Answer:
7x4+2x3-4x2-5
Step-by-step explanation:
We will start solving this question by opening the bracket first
So let's solve
(7x4+2x3-3)-(4x2-9x+2)
7x4+2x3-3-4x2+9x-2
Collect like terms
7x4+2x3-4x2-3-2
7x4+2x3-4x2-5
So the final answer is 7x4+2x3-4x2-5
This is an equilateral triangle because all the sides are the same length shown by the tic marks. This means that the angles are also all congruent. so...
S=T=R this also means that all angles are 60 degrees because all triangles angles added together are 180 degrees. so that means that you put all of the equations equal to 60. but if u are looking for x only here is the answer
7x+4=60
7x=56
x=8
Answer:
the figure on the top left
Step-by-step explanation:
Hey There!
If figure a was going to be dilated by a scale factor of 3 you would have to multiply all of its dimensions by 3
the top length would be 6
the bottom length would be 9
the right side length would be 12
and the left side length would be 9
The first figure has all of these dimensions thus it is correct answer
The prism has 6 faces.
Each pair of opposite faces is congruent.
The front and back faces are rectangles that measure 10 cm by 5 cm.
The right and left faces are rectangles that measure 5 cm by 3 cm.
The top and bottom faces are rectangles that measure 10 cm by 3 cm.
Now we find the area of each rectangle.
The front and back faces are rectangles that measure 10 cm by 5 cm.
Each face:
A = 10 cm * 5 cm + 50 cm^2
The right and left faces are rectangles that measure 5 cm by 3 cm.
Each face:
A = 5 cm * 3 cm = 15 cm^2
The top and bottom faces are rectangles that measure 10 cm by 3 cm.
Each face:
A = 10 cm * 3 cm = 30 cm^2
There are two faces shaped like each rectangle above, so we multiply each rectangle's area by 2, and we add them together.
total surface area = 2 * 50 cm^2 + 2 * 15 cm^2 + 2 * 30 cm^2
total surface area = 100 cm^2 + 30 cm^2 + 60 cm^2
total surface area = 190 cm^2
8.000.000 = 800 ten thousands
hope helped
