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
Kitty [74]
3 years ago
15

Please help. On a winter day in Alaska, the temperature at noon was -0.6°C. From noon to 3:00, the temperature increased by 1.2°

C. From 3:00 to 6:00, it dropped 0.4°C, and from 6:00 to 9:00, it decreased by 0.6°C. What expression shows the temperature in °C at 9:00 p.m.?
1. -0.6 + 1.2 + (-0.4) + (-0.6)

2. -0.6 + 1.2 – (-0.4 – 0.6)


3. -0.6 + 1.2 – (-0.4) – (-0.6)


4. 1.2 – (-0.4 – 0.6)
Mathematics
1 answer:
fomenos3 years ago
7 0

Answer:

1st choice

Step-by-step explanation:

Temp at noon was -0.6. It increases 1.2 until 3.

-0.6+1.2

gets colder 0.4, then 0.6.

-0.6+1.2-0.4-0.6

the only correct way to put this equation as one of the other answers is by putting it as -0.6+1.2+(-0.4)+(-0.6)

hope that helped!

You might be interested in
an eagle leaves her nest on the side of a cliff. she soars upward 60 ft and then dives 80 ft. what is her change in elevation af
labwork [276]

Her change is -20ft.

5 0
3 years ago
Write the explicit formula for the geometric sequence 2, 8, 32, 128
Alja [10]
The first term, a, is 2.  The common ratio, r, is 4.  Thus,

a_(n+1) = 2(4)^(n).

Check:  What's the first term?  Let n=1.  Then we get 2(4)^1, or 8.  Is that correct?  No.

Try this instead:

a_(n) = a_0*4^(n-1).  Is this correct?    Seeking the first term (n=1), does this formula produce 2?      2*4^0 = 2*1 = 2.  YES.

The desired explicit formula is   a_(n) = a_0*4^(n-1), where n begins at 1.


3 0
3 years ago
Find the value of each trigonometric ratio.
Tasya [4]

Answer: 40/41

Step-by-step explanation:

The cosine can be represented as adjacent/hypotenuse.  Thus, the cosine of C is 40/41

4 0
3 years ago
Read 2 more answers
A dot plot titled hours of practice this week going from 0 to 4. 0 has 1 dot, 1 has 2 dots, 2 has 0 dots, 3 has 4 dots, and 4 ha
WITCHER [35]

Answer:

1, 2, 3, 5

Step-by-step explanation:

I took the quiz

4 0
3 years ago
[HELP FAST] Write an equation of the line below.
suter [353]

Answer:

y=x-2

Step-by-step explanation:

the line is linear with a slope of 1/1

the y int is -2

plug into y=mx+b

y=x-2

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 7 1/6 subtract 3 5/6 in simplest form
    10·2 answers
  • I'll mark the first and RIGHT answer brainliest! 20 POINTS
    7·1 answer
  • Graph the exponential function.<br> f(x)= -(5/2)^x
    14·1 answer
  • The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day 333 people enter the park, the
    13·1 answer
  • HELP PLEASE!!!
    6·1 answer
  • Brandon buys a radio for $45.85 In a state where the sales tax is 7%.​
    9·2 answers
  • CAN SOMEONE HELP QUICKLY PLEASE
    10·1 answer
  • PLSS HELP ASAP I WILL GIFE H BRAINLIEAST
    6·1 answer
  • X / 2 = 7 find what x represents
    12·1 answer
  • 7
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!