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Vinil7 [7]
3 years ago
7

Find the sum of the first 20 terms

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0

Answer:20.5

Step-by-step explanation:

1.5+1.45+1.40+1.35+1.30+1.25+1.20+1.15+1.10+1.05+1.00+0.95+0.90+0.85+0.80+0.75+0.70+0.65+0.60+0.55=20.5

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graph the parabola y equals negative x squared + 3 to graph a parabola plot the vertex and four additional points two on each si
Nataliya [291]

You don't have the graph icon here, so we'll have to graph this parabola without it.


Your parabola is y = -x^2 + 3., which resembles y = a(x-h)^2 + k. We can tell immediately that this parabola opens down and that the vertex is (0,3).


Plot (0,3). Besides being the vertex, this point is also the max. of the function.


Now calculate four more points. Choose four arbitrary x-values, such as {-2, 1, 4, 5} and find the y value for each one. Plot the resulting four points. Draw a smooth curve thru them, remembering (again) that the vertex is at (0,3) and that the parabola opens down.

6 0
2 years ago
What would my final balance be if i put $650 in the bank for 60 months with an interest rate of 6%?
Flauer [41]
Your final balance would be $2,340.

I = Prt
Percent (6%) x rate (650) x time (60 months) = 2,340

6% = 0.06

0.06 x 60 x 650 = 2,340


3 0
3 years ago
Last question then I’ll be done I’m pretty sure. Please help and I’ll mark brainliest if it lets me. Just give me a small explan
almond37 [142]

Answer:

B is the right answer I am sure

3 0
2 years ago
2 + 2 - 1<br><br>I really need help​
shutvik [7]

Answer:

3

Step-by-step explanation:

Break the problem up into two

Ignore the -1 for now

2+2=4 because if you separate 2 and 2, you get four ones, therefore it's four

Now that you have four, subtract 1

And you got 3

5 0
3 years ago
Explain multi step equations
Mice21 [21]
Multi-step equations are equations that  require more than one step to solve.

For example:
2x+6 = 10          You subtract 6 from both sides
2x= 4                 Divide both sides by 2
x=2                    It took 2 steps to solve for x, so it is a muti-step equation.

One step equation:
2x =6                divide 2 by both sides
x=3                    It only took one step, so it is an one-step equation.

Hope this can help you! Please put branliest answer if you like it! 


3 0
3 years ago
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