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Digiron [165]
3 years ago
7

Calculate the area of quadrilateral ABCD state the units of your answer .

Mathematics
2 answers:
Zarrin [17]3 years ago
4 0

Answer:158.76 cm^2

Step-by-step explanation:

Helen [10]3 years ago
3 0

Answer:

158.76 cm^2

Step-by-step explanation:

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Consider the surface f (x comma y comma z )f(x,y,z)equals=negative 2 x squared plus 2 y squared minus 3 z squared plus 3 equals
trapecia [35]

Answer:

a) (8,8,-6)

b) 4x+4y+3z = -3

Step-by-step explanation:

a)

The surface is given by the equation  

f(x,y,z) = 0 where

f(x,y,z)=-2x^2+2y^2-3z^2+3

The gradient of this function is the vector

(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y},\frac{\partial f}{\partial z})=(-4x,4y,-6z)

If we evaluate it in the point P = (-2,2,1) we obtain the point

(8,8,-6)

b)

The vectors with their tails at P are of the form  

(-2,2,1)-(x,y,z) = (-2-x, 2-y, 1-z)

as they must be orthogonal to the gradient, they must be orthogonal to the vector (8,8,6) so their inner product is 0

(-2-x,2-y,1-z)\cdot(8,8,6)=0\Rightarrow -16-8x+16-8y+6-6z=0\Rightarrow 4x+4y+3z=-3

and the equation of the desired plane is

4x+4y+3z = -3

3 0
3 years ago
Find the value of each trigonometric ratio. 18) cos X Y 24 24 25 24 A) C) 25 B) D) 24 25 25​
irina [24]

Answer:

Step-by-step explanation:

3 0
2 years ago
Add 5/8 inch, 11/16 inch, and 27/32 inch.
noname [10]
Hi,

Work:

Equation;

\frac{5}{8} + \frac{11}{16} + \frac{27}{32}

Write all numerators above the least common denominator 32.

\frac{5 + 11 + 27}{32}

Calculate the sum of positive numbers.

\frac{69}{32}

Simplify (FRACTION RESULT)

2 \frac{5}{32}

Or (DECIMAL RESULT)

2.15625

Hope this helps.
r3t40
6 0
3 years ago
Read 2 more answers
The sum of a number times 4 and 18 is at least 25
dmitriy555 [2]
Divide each term by 4+8 and simplify.
x<span>≥25/12

</span>
5 0
3 years ago
suppose you invest $700 in a savings account that pays 4.2% annual interest compounded continuously. how much money will be in t
Elina [12.6K]

Answer:

847

Step-by-step explanation:

700 ÷100 = 7

7× 4.2 = 29.4

29.4×5 =147

500+147

7 0
3 years ago
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