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3 years ago

The table shows the time a patient spends at the dentist and the amount of the bill.

Mathematics

2 answers:

Vaselesa [24]3 years ago

7 0

Answer:0.93

Step-by-step explanation:

Maru [420]3 years ago

5 0

The answer for this question is letter D.

This is because correlation coefficient focuses on the linear relationship between two variables. The numbers between -1 and 1 should be one of the value related to the bill. As you can that letter D is the most closest and realistic answer.

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Find the measure of the missing angle Answer: a=

statuscvo [17]

Answer:

C + 88 = 180

-88 -88

C and B = 92

Since C is vertical to B that means both values are the same. Therefore the values of c and b is 92 degrees.

6 0

3 years ago

For each of the following sequences, • Give a formula for the nth term in the sequence, • Give a recursive definition for the se

Andrew [12]

Answer:

(a) $n^{th} = n$

$f(1) = 1$

$f(n) = f(n-1) + 1$

(b) $n^{th} = 2^{n-1}$

$f(1) = 1$

$f(n) = f(n-1) * 2$

$f(1) = 1$

$f(n) = f(n-1) * n$

Step-by-step explanation:

(a) This is a sequence of consecutive number

$n^{th} = n$

$f(1) = 1$

$f(n) = f(n-1) + 1$

(b) This is a sequence of 2 to the power of n - 1. The next number is twice time of this number

$n^{th} = 2^{n-1}$

$f(1) = 1$

$f(n) = f(n-1) * 2$

$n^{th} = n!$

$f(1) = 1$

$f(n) = f(n-1) * n$

5 0

3 years ago

F(x)= x+3 h(x)= x^2+4 Find (f•h)(x)

Dmitrij [34]

Answer:

x³+3x²+4x+12

Step-by-step explanation:

you are going to write both equations and distribute. if there are like terms, combine them and then put it order.

(x + 3) × (x² + 4)

x³ + 4x + 3x² + 12

when putting in order, you want the highest power to the left and then the lowest power to the right.

x³+3x²+4x+12

4 0

3 years ago

Solve the following system of equations algebraically: 4x - 5y = 18 3x – 2y = 10

fiasKO [112]

Answer:

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

8 0

3 years ago

Plz help <img src="https://tex.z-dn.net/?f=%20" id="TexFormula1" title=" " alt=" " align="absmiddle" class="latex-formula">

grandymaker [24]

Cot x= cosx/sinx =√3
tan x= 1/ √3

cos x = √2 /2
x= 45
tan45= 1

tan x= -4/3

csc x= 13/5
1/sin x = 13/5
sin x= 5/13
x=22.62
tan x= 5/12

6 0

3 years ago