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Lostsunrise [7]
2 years ago
5

What is 4 (3.05) = what dose it equal?

Mathematics
1 answer:
Rus_ich [418]2 years ago
6 0

Answer:

12.2

Step-by-step explanation:

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Two friends are saving money for a new basketball hoop. The first friend has $120 in savings and will save $30 each month. The s
tatyana61 [14]
This is an easy question you shouldn’t have to ask this on here.
6 0
3 years ago
Graph the line <br> Y=-2/3x+2
lianna [129]

Answer: x = 3, y = 2

Step-by-step explanation:

The line should pass through x = 3 and y = 2. Just like in the picture. I used a graphing app.

4 0
2 years ago
How many solutions does the equation −2y + 2y + 3 = 3 have?
Kay [80]

The given equation is -2y+2y+3=3

By solving the given equation, we get

0\times y=0

0=0

While solving the equation,we get 0=0.

Therefore, the given equation is true for all the values of y.

Hence, we can say that the given equation has infinite number of solutions.

7 0
3 years ago
Read 2 more answers
For what value of c is the function defined below continuous on (-\infty,\infty)?
kozerog [31]
f(x)= \left \{ {{x^2-c^2,x \ \textless \  4} \atop {cx+20},x \geq 4} \right&#10;

It's clear that for x not equal to 4 this function is continuous. So the only question is what happens at 4.
<span>A function, f, is continuous at x = 4 if 
</span><span>\lim_{x \rightarrow 4} \  f(x) = f(4)

</span><span>In notation we write respectively
</span>\lim_{x \rightarrow 4-} f(x) \ \ \ \text{ and } \ \ \ \lim_{x \rightarrow 4+} f(x)

Now the second of these is easy, because for x > 4, f(x) = cx + 20. Hence limit as x --> 4+ (i.e., from above, from the right) of f(x) is just <span>4c + 20.
</span>
On the other hand, for x < 4, f(x) = x^2 - c^2. Hence 
\lim_{x \rightarrow 4-} f(x) = \lim_{x \rightarrow 4-} (x^2 - c^2) = 16 - c^2

Thus these two limits, the one from above and below are equal if and only if
 4c + 20 = 16 - c²<span> 
 Or in other words, the limit as x --> 4 of f(x) exists if and only if
 4c + 20 = 16 - c</span>²

c^2+4c+4=0&#10;\\(c+2)^2=0&#10;\\c=-2

That is to say, if c = -2, f(x) is continuous at x = 4. 

Because f is continuous for all over values of x, it now follows that f is continuous for all real nubmers (-\infty, +\infty)

4 0
3 years ago
giselle pays $190 in advance on her account at the athletic club. each time she uses the club, $10 is deducted from the account.
Art [367]

For this case, the first thing we must do is define variables.

We have then:

x: number of times Giselle uses the athletic club

b: amount of money remaining

We write a linear equation of the form:

b = mx + c

Where,

m: slope of the line that represents the cost for each time she uses the athletic club

c: initial amount that Giselle paid

Substituting values we have:

b = -10x + 190

Answer:

a linear function that model the situation is:

d. b = 190 - 10x

5 0
4 years ago
Read 2 more answers
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