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Lelu [443]
3 years ago
14

⇒please help

Mathematics
1 answer:
vredina [299]3 years ago
7 0
2(2x-10)-8=-2(14-3x)\ \ \ | omit\ the\ bracket\\\\
4x-20-8=-28+6x\\\\
4x-28=-28+6x\ \ \ | subtract\ 6x\\\\
-2x-28=-28\ \ \ | add\ 28\\\\
-2x=0\ \ \ \ | divide\ by\ -2\\\\
x=0\\\\ Answer:A
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Use the approach in Gauss's Problem to find the following sums of arithmetic sequences.
Svet_ta [14]

The total value of the sequence is  mathematically given as

498501

<h3>The sum of the sequence is..?</h3>

Generally, the equation for Gauss's Problem is  mathematically given as

The sum of an arithmetic series;

1+2+3+...+n= n(n+1)/2

Given an arithmetic sequence,

1+2+3+...+998,

Here,

n = 998

1+2+3+...+n=n(n+1)/2

1+2+3+...+998=98(998 + 1)/2

998 x 999 1+2+3+...+998 =2

1+2+3+...+998 = 498501

In conclusion, 498501 is the total value of the sequence.

Read more about sequence

brainly.com/question/21961097

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6 0
2 years ago
There are 3 inches of snow on the ground when it begins to snow 0.5 inches per hour.
algol [13]
The answer is <span>y=0.5x+3

</span><span>There are 3 inches of snow on the ground: y = 3
</span><span>When it begins to snow 0.5 inches per hour: y = 0.5x
</span>There are 3 inches of snow on the ground when it begins to snow 0.5 inches per hour: y = 0.5x + 3<span>

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3 0
3 years ago
50 point for this question
finlep [7]

Answer:

55.2° ≤ c ≤ 55.8°

Step-by-step explanation:

We know a + b + c = 180

Let's take the smallest value of a and b and find largest value of c:

51.3 + 72.9 + c = 180

c = 55.8

Now,

Let's take the largest value of a and b and find smallest value of c:

51.5 + 73.3 + c = 180

c = 55.2

Thus, we can say, range of c is:

55.2° ≤ c ≤ 55.8°

4 0
3 years ago
Read 2 more answers
What is 1/4 of 52? will mark BRAINLLEST show work
jolli1 [7]

Answer:

13

Step-by-step explanation:

1/4 of 52

= 1/4 x 52

= 52/4

= 13

8 0
3 years ago
Read 2 more answers
Function k is a continuous quadratic function that includes the ordered pairs shown in the table .
I am Lyosha [343]

Complete question is;

Function k is a continuous quadratic function that includes the ordered pairs shown in the table. (-1,5), (0,8); (1,9), (2,8); (3,5) (4,0) Over which interval of the domain is the function Increasing?

A (1, ∞)

B. (-∞,1)

C (-∞, ∞)

D. (-∞,9)​

Answer:

Option B - (-∞ , 1)

Step-by-step explanation:

From the ordered pairs given, we observe the following:

From (-1, 5) to (0, 8);

In this, 8 is more than 5, thus there is an increase.

From (0, 8) to (1, 9);

In this, 9 is more than 8, thus there is an increase.

From (1,9) to (2, 8);

In this, 8 is less than 9, thus there is a decrease.

Looking at all the ordered pairs, we can see that f(0) = 8 and f(2) = 8.

Thus, we can say that; f(0) = f(2)

This means that our maximum value is likely in the middle of 0 and 2.

Now, from all the ordered pairs, f(1) = 9 is the maximum value of the function.

It now means that when x = 1, the direction of the function changes.

We have seen that at points before x = 1 the function was increasing but after that point the function will begin decrease.

Thus, we can conclude that in all the values that fall in the range of x < 1, the quadratic function will be increasing.

So, the correct answer among the given options is: (-∞ , 1)

3 0
3 years ago
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