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3 years ago

6

Jamal treated his family to a fancy brunch. Their brunch cost $250, and the local sales tax

1 answer:

kirza4 [7]3 years ago

7 0

Answer:

306.80

Step-by-step explanation:

250 + 4% = 260

260 + 18% = 306.80

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The point (5,-1) is a solution of the equation:y=2x-11<br><br>true or false

irakobra [83]

Answer:

True

Step-by-step explanation:

6 0

3 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

$a_{n}=45-3n$

5 0

2 years ago

Which of the following is a solution of y - x > -3?

Colt1911 [192]

X<<span>y+<span>3 its simple here is your answer</span></span>

4 0

3 years ago

Write 1.375x10-6 in standard form

liq [111]

1 + .3 +.07+.005 x 10 - 6

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3 years ago

Notice that the original recipe calls for 1/4 cup of water. If you put in 3/8 cup of water, by how much have you multiplied the

nika2105 [10]

Answer:

multiply by 12 and would serve 18 people

Step-by-step explanation:

I did a test for it

6 0

3 years ago