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oksian1 [2.3K]
3 years ago
6

The price of a office chair was $86.00. the tax rate wad 6%.

Mathematics
1 answer:
Rama09 [41]3 years ago
4 0
A. The tax is 5.16, B. 91.16
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Can anybody help me plz I really need help !!!!
kipiarov [429]

Answer:

A) 75%

B) 76

Step-by-step explanation:

A) 39/52=0.75=75%

B)80x0.95=76

4 0
3 years ago
The product of 16 and x is equal to 32
stiks02 [169]

Answer:

x=2

Step-by-step explanation:

16 is half of 32 so it would only be reasonable that x=2 so when you multiply 16x2 you get 32.

Hope this helps :)

3 0
3 years ago
Solve for x
Ivan

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The measures of all angles in this geometry are 90 degrees.

  21x +6 = 90

  21x = 84 . . . . . subtract 6

  x = 4 . . . . . . . divide by 21

5 0
3 years ago
Consider the parabola r​(t)equalsleft angle at squared plus 1 comma t right angle​, for minusinfinityless thantless thaninfinity
kodGreya [7K]

Given:-   r(t)=< at^2+1,t>  ; -\infty < t< \infty , where a is any positive real number.

Consider the helix parabolic equation :  

                                              r(t)=< at^2+1,t>

now, take the derivatives we get;

                                            r{}'(t)=

As, we know that two vectors are orthogonal if their dot product is zero.

Here,  r(t) and r{}'(t)  are orthogonal i.e,   r\cdot r{}'=0

Therefore, we have ,

                                  < at^2+1,t>\cdot < 2at,1>=0

< at^2+1,t>\cdot < 2at,1>=

                                              =2a^2t^3+2at+t

2a^2t^3+2at+t=0

take t common in above equation we get,

t\cdot \left (2a^2t^2+2a+1\right )=0

⇒t=0 or 2a^2t^2+2a+1=0

To find the solution for t;

take 2a^2t^2+2a+1=0

The numberD = b^2 -4ac determined from the coefficients of the equation ax^2 + bx + c = 0.

The determinant D=0-4(2a^2)(2a+1)=-8a^2\cdot(2a+1)

Since, for any positive value of a determinant is negative.

Therefore, there is no solution.

The only solution, we have t=0.

Hence, we have only one points on the parabola  r(t)=< at^2+1,t> i.e <1,0>




                                               




6 0
3 years ago
Which of the following is the definition of term?
vesna_86 [32]
What are the options it gives you?
8 0
3 years ago
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