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Stolb23 [73]
3 years ago
15

-2(2u-3)+3u=3(u+8) u=?

Mathematics
1 answer:
dsp733 years ago
7 0
If you expand this equation first
You get -4u+6+3u=3u+24

And if you simplify that you get:
-u+6=3u+24
Now you need to solve this equation to find u

First bring 3u to the other side to -u-3u (the positive changes to negative)
Now the equation is
-4u+6= 24
Take 6 of both sides
-4u=24-6= 18
-4u= 18
So u= -18/4
Which simplifies to -9/2

Answer: -9/2
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You and your friend play a video game. You have a final score of 40 points, and your friend has a final score of -21 points. by
Serhud [2]

Answer:40+(-21)= 19

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which ordered pairs lie on the graph of the exponential equation ​​ f(x)=3(1/4)^x
zysi [14]
D. I think try that ok
8 0
3 years ago
Intercepts:
Tema [17]
An x-intercept is the point where the function passes the x axis at y=0.
The y-intercept is the point where the function crosses the y axis at x=0

1. It is an x-intercept, so y = 0. The ordered pair would be (-6, 0)
2. It is a y-intercept, so x = 0. The ordered pair would be (0, -2.3)
3. It is a y-intercept, so x=0. The ordered pair would be (0, 3/4)

To find the x-intercept, set y = 0. To find the y-intercept, set x=0

4. y-intercept: y = 3(0) -9. y = -9 The y-intercept is at (0, -9)
x-intercept: 0 = 3x -9. 9 = 3x. x = 3. The x-intercept is at (3, 0)

5. x intercept: 0 = 5x +10. -10 = 5x. x = -2. The x-intercept is at (-2, 0)
y-intercept: y = 5(0) + 10. y = 10. The y-intercept is at (0, 10)

If you look at finding the y-intercepts in the two problems above, you may see there is a pattern forming. The y-intercept is the number that your adding or subtracting that is located after the x (ex. y = 4x - 2 - the y-intercept would be -2)

9. First, find the x and y-intercepts. The y intercept is -3 You’d graph that at (0, -3). 0 = -1/2x - 3. -1/2x = 3. x = -6 so the x-intercept is at (-6, 0). If you only need to graph 2 points, then you can graph just those two points and draw a line between them.

To graph y=-1/2x + 3, start at the y-intercept and use the slope (-1/2) to find other points. Because your slope is -1/2, you’d go down 1 unit and then to the right 2 units. That would be your next point. If you wanted your line to go further up, go up one unit and then to the left 2 units. That would be your next point.

I am not sure what you need to do on 11 and 12

I think you should try 7, 8 and 10 on your own and let me know if you have any questions on them or if you are stuck on anything.
3 0
3 years ago
Simplify the expression, write in expanded form and exponential form.
Xelga [282]

Answer:

225 x a^4

Step-by-step explanation:

4 0
3 years ago
Priya has picked 1 1/2 cups of raspberries, which is enough for 34 of a cake. How many cups does she need for the whole cake?
Anton [14]

Answer:

She needs 2 cups of raspberries.

Step-by-step explanation:

Consider the provided information.

Priya has picked 1 1/2 cups of raspberries, which is enough for 3/4 of a cake.

So this can be written as:

1\frac{1}{2} \text{ Raspberries}=\frac{3}{4}\text{ Cake}

\frac{3}{2} \text{ Raspberries}=\frac{3}{4}\text{ Cake}

Multiply both the sides by \frac{4}{3}.

\frac{4}{3}\times\frac{3}{2} \text{ Raspberries}=\frac{4}{3}\times\frac{3}{4}\text{ Cake}

2 Raspberries = 1 cake

Hence, she needs 2 cups of raspberries.

5 0
3 years ago
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