The Burj Khalifa, a building in Dubai, United Arab Emirates, is about 828 meters tall. Brody is making a scale model of this building, using the scale 500 meters : 1 meter.
Answer:
The surface area of square pyramid is 953.64 cm² .
Step-by-step explanation:
Given as for a square pyramid :
The height of pyramid = l = 15 cm
The base of square pyramid = x = 18 cm
Now,
The surface area of square Pyramid = 
or , The surface area of square Pyramid = 
Or, The surface area of square Pyramid = 
Or, The surface area of square Pyramid = 324 + 36 × 
or, The surface area of square Pyramid = 324 + 36 × 17.49
Or , The surface area of square Pyramid = 324 + 629.64 = 953.64 cm²
Hence The surface area of square pyramid is 953.64 cm² . Answer
Answer:
$184.72
Step-by-step explanation:
$71.70/3 = $23.09
$23.09*8=$184.72
To solve this problem, we need to multiply 2/3 by 3 1/2. We do this because we are making the recipe 3 1/2 times, which means we need the amount of milk for one recipe multiplied by the amount of times you are completing the recipe. To multiply these two numbers, we first need to convert 3 1/2 to an improper fraction. To do this, we multiply the denominator by the whole number and add the numerator, while keeping the same denominator. This is modeled below:
3 1/2 = (2*3 + 1)/2 = (6+1)/2 = 7/2
Now that we have this information, we can multiply our fractions together by simply multiplying the numerators and denominators together (straight across).
2/3 * 7/2 = (2*7)/(3*2) = 14/6
To simplify this fraction, we need to divide both the numerator and the denominator by the GCF, or greatest common factor, of the two numbers. The greatest common factor is 2.
(14/2) / (6/2) = 7/3
To convert this fraction into a mixed number, we must divide, and make the remainder into a fraction.
7/3 = 2 r 1 = 2 1/3
Therefore, your answer is 2 1/3 cups of milk.
Hope this helps!
Answer:
and
Step-by-step explanation:
We have to solve the given equation - 2x² + 3x - 9 = 0
To solve the equation given above we have to factorize the left-hand side of the equation.
But it can not be factorized. So, use the Sridhar Achaya formula.
Therefore,
and
So,
and
{Where
}
Therefore, the solutions are imaginary numbers. (Answer)
Note: The Sridhar Acharya Formula gives if ax² + bx + c = 0, then the roots of the equation are
and
.