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Alexeev081 [22]
3 years ago
11

For which inequality would x = 8 not be a solution?

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Put the value of x to the inequality:

4x+3 > 0\\L=4(8)+3=32+3=35;\qquad R=0;\qquad L > R\ CORRECT\\\\9x-5 < 100\\L=5(8)-5=40-5=35;\qquad R=100;\qquad 35 < 100\ CORRECT\\\\x+4\leq10\\L=8+4=12;\qquad R=10;\qquad 12 > 10\ INCORECT (\leq)\\\\72\div x\geq4\\L=72\div 8=9;\qquad R=4;\qquad 9\geq4\ CORRECT

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for every cookie dough tub that she sells, Maggie earns $6.50 for her cheer team. if she earned $169 last month, how many tubs d
Usimov [2.4K]

Answer:

26

Step-by-step explanation:

169 divided by 6.50 will be 26.

Good luck :)

6 0
3 years ago
Read 2 more answers
In the year 2000, the average cost of a computer could be modeled by the equation C = -5t2 + 750, where t is the number of years
elena55 [62]

Answer:

\Delta C=-5t^2-250

Step-by-step explanation:

Given:

The average cost of a computer in the year 2000 is given as:

C=-5t^2+750

The average cost of a computer in the year 2008 is given as:

C=-10t^2+500

Now, the difference in average cost between the years 2008 and 2000 can be calculated by subtracting the average cost in 2000 from the average cost in 2008.

Framing in equation form, we get:

Difference in average cost (ΔC) is given as:

\Delta C=C_{2008}-C_{2000}\\\\\Delta C= (-10t^2+500)-(-5t^2+750)\\\\\textrm{Distributing the megative sign inside the second polynomial, we get:}\\\\\Delta C=-10t^2+500+5t^2-750\\\\\textrm{Grouping like terms, we get}\\\\\Delta C=(-10t^2+5t^2)+(500-750)\\\\\Delta C=-5t^2-250

Therefore, the difference in the costs for a computer between 2008 and 2000 is \Delta C=-5t^2-250

7 0
3 years ago
Suppose that the function LaTeX: f(x) f ( x ) is shifted horizontally to the right by LaTeX: a a , reflected across the LaTeX: x
Sveta_85 [38]

Answer:

g(x) = (x-a,-y - b)

Step-by-step explanation:

Given

Represent f(x) as follows:

f(x) = (x,y)

Transformations:

Horizontally shifted right by a

Reflected across x axis

Vertically shifted down by b

Taking the transformations one after the other.

Horizontally shifted right by a

When a function is shifted right, the resulting function is:

f' = (x-a,y)

Reflected across x axis

Here, the x axis remains unaltered while the y axis is negated

f' = (x-a,y)

becomes

f" = (x-a,-y)

Vertically shifted down by b

When a function is shifted down by b, the resulting function is:

f"' = f" - b

i.e, subtract b from the function (f(x) or y, as the case may be)

So, we have:

f"'  = (x-a,-y - b)

Represent f"' with g(x)

g(x) = (x-a,-y - b)

3 0
3 years ago
What’s the sum of interior angles of a 45-gon?
Mashutka [201]

Answer:

Step-by-step explanation:

As each exterior angle is 45o , number of angles or sides of the polygon is 360o45o=8 . Further as each exterior angle is 45o , each interior angle is 180o−45o=135o .

7 0
3 years ago
Use the elimination method to solve the system of equations. Choose the correct ordered pair. 
kiruha [24]
5x+3y=58
5x-3y=22
(3y gets cancelled bc 3y-3y=0,  then add 5x with 5x, so you're left with)
10x=80, (divide both sides by 10)
x=8
Now we look for y. So choose one formula from the two (let's say 5x + 3y=58)
Substitute x for 8 so it will look like---- 5(8)+3y=58
Multiply 5*8--- so you get --  40+3y=58
Subtract 40 from both sides and you're left with 3y=18
divide both sides by 3
you get y=6
In conclusion, x=8 and y=6 hence, (8,6)


5 0
3 years ago
Read 2 more answers
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