we are given to find
we know that
where
i is number of rows
j is number of column
Here , we get
i=2
and j=3
so,
means second row and third column
we can look at matrix and find element
we can see that
that element is -21
so,
...........Answer
60 cm2
Explanation:
Find area of each face/shape
Triangle:
1/2 x 4 x 3 = 6
(6 • 2 cos there are 2 triangles) 6 x 2= 12
Area of square on the left:
4 x 4 = 16
Area of middle rectangle:
3 x 4= 12
Area of rectangle on the right:
4 x 5 = 20
Add them all up together:
12 + 16 + 12 + 20= 60
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I don’t know what your trying to find but you basically create an equation, like this
3x+5x=80
and solve which would result in x=10
so there is
30 geckos
and
50 anole lizards
Answer:
The number 30 is composite
Step-by-step explanation:
It is a composite because multiple numbers can go into 30 like 6 and 5 or 3 and 10. A prime number is like 3 because only 3 and 1 can go into it. 2 and 5 and 7 is also a prime number.
Answer:
x = 1
y = -24
Step-by-step explanation:
8x + y = -16
-3x + y = -5
Subtract equation one from equation two
8x - -3x + y - y = -16 - - 5
8x + 3x = -16 + 5
11x = 11
Divide both sides by 11
11x/11 = 11/11
x = 1
Now substitute 1 for x in either of the equations to get y.
Using equation one, we have
8x + y = -16
8 x 1 + y = -16
8 + y = -16
Subtract 8 from both sides
8 - 8 + y = -16 - 8
y = -24
x = 1
y = -24
