Work out 1 2/3 ÷ 2 3/4 ?

Answers

Answer 1
Answer: 1 2/3 = 5/3
2 3/4 = 11/4
5/3 ÷ 11/4 = 5/3 × 4/11
= 20/33

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Given: x - 5 > -2. Choose the solution set. {x | x R, x > -7} {x | x R, x > -3} {x | x R, x > 3} {x | x R, x > 7}

Which of the following is one solution to the expression (ax + b)(cx - d) = 0 ?A. −b

B. d

C. −b/a

D. −d/c

Answers

The answer to your question is C. -b/a

Which of the following is not a correct description of the graph of the function y = -2x - 7?(A) The graph of the function contains the point (−2, −3), and when the value of x increases by 1 unit, the value of y decreases by 2 units.
(B) The graph of the function contains the points (−1, −5), (2, −11), and (4, −15).
(C) The graph of the function is a line that passes through the point (0, −7) with a slope of −2.
(D) The graph of the function contains the points (0, −7), (1, −9), and (3, −1).

Answers

Try graphing the function and go over each answer to see whether or not its true

What is 3 3/2 equal to ?
A . 3 sqrt 9
B . 2 sqrt 9
C.3 sqrt 27
D. 2 sqrt 27

Answers

The correct question will be 3^(3/2) , in words 3 power 3/2
3^(1+1/2)= (3^3)^(1/2)
 = 27^(1/2)
so, sqrt 27 is correct answer

Given: Circle O and Circle Q intersect at R and S;mRVS=60; mRUS=120

Prove: OR is tangent to circle Q
QR is tangent to circle O

Answers

Double squared .12 that is your answer. Your welcome

Find the correct sum of these geometric series..*a1=343, an=-1, r= -1/7

*a1=80, n=7, r= -1/2

*a1= 3, a8=384, r=2

Please help me with these problems.. :(

Answers

1)
a_(1)=343\n a_(r)=-1\nr=- (1)/(7) \na_(r)=a_(1)* q^(r-1) \n-1=343*q^(r-1)\n-1=343* -((1)/(7))^(r-1)\n-7^0=7^3*(- 7)^(-r+1)\n7^0=7^3*7^(-r+1)\nindexes: \n0=3-r+1\nn=4
S_r=a_1 (1-r^n)/(1-r)\nS_r=343* (1- (-(1)/(7) )^4)/(1- (-(1)/(7) ))\nS_r=343* (1- ((1)/(2401) ))/(1+ ((1)/(7) ))\nS_r=343* (((2400)/(2401) ))/(((8)/(7) ))\nS_r=343* (300)/(343) \nS_r=300
2)
S= a_(1)* (1- r^(2) )/(1-r)\n S=80*(1- ( -(1)/(2)) ^(2) )/(1+(1)/(2) )\nS=80* (1- (1)/(4) )/( (3)/(2) )=80* (3)/(4)* (2)/(3) =40
3) we dont know how many numbers has this sequence

The fraction 4/5 is equivalent to which of the following decimals?4
0.8
0.08
0.4

Answers

To convert a fraction to a decimal, divide the numerator by the denominator. 

4 ÷ 5 = 0.8
probably 0.8
 hope i helped