3 years ago

PLEASE HELP ME ASAP!!

Mathematics

1 answer:

mote1985 [20]3 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Element U has a half life of T billion years. Find the half life of this element if 1/6 of the original amount is left after 11.

olga2289 [7]

Answer:

Step-by-step explanation:

Thick

7 0

4 years ago

I need help i dont know the answers

Arlecino [84]

Answer: Change the number: 36

To:48

Step-by-step explanation:

12x2 is 24 but 24 x 2 isn’t 36

5 0

3 years ago

Simplify. Write your answer using whole numbers and variables.

Andre45 [30]

Answer:

q + 7

Step-by-step explanation:

(q² + 4q − 21) / (q − 3)

Factor the numerator:

(q + 7) (q − 3) / (q − 3)

Divide:

q + 7

5 0

4 years ago

Find the measurement of the inscribed angle CDB indicated below

laiz [17]

I believe the correct answer is 45
Correct me if I’m wrong

8 0

3 years ago

Find the equation of the plane passing through the points

erica [24]

Extract the normal vectors from the given planes:

$-2x+y+z+2=0\implies\vec n_1=(-2,1,1)$

$x+y-3z+1=0\implies\vec n_2=(1,1,-3)$

(which are unique up to their signs, meaning either $\vec n_1$ or $-\vec n_1$ are valid choices for the normal vector)

The third plane must be perpendicular to both these given planes, which means it would be parallel to both $\vec n_1$ and $\vec n_2$ , which in turn means its own normal vector $\vec n_3$ should be perpendicular to both $\vec n_1$ and $\vec n_2$ .

Enter the cross product:

$\vec n_3=\vec n_1\times\vec n_2=(-4,-5,-3)$

or (4, 5, 3), which also works.

The given plane passes through (-1, 1, 4), so its equation is

$(x+1,y-1,z-4)\cdot\vec n_3=0$

Simplify:

$(x+1,y-1,z-4)\cdot(4,5,3)=0$

$4(x+1)+5(y-1)+3(z-4)=0$

$\boxed{4x+5y+3z=13}$

3 0

3 years ago