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
vova2212 [387]
3 years ago
8

A new chewing gum has been developed that is helpful to those who want to stop smoking.

Mathematics
1 answer:
kaheart [24]3 years ago
7 0
40% Of people will stop smoking.
You might be interested in
How to get 813 with exponents parentheses in three different operations
LenKa [72]

Answer:

813 = 800 + 10 + 3 = (8 \times 10^{2} ) + ( 1\times 10^1 ) + ( 3 \times 10^0 )  

Step-by-step explanation:

i) 813 = 800 + 10 + 3 = (8 \times 10^{2} ) + ( 1\times 10^1 ) + ( 3 \times 10^0 )  

4 0
2 years ago
A store pays $85 for a picnic table and marks the price up by 25%. What is the new price ​
Setler79 [48]
106


Mark brainliest please


Hope this helps you
7 0
2 years ago
Read 2 more answers
Which of the following is a solution to 2cos2x − cos x − 1 = 0?
Pavel [41]

Answer:

Option A is correct.

Solution for the given equation is, x = 0^{\circ}

Step-by-step explanation:

Given that : 2\cos^2x -\cos x -1 =0

Let \cos x =y

then our equation become;

2y^2-y-1= 0           .....[1]

A quadratic equation is of the form:

ax^2+bx+c =0.....[2] where a, b and c are coefficient and the solution is given by;

x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}

Comparing equation [1] and [2] we get;

a = 2 b = -1 and c =-1

then;

y = \frac{-(-1)\pm \sqrt{(-1)^2-4(2)(-1)}}{2(2)}

Simplify:

y = \frac{ 1 \pm \sqrt{1+8}}{4}

or

y = \frac{ 1 \pm \sqrt{9}}{4}

y = \frac{ 1 \pm 3}{4}

or

y = \frac{1+3}{4} and y = \frac{1 -3}{4}

Simplify:

y = 1 and y = -\frac{1}{2}

Substitute y = cos x we have;

\cos x = 1

⇒x = 0^{\circ}

and

\cos x = -\frac{1}{2}

⇒ x = 120^{\circ} \text{and} x = 240^{\circ}

The solution set:  \{0^{\circ}, 120^{\circ} , 240^{\circ}\}

Therefore, the solution for the given equation  2\cos^2x -\cos x -1 =0 is, 0^{\circ}





8 0
3 years ago
Read 2 more answers
Solve for a<br><br> =50=15a<br> Simplify your answer as much as possible.
Ivan
3.3333333333..... is the answer
4 0
3 years ago
Read 2 more answers
Can you guys help me? Best answer gets branliest
Rus_ich [418]

Answer:

its less than one i think cause ive answered this same question not to long ago

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • HELP ASAP WORTH 68 points<br> The product of which expression contains four decimal places?
    6·2 answers
  • What is the perimeter of the triangle shown on the coordinate plane, to the nearest tenth of a unit? 20.6 units 22.7 units 25.6
    6·2 answers
  • Determine the period of this function a. 6p c. 1 b. 4p d. -1
    6·1 answer
  • FIND THE FOLLOWING QUOTIENT -56/-8. Is there a quotient or is it undefined??
    7·1 answer
  • What is the solution set of the equation using the quadratic formula? x2+6x+10=0 {−3+2i,−3−2i} {−6+2i,−6−2i} {−3+i,−3−i} {−2i,−4
    11·1 answer
  • Bonny's Truck has a fuel tank
    5·1 answer
  • a ceramic bowl weighs 340 grams when empty. it is then filled with sugar. one tablespoon of sugar weighs 12.5 grams. write an eq
    11·1 answer
  • Identify the range of the following data set.<br> 20, 22, 58, 48, 32, 20, 23
    13·2 answers
  • Look at this graph:
    9·1 answer
  • What is 3/8 as a decimal
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!