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3 years ago

Find the solution(s) to the equation below. x2 + 7x - 10 = 0

Mathematics

1 answer:

andre [41]3 years ago

6 0

Your Answer Would Be ..
X = 10/9

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How do I solve this?

andreev551 [17]

Answer:

x is in the range [-1,4]

Step-by-step explanation:

I haven't worked with absolute value inequalities in awhile, but let's take a wack at this.

We are given the following inequality:

| 2x - 3 | <= 5

This implies two possible cases:

[1] -5 <= 2x -3

[2] 2x - 3 <= 5

So let's solve x for both of these cases:

[1] -5 <= 2x - 3

-2 <= 2x

-1 <= x

[2] 2x - 3 <= 5

2x <= 8

x <= 4

So from these cases, we can say the following is true:

x >= -1 and x <= 4

Thus, we can write this in the form

-1 <= x <= 4

Or in interval notation:

{ x is element of reals | -1 <= x <= 4}

Also written as

x is in the range [-1,4]

Where the closed brackets represent 1 and 4 as possible answers whereas parenthesis would imply they were not.

Cheers.

4 0

3 years ago

Which of the following lists is in the correct order from smallest to largest? -13, -19, -21, -24 11, -12, 15, -19 -7, -3, 6, 2

seraphim [82]

Answer:

-24, -21, -19, -19, -19, -14, -13, -12, -7, -3, 2, 5, 6, 11, 11, 15

Step-by-step explanation:

Hey there!

To put the numbers in least to greatest form, you need to put the biggest numbers with a - sign in front of it

This means negative

Negative means below zero

Then after putting the big negative numbers, you put positive numbers going from smallest to largest

So the numbers in least to greatest is -24, -21, -19, -19, -19, -14, -13, -12, -7, -3, 2, 5, 6, 11, 11, 15

3 0

2 years ago

(25 points)

Leona [35]

Answer:

-80

Step-by-step explanation:

We have: -6 = $\frac{x}{8}$ + 4. In order to solve for x, we need to isolate it; in order to isolate x, we have to "undo" order of operations.

The regular order of operations is PEMDAS: parentheses, exponents, multiplication, division, addition, subtraction.

Here, since we're solving for x, we need to go backwards. So, first, subtract 4 from both sides:

-6 - 4 = $\frac{x}{8}$ + 4 - 4 ⇒ -10 = $\frac{x}{8}$

Then, multiply by 8 on both sides:

-10 * 8 = $\frac{x}{8}$ * 8 ⇒ x = -80

Thus, x = -80.

Hope this helps!

3 0

3 years ago

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Find the average of the following set of numbers.<br> 14, 15, 24, -5, -2

I am Lyosha [343]

Answer:

the answer is 8

Step-by-step explanation:

5 0

2 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Solve the equation

Furkat [3]

Idk how to explain it but i got 1

8 0

3 years ago

Read 2 more answers