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3 years ago

How far apart is -15 and positive 20

Mathematics

2 answers:

Stels [109]3 years ago

5 0

It is 35 because when you add 35 with -15, you get the sum of 20

TEA [102]3 years ago

3 0

The answer is 35. Because 15 plus 20 is 35.

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3 years ago

5. A deck should have a perimeter of 90 feet and a minimum area

Ket [755]

Answer:

The minimum value of the width is 15 ft and the maximum value of the width is 30 ft

Step-by-step explanation:

Let

x -----> the length of the deck

y ----> the width of the deck

we know that

The perimeter of the deck is equal to

$P=2(x+y)$

$P=90\ ft$

$90=2(x+y)$

$45=(x+y)$

$x=45-y$ -----> equation A

The area is equal to

$xy\geq 450$ -----> inequality B

$(45-y)y\geq 450\\ \\-y^{2} +45y-450\geq 0$

Solve the quadratic equation by graphing

The possible width of the deck are the values of y in the interval

[15,30]

All real numbers greater than or equal to 15 ft and less than or equal to 30 ft

see the attached figure

The minimum value of the width is 15 ft and the maximum value of the width is 30 ft

7 0

3 years ago

Coach Rivera purchases sports equipment. Baseball bats cost $45.00 each, and

Rama09 [41]

D because of since and the world

5 0

3 years ago

What is answer to -14r-19=303

zubka84 [21]

-14r = 303 + 19
-14r = 322
r = -322/14

r = -23

$\boxed{\huge{\sf{r=-23}}}$

4 0

3 years ago

The graphs of quadrilateral LMNO and its image are shown below.

Arada [10]

Hello!

First of all let's look at points L and L'. The coordinates for L are (-5,-4) and the coordinates for L' are at (0,3).

First of all let's think about the vertical translation. This is the change in the y-axis. As you can see, the difference of 3 and -4 is 7. This means there was a vertical translation of 7, or it was moved up 7 units.

Now we have the horizontal translation, or the change in the x-axis. The difference of -5 and 0 is 5. Therefore it had a horizontal translation of 5.

(-5,-4)⇒(0,3) was translate up 7 units and translated right 5 units.

I hope this helps!

8 0

3 years ago