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IrinaVladis [17]
3 years ago
14

Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles

can be written in the form y=mx+b with m < 0. What is b?
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0
B=30/7 and 80/7

hope this helps<3

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The points on the graph show how much Chef Allen pays for different amounts of beans
Leni [432]

Answer:

See explanation

Step-by-step explanation:

The ordered pair (25,20) shows that Chef Allen pays $20 for 20 pounds of beans. The ratio of pounds to dollars is

\dfrac{25}{20}=\dfrac{5}{4}

A. Another plotted points are (5,4), (10,8), (15,12) and (20,16). Find the ratio of pounds to dollars in each case:

(5,4):\ \ \ \dfrac{5}{4}\\ \\(10,8):\ \ \ \dfrac{10}{8}=\dfrac{5}{4}\\ \\(15,12):\ \ \ \dfrac{15}{12}=\dfrac{5}{4}\\ \\(20,16):\ \ \ \dfrac{20}{16}=\dfrac{5}{4}

All points show the same ratio.

B. The line connecting given points is the graph showing how much Chef Allen pays for different amounts of beans. This line starts at the origin (0,0) and passes through the points (5,4), (10,8), (15,12) and (20,16).

C. If he cost of 25 pounds of beans is $20, then the cost of 50 pounds of beans is $40.

7 0
3 years ago
Read 2 more answers
F(n)=4n-3 find the 15th term of the sequence defined by the explicit rule
pickupchik [31]

Answer:

57

Step-by-step explanation:

f(15)=4(15)-3

f(15)=60-3

f(15)=57

Hope that helps, tell me if you need more help

7 0
2 years ago
Read 2 more answers
The population of a small town, P, as a function of time, t, in years past 1940 is given below.
romanna [79]

Answer: 1976

Steps:

Let t* be the year in which the population reached a count of 8920. Solve for t*:

P=200t+1720\\8920=200t^*+1720\\7200=200t^*\\t^* = 36

The population grew to the number 8920 in 36 years past 1940, i.e., 1976

3 0
3 years ago
Read 2 more answers
2. Which is a true statement about the table below?<br> Please answer honestly
Setler [38]

Answer:

A. it is a function because each input value has exactly one output.

Step-by-step explanation:

A relation is considered to be a function when each domain value (input), X, of the function has exactly one range value (output), Y, that is related to it. This means a domain value, X, (input) of a function cannot have two different range values (output) that are related to it.

However, two or more different domain values (input) can give the same range value (output).

The table of values given shows different input values, of which each has exactly one output value. However, the different input values give the same output.

Therefore, "it is a function because each input value has exactly one output".

6 0
2 years ago
Find the coefficient of x in the expansion of (x+7). Using the triangle.
andrew11 [14]

Answer:

wouldnt it b 1

Step-by-step explanation:

5 0
2 years ago
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