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
Rina8888 [55]
3 years ago
8

The difference between 3 1/2 and 1 4/5 is _____. ILL GIVE BRAINLIEST!!!!!!

Mathematics
2 answers:
AURORKA [14]3 years ago
8 0

1 7/10

Step-by-step explanation:

In decimal, ...

... 3.5 - 1.8 = 1.7 . . . . . 1 7/10

As mixed numbers, ...

... 3 1/2 - 1 4/5 = 3 5/10 - 1 8/10 = (3-1) +(5/10 -8/10)

... = 2 -3/10 = 1 7/10

iVinArrow [24]3 years ago
4 0

Answer:

17/10 or 1.7

Step-by-step explanation:

3 1/2 and 1 4/5

=7/2-9/5

=17/10

=1.7 is the answer........................

You might be interested in
Rhonda bought a new laptop for $800. The laptop depreciates, or loses, 20% of its value each year. The value of the laptop at a
zhuklara [117]

As per the problem,

Rhonda bought a new laptop for $800.

The laptop depreciates, or loses, 20% of its value each year.

The value of the laptop at a later time can be found using the formula

A=P(1-r)^t.....(1)

Here we have

P=$800

r=20%=0.20

t=2 years

Substitute the values in equation (1) we get

A=800(1-0.2)^2\\ \\ \Rightarrow A=800(0.8)^2\\ \\ \Rightarrow A=800*0.64\\ \\ \Rightarrow A=512\\

The laptop be worth in two years will be $512.

6 0
3 years ago
(3n^2+13n^3+5n)-(7n+4n^3)
Fantom [35]

Answer: n*(3n+2)*(3n-1)

Step-by-step explanation:

4 0
3 years ago
(7 + 7i)(2 − 2i)
Ostrovityanka [42]

The complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

We have a complex number shown in the picture:

-7i(3 + 3i)

= -7i

In trigonometric form:

z = 7 (cos (90) + sin (90) i)

= 3 + 3i

z = 4.2426 (cos (45) + sin (45) i)

\rm 7\:\left(cos\:\left(90\right)\:+\:sin\:\left(90\right)\:i\right)4.2426\:\left(cos\:\left(45\right)\:+\:sin\:\left(45\right)\:i\right)

\rm =7\left(\cos \left(\dfrac{\pi }{2}\right)+\sin \left(\dfrac{\pi }{2}\right)i\right)\cdot \:4.2426\left(\cos \left(\dfrac{\pi }{4}\right)+\sin \left(\dfrac{\pi }{4}\right)i\right)

\rm 7\cdot \dfrac{21213}{5000}e^{i\dfrac{\pi }{2}}e^{i\dfrac{\pi }{4}}

\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}

=21-21i

After converting into the exponential form:

\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}

From part (b) and part (c) both results are the same.

Thus, the complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

Learn more about the complex number here:

brainly.com/question/10251853

#SPJ1

3 0
2 years ago
Can someone help me with the areas?
9966 [12]

Answer:

for 1. it is 99 and for 3. it is 343.75

Step-by-step explanation:

for 1. you have to just multiply the length with width

for 3. you have to add both bases (35+20) and multiply the height (55 x 12.5) to it and then divide it by 2 (687.5 / 2)

hope this helps! please heart <3

8 0
2 years ago
Read 2 more answers
C= 6x+100 and c=10x+80 <br> what number does x have to be for c to be the same on each equation?
slega [8]

Answer:

x= 5 , for c to be same on each eqn

7 0
2 years ago
Other questions:
  • Please help fast!
    14·1 answer
  • What 5.64*0.79 eqaul to
    12·2 answers
  • 0.01 is...........0.01
    13·1 answer
  • A cylinder has a surface area of 339cm. The radius is two times greater than the height. what is the radius of the cylinder.
    13·1 answer
  • What is 4(x-2) in expanding expressions
    9·1 answer
  • A movie theater charges $10 per ticket and seven dollars for each bucket of popcorn write the equation in slope intercept form t
    11·1 answer
  • 11 x (3+3) - (66/11) - 3
    12·2 answers
  • A company that makes​ hair-care products had 4,000 people try a new shampoo. Of the 4,000 ​people, 16 had a mild allergic reacti
    10·1 answer
  • For brainliest please help!
    11·1 answer
  • * Which expression is equivalent to 7(p + 5) *​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!