Answer:
(b) She should have rounded –8.02 to –8
Step-by-step explanation:
Given
See attachment for long division
Required
Her error
Ignoring the minus sign,
Her approximation is as follows:
Her approximation of -8.02 is wrong
Because:
<em>Hence (b) is correct</em>
Answer:
a)60°
b)BD=10
c)AB=20
d)100√3
Step-by-step explanation:
B
let's BD be x
according to the question
<h2>therefore</h2><h3>BD=10</h3>
c)
according to Pythagoras theorem
a²+b²=c²
c=√a²+b²
c=√10²+(10√3)²
c=√100+300
c=√400
c=20
D)
<u>the</u><u> </u><u>two</u><u> triangles</u><u> are</u><u> congruent</u>
so AC=2(10√3)
=20√3
as we know
area of a triangle =
½bh
=½×20√3×10
=10√3×10
=100√3
<h2>this will guide you</h2>
Hello User,
Answer: five hundred and twenty-two million and forty-three thousand and nine
Answer:
Step-by-step explanation:
I need the expressions, please.