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
ivanzaharov [21]
4 years ago
5

Simplify the expression -4.6+( -1.4) .on the test , when maureen simplified the expression she got 3.2 .

Mathematics
1 answer:
Sav [38]4 years ago
4 0

Answer:

Step-by-step explanation:

-4.6+( -1.4)=

-4.6-1.4=-6 maureen is wrong, because both have the minus , so she should add with the minus symbol.

You might be interested in
Find the center of a circle whose end points of a diameter are A (-5,6) and B (3,4)
victus00 [196]

<u>Answer:</u>

(-1, 5)

<u>Step-by-step explanation:</u>

The center of a circle is the midpoint of the diameter.

So we have to calculate the midpoint of the diameter, using this formula:

midpoint = (  \frac{x_{2 }+x_{1}  }{2}  , \frac{y_{2} + y_{1} }{2} )

               =  (\frac{3 + (-5)}{2}  ,  \frac{4 + 6}{2}  )

               = (-1, 5)            

∴ The center of the circle lies at the point (-1, 5).

7 0
2 years ago
find a model for simple harmonic motion if the position at t = 0 is 6, the amplitude is 6 centimeters, and the period is 4 secon
Y_Kistochka [10]

Answer:

y = 6cos(π/2)t

Step-by-step explanation:

Given in the question that,

in a simple harmonic motion in which

at t=0 the amplitude is 6 cm, so the simple harmonic motion will be in cosine form. As in case of sine function, the value of function at t=0 is 0.  

And,

the period is given as 4 sec

We know that model equation of simple harmonic motion is

<h3>y = a. cosb(t + c) + d</h3>

here,

a is amplitude

c is Horizontal shift or phase shift

d is Vertical shift

<h3>Step1</h3><h3>Find b</h3>

Period = 2 π / b

4 = 2π / b

b = 2π/4

b = 1π/2

<h3>Step2</h3><h3>Find shifts</h3>

Horizontal and vertical shifts are 0.

So, c = 0 and d = 0

<h3>Step3</h3><h3>Plug those values in the above in the equation</h3>

y = 6cos π/2 (t + 0) + 0

y = 6cos(π/2)t

4 0
4 years ago
A carpet costs $15 per square foot. If the area you want to carpet is 19.7 square meters, how much will it cost to buy the carpe
EleoNora [17]
$ 295 because you can multiple 15×19.7 is =295.5
5 0
3 years ago
April is going to the bakery to purchase donuts and cinnamon rolls for the office personnel. She must purchase at least 30 items
evablogger [386]

Answer:

d + r ≥ 30

$0.75d + $1.25r ≤ $30

Step-by-step explanation:

Given the following :

Number of items to purchase = atleast 30

Total cost must be no more than 30

cost of donut (d) = $0.75

Cost of cinnamon (r) = $1.25

Number of donuts and cinnamon to purchase

To total number of items :

Donut + cinnamon ≥ 30

d + r ≥ 30

Cost of items to purchase :

Cost = price per item * number of items

$0.75d + $1.25r ≤ $30

5 0
3 years ago
What is 8c-4-2c + 5 simplified?
xeze [42]

Answer:6c+1

Step-by-step explanation:

i think it’s that

8 0
3 years ago
Other questions:
  • Which expression shows a sum of three terms? (1 point)
    14·2 answers
  • What is f(4.5) what si the value of x for which f(x)=3?
    10·1 answer
  • A set of equations is given below:
    12·1 answer
  • Ms. Cubbatz invested a sum of money in a certificate of deposit that earns 8% interest compounded continuously. The formula for
    7·1 answer
  • Temperatures in the Gobi Desert reach −30°F in the winter and 85°F in the summer. Find the range (Difference) of the temperature
    6·1 answer
  • the coordinates of the endpoints of ab and cd are a(x1, y1), b(x2, y2), c(x3, y3), and d(x4, y4). which condition proves that ab
    8·2 answers
  • A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at th
    10·1 answer
  • How do you find the surface area for a cylinder? Steps please.
    14·1 answer
  • I need help with part b please and thank you
    5·1 answer
  • this dot plot is symmetric and the data set has no extreme values what is the best measures of center for this dot plot
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!