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4 years ago

HELP BRAINLIEST!!

Mathematics

2 answers:

Phoenix [80]4 years ago

7 0

Answer:

B) Right angles are congruent

vlabodo [156]4 years ago

4 0

Answer: B) Right angles are congruent

This is another way of saying "all 90 degrees are the same measure". The square angle marker indicates a right or 90 degree angle.

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At what point on the paraboloid y = x2 + z2 is the tangent plane parallel to the plane 3x + 2y + 7z = 2? (if an answer does not

Nikitich [7]

If $f(x, y, z) = c$ represent a family of surfaces for different values of the constant $c$ . The gradient of the function $f$ defined as $\nabla f$ is a vector normal to the surface $f(x, y, z) = c$ .

Given the paraboloid

$y = x^2 + z^2$ .

We can rewrite it as a scalar value function f as follows:

$f(x,y,z)=x^2-y+z^2=0$

The normal to the paraboloid at any point is given by:

$\nabla f= i\frac{\partial}{\partial x}(x^2-y+z^2) - j\frac{\partial}{\partial y}(x^2-y+z^2) + k\frac{\partial}{\partial z}(x^2-y+z^2) \\ \\ =2xi-j+2zk$

Also, the normal to the given plane $3x + 2y + 7z = 2$ is given by:

$3i+2j+7k$

Equating the two normal vectors, we have:

$2x=3\Rightarrow x= \frac{3}{2} \\ \\ -1=2 \\ \\ 2z=7\Rightarrow z= \frac{7}{2}$

Since, -1 = 2 is not possible, therefore there exist no such point on the paraboloid $y = x^2 + z^2$ such that the tangent plane is parallel to the plane 3x + 2y + 7z = 2.

4 0

4 years ago

12^2 - 6^2 equals what

allsm [11]

Answer:

112

Step-by-step explanation:

12 square= 144

6 squared =36

144-36=112

8 0

3 years ago

Read 2 more answers

Draw quick pictures to show the number 326

denpristay [2]

Heres how u make 3 large boxes to show 3 hundreths 2 skinny rectangles to show 2 tens and 6 lil boxes to show 6 ones all together youve got 326!

8 0

4 years ago

Two fair number cubes are rolled. State whether the events are mutually exclusive. Explain your reasoning.

liubo4ka [24]

The answer is B because if you think about it for example if the number is 4 and 4 it would give you 8 but that’s even and if you take 3 and 3 will give you 6 also another even so if you have the same two number you can always divide it by two
Hope this helps

7 0

3 years ago

840,007 rounded to the nearest thousand

blondinia [14]

Answer:

840,000

If it was 500 or more, it would be 841,000.

But since it is below 500, it is 840,000.

Hope it helps!

5 0

3 years ago

Read 2 more answers