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3 years ago

Which inequality is equivalent to 8 < 3x – 4(2x – 5)?

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

5 0

8<-5x+20 is one possible answer. it depends on how they are writing it. you need to do the distributed property.

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Parallel line geometry

Igoryamba

<h3>Answer: Angle 1 is 80 degrees</h3>

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Explanation:

See the diagram below. I've extended one of the rays to form a full line. This is shown in red. The alternate interior angles 60 and x are congruent due to the parallel lines, so x = 60.

We can then find angle y

x+y+20 = 180 ... angles of a triangle add to 180

60+y+20 = 180

y+80 = 180

y = 180-80

y = 100

Use this to find z

y+z = 180

100+z = 180

z = 180-100

z = 80

Or you could use the remote interior angle theorem

x+20 = z

60+20 = z

80 = z

z = 80

5 0

3 years ago

Find the sine r 13 12 5

Neporo4naja [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

Solve each equation 3x+2(5x-3)=7

Sloan [31]

Answer:

Step-by-step explanation:

Step 1:

3x + 2 ( 5x - 3 ) = 7

Step 2:

3x + 10x - 6 = 7

Step 3:

13x - 6 = 7

Step 4:

13x = 13

Answer:

x = 1

Hope This Helps :)

7 0

3 years ago

Write y=2x^2-12x+16 in vertex form

leva [86]

Answer:

y = 2 $(x - 3)^{2}$ - 1

Step-by-step explanation:

y = 2 $x^{2}$ - 12x + 16

y = 2( $x^{2}$ - 6x + 8) ( Factor out 2 )

y + 9= 2( $x^{2}$ - 6x + 9) + 8 ( Complete the square $(\frac{-b}{2} )^{2}$ ) Add 9 both sides

y + 9 = 2 $(x - 3)^{2}$ + 8 (Subtract 9 each side)

y = 2 $(x - 3) ^{2}$ - 1 ( simplify )

8 0

3 years ago

ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are

anygoal [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

$\frac{x}{y}=\frac{5}{3}$

see the model in the attached figure N 1

$y=\frac{3}{5}x$

$y=0.60x$

This is the equation of a linear direct variation

The relationship between the variables x and y is proportional

see the model in the attached figure N 2

4 0

3 years ago