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Anna11 [10]
3 years ago
13

Can smb pls help me with this ? i don’t remember how to do it

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0
F(a) has to mean f(3) or when it says 3(a+4))-5 I think that I means that the a means 3. So 3(3+4)-5
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X=y+4 and y=x+4
timofeeve [1]
Alright, for the two equations you gave me, which are x=y+4 and y=x+4, we can try substitution to get the answer! Substitution is when you take one variable from one equation and plug it into another equation to find out what both variables are!

To do this, we start with the first equation, x=y+4. Then, from the second equation we know that y=x+4 so we can plug x+4 in for the y in the first equation. We now have x=(x+4)+4 as our first equation.

Now, we can simplify! The parenthesis aren't important in this equation, so we can just get rid of them, giving us x=x+4+4. Now we can simplify to give us x=x+8. Now, all that's left is to subtract the x from both sides of the equation! This gives us 0=8, but we know that that's not possible because there is no way that 0 can equal 8. This means that this equation doesn't have an answer!

To check this, you can repeat the steps above with the second equation, but you will still end up with 0=8, and that, again, means that this equation doesn't have an answer.
6 0
4 years ago
Read 2 more answers
The Ship It Anywhere Company bought a truck for $245,000. According to the company’s accounting department, the truck will depre
Svetradugi [14.3K]

Answer:

1. V(t) = -32500t + 245000

a. The slope of the function is m = -32500, and it means the change in the value of V(t) for each unitary change in the value of t.

b. The V-intercept is b = 245000, and it means the value of V(t) when t = 0, that is, the inicial value of V(t).

c. The formula is: V(t) = -32500t + 245000

2. t-intercept: t = 7.5385

The t-intercept means when the function V(t) will be zero, that is, the truck has no value anymore.

3. Graph in the image attached.

4. The domain is t = [0, 7.5385] and the range is V(t) = [245000, 0].

5. V(8) = -15000

It means the price the truck will have after 8 years. It does not make sense, because the truck can't have a negative price.

6. After 3.6 years.

7. Between 3.23 years and 5.63 years.

Step-by-step explanation:

1.

The inicial value is 245,000, and each year the value decreases 32,500, so we can write the equation:

V(t) = -32500t + 245000

a. The slope of the function is m = -32500, and it means the change in the value of V(t) for each unitary change in the value of t.

b. The V-intercept is b = 245000, and it means the value of V(t) when t = 0, that is, the inicial value of V(t).

c. The formula is: V(t) = -32500t + 245000

2.

To find the t-intercept we just need to use V(t) = 0 and then find the value of t:

0 = -32500t + 245000

32500t = 245000

t = 7.5385

The t-intercept means when the function V(t) will be zero, that is, the truck has no value anymore.

3.

The graph of the function is in the image attached.

4.

The domain is t = [0, 7.5385] and the range is V(t) = [245000, 0].

5.

V(8) = -32500*8 + 245000 = -15000

It means the price the truck will have after 8 years. It does not make sense, because the truck can't have a negative price.

6.

128000 = -32500t + 245000

32500t = 117000

t = 3.6

After 3.6 years.

7.

62000 = -32500t + 245000

32500t = 183000

t = 5.6308

140000 = -32500t + 245000

32500t = 105000

t = 3.2308

Between 3.23 years and 5.63 years.

5 0
3 years ago
Write the point -slope form of the equation of each line given the slope and y-intercept. Slope=(2/3), y-intercept =0
MakcuM [25]

Answer:

\large\boxed{y-0=\dfrac{2}{3}(x-0)\to y=\dfrac{2}{3}x}

Step-by-step explanation:

The point-slope form of ane equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slope</em>

<em>(x₁, y₁)</em><em> - point on a line</em>

<em />

We have:

m=\dfrac{2}{3}

y-intercept is for x = 0.

Therefore, if y-intercept = 0, then we have the point (0, 0).

y-intercept=0\to(0,\ 0)

Substitute:

y-0=\dfrac{2}{3}(x-0)\to y=\dfrac{2}{3}x

6 0
4 years ago
Which is greater 0.6 or 0.285
dusya [7]

Answer:0.06

Step-by-step explanation: just pretty obvious

7 0
4 years ago
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Which of the following sentences contains a gerund phrase (not a verb phrase or just a gerund by itself)?
Zinaida [17]
I need choices so i can see which one is right
5 0
3 years ago
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