All categories

2 years ago

Pls help me find the operations of 3a^2+4a^2+7a^2

Mathematics

2 answers:

Ber [7]2 years ago

7 0

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

Combine like terms

Factor out a^2

a^2(3+4+7)

a^2(14)

14a^2

Maru [420]2 years ago

4 0

Answer:

14 a²

Step-by-step explanation:

3a² + 4a² + 7a²

collect like terms

(3 + 4 + 7)a² .. ( factor out :- a²)

calculate the sum

14 a²

You might be interested in

Am I correct on number 3? If not whats the correct answer? And what is the answer for number 4? Will be marking brainliest!!

timama [110]

Answer for number 4 is $\frac{\bold2}{\bold3}$ hour.

Step-by-step explanation:

Maximum hour spent for all homework (English homework + math homework) is 2 hours.

Let us assume the hours spent for English homework be 'e'.

It is given that:

(Hours spent for math homework) = 2 × (Hours spent for English homework)

Hours spent for math homework = 2 × e = 2e

Total hours spent = (Hours spent for math homework) + (Hours spent for English homework)

Total hours spent = 2e + e = 3e

2 = 3e

3e = 2

∴ e = $\frac{\bold2}{\bold3}$

Therefore number of hours spent on English homework is equal to $\frac{\bold2}{\bold3}$ hours.

8 0

2 years ago

What is 11.625 rounded to the nearest whole number

Andru [333]

Answer:

your answer is 12

Step-by-step explanation:

have a great day! :)

8 0

2 years ago

if the temperature dcreases by a constant rate of 3 degrees celcius each minute what will the temperature cecius after 5 minute

kozerog [31]

Answer:

i realy dont known dude haaaaaaaahaaahahahah

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

NEED HELP NOW! SOLVE THE INEQUALITY: -r/3 ≤ 6

larisa [96]

Answer:

$r\geq -18$

Step-by-step explanation:

$\frac{-r}{3} \leq 6\\\rule{150}{0.5}\\(\frac{-r}{3})*3\leq 6*3\\\\-r \leq 18\\\\\frac{-r \leq 18}{-1}\\\\\boxed{ r\geq -18}$

Hope this helps!

5 0

2 years ago

-7 (-6) + 17 help plz

Elden [556K]

Answer: 59

Step-by-step explanation:

-7 (-6) + 17 (multiply -7 and -6)

= 42+17 (simplify)

=59

3 0

2 years ago

Pls help me find the operations of 3a^2+4a^2+7a^2​

Pls help me find the operations of 3a^2+4a^2+7a^2