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3 years ago

Question 15

Mathematics

1 answer:

BigorU [14]3 years ago

6 0

Answer:

The answer is $22.77.

Step-by-step explanation:

15%=$2.97

7% tax= $1.30

18.50+1.30=19.80

2.97+19.80=22.77

Total: $22.77

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Which of the following is the difference of two squares

Roman55 [17]

Answer:

2nd option

Step-by-step explanation:

A difference of squares has the general form

a² - b²

where the terms on either side of the subtraction ( the difference ) are both perfect squares.

The only one fitting this description is

16a² - 4y²

= (4a)² - (2y)² ← difference of squares

7 0

2 years ago

PLEASE HELP LOOK AT THE PICTURE I NEED HELP NOWWWW!!!! WILL GIVE 20 POINTSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Verdich [7]

Answer:

A. 35

Step-by-step explanation:

√35 = 5.9160797830996160425673282915616170484155012307943403228797196691

6 0

3 years ago

Read 2 more answers

Find the series shown.

solmaris [256]

Answer:

C $11+13+15+17+...$

Step-by-step explanation:

Consider the series

$\sum\limits_{n=3}^{\infty}(2n+5)$

The nth term of series is $a_n=2n+5$

The bottom index tells you that n starts changing from 3, so

$a_3=2\cdor 3+5=11\\ \\a_4=2\cdot 4+5=13\\ \\a_5=2\cdot 5+5=15\\ \\a_6=2\cdot 6+5=17\\ \\...$

Thus, the sum of all terms is

$11+13+15+17+...$

8 0

3 years ago

Write an equation that models the sequence 400, 200, 100, 50, ...

Julli [10]

You're starting at 400. Each time you're cutting in half.

So the common ratio is 1/2 which means the equation is

$\Large y = 400(1/2)^{x-1}$

which is in the geometric sequence format. So the answer is choice D

3 0

3 years ago

Read 2 more answers

1. y2 + 5y –24<br>stem by stem math please..

spayn [35]

Answer:

(y+8) (y-3)

Step-by-step explanation:

y2+5y-24

=y2+8y-3y-24

=y(y+8)-3(y+8)

=(y+8) (y-3)

5 0

3 years ago