Answer:
625 unit²
Step-by-step explanation:
Surface area of a rectangular pyramid :
Area of base * 4(area of triangular side)
Area of base = length * width
Area of base = 15 * 15 = 225
Height of triangular side = 15
Area of triangle = 1/2 * base * height
Area of triangle = 1/2 *15 * 15 = 112.5 unit²
Surface area = 225 + 4(112.5)
Surface Area = 225 + 450
Surface Area = 625 unit²
The perimeter of a shape is the sum of its side lengths
Becca, Lucas, and Christian are correct
<h3>How to determine the correct perimeter</h3>
The side lengths of the triangle are x, 3x - 4 and 3x - 4
So, the perimeter (P) is:
P = x + 3x - 4 + 3x - 4
The above equation can be rewritten as:
P =2(3x - 4) + x
P = 6x + x - 4
P = (3x - 4) + (3x - 4) + x
P = 7x - 4
Hence, Becca, Lucas, and Christian are correct
Read more about perimeter at:
brainly.com/question/17297081
<span>The given number is a decimal which is a repeating
decimals.
=> 8.63 or 8.6333, because it says that is has a 3 repeating decimals.
to convert this into a fraction, simply know the place value of the decimal and
divide it with its value
=> 8.63 has 2 digits after the decimal points , so that has a hundredths
value
=> 863/100
=> 8 63/100, now a mixed number where 8 is the whole number and 63/100 is
the fraction.
=> 8.6333 has 4 digits after the decimal points, so that’s ten thousands
value
=> 86 333/10 000
=> 8 6333/10 000, the same value as the other.
</span>
Answer:
(x -2)² +(y +3)² = 6
Step-by-step explanation:
Put the given numbers into the given formula and simplify. h = 2, k = -3.
(x -2)² +(y -(-3))² = (√6)²
(x -2)² +(y +3)² = 6
7.6x = 64
x = 64/7.6
x =
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<span>
<span>
8.4210526316
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</span>
So, 3.05 is NOT the solution