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irina [24]
3 years ago
12

A library database shows the total number of books checked out at any given time as a negative number. What are the possible num

bers of books that were checked out and checked in on Monday? Explain.

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
7 0

Answer:

LED Lights

Step-by-step explanation:

Blue- Sad

Yellow- Happy

Red-Mad

Green-Disgusting

Purple - Scared

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Math picture, please help
Sergeu [11.5K]

the sum of all interior angles in a polygon is 180(n - 2), where n = number of sides.

well, this is a quadrilateral, so it has 4 sides so it has a total of interior angles of 180(4-2) = 360°, since this is a kite, then <u>one pair of opposite angles are congruent</u>, namely ∡C = ∡A.

360° - 45° - 100° = 215°, and ∡C and ∡A split that evenly, so ∡C = 107.5°.

5 0
3 years ago
Mountain View Middle School students work on square desktops. The area of the square desk surface is 4 square feet. What is the
ahrayia [7]

Answer:

2 Feet

Step-by-step explanation:

The area is found by multiplying length by width. Since its a square the length and width are the same and it would have to be 2.

8 0
3 years ago
Suppose you want to build a small walkway around your garden so that there is someplace to walk around and work on your vegetabl
wolverine [178]

Answer:

Approximately 3.5 feet - Option B

Step-by-step explanation:

Imagine that you have this walkway around the garden, with dimensions 30 by 20 feet. This walkway has a difference of x feet between it's length, and say the dimension 30 feet. In fact it has a difference of x along both dimensions - on either ends. Therefore, the increases length and width should be 30 + 2x, and 20 + 2x, which is with respect to an increases area of 1,000 square feet.

( 30 + 2x ) * ( 20 + 2x ) = 1000 - Expand "( 30 + 2x ) * ( 20 + 2x )"

600 + 100x + 4x^2 = 1000 - Subtract 1000 on either side, making on side = 0

4x^2 + 100x - 400 = 0 - Take the "quadratic equation formula"  

( Quadratic Equation is as follows ) - x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a},

x=\frac{-100+\sqrt{100^2-4\cdot \:4\left(-400\right)}}{2\cdot \:4}:\quad \frac{5\left(\sqrt{41}-5\right)}{2},

x=\frac{-100-\sqrt{100^2-4\cdot \:4\left(-400\right)}}{2\cdot \:4}:\quad -\frac{5\left(5+\sqrt{41}\right)}{2}

There can't be a negative width of the walkway, hence our solution should be ( in exact terms ) \frac{5\left(\sqrt{41}-5\right)}{2}. The approximated value however is 3.5081...or approximately 3.5 feet.

4 0
3 years ago
josh is 6 years older than kim's age. the sum of their ages is less than 31. what is the oldest kim could be?
Yuliya22 [10]

Answer:

24 Years Old

Step-by-step explanation:

Less than 31 is 30 and 30-6=24

4 0
3 years ago
Read 2 more answers
Express each of the following in standard form 0.0 0 0 0 0 0 0 0 0 2 2 1​
Anastasy [175]
answer= 2.21 x 10^-10
3 0
3 years ago
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