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Oliga [24]
2 years ago
11

Find the sum: -1 + 2 + 5 + ... + 20

Mathematics
1 answer:
mariarad [96]2 years ago
6 0
26 is the correct answer
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PLE HELP ASAP WILL MARK BRAINLIEST IF YOU ARE CORRECT!!!!!!!!!
masya89 [10]

Answer:

(8, 6)=(x, y) | (6, 5)= (y, x)

Step-by-step explanation:

Start at the x, and find the value. Next, find the value of y.

You already know the value for y is 6, so next find the value of x, which is 5.

7 0
3 years ago
Which of the following is an equivalent form of the compound inequality −22 > −5x − 7 ≥ −33?
Finger [1]

The equivalents of the given compound inequality are x > 3 and x ≤ 5.2 OR 3 < x ≤ 5.2

<h3>Solving inequalities </h3>

From the question, we are to determine the equivalent form of the compound inequality

We will solve the given compound inequality

The given inequality is

−22 > −5x − 7 ≥ −33

We can write that

−22 > −5x − 7 AND −5x − 7 ≥ −33

Solving  −22 > −5x − 7

5x > -7 +22

5x > 15

x > 15/5

x > 3

Also,

Solve −5x − 7 ≥ −33

−5x ≥ −33 +7

-5x ≥ -26

x ≤ -26/-5

x ≤ 5.2

Hence, the equivalents of the given compound inequality are x > 3 and x ≤ 5.2 OR 3 < x ≤ 5.2

Learn more on Inequalities here: brainly.com/question/20356565

#SPJ1

5 0
2 years ago
Ok how do you add pictures​
Andrej [43]
Ohh well when u type in another question it should show a pic option at the bottom once your done typing whatever is u wish to ask :)
5 0
3 years ago
You are hiking on a trail that leads down from the top of a mountain. At 11 A.M. You are at an elevation of 5400 feet. At 3 P.M.
Tems11 [23]

Step-by-step explanation:

You hiked 5400 - 3800 = 1600 feet in 4 hours so the mean change is 1600 / 4 = 400 ft/hour.

5 0
3 years ago
There are three points on a line, A, B, and C, so that AB = 12 cm, BC = 13.5 cm. Find the length of the segment AC . Give all po
Semmy [17]

Answer:

AC = 25.5 or 1.5

Step-by-step explanation:

If they are on a line and they are in the order ABC

AB + BC = AC

12+13.5 = AC

25.5 = AC

If they are on a line and they are in the order CAB

CA + AB = BC

AC + 12 =13.5

AC = 13.5 -12

AC = 1.5

If they are on a line and they are in the order ACB

That would mean that AB is greater than BC and that is not the case

3 0
3 years ago
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