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Brut [27]
3 years ago
7

Solve each compound inequality and graph the solution.

Mathematics
1 answer:
Vlada [557]3 years ago
4 0
1) x > -4 and x <span>< 2

2) x </span>> 4 and x <span><8</span>
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The value of y varies directly with x and y=12 when x=-6 find y when x=-4
FinnZ [79.3K]

Answer:

B)8

Step-by-step explanation:

That is the right answer because when y=12,  x=-6

12/-6 = -2

This means that x = y/-2

or y = x * -2

-4 * -2 = 8

Hope I helped

8 0
3 years ago
Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3
iren2701 [21]
Ok to start you have to put


2+-1/9 - 4+-1/3

 what exactly is the question because without the proper info. nobody is going to be able to figure it out.
5 0
3 years ago
Read 2 more answers
Brainliest ! 40 points , pls answer all or don't answer
MAVERICK [17]

Answer:

The answer to your question is below

Step-by-step explanation:

1.- Find the volume of the cylinder

Data

diameter = 9 cm

radius = 4.5 cm

height = 15 cm

Formula

   V = πr²h

   V = π(4.5)²(15)

  V = 303.75π         This is te answer for the volume in terms of π

       = 952.78 cm³                

2.- Find the volume of the cylinder

height = 40 yd

radius = 12 yd

Formula

   V = πr²h

   V = π(12)²(40)

   V = 5760π              This is te answer for the volume in terms of π

       = 18086.4 cm³

3.- What is the height .......

height = q

side length = r

4.- Volume of a pyramid

    Volume = Area of the base x height

Area of the base = 11 x 11 = 121 cm²

    Volume = 121 x 18

   Volume = 2178 cm³

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to the following?
xeze [42]

Step-by-step explanation:

\sin^{4}x  \:  -  \cos^{4} x = (\sin^{2}x)^{2}  - (\cos^{2}x)^{2}

= (\sin^{2}x)^{2}  - (1 - \sin^{2}x)^{2}

= \sin^{4}x - (1 - 2\sin^{2}x + \sin^{4}x)

= 2\sin^{2}x - 1

=  - \cos2x

Note: I used the identity

{ \sin }^{2} x =  \frac{1}{2} (1 -  \cos \: 2x)

for the last step.

PS. I love proving trigonometric identities!

3 0
3 years ago
Find the missing sides.<br> (Help me)
slavikrds [6]

Answer:

2nd one

Step-by-step explanation:

when it's a 45 45 and 90 triangle, it's 1, 1, sqrt 2, but now since the 1 is sqrt 2, v is sqrt 2, and u and sqrt 2 times sqrt 2, which is 2

3 0
3 years ago
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