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2 years ago

I need I will most definitely mark brain-iest ?!

Mathematics

2 answers:

Alex17521 [72]2 years ago

6 0

First one should be 22

3241004551 [841]2 years ago

5 0

Answer:

The very first one is 22

Step-by-step explanation:

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Plz help and explain ty

mel-nik [20]

4x = 8, so x = 2
5y + 4 = 4, so 5y = 0, so y = 0
(2,0)

8 0

3 years ago

if <img src="https://tex.z-dn.net/?f=h%28x%29%3D4x%5E%7B2%7D%20-16" id="TexFormula1" title="h(x)=4x^{2} -16" alt="h(x)=4x^{2} -1

spayn [35]

Ummmmmmmmmmmm theeeee answerrrrrr isssssss 11,13

4 0

3 years ago

How many solutions does this linear system have?

Talja [164]

The answer would be A: -2.5, 0

4 0

2 years ago

One brand of vinegar has a pH of 4.5. Another brand has a pH of 5.0. The equation for the pH of a substance is pH = –log[H+], wh

kiruha [24]

Answer:

2.16 * (10^-5).

Step-by-step explanation:

5 = -log H+

5 = log (1 / H+)

1/ H+ = 10^5

H+ = 10^-5

In a similar fashion the other brand has H+ of 10^-4.5.

So the difference in hydrogen ion concentration = 10^(-4.5) - 10^(-5)

= 2.16 * (10^-5).

4 0

3 years ago

Read 2 more answers

Suppose you are the manager of a firm. The accounting department has provided cost estimates, and the sales department sales e

Katarina [22]

Answer:

<em>If more than 134 articles are produced and sold, the firm will have positive profits and shoule start production</em>

Step-by-step explanation:

Cost, Revenue, and Profit Function

The cost function C(x) is given by

$C(x)=75x+3,350$

where x is the number of produced products.

The revenue function is

$R(x)=100x$

With both equations, we can know the profit function as

$P(x)=R(x)-C(x)$

$P(x)=100x-75x-3,350=25x-3,350$

$P(x)=25x-3,350$

For the firm to have positive profits, it has to produce x articles with the condition

$P(x)>0$

Or, equivalently

$P(x)=25x-3,350>0$

Solving for x

$\displaystyle x>\frac{3,350}{25}$

Thus

$x>134$

This means that if more than 134 articles are produced and sold, the firm will have positive profits and shoule start production

6 0

3 years ago