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4 years ago

If two _ intersect, then their intersection is a _

Mathematics

2 answers:

Rudiy274 years ago

5 0

Answer:

Step-by-step explanation:

Given are some fill in the blanks.

The answer would be

If two _planes__ intersect, then their intersection is a _line__

Space contains at least _four__ points not all in one _plane__

Through any _two__ different points, exactly one _line__ exists.

Through any _three__ points that are not on one line, exactly one _plane__ exists.

Ket [755]4 years ago

3 0

1. planes, a line
2. 4, plane
3. two, line
4. two, line

(i think four is wrong, tell me if it is)

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The function y=6+1.25x can be used to find the cost of joining an online music club and buying x songs. Which statement is true

krok68 [10]

B) Is the correct answer

We know it's B because it's a one off cost and isn't effected by x ( the amount of songs purchased )

4 0

4 years ago

The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by: P(x)=-12x^2 +12

Minchanka [31]

Given:

The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by:

$P(x)=-12x^2+120x$

To find:

The current that will produce the maximum power.

Solution:

We have,

$P(x)=-12x^2+120x$

Here, leading coefficient is negative. So, it is a downward parabola.

Vertex of a downward parabola is the point of maxima.

If a parabola is $f(x)=ax^2+bx+c$ , then

$Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)$

In the given function, a=-12 and b=120. So,

$-\dfrac{b}{2a}=-\dfrac{120}{2(-12)}$

$-\dfrac{b}{2a}=-\dfrac{120}{-24}$

$-\dfrac{b}{2a}=5$

Putting x=5 in the given function, we get

$P(5)=-12(5)^2+120(5)$

$P(5)=-12(25)+600$

$P(5)=-300+600$

$P(5)=300$

Therefore, 5 watt current will produce the maximum power of 300 amperes.

6 0

3 years ago

Can someone help me please?

Rashid [163]

Idk your best bet is to look it up online thats what i do often

8 0

3 years ago

I need help ASAP PLEASEEEEEEEE

Lorico [155]

Answer:

g has an average rate of change of zero at the intervals [-5,4] and [-2,2]

Step-by-step explanation:

When we talk of the average rate of change, we mean the change in y values divided by the change in x values

Once the change in y-values is zero, then over that interval, the average rate of change is zero

at the point t =- 5, g(t) = 6; at the point t = 4, g(t) = 6

As we can see here, within the interval [-5,4]; the average rate of change is 0

This same pattern is repetitive at points or ranges where we have same values for g(t)

such as;

[-2,2]

5 0

3 years ago

Daniela painted a photo that was 4/5 afoot by 1 7/8 of afoot. What was the area?

Ahat [919]

Answer:

$\frac{3}{2}$ square feet

Step-by-step explanation:

The dimensions of the photo is 4/5 by 1 7/8 of a foot.

But,

1 7/8 = $\frac{15}{8}$ feet

So that,

length of the photo = $\frac{15}{8}$ feet

width of the photo = $\frac{4}{5}$ feet

The area of the photo = length x width

= $\frac{15}{8}$ x $\frac{4}{5}$

= $\frac{60}{40}$

= $\frac{3}{2}$

Area of the painted photo is $\frac{3}{2}$ square feet.

8 0

3 years ago

If two ___ intersect, then their intersection is a ___

If two _ intersect, then their intersection is a _