Braham Dev

Answer to: The value of $k$ for which the system of equations $3x - 7y = 1$ and $kx + 14y = 6$ is inconsistent, is

For a system of equations to be inconsistent, the two lines must be parallel, meaning they have the...

Answer to: In the given figure, $PA$ is tangent to a circle with centre $O$. If $\angle APO = 30°$ and $OA = 2.5$ cm, then $OP$ is equal to

Given:
- $ \displaystyle PA $ is a tangent to the circle at point $ \displaystyle A $.
-...

Answer to: If probability of happening of an event is $57%$, then probability of non-happening of the event is

The probability of an event happening is given as $ \displaystyle 57\% $.

Since the tot...

Answer to: OAB is sector of a circle with centre $O$ and radius $7$ cm. If length of arc $\overset{\frown}{AB}= \frac{22}{3}$ cm, then $\angle AOB$ is equal to

Given:
- Radius of the sector, $ \displaystyle r = 7 $ cm
- Arc length, $ \disp...

Answer to: In $\triangle ABC, DE || BC$. If $AE = (2x + 1)$ cm, $EC= 4$ cm, $AD= (x + 1)$ cm and $DB = 3$ cm, then value of $x$ is:

Given that $ \displaystyle DE \parallel BC $, by the **Basic Proportionality Theorem (Thales' Theore...