2 years ago

A number x divided by 7 is less than or equal to -19

Mathematics

1 answer:

Verdich [7]2 years ago

8 0

Answer:

x-7 > -19

Step-by-step explanation:

You might be interested in

Solving Square Roots Worksheet (x - k)^2 : Part 1

iVinArrow [24]

Answer:

1. x = +/- 2 $\sqrt{2}$ - 7

2. x = $3$ +/- $2i\sqrt{3}$

3. n = $2$ +/- $i\sqrt{2}$

Step-by-step explanation:

1. Divide both sides by 2: (x + 7)^2 = 8

Square root both sides: x + 7 = +/- 2 $\sqrt{2}$

Subtract 7 from both sides: x = +/- 2 $\sqrt{2}$ - 7

2. Square root both sides: x - 3 = $\sqrt{-12}$

Since there is a negative inside the radical, we need to have an imaginary number: $i=\sqrt{-1}$ . So, $\sqrt{-12} =i\sqrt{12} =2i\sqrt{3}$

Add 3 to both sides: x = $3$ +/- $2i\sqrt{3}$

3. Divide by -5 from both sides: (n - 2)^2 = -2

Square root both sides: n - 2 = $\sqrt{-2}$

Again, we have to use i: $n-2=\sqrt{-2} =i\sqrt{2}$

Add 2 to both sides: n = $2$ +/- $i\sqrt{2}$

Hope this helps!

8 0

2 years ago

Read 2 more answers

Delilah does 841 jumping jacks in 4 minutes. She does her jumping jacks at a constant rate. How many jumping jacks can Delilah d

STatiana [176]

841 jumping jacks per 4 minutes

$\frac{841~jumping~jacks}{4~minutes}$

Divide both sides by 4.

$\frac{841}{4} \div \frac{4}{4} = \frac{210.25}{1}$

Delilah can do 210.25 (or 210) jumping jacks per minute.

4 0

3 years ago

These are true or false i need help with number 3 if u want to help with the others your welcome

marishachu [46]

Answer:

3. True, wall clouds are good indicators that a tornado could form

Step-by-step explanation:

4 0

1 year ago

Read 2 more answers

Answer question worth 25 points plz help!

Ilya [14]

Answer:

Step-by-step explanation:

6 0

2 years ago

What is the 72nd term in the term in the arithmetic sequence 3, 9, 15, 21,

boyakko [2]

Answer:

429

Step-by-step explanation:

y=3+6×(n-1)

n=72

y=3+6×(72-1) = 429

7 0

2 years ago