Find the number of real number solutions for the equation. x2 + 5x + 7 = 0

What's the equation of this sequence 4,8,16,32,64,128,256

lions [1.4K]

Answer:

See below

Step-by-step explanation:

Here we have a function $a$ such that $a: \mathbb{N}\to \mathbb{R}$ and $a:n \mapsto a(n) = a_n$

The sequence is denoted as $\{a_n\}_{n\in\mathbb{N}}$ such that $\mathbb{N} = \{1, 2, 3, ...\}$

For this sequence, we would have

$\left\{ {2^n\right\}_{n = 2}^8$

But sure it seems to follow

$\left\{ {2^n\right\}_{n = 2}^\infty$

3 0

3 years ago

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Which of the following best describes the change in the range when 13 is

svetoff [14.1K]

The answer is D). It increases by 13.
If you put the numbers in order from least to greatest.. 26,34,38,49,65,75,81
You will see the 26 is the smallest number and 81 in the highest number. The range between the two numbers is 55. To find the range you take the smallest number and subtract it from the biggest number. But when you add the number 13 to the problem then26 is no longer the smallest Number because 13 replaced it. So then you take 81 and subtract 13 from it and get 68. And then you take 55 and subtract it from 68 and come with 13. Which makes the answer D.

6 0

4 years ago

Solve for 2 unknowns 3y + 3x =24 6y+3x = 39

kari74 [83]

The two unknown variable in the two given equations are "x" and "y".
3y + 3x = 24
Dividing both sides by 3 we get
y + x = 8
x = 8 - y
Putting the value of y in the second equation we get
6y + 3x = 39
Dividing both sides by 3 we get
2y + x = 13
2y + 8 - y = 13
y = 13 - 8
= 5
Putting the value of y in the first equation we get
y + x = 8
5 + x = 8
x = 8 - 5
x = 3
So the value of x is 3 and the value of y is 5. I hope the procedure is clear enough for you to understand.

3 0

4 years ago

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Find the measure of each of the angles. Don’t forget to label your answer

user100 [1]

Answer:

$a=125^o$