3. Figure 7.49 has 28

In Fig. 7.49, angle B

In Fig. 7.49, /_B\

In Fig. 7.49, /_B\

Triangle ABC (see figure) has a base of 2y, a height of y, and an area of 49. What is y?

If the standard deviation of a population is 7 , what would be the population variance ? A. 14 B. 21 C. 49 D . 28

The figure formed by the pairs of lines 3x^(2)+10xy+3y^(2)=0 and 3x^(2)+10xy+3y^(2)-28x-28y+49=0 is a

The figure formed by the four lines 3x^(2)+10xy+3y^(2)=0 and 3x^(2)+10xy+3y^(2)-28x-28y+49=0

Factorise : 49x^(2) + 28xy + 4y^(2)

Find the value of m so that the quadratic equation mx (x - 7) + 49 = 0 has two equal roots.