C-10-Q075mediumsingle_mcq

Combining $\sqrt{3}\,x = x + 42$ gives $x = ?$

a $\dfrac{42}{\sqrt{3}-1}$
b $42(\sqrt{3}-1)$
c $42\sqrt{3}$
d $42$

ব্যাখ্যা

Setting the two height expressions equal gives $\sqrt{3}\,x = x + 42$ , so $\sqrt{3}\,x - x = 42$ , i.e. $x(\sqrt{3}-1)=42$ . Dividing yields $x = \frac{42}{\sqrt{3}-1}$ .

এই অধ্যায়ের আরও প্রশ্ন

C-10-Q076Hence approximately equals—
C-10-Q077Rationalizing, is equivalent to—
C-10-Q078As the observer moves backwards on level ground, the angle of elevation of a fixed building top—
C-10-Q079The pole stands , breaks without separation, and the broken piece slopes down to at distance m, with . From ,
C-10-Q080Solving for the standing piece, equals—
C-10-Q081Numerically equals—
C-10-Q082From the same triangle, equals—
C-10-Q083So the broken piece equals—
C-10-Q084The total height of the pole is approximately—
C-10-Q085The unbroken (still standing) piece measures approximately—

Chapter 10: Distance and Elevation — সব প্রশ্ন দেখুন (160টি) →

Combining $\sqrt{3}\,x = x + 42$ gives $x = ?$

\dfrac{42}{\sqrt{3}-1}

42(\sqrt{3}-1)

42\sqrt{3}

42

ব্যাখ্যা

Setting the two height expressions equal gives $\sqrt{3}\,x = x + 42$ , so $\sqrt{3}\,x - x = 42$ , i.e. $x(\sqrt{3}-1)=42$ . Dividing yields $x = \frac{42}{\sqrt{3}-1}$ .

Combining 3 x=x+42\sqrt{3}\,x = x + 423​x=x+42 gives x=?x = ?x=?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Combining 3 x=x+42\sqrt{3}\,x = x + 423​x=x+42 gives x=?x = ?x=?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Combining $\sqrt{3}\,x = x + 42$ gives $x = ?$

Combining $\sqrt{3}\,x = x + 42$ gives $x = ?$