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Leni [432]
3 years ago
15

True or false; If two planes cross one another, then their intersection is two lines.

Mathematics
2 answers:
kifflom [539]3 years ago
8 0
Hey There!

The answer would be true, because if your planes are not parallel, they're eventually going to meet and intersect.

Hope this helps!
Vlad1618 [11]3 years ago
5 0
If they intersect eachother then the answer is true
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Please help me with these problems
S_A_V [24]

Answer:

1.a=2

2.  C  x=2  and x=-3

Step-by-step explanation:

The standard form for the quadratic function is  

ax^2 +bx+c

so  we need to rewrite the function to be in this form

2x^2 -10 = 7x

Subtract 7x from each side

2x^2 -7x-10 = 7x-7x

2x^2 -7x-10 = 0

a =2, b= -7  c=-10


2.  The quadratic formula is

-b ± sqrt(b^2 -4ac)

----------------------------

2a


2x^2 + 2x=12

Lest get the equation in proper form

2x^2 + 2x-12 = 12-12

2x^2 +2x-12 =0

a=2  b=2 c=-12

Lets substitute what we know

-2 ± sqrt(2^2 -4(2)(-12))

----------------------------

2(2)

-2 ± sqrt(4+96)

----------------------------

2(2)

-2 ± sqrt(100)

----------------------------

4

-2 ± 10

----------------------------

4

-2 + 10               -2-10

-----------   and  --------------

4                             4

8/4   and -12/4

2  and -3

8 0
3 years ago
Helppppp please!! :/
Elan Coil [88]
It's 3.00 boom son gghjjj
6 0
3 years ago
Use the graph of f(x) = log x to obtain the graph of g(x) = log x + 5.
galina1969 [7]

The graph of g(x) = f(x) + 5 will have the graph of f(x) moved 5 units upward. The best choice is the last one.

_____

Adding 5 to each y-value (the output of f(x)) moves it upward by 5 units.

8 0
3 years ago
Read 2 more answers
Lea and Marie are washing all the windows in their house. It would take Lea 80 minutes to wash the windows by herself, and it wo
Kitty [74]
<span>The missing value that represents the rate for Marie is 1/60. As mentioned in the table, rate (r) is the part (p) per minute (t). Let's check if it works for Lea. If p = 1/80t, then r = (1/80t)/t = 1/80 * t/t = 1/80 * 1 = 1/80. So, the formula works. Now, calculate the rate for Marie. If p = 1/60t, then r = (1/60t)/t = 1/60 * t/t = 1/60 * 1 = 1/60</span>
7 0
3 years ago
Read 2 more answers
How do i solve this?
Kryger [21]
The answer is -.0028571429
1/5a+1=3/10
-1 -1
1/5a=-.7. -.7 as a fraction is -7/10
1/5a divide -7/10
= -.0028571429

5 0
3 years ago
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