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
Natasha_Volkova [10]
2 years ago
14

Please help!! I literally have no idea what to do here.

Mathematics
2 answers:
kenny6666 [7]2 years ago
6 0

Answer:

4.9y² + 2y + 4.7

Distributive property

Step-by-step explanation:

3.9y^2+5.8+4y-1.1-2y+y^2

collect and combine like terms:

\implies 4.9y^2 +2y+4.7

<u>Distributive property</u>

The distributive property states that an expression which is given in form of A (B + C) can be solved as A x (B + C) = AB + AC.  Similarly, A (B - C) can be solved as A x (B - C) = AB - AC

nika2105 [10]2 years ago
3 0
I believe it's it's d
Sorry if I'm wrong I'm mr lemonade
You might be interested in
what is the different of the perimeter of the rectangle if its width has been increase by 7 and its length increase by 5
Alenkasestr [34]
I don't know!!!!!!!! I don't understand

6 0
3 years ago
Read 2 more answers
The initial temperature of a cup of tea is 200ºF. The surrounding temperature is 70ºF, and the value of the constant k is 0.6.
Nezavi [6.7K]

Newton's Law of Cooling states that the change of the temperature of an object is proportional to the difference between its own temperature and the ambient temperature over time.

Therefore when expressed mathematically, this is equivalent to:

dT = - k (T – Ts) dt

dT / (T – Ts) = - k dt

Integrating:

ln [(T2– Ts) / (T1– Ts)] = - k (t2 – t1)

Before we plug in the values, let us first convert the temperatures into absolute values R (rankine) by adding 460.

R = ˚F + 460

T1 = 200 + 460 = 660 R

Ts = 70 + 460 = 530 R

ln [(T2– 530) / (660 – 530)] = - 0.6 (2 - 0)

T2 = 569.16 R

T2 = 109 ºF

Answer: After 2 hours, it will be 109 ºF

6 0
3 years ago
How do you divide fractions with different denominators with whole numbers?
gregori [183]
You have to turn the whol number back into an improper fraction, then you do what you would regulary do with the division of fractions.
5 0
3 years ago
Pls help me I’m struggling
konstantin123 [22]

Answer:2

Step-by-step explanation:

4 0
3 years ago
Number 9 !!!! please answer !!!! explain how u got the answer and the answer of cpurse
storchak [24]

answer:

90 degrees + 28 degrees= 118 degrees

180-118= Z is 62 degrees

13y-1 = 24                                     2x-7 = 39

+1           +1                                          +7     +7

13y = 25                                          2x = 46

/13      /13                                           /2     /2

y = 1.92                                            X = 23

3 0
3 years ago
Read 2 more answers
Other questions:
  • For every increase one on the ritcher scale an earthquake is 10 times more powerful which of the following models the situation
    14·1 answer
  • Anyone know what this is
    15·2 answers
  • A gas pump measures volume of gas to the nearest 0.01 gallon. which measurement shows an appropriate level of precision for the
    9·2 answers
  • Alan threw 8 grams of sugar into 32 grams of water. He made ______ grams of _______% sugar syrup.
    12·1 answer
  • What is the distance between the points (-3,5) and (-3,-9) ? ​
    15·1 answer
  • A 10.0 mL sample of copper has a mass of 89.6 g. What is the density of copper?
    5·1 answer
  • Which system of equations is represented by the graph?
    7·1 answer
  • How do you work 5e=3e+36​
    5·1 answer
  • HELPPPPPPPPPPPPP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE WILL GIVE BRAINLIST
    13·1 answer
  • I need help,<br> Find the perimeter of the rectangle. Write your answer in Scientific Notation
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!