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mr_godi [17]
3 years ago
13

A bookcase has 4 shelves. The bottom shelf has 10 books. Each of the other shelves has 5 more books than the shelf below it. How

many books are in the bookcase.
Mathematics
2 answers:
Pani-rosa [81]3 years ago
7 0

Answer:

70

Step-by-step explanation:

Leto [7]3 years ago
5 0
It would have a total of 70 books.
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CAN SOMEONE PLEASE HELP ME???
KATRIN_1 [288]

Answer:

Option A, x ≥ -2

Step-by-step explanation:

<u>Since the line is not dotted, that means that -2 is included.  Also, since the darkened part is toward positive infinity, that means that it is ≥.</u>

<u />

So, it is <em>x ≥ -2</em>

Answer:  Option A, x ≥ -2

5 0
3 years ago
A tennis player wins a match 55% of the time when she serves first and 47% of the time when her opponent serves first. The playe
Ray Of Light [21]

ok so she has a 50% chance of serving first so if she serves first she has a 55% percent chance of winning multiply .55 and .50 to get .275 now she also has a 50% chance of not serving first so multiply .47 and .50 to get .235 now that you have the two probabilities of her winning you add them together so .275+.235 = .51 so she has a <u>51%</u> chance of winning the game
8 0
3 years ago
Two sides of a triangle are 12 and 15. Which inequality represents the solution to finding x, the third side.
Vikentia [17]

Answer:

the other side would be 15

Step-by-step explanation:

because 15 is bigger than 12 and the 12 is the bottom line and then the other line going up is 15 so it's equal.

4 0
2 years ago
Hurry 50 points for correct answer
Ad libitum [116K]

Answer: <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

Step-by-step explanation:

The equation x=\sqrt{6x+7} can be solved by squaring both sides:

x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

1 = \sqrt{-1}\\ 7 = \sqrt{49}

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

4 0
3 years ago
Help please <br> I need this today
Katen [24]
Triangles a are similar because they have the same degrees

And Triangles d are similar because they are the same shape
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3 years ago
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