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3 years ago

Which list of decimal numbers is in ascending order?

Mathematics

2 answers:

Fittoniya [83]3 years ago

3 0

Answer:

12.252, 12.26, 12.387, 12.4

Step-by-step explanation:

These are the only numbers in a series that are always increasing.

The first series (0.13, 0.31, 0.04, 0.5) and fourth series (6.009, 6.015, 6.241, 6.2) all have an area where they decrease (0.04 and 6.2 respectively).

The second series of numbers is in decreasing order, rather than increasing order. This can not be the answer.

melomori [17]3 years ago

3 0

Step-by-step explanation:

C. will be your answer.

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The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

Ad libitum [116K]

$5^2 + 12^2 = 13^2$

is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

$x^2 + (x+7)^2 = 13^2$

$2x^2 + 14 x + 49 - 169 = 0$

$x^2 + 7x - 60 = 0$

$(x+12)(x-5)=0$

Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

8 0

3 years ago

What is the volume of the pyramid?

Advocard [28]

Volume is 1/3 bh.
11 times 12 is 132. 132 times 1/3 is 44
ANSWER : 44

7 0

3 years ago

Solve for x<br> 6.58-8.36x=3.98x-27.33<br> Round to nearest hundred

Vinil7 [7]

Answer:

6.58-8.36x=3.98x-27.33

Collecting like terms

6.58+27.33=3.98x+8.36x

33.91=12.34x

33.91/12.34=12.34/12.34

x=2.75

5 0

4 years ago

Read 2 more answers

Solve the equation x. If a solution is extraneous, be sure to identify it in your final answer.

Igoryamba

Answer:

x=2 is the only solution

Step-by-step explanation:

The given expression is;

$\sqrt{x+7}-1=x$

Add 1 to both sides of the equation;

$\sqrt{x+7}=x+1$

Square both sides ;

$(\sqrt{x+7})^2=(x+1)^2$

$x+7=x^2+2x+1$

This implies that;

$x^2+2x-x+1-7=0$

$x^2+x-6=0$

Split the middle term

$x^2+3x-2x-6=0$

$x(x+3)-2(x+3)=0$

$(x+3)(x-2)=0$

x=-3,or x=2

Check for extraneous solutions by substituting into the original equation.

When x=-3,

$\sqrt{-3+7}-1=-3$

$\sqrt{4}-1\ne-2$

This is an extraneous solution.

When x=2,

$\sqrt{2+7}-1=2$

$\sqrt{9}-1=2$

$3-1=2$ . This is true

This is not an extraneous solution

6 0

3 years ago

13. After Valentine's Day, boxes of chocolates go on sale and are marked down 10%. The

Anna007 [38]

Answer:

$27.00

Step-by-step explanation:

First, 10% of 30 = 3.

Second, 30 - 3 = 27

Hope this helps!

5 0

3 years ago