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3 years ago

Please help meeee! !!!

Mathematics

1 answer:

marshall27 [118]3 years ago

8 0

Answer:

c) $ 12.00

Step-by-step explanation:

$78.20 x 15%= 11.75

round up

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what is the recursive definition and explicit formula of the sequence 3, 5.5, 8, 10.5, 13, 15.5? I know the pattern is +2.5

Delicious77 [7]

Answer:

$a_{n}$ = $a_{n-1}$ + 2.5

Step-by-step explanation:

This is an arithmetic sequence with common difference d = 2.5

The recursive formula allows any term in the sequence to be found by adding d to the previous term, thus

$a_{n}$ = $a_{n-1}$ + 2.5 ← recursive formula with a₁ = 3

5 0

4 years ago

Rich is driving from Philadelphia to Pittsburgh at 70 mos and Michelle is diving from Pittsburgh to Philadelphia at 65 mph if Ph

zaharov [31]

It will take about 2 hours and 15 minuets

Hope this helped!

6 0

3 years ago

Read 2 more answers

3(-X+4)=7x-8. Yeahhhh...

katovenus [111]

Hey there!☺

$Answer:\boxed{x=2}$

$Explanation:$

$3(-x+4)=7x-8$

Let's start by simplifying both sides. First, we distribute.

$(3)(-x)+(3)(4)=7x+-8$

$-3x+12=7x+-8$

$-3x+12=7x-8$

Now let's subtract 7x from both sides.

$-3x+12-7x=7x-8-7x\\-10x+12=-8$

Now we will subtract 12 from both sides.

$-10x+12-12=-8-12\\-10x=-20$

In our last/final step, we will divide both sides by -10.

$\frac{-10x}{-10}=\frac{-20}{-10}$

Now simplify -20/-10.

$-20/-10=2$

$x=2$

Hope this helps!

8 0

4 years ago

Determine the length of side QR in the following triangle

Jobisdone [24]

The length of the side QR in the task content can be determined as; 12.22cm.

<h3>What is the length of the third side QR?</h3>

It follows from the task content that 2 lengths and one included angle are given in the task content. It therefore follows that the length of side QR can be evaluated by the cosine rule as follows;

QR² = 13² + 4² - (2×4×13×cos70)

QR = √149.4

QR = 12.22cm