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3 years ago

Use the square root property to solve the Quadratic Equation. x2 = -49

Mathematics

2 answers:

Novay_Z [31]3 years ago

4 0

Answer:

no real solution

Step-by-step explanation:

no real solution

Margaret [11]3 years ago

4 0

Answer:

-7

Step-by-step explanation:

x2 divide-2 =x -49 divide by 2 =

x=-7

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Which compound inequality can be used to solve the inequality 3x+2>7

kipiarov [429]

Answer:

3x + 2 < –7 or 3x + 2 > 7

3 0

2 years ago

A research study shows that the yearly cost of dental claims for virginia state employees with dental care as a part of their he

Musya8 [376]

The right answer is 50% .

3 0

3 years ago

20 cm

lawyer [7]

The area of the arrow given in the figure is 610 square cm

<h3>Area of composite figure</h3>

The given figure is made up of rectangle and triangle. The area is expressed as:

Area = Area of rectangle + area of triangle

Substitute the given parameters

Area of the arrow = (15*20) + 0.5(31 * 20)

Area of the arrow = 300 + 310
Area of the arrow = 610 square cm

Hence the area of the arrow given in the figure is 610 square cm

Learn more on area of composite figures here: brainly.com/question/21135654

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7 0

1 year ago

WILL GIVE BRAINLIEST, THANKS, AND 5 STARS!<br> PLEASE HELP ME!

Bogdan [553]

Answer:

-4 and 4

Step-by-step explanation:

<u>Method 1</u>

Apply Difference of Two Squares Formula: $a^2-b^2=(a+b)(a-b)$

Given $x^2-16=0$

Rewrite 16 as 4²

Therefore, $a^2=x^2$ and $b^2=4^2$

$\implies a = \sqrt{x^2}=x$

$\implies b=\sqrt{4^2} =4$

$\implies x^2-16^2=(x+4)(x-4)$

$\implies (x+4)(x-4)=0$

$\implies (x+4)=0 \implies x=-4$

$\implies (x-4)=0 \implies x=4$

<u>Method 2</u>

Given equation:

$x^2-16=0$

Add 16 to both sides:

$\implies x^2-16+16=0 + 16$

$\implies x^2=16$

Square root both sides:

$\implies \sqrt{x^2}=\sqrt{16}$

$\implies x=\pm4$

Therefore, x = -4, x = 4

6 0

2 years ago

2) Eight is 5 less than<br> twice the number R.

posledela

Answer:

8-5 times R

Step-by-step explanation:

you subtract 8-5 to get that answer and then you do less than twice the number r i think this is correct hope it helps :)

7 0

3 years ago