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3 years ago

Which of the following has a solution set of {x | x = 0}?

Mathematics

2 answers:

Burka [1]3 years ago

8 0

It is B
(x+1<1)this mark(x+1>1)

Olenka [21]3 years ago

3 0

B, since by subtracting one from both sides of both equations, you get x <= 0 and x >= 0. That is only true for x = 0.

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What is the equation of this line in standard form? 8x−7y=−25 8x−9y=23 8x−9y=−23 9x−8y=23 Number graph ranging from negative fiv

Gnoma [55]

Answer:

The equation of line is:

$8x-9y=-23$

Step-by-step explanation:

We are given that a graph is a that passes through two points:

$(-4,-1)$ and $(\dfrac{1}{2},3)$

We know that the equation of line passing through two points:

$(a,b)$ and $(c,d)$ is given by:

$y-b=\dfrac{d-b}{b-a}\times (x-a)$

Here we have:

$(a,b)=(-4,-1)$ and $(c,d)=(\dfrac{1}{2},3)$

Hence, the equation of line is:

$y-(-1)=\dfrac{3-(-1)}{\dfrac{1}{2}-(-4)}\times (x-(-4))\\\\y+1=\dfrac{3+1}{\dfrac{1}{2}+4}\times (x+4)\\\\y+1=\dfrac{4}{\dfrac{9}{2}}\times (x+4)\\\\y+1=\dfrac{4\times 2}{9}\times (x+4)\\\\y+1=\dfrac{8}{9}\times (x+4)\\\\9\times (y+1)=8\times (x+4)\\\\9y+9=8x+8\times 4\\\\9y+9=8x+32\\\\8x-9y=9-32\\\\8x-9y=-23$

Hence the equation of line is:

$8x-9y=-23$

5 0

2 years ago

Add. (4x2 - 2x) + (5x-7)

Sloan [31]

Answer:

4x²+3x-7 is the answer

Step-by-step explanation:

=(4x²-2x)+(5x-7)

opening brackets

=4x²-2x+5x-7

=4x²+3x-7

i hope this will help you :)

7 0

3 years ago

Rita offers to pay for 8 of her friends to play lazer tag, but 3 of them dont want to pay

Mrac [35]

Answer:

only 5 of her friends will play

Step-by-step explanation:

8-3=5

6 0

3 years ago

Read 2 more answers

Please help me..will give all the good stuff

Anika [276]

1. 14 loaves are needed for 63 customers

2. 90 loaves

3. 4.5 loaf

Step by Step:

9/2= 4.5

4.5x4= 18

27/4.5=6

14x4.5=63

I multiplied and divided everything by 4.5 so one loaf of bread is 4.5.

(Correct me if I'm wrong)

I hope this helped! :)

6 0

2 years ago

Simplify the expression. Show your work. 22 + (3^2 – 4^2)

irga5000 [103]

22 + (3^2 – 4^2)
= 22 + (9 – 16)
= 22 -7
= 15

6 0

3 years ago