Answer:
x =
Step-by-step explanation:
=> 3+2(2x+8) = 1
=> 3+4x+16 = 1
=> 4x+19 = 1
=> 4x = 1-19
=> 4x = -18
<u><em>Dividing both sides by 4</em></u>
=> x =
=> x =
Answer:
144 sq in
Step-by-step explanation:
Face height=9, bases=6 in
#Assume the pyramid has a square base.
First we need to calculate the perpendicular height of the pyramid:
Now to find the surface area of each pyramid:
Hence amount of construction paper needed to make each pyramid is 144 sq in
Answer:
The value of y in the given equation is B. 30.
Step-by-step explanation:
y = 2x² - 4x x = 5
y = 2(5)² - 4(5) Plug 5 in for x
y = 2(25) - 20 Square 5 and multiply 4 by 5
y = 50 - 20 Multiply 2 by 25
y = 30
Hope this helps,
❤<em>A.W.E.</em><u><em>S.W.A.N.</em></u>❤
What do you mean 89 93 there has to be a symbol between it like + or -
Answer:
The area of the triangle is : 201.5 cm ²
<h2>
Step-by-step explanation:</h2>
All the sides of an equilateral triangle are equal. A triangle has 3 sides. If the perimeter is 78cm, 78 cm needs to be divided by 3 so find each side of the triangle.
78÷3=26
In order to find the area of a triangle, you need to multiply the base by the height and divide the product by 2.
26×15.5=403
403÷2= 201.5
So therefore, The area of the triangle is : 201.5 cm ²