Mathematics : asked on fluffyskunk302

23.08.2021

Heyyyy does anyone know the answer please help me

0

Step-by-step answer

09.07.2023, solved by verified expert

Bibin (Bibi) P B

Biology, Geography, Q&A Expert

16 555 answers

Unlock the full answer

B)

Step-by-step explanation:

Group like terms:

Combine like terms:

It is was helpful?

Helpful Useless

Faq

Mathematics

Heyyyy does anyone know the answer please help me

Step-by-step answer

P Answered by Specialist

B) x^2+5x+19

Step-by-step explanation:

(2x^2+7x+10)-(x^2+2x-9)

$\textsf{Apply rule}\:(a)=a:$

=2x^2+7x+10-(x^2+2x-9)

$\textsf{Apply distributive law}\:-(a+b)=-a-b\:\textsf{ and }\:-(a-b)=-a+b:$

= 2x^2+7x+10-x^2-2x+9

Group like terms:

= 2x^2-x^2+7x-2x+10+9

Combine like terms:

= x^2+5x+19

Mathematics

A new school randomly assigns a six-character student code to every prospective student. The school uses the characters 1, 2, 3, 4, 5, X, Y, and Z. If none of the student codes contain a repeated character, what is the total number of codes that can be randomly assigned?

Step-by-step answer

P Answered by PhD

The total nom of code that can be used is equal to 5+3 = 8

Mathematics

An online media service offers video and music downloads. Each download of a song costs $1. Each download of a video costs 5 times as much as the song download. You have a credit of $70. How many songs can you purchase after buying 12 videos?

Step-by-step answer

P Answered by PhD

The answer is in the image

The answer is in the image

Mathematics

The value of a collectible coin can be represented by the equation y = 2 x + 15, where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years? $2 $23 $38 $53

Step-by-step answer

P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

Mathematics

A 4300-N force from a car s engines produces an acceleration of 3.3 m/s2. What is the mass of the car? A. 4300 kg B. 1300 kg C. 14,000 kg D. 390 kg

Step-by-step answer

P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

=4300/3.3

=1303.03kg

Mathematics

A 4300-N force from a car s engines produces an acceleration of 3.3 m/s2. What is the mass of the car? A. 4300 kg B. 1300 kg C. 14,000 kg D. 390 kg

Step-by-step answer

P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

=4300/3.3

=1303.03kg

Approximately it is aqual to 1300kg

Mathematics

Stefania pure 2 liters of orange juice and 1.5 liters of pineapple juice into a punch bowl how many kiloliters are in the punch bowl

Step-by-step answer

P Answered by PhD

The answer is in the image

The answer is in the image

Mathematics

If a european swallow flies 15 meters every 1 second how many would kilometers would it fly in 15 minutes

Step-by-step answer

P Answered by PhD

Speed=Distance/time

Here,

distance=15m

time=1sec

speed=15/1=15m/sec

Distance=Speed*time

time=15min=15*60sec=900sec

Distance travelled in 15 min=15*900=13,500m

=13500/1000 km=13.5Km

Mathematics

David is building wooden picture frames. Each frame requires 3/4 feet of wood. If David started with 12 feet of wood and now has 6 feet of wood remaining, how many pictures frames has he built?

Step-by-step answer

P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics

David is building wooden picture frames. Each frame requires 3/4 feet of wood. If David started with 12 feet of wood and now has 6 feet of wood remaining, how many pictures frames has he built?

Step-by-step answer

P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

free Ask question

Today we have helped

1 006 students

just now

Mathematics

If f(x)=2x+8, find f(5).

and

if f(x)=3x+4, find f(8)

s Answered by Specialist

just now

Social Studies

2. Ms. Huffaker makes reference to information students have previously learned and explains to students why they are revisiting those topics. It is important to refer back to prior learning from time to time so that students maintain a strong foundation of understanding and are able to build upon those skills/content later on. What do you hear her say

p Answered by PhD

just now

Mathematics

There are 5 red marbles, 4 blue marbles and 7 black marbles in a bag. Like the theoretical P(choosing a red)

m Answered by Master

just now

Mathematics

If the baseball radius is 1.4 inches what is the circumfrance in inches

m Answered by Master

1 minute ago

English

You are Priyanka Paul / Priyank Paul, the student editor of Sunshine Public School, Kuwait. Your school is arranging a trip to Kuwait Times Printing Press for the students to learn how newspapers are printed and published. Write a notice (50 – 60 words) for the students of class 6th, inviting them to join the trip. Include date, time, mode of conveyance.

s Answered by Specialist

Get help with homework

What is Studen

Studen helps you with homework in two ways:

Our base includes complete solutions from various experts

chat

Leave a question

Studen will automatically choose an expert for you.

directly

We have more than 5 000 verified experienced expert