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3 years ago

-2/-2 simplified as a whole number

Mathematics

1 answer:

Katarina [22]3 years ago

5 0

Answer:

Step-by-step explanation:

I'd prefer to write this expression as -2/(-2). That quotient is 1.

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The line y = -4x -20 meets the x - axis at the point P. Write out the coordinates of P.

Ahat [919]

Answer:

P (- 5, 0 )

Step-by-step explanation:

To find where the line meets the x- axis, let y = 0 , that is

- 4x - 20 = 0 ( add 20 to both sides )

- 4x = 20 ( divide both sides by - 4 )

x = - 5

The coordinates of P are (- 5, 0 )

7 0

3 years ago

In the state of Pennsylvania, each standard automobile license plate number consists of three letters followed by a four-digit n

Ann [662]

Answer:

17,576,000

Step-by-step explanation:

From A to Z, there are 26 possible letter characters (L).

From 0 to 9, there are 10 possible numeric characters (N)

If each standard automobile license plate number in Pennsylvania follows the pattern LLLNNNN, the number of license plates that can be formed is:

$n=26*26*26*10*10*10*10\\n=17,576,000$

17,576,000 distinct license plate numbers can be formed in Pennsylvania.

8 0

4 years ago

Write a pseudocode that prompts the user to keep read numbers until 0 entered, and find how many of those numbers are odd and ho

Lubov Fominskaja [6]

Start

Read number n.

When n = 0 go to End.

Compute r = n / 2,

If decimal part of r = 0 add 1 to Even-count

else add 1 to odd-count

endif

Go to Start

End

Print Even count , Odd count

Stop.

8 0

3 years ago

A square napkin is folded in half on the diagonal and placed on the diameter of a round plate (see diagram below). If the folded

Crank

Answer:

$A=81(\pi-1)\ in^2$

Step-by-step explanation:

step 1

Find the area of the plate

The area of a circle is given by the formula

$A=\pi r^{2}$

we have

$r=18/2=9\ in$ ---> the radius is half the diameter

substitute

$A=\pi (9)^{2}\\A=81\pi\ in^2$

step 2

Find the area of the square napkin folded (is a half of the area of the square napkin)

we know that

The diagonal of the square is the same that the diameter of the plate

Applying Pythagorean theorem

$D^2=2b^2$

where

b is the length side of the square

we have

$D=18\ in$

substitute

$18^2=2b^2$

solve for b^2

$b^2=162\ in^2$ -----> is the area of the square

Divide by 2

$162/2=81\ in^2$

step 3

Find the area of the space on the plate that is NOT covered by the napkin

we know that

The area of the space on the plate that is NOT covered by the napkin, is equal to subtract the area of the square napkin folded (is a half of the area of the square napkin) from the area of the plate

$A=(81\pi-81)\ in^2$

simplify

$A=81(\pi-1)\ in^2$

8 0

3 years ago

Solve by factoring <br> 15x^2 - 25x =0

dalvyx [7]

Answer:

Answer below!

Step-by-step explanation:

$15x^{2} -25x=0\\5x(3x-5)=0\\ \frac{5x}{5}=\frac{0}{5} ;x=0$

3x - 5 = 0

Add 5 to both sides;

3x = 5

Divide both sides by 3;

$x=\frac{5}{3}$

5 0

3 years ago