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3 years ago

A bookstore is having a sale. Every book is $3 off, regardless of the original price.

Mathematics

2 answers:

Kitty [74]3 years ago

5 0

B is the correct answer

kolezko [41]3 years ago

4 0

The correct answer is B

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which of the following could be side lenths of a right triangle? A.) 0.9cm, 1.2cm, 1.5cm B.) 0.9cm, 1.5 cm, 1.5cm C.) 0.9 cm, 1.

Gwar [14]

Answer:

The answer A

Step-by-step explanation:

B: You need a side that is longer than 2 equal sides. B is incorrect.

A: Try

9^2 + 12^2 = 15^2 if that works, A will work.

81 + 144 = 225

This works. I used these numbers because they were easier to see.

0.9^2 + 1.2^2 = 1.5^2

0.81 + 1.44 = 2.25

2.25 = 2.25

That is the answer A

But we have to check the other two.

0.9^2 = 0.81

1.2^2 = 1.44

1.8^2 = 3.24 This won't work. 3.24 is just too big.

0.9^2 = 0.81

0.6^2 = 0.36

1.5^2 = 2.25 It's too far away.

5 0

3 years ago

What is the distributive property of 75x6

ohaa [14]

That would be 60 and 15

5 0

3 years ago

Read 2 more answers

Find the missing side of each triangle. leave your answers in simplest radical form

dedylja [7]

X^2 = 4^2 - (2√3)^2
x^2 = 16 - 12
x^2 = 4
x = 2

answer
x = 2 cm

7 0

3 years ago

Write the verbal sentence as an equation. let y represent the number

viktelen [127]

Answer:

Marcus is picking songs to play during a slideshow. The songs are each 3\dfrac123

3, start fraction, 1, divided by, 2, end fraction minutes long. The slideshow is 31\dfrac1231

31, start fraction, 1, divided by, 2, end fraction minutes long.

Step-by-step explanation:

8 0

3 years ago

What is the sum of the first 37 terms of the arithmetic sequence?

lidiya [134]

Answer:

The sum of the first 37 terms of the arithmetic sequence is 2997.

Step-by-step explanation:

Arithmetic sequence concepts:

The general rule of an arithmetic sequence is the following:

$a_{n+1} = a_{n} + d$

In which d is the common diference between each term.

We can expand the general equation to find the nth term from the first, by the following equation:

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

The sum of the first n terms of an arithmetic sequence is given by:

$S_{n} = \frac{n(a_{1} + a_{n})}{2}$

In this question:

$a_{1} = -27, d = -21 - (-27) = -15 - (-21) = ... = 6$

We want the sum of the first 37 terms, so we have to find $a_{37}$

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

$a_{37} = a_{1} + (36)*d$

$a_{37} = -27 + 36*6$

$a_{37} = 189$

Then

$S_{37} = \frac{37(-27 + 189)}{2} = 2997$

The sum of the first 37 terms of the arithmetic sequence is 2997.

6 0

3 years ago