Find The Solution set and draw a number line of each quad inequality

Mathematics

1 answer:

Firdavs [7]2 years ago

5 0

Answer:

i do not know

Step-by-step explanation:

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Sean earned $31,000 last year. if the first $25,000 is taxed at 9% and income above is taxed at 15%, how much does sean owe in t

vlada-n [284]

$3150 because 9% of $25000 is $2250 and 15% of $6000 is 900 and 2250+ 900 is 3150

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2 years ago

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In the parabola y=(x+1)^2+2

Svet_ta [14]

Direction: Opens Up

Vertex: (1,2)

Focus: (1, 9/4)

Axis of Symmetry: x = 1

Directrix: y = 7/4

3 0

3 years ago

Use the given information to find the unknown value:y varies directly as the square of z. When x = 2, then y= 20. Find y when 2

Vladimir79 [104]

Answer

y = 45 when x = 3

Step-by-step explanation:

$\begin{gathered} \text{Given that y varies directly as the square of x} \\ \text{This implies that there is a positive relationship betwe}en\text{ y and the square of z} \\ \text{Mathematically, this can be expressed as} \\ y\text{ }\propto x^2 \\ To\text{ turn this expression into an equation, we n}eed\text{ to introduce a proportionality constant k} \\ y=kx^2 \\ \text{ According to the question, y = 20 and x = 2} \\ \text{From the above informaion we can find our k} \\ y=kx^2 \\ 20\text{ = k }\cdot2^2 \\ 20\text{ = k }\cdot\text{ 4} \\ \text{Divide both sides by 4} \\ \frac{20}{4}\text{ = }\frac{k\cdot\text{ 4}}{4} \\ k\text{ = 5} \\ \text{ Find y when }x\text{ = 3} \\ y=kx^2 \\ y\text{ = 5 }\cdot(3)^2 \\ y\text{ = 5 }\cdot\text{ 9} \\ y\text{ = 45} \end{gathered}$

8 0

1 year ago

How do you solve:<br> 4x +3y=8<br> 2x-18y=4

rosijanka [135]

Hey friend here is your answer

5 0

3 years ago

Help please it’s algebra

amid [387]

Answer:

I'm not sure, but I think they spend 2$ for each

Step-by-step explanation:

The total items they buyed was 45. The total amount of money they spend was 95. 95 divided by 45 is 2.111111111111111111111 . So if you find 2 as one of your options, that's probably it.

8 0

2 years ago