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
ratelena [41]
2 years ago
10

Please help me with this math problem who ever does first gets 100 points

Mathematics
2 answers:
umka2103 [35]2 years ago
7 0

Answer:

\displaystyle{ -  \frac{3}{5}  +  \frac{1}{3} }

  • LCM of 5 and 3=15.

So,

\displaystyle \:   \frac{-3 \times 3 + 1 \times 5}{15}

\displaystyle   \frac{-9 + 3}{15}

\displaystyle \frac{-4}{15}

Leona [35]2 years ago
4 0

Answer:

-\frac{4}{15}

Step-by-step explanation:

\frac{-3}{5} +\frac{1}{3}

\frac{-9}{15} +\frac{5}{15}

\frac{-9+5}{15}

\frac{-4}{15}

You might be interested in
Trigonometry, can anybody help??
WINSTONCH [101]

Answer:

angle B: 39

AC: 7.288

AB: 11.58

(note: you cut off the part about rounding so make sure that it's rounded correctly before you put in your answer)

Step-by-step explanation:

To solve this we will use SOH, CAH, TOA

we have the angle and the one opposite to it which means we can use either SOH or TOA

let's use TOA

tan(51)=(9/x)

x= 7.288

We can now use pahtagaryous theroem to solve for the hyptonouse

we have

9²+7.288²=C²

C=11.58

Finally, to find angle B we will recall that the angles of a triangle must add to 180.

51+90+a=180

a=39

5 0
3 years ago
Sherlock Holmes was sitting comfortably on an armchair on a snowy day. Dr. Watson was sitting beside him reading a book near the
ladessa [460]
The riddle given by Dr. Watson to Sherlock Holmes is:

217 is to 335
896 is to 543
345 is to ____

We need to find the missing number of the third pair of the riddle. This is a ratio and proportion problem.

217/ 335 = 896/ 543 = 345 / x

The value of x is 209. 
8 0
3 years ago
susan bought a calculator for $120. She had to pay a sales tax of 10% on the price. How much change would she receive from $140?
guapka [62]

Well for starters 10% of 120$ is 12$. 120+12=134...

This means 140 - 134=6

Answer: $6 of change

5 0
3 years ago
Which board geometrically represents 4x2 – 1 using algebra tiles? An algebra tile configuration showing only the product spot, w
NemiM [27]

An algebra tile configuration shows only the product spot, which has 9 tiles in 3 columns with 3 rows. First row: 2 + x squared, 1 + x. Second row: 2 + x squared, 1 + x. Third row: 2 negative x, 1 negative.

The correct option is B.

Given

Equation; \rm 4x^2 - 1

<h3>Quadratic equation</h3>

It is a polynomial that is equal to zero.

Polynomial of variable power 2, 1, and 0 terms are there.

Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.

4x² -1 = 0 is a quadratic equation.

An algebra tile configuration showing only the product spot, which has 9 tiles in 3 columns with 3 rows. First row: 2 + x squared, 1 + x. Second row: 2 + x squared, 1 + x. Third row: 2 negative x, 1 negative.

Then,

The factors of the polynomial is;

\rm 4x^2 - 1=0\\\\ 4x^2-2x+2x-1=0\\\\ 2x(2x-1)+1(2x-1)=0\\\\(2x-1)(2x+1)=0

Hence, an algebra tile configuration shows only the product spot, which has 9 tiles in 3 columns with 3 rows. First row: 2 + x squared, 1 + x. Second row: 2 + x squared, 1 + x. Third row: 2 negative x, 1 negative.

More about the quadratic equation link is given below.

brainly.com/question/2263981

7 0
2 years ago
A fair sold a total of 3,300 tickets on friday and saturday. it sold 100 more on friday than on saturday.how many tickets did th
IgorLugansk [536]
On Saturday - x tickets
on Friday - (x + 100)
altogether
x+x+100=3300
2x=3200
x=1600
x+100=1600+100=1700
1700 on Friday

7 0
3 years ago
Other questions:
  • Complete the solution of the equation. find the value of y when equals 2. -3x-8y=10
    15·1 answer
  • 25°C is what in Fahrenheit?
    8·2 answers
  • Perform the following operation and express the answer in scientific notation. 3.8×10^-5 ÷ 8.1×10^3​
    6·1 answer
  • To the nearest square unit, what is the area of the regular heptagon shown below?
    10·2 answers
  • you have 1 case of soap bars and there are 150 bars in a case. you have 300 bars of soap per day. how many cases do you need to
    5·1 answer
  • Which two expressions are equivalent to 20 + 48 ?
    11·1 answer
  • 2x + y + z = 9<br> -x-y +z = 1<br> 3x - y +z=9
    5·1 answer
  • 1. From 1992 to 2007 the average home price increased by 8% per year. In 1992 Anita Bath
    8·1 answer
  • HELP ME WORTH 100 POINTS PLS (AND ACTUALLY ANSWER THE QUESTIONS)
    6·1 answer
  • (Please help!!!)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!