Find the area of the rhombus. d1 = 10 m; d2 = 18 m

I NEED THIS< it's FOR MY TEST TO GET INTO HARVARD UNIVERSITY

90 sq. meters

Step-by-step explanation:

The area of a rhombus can be found by multiplying both diagonals by each other and dividing by 2: a = (d1 * d2)/2

10 x 18 is 180, divided by 2 is 90. Therefore, the area is 90 meters squared.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

25% is the answer