3 years ago

Figure ZANY is a square. If ZY = 7x - 3 and ZA = 6x, what is the value of x

Mathematics

1 answer:

SpyIntel [72]3 years ago

6 0

7x-3=6x
x=3
..........

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1 pt) If a parametric surface given by r1(u,v)=f(u,v)i+g(u,v)j+h(u,v)k and −4≤u≤4,−4≤v≤4, has surface area equal to 1, what is t

natta225 [31]

The area of the surface given by $\vec r_1(u,v)$ is 1. In terms of a surface integral, we have

$1=\displaystyle\int_{-4}^4\int_{-4}^4\left\|\frac{\partial\vec r_1(u,v)}{\partial u}\times\frac{\partial\vec r_1(u,v)}{\partial v}\right\|\,\mathrm du\,\mathrm dv$

By multiplying each component in $\vec r_1$ by 5, we have

$\dfrac{\partial\vec r_2(u,v)}{\partial u}=5\dfrac{\partial\vec r_1(u,v)}{\partial u}$

and the same goes for the derivative with respect to $v$ . Then the area of the surface given by $\vec r_2(u,v)$ is

$\displaystyle\int_{-4}^4\int_{-4}^425\left\|\frac{\partial\vec r_1(u,v)}{\partial u}\times\frac{\partial\vec r_1(u,v)}{\partial v}\right\|\,\mathrm du\,\mathrm dv=\boxed{25}$

8 0

3 years ago

HELP!!!

AfilCa [17]

1.
-x = 2 - 3x + 6
-x + 3x = 8
2x = 8
x = 8/2
x = 4

2.
Step 1: 2(3x − 4) = 8 + 2x + 4
Step 2: 5x − 6 = 12 + 2x ← wrong
The correct step: Step 2: 6x − 8 = 12 + 2x

3.
The next step is 2m = 8

3 0

3 years ago

Read 2 more answers

What is the y intercept for the equation: y = -8x^2 + 3x - 7

slega [8]

Answer:

The y intercept for the equation is (0,-7)

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3 years ago

Please help down below.

Taya2010 [7]

Answer:

1.) four and six hundredths

4+.06

2) 5.2 5+.2

3. six and eighty nine hundredths

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3 years ago

Pythagorean triples are super important to know. If the hypotenuse of a triangle is 15, what are its legs ( hint - use the three

Triss [41]

Answer:

9, 12

Step-by-step explanation:

Just multiply the 3,4,5 triple by 3 and u get 9, 12, 15

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3 years ago