2 years ago

What method would you choose to solve the equation 2x^2-7=9? Explain why you chose this method

Mathematics

1 answer:

emmasim [6.3K]2 years ago

4 0

Answer:

PEMDAS

Step-by-step explanation:

parenthesis, exponents,multiplication,division,additon,substraction, these are the steps in order to follow when solving equations.

You might be interested in

-1/3 -(-5/12) which shows an equivalent addition expression

dem82 [27]

Answer:

-1/3 - (-5/12) = 1/12.

Step-by-step explanation:

Simpler equation:

6/12 + (-5/12) = 1/12

Or This:

6/12 - 5/12 = 1/12.

hope this helped.

5 0

2 years ago

What is 1+1<br> Who ever awnser first get brainlyist

Bas_tet [7]

Answer:

Step-by-step explanation:

Hope this helps, been doing it all my life! :P

8 0

3 years ago

Read 2 more answers

What is these in simplest form <br> a) 2a + 4 + 5a + 8 = <br> b) -2b – 7 + 3b – 8 =

iren [92.7K]

Answer:

a ) 7a + 12

b) b - 15

Step-by-step explanation:

a)2a+5a +8+8

= 7a + 12

b) b - 7 - 8

= b-15

6 0

2 years ago

Abbey purchased a house using a fixed rate mortgage. The annual interest rate is 4.2% compounded monthly for 20 years. The mortg

Butoxors [25]

I GOT $9870.

4.2 % OF $235,000 IS $9870.

6 0

2 years ago

An animal shelter has a ratio of cats to dogs that is 9 to 7. If the shelter has 18 cats, how many dogs would it have?

madreJ [45]

Answer: 14 dogs

Step-by-step explanation:

Given

The ratio of cats to dogs is 9:7

The shelter has 18 cats

Suppose shelter has x dogs

$\Rightarrow \dfrac{9}{7}=\dfrac{18}{x}\\\\\Rightarrow x=\dfrac{18\times 7}{9}=14\ \text{dogs}$

5 0

2 years ago