Answer:
a=6 or -6
Step-by-step explanation:
Solve the determinant to get a²-36=0
(a-6)(a+6)=0
a=6 or -6
Answer:
Step-by-step explanation:
Length of the rectangle given in the the figure attached = 2 cm
Width of the rectangle = 5 cm
Scale used, 24 in to 1 cm
Therefore, length of actual rectangle = 2×24 = 48 in
width of the actual rectangle = 5×24 = 120 in
Now we have to draw a drawing by using the scale,
16 inches to 1 cm
Or 1 inch =
cm
Therefore, length of the rectangle drawing = 
= 3 cm
Similarly, width of the rectangle drawing = 
= 7.5 cm
Statistics informed decisions using data 5E
Answer:
(a)
(b)
Step-by-step explanation:
The sum of the angles inside a triangle must be 180°, but from the right angle we already have 90°, so the sum of the two acute angles is 90°, then:

Let
be the length of the shadow and
the height of the three, so tan(35) is

Solving that last equation for h:

The value of 4 is 40 thousand because it is in the ten thousands place