3 years ago

True or false? If you took a true "if-then" statement and reversed the clauses, the new statement would also be true.

1 answer:

8 0

Reversing the clauses of an "if-then" statement only sometimes makes the new statement true, so it isn't true or false. For example, reversing the clauses of "if 1=x, then x=1" makes the new statement true, but reversing the clauses of "if x=2, then |x|=2" doesn't.

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Help me please I’m not the smartest

viktelen [127]

X^2=16
x= 4 OR x=-4

The picture attached below is your answer because it’s between 4 and -4.

3 0

2 years ago

The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circle i

nasty-shy [4]

Answer:

60cm^2

Step-by-step explanation:

We assume that is a circumscribing quadrilateral, rather than one that is circumscribed. It is also called a "tangential quadrilateral" and its area is ...

K = sr

where s is the semi-perimeter, the sum of opposite sides, and r is the radius of the incircle.

K = (12 cm) (5cm) = 60 cm²

_____

A quadrilateral can only be tangential if pairs of opposite sides add to the same length. Hence the given sum is the semiperimeter.

8 0

3 years ago

In how many ways can a committee of five women and four men be formed from a group of seven women and seven men?

vekshin1

Number of combinations of 5 women from 7 = 7C5 = 7*6 / 2 = 21
for men its 7C4 = 7*6*5 / 3*2 = 35

Total number of ways = 21*35 = 735

6 0

3 years ago