First one:
Height of plants (attribute)
Inches (unit of measurement)
Ruler? (means of measuring)
10 (# of observations)
Second one:
Weight of dogs (attribute)
Pounds (unit of measurement)
Scale? (means of measuring)
8 (# of observations)
Answer:
X=2, Y=-15
Step-by-step explanation:
-7x+y=-19
-2x+3y=-19
------------------
-3(-7x+y)=-19
-2x+3y=-19
---------------------
21x-3y=57
-2x+3y=-19
---------------------
19x = 38
19x/19=38/19
x=2
now plug 2 into x of the second equation to get y=-15
The lateral area would be 298.7 cm².
The lateral area is the area of all of the lateral faces of the pyramid. There are 8 triangles making up the lateral faces. Each has a base of 6.6. The formula for the area of a triangle is
A=1/2bh,
so we still need the height of the triangle.
The height of each lateral triangle is the slant height of the pyramid. The slant height of the pyramid forms a right triangle with the height of the pyramid and the "radius" as it were of the pyramid. Thus we use the Pythagorean theorem:
8²+8²=h²
64+64=h²
128=h²
√128=√(h²)
8√2 = h
Substituting this into our area formula we have:
A=1/2(6.6)(8√2)
We will go ahead and multiply this by 8, since there are 8 lateral faces:
LA=8(1/2)(6.6)(8√2)
LA = 298.7
Answer:
Slope is undefined.
Step-by-step explanation:
Answer:
1)
×
2) .00632
Step-by-step explanation:
1.Which of the following is equivalent to 0.00451?
= 
=
=
= ×
Therefore the answer is (a)
===================================================================
Which of the following is equivalent to 6.32 x 10-*3?
In order to find the answer to this question you can just put the notation into standard form which means they will be equivalent to each other.
The exponent is negative so you move to the left:
=
Therefore 6.32*10^-3 is equivalent too (c) .00632
