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3 years ago

1. How many planes are shown in the figure?

Mathematics

1 answer:

Evgen [1.6K]3 years ago

4 0

Where is the image?

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A)80 B)100 C)120 D)300

natulia [17]

So like my brother did the math but we got something that wasn’t up there lol. but the closest one is 300

5 0

3 years ago

Find the point that partitions line segment AB with

Olegator [25]

Answer:

We have to find point that partition line segment AB with end points (-5,3) (-1,-5) in ratio 1:3

Assume (-5,3) as ( a,b)

Assume (-1,-5) as (c,d)

Assume ratio 1:3 as m:n

Step-by-step explanation:

Remember this formula

Partition point =( mc + na)/m+ n , ( md+ nb)/m+n

=[ (1)(-1)+ 3(-5)]/1+3, ( 1(-5) + 3(3))/1+3

= -1 -15)/4,( -5 + 9)/4

= -16/4, 4/4

= -4, 1

3 0

3 years ago

If sin Θ = 2 over 3 and tan Θ < 0 , what is the value of cos Θ?

Zielflug [23.3K]

$\sin \theta = \dfrac 2 3$

$\tan \theta < 0$

Positive sine, negative tangent, means we have a negative cosine. We're talking about the second quadrant.

$\cos^2 \theta + \sin ^2 \theta = 1$

$\cos^2 \theta = 1 - \sin ^2\theta$

$\cos \theta = \pm \sqrt{1 - \sin ^2\theta}$

We know it's negative,

$\cos \theta = - \sqrt{1 - (2/3)^2} =-\sqrt{5/9} = - \dfrac 1 3 \sqrt{5}$

Answer: -(1/3)√5

4 0

4 years ago

How many solutions does the following equation have ?

Sergio [31]

Answer:Exactly one solution.

Step-by-step explanation:

- 32 +9 – 2x = -12 – 5x

1.Add numbers

-23 - 2x= -12-5x

2.Rearrange terms

-2x - 23 = -12 - 5x

3. Rearrange terms

-2x - 23 = -5x-12

4. Add 23 to both sides of the equation

-2x-23+23= -5x-12+23

5.Simplify

-2x= -5x+11

6.Add 5x to both sides of the equation

-2x+5x=-5x+11+5x

7.Simplify

3x=11

8.Divide both sides of the equation by the same factor

$\frac{3x}{3}$ = $\frac{11}{3}$

9.Simplify and Solution

x= $\frac{11}{3}$

5 0

3 years ago

AB has one endpoint located at A(-2,

Maru [420]

The other endpoint would be (4,1)

8 0

3 years ago