1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
motikmotik
2 years ago
13

Use a special-product rule to factor the perfect-square trinomial. 81y^2+ 126y + 49

Mathematics
1 answer:
Ivahew [28]2 years ago
7 0

Answer:

The perfect -square trinomial

                  (9y+7)²

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given polynomial equation

                        81 y² + 126 y +49

               ⇒     9² y² + 2(9)(7)y + 7²

                ⇒   (9y)² + 2(9)(7)y +7²

we will use formula

   (a+b)² = a² + 2ab +b²

             ⇒ (9y+7)²

<u><em>Final answer:-</em></u>

The perfect -square trinomial

                  (9y+7)²

You might be interested in
Jim is paid overtime when he works more than 40 hours per week. Write an expression for the number of hours he works overtime wh
MrRa [10]
jhbvcfctgkxuyfitdgitucyi fur if vjgk 40h. n.
3 0
3 years ago
Omar has a new credit card. He earns
Mnenie [13.5K]

Answer:

$600

Step-by-step explanation:

Omar spent $600.

Essentially, we divide his total number of points:

1800

by the amount earned

300

=

6

we take that and multiply by 100 (our amount needed to be spent to earn points) and boom, problem solved.

4 0
2 years ago
Can I get some help on these please ?
Ksivusya [100]
Q1
Divide each distance by its time to find the speed for each driver.
T: 380 km / 4 hr = 95 km/h
M: 530 km / 5 hr = 106 km/h
Martine's average speed was greater.

Q2
Bronze to aluminum is 25:2
The alloy is bronze plus aluminum, so by adding 25 + 2 you get 27.
Bronze to total is 25:27

25 is 27 as x is to 55

25/27 = x/55

27x = 25 * 55

x = 50.926

Answer: 50.926 kg of bronze

Q3
Manipulative toys to art toys is 30:40
Total toys = 30 + 40 = 70

manipulative toys are 30 out of 70

30/70 * 100 = 42.9%

6 0
3 years ago
Rather than use the two scoops of coffee recommended by the manufacturer, a coffee aficionado uses three scoops of coffee per po
Aleks [24]

Answer: Relative error = 50%

Step-by-step explanation:

Relative error Re = Absolute error/True value × 100%

True value = 2 scoops

Measured(used) value = 3 scoops

Absolute error Ae = measured(used) value - True value

= 3 scoops - 2 scoops

Ae = 1 scoop

Re = 1/2 × 100%

Re = 50%

7 0
3 years ago
uses 2 1/2 cups of apple juice and 1 1/2 of carrot juice for a recipe. enter the number of cups of apple juice used for 1 cup of
Inessa [10]

Answer:

1 3/4

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • A drawer is filled with 26 white socks. Justin randomly picks a sock from the drawer. What is the likelihood that the sock will
    6·2 answers
  • Find the least common denominator (LCD) for the fractions. 1/12 and 3/4                                    A. 12        B. 4    
    6·2 answers
  • in an election about 500,000 people voted in all what could be the exact number of people who voted in the election
    5·1 answer
  • What is the best deal 2.50 for 1 pint or 4.50 for 1 quart
    10·1 answer
  • If you ungroup 5,000 from 2,896 how do you explain the place value of 49910 to 5,000
    12·1 answer
  • A rectangular park is 150 yards on one side and 125 yards on the other.If someone wanted to walk 1,000,000 yards, how many times
    11·1 answer
  • SOMEONE PLZ CONTACT Tswee123 and tell the zoribelle is asking them not to leave
    15·1 answer
  • What figure will result when the triangle is rotated around RE?
    9·1 answer
  • What 1,500 rounded to the nearest hundredth
    13·2 answers
  • In the cafeteria, 100 milk cartons were put out for breakfast. After breakfast there were 40 milk cartons left. What is the rati
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!