2 years ago

Need help solving this problem.

Mathematics

1 answer:

romanna [79]2 years ago

6 0

Answer:

The measure of angle CDE is 37 degrees

Step-by-step explanation:

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Tracy was given a bag of 250 colored marbles .She randomly chose marble , recorded its color in the table ,and returned it to th

jok3333 [9.3K]

Answer:

Did you ever figured it out?

Step-by-step explanation:

5 0

2 years ago

10. An arithmetic sequence has this recursive formula. What is the explicit formula?

Mrrafil [7]

Answer:

$a_{n}=45-3n$

Step-by-step explanation:

Method 1:

Arithmetic sequence is in the form

$a_{n} =a_{1} +(n-1)d\\$

d is the common difference, can be found by:

$d=a_{n}-a_{n-1}=-3$

Subtituting the $a_{1}$ and $d$

You get:

$a_{n}=42+(-3)(n-1)=45-3n$

Method 2 (Mathematical induction):

Assume it is in form $a_{n}=45-3n$

Base step: $a_{1} =45-3(1)=42$

Inducive hypophesis: $a_{n}=45-3n$

GIven: $a_{n+1} =a_{n}-3$

$a_{n+1}=45-3n-3=45-3(n+1)$

Proved by mathematical induction

$a_{n}=45-3n$

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3 years ago

Factor the four-term polynomial ab + ac - 4b - 4c

Troyanec [42]

A b + a c - 4 b - 4 c = a ( b + c ) - 4 ( b + c ) =
= (b + c) (a - 4)

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2 years ago

Find the slope of (9,8) and (5,1)

8_murik_8 [283]

Answer:

Slopem=74

As a decimal:

m = 1.75

Step-by-step explanation:

8 0

2 years ago

Question 7 of 10

Vsevolod [243]

Answer:

g(x) = –3(x + 6)2 + 48.

Step-by-step explanation:

The graph of f(x) = x2 is shifted right 6 units. The graph of f(x) = x2 is shifted down 48 units. The graph of f(x) = x2 is reflected over the y-axis.

6 0

2 years ago

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