All categories

4 years ago

What method would you choose to solve the equation 2x2 – 7 = 9? Explain why you chose this method.

Mathematics

2 answers:

horsena [70]4 years ago

7 0

Answer:

I would use the square root property of equality. Because there is no x term, I would just add and divide to get x2 by itself. Then I would take the square root.

lisabon 2012 [21]4 years ago

4 0

is that a variable of x or a multiplication sign?

You might be interested in

Two angles have the same measure. The angles are also supplementary. Are the angles acute, right, or obtuse? How do you know?

Semmy [17]

They are right angles, supplementary means that they add up to 180. You can remember this because S in supplementary stands for S in straight line (which is 180 degrees. They are both right angles because 90 + 90 will equal 180.

Have a good night/day <3

4 0

3 years ago

Read 2 more answers

A hospital has 6 ambulances and 12 ambulance drivers. what is the ratio of ambulances to drivers when reduced to lowest terms?

timurjin [86]

6:12 is reduced to 1:6 because you divide it by 6

4 0

3 years ago

Read 2 more answers

What factors of 20 go into 50

xenn [34]

1...2...5...10 are the factors of 20 that go into 50.

5 0

3 years ago

What is the correct way to classify the figures shown below?

Natali [406]

They would be considered similar triangles.

8 0

3 years ago

Read 2 more answers

Show work

adelina 88 [10]

Answer:

n = 5
m = 12
m= -14
y =30

Step-by-step explanation:

$n -8 =-3\\\\Collect\:like\:terms\\n = -3+8\\\\Simplify ; -3+8 = 5\\\\n =5$

$-2m=-24\\\\Divide\: both \:sides\:of\:the\:equation\:by\:-2\\\\\frac{-2m}{-2} = \frac{-24}{-2} \\\\Simplify ; -2m/-2 = m , -24/-2 = 12\\\\m =12$

$\frac{m}{2}=-7\\\\Cross\:Multiply\\\\m\times 1 = 2\times -7\\\\m = -14$

$\frac{2}{3}y=20\\ \\\frac{2}{3} y = \frac{20}{1} \\\\Cross\:Multiply\\\\2y\times 1 = 3\times 20\\\\2y = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2y}{2}=\frac{60}{2}\\\\Simplify\\y = 30$

3 0

4 years ago