3 years ago

What is the simplified expression for 3 a squared + 9 a b + 5 minus 4 a squared minus 4 a b + 3?

Mathematics

2 answers:

Oksanka [162]3 years ago

6 0

Answer:

Negative a squared + 5 a b + 8

Step-by-step explanation:

i took the test on edge

DENIUS [597]3 years ago

6 0

Answer: c

Step-by-step explanation:

You might be interested in

poizon [28]

Answer:

the answer to this is -13

4 0

3 years ago

Read 2 more answers

The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as L = 10 lo

Inessa [10]

Answer:

50 Db

Step-by-step explanation:

we know that

The loudness in decibels is given by the formula

$L = 10log(\frac{I}{I_0})$

where

I = sound intensity in watts per square meter (Watts/m^2)

I₀ = reference intensity, = 10^(-12) Watts/m^2

For I=10^(-7) Watts/m^2

substitute in the formula above and solve for L

$L = 10log(\frac{10^{-7} }{10^{-12}})$

$L = 10log(10^{5})$

$L = 10 (5)=50\ Db$

7 0

3 years ago

Read 2 more answers

NEED HELP....arrange the following in ascending order: 13/24;2/3;7/12;5/6;5/8

Nonamiya [84]

13/24, 7/12, 5/8, 2/3, 5/6 :)

4 0

3 years ago

17000 spent on expenses if that amount is 58.6% of total income how much is made a year

belka [17]

Answer:

Step-by-step explanation:

58.6% of the total income is 17,000

let x represent the total income

58.6%(x) = 17,000...turn ur percent to a decimal

0.586x = 17,000

x = 17,000 / 0.586

x = 29010.238 rounds to 29,010.24 <== total yearly income

check...

58.6% of 29,010.24 = 17,000

0.586(29,010.24) = 17,000

17,000 = 17,000 (correct)

5 0

3 years ago

PLEASE HELP ASAP!!!<br><br> 1. A) 3 B) 6 C) 9 D) 27<br> 2. A) 3 B) 6 C) 9 D) 27

sammy [17]

chris started with 27 ( where the dot is at X=0)

Connie started at 9 ( because it doesn't have a letter with it)

4 0

3 years ago