put 8 in for x.

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3 years ago

Read 2 more answers