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3 years ago

What is the value of X^2-4y/2 if x=4 and y=-3

Mathematics

1 answer:

Dominik [7]3 years ago

3 0

To solve this, we just need to plug in the numbers.

4^2-4*3/2

Now solve!

4^2-4*3/2

16-4*9

16-36

-20

There's your answer!

Any questions?

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The width of a rectangle is 6 2/3 inches. The length of the is twice it’s width. What so the perimeter of the rectangle?

Nookie1986 [14]

$\text {Width = } 6\dfrac{2}{3} \text { inches}
$

The length is twice its width:
$\text {Length = } 2 \times 6\dfrac{2}{3} \text { inches}$

Change to improper fraction:
$\text {Length = }2 \times \dfrac{20}{3} \text { inches}$

Combine into single fraction:
$\text {Length = } \dfrac{40}{3} \text { inches}$

Find Perimeter :
$\text {Perimeter = Length + Length + Width + Width}$

$\text {Perimeter = } \dfrac{40}{3} + \dfrac{40}{3} + \dfrac{20}{3} + \dfrac{20}{3} = \dfrac{120}{3} = 40 \text { inches}$

$\bf \text {Answer: Perimeter = 40 inches}$

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3 years ago

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likoan [24]

Answer: Supplementary

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2 years ago

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I need 16 1/5 yards of yarn. I need to make costumes I need 5 2/5 each. How many can I make?

AfilCa [17]

Answer:

the answer is going to 3

8 0

2 years ago

Which of the following is the greatest * -6*10 O -6 - (-10) -6 - 10 -6 + -10

kramer

Answer:

-6-(-10)=4

Step-by-step explanation:

Well,

-6*10= -60

0=0

-6-(-10)= -6+10=4

-6-10=-16

-6+-10=-16

7 0

2 years ago

FIND THE AREA of this polygon

vodomira [7]

Answer:

rectangle

A = l x w

3x5=15

triangle

= 1/2 bh

1/2 x 3 x 1 1/2 =0.75

Step-by-step explanation:

rombus=

a=xy

3x5=15

30+0.75=30.75

3 0

2 years ago