2 years ago

Explain why parallelograms are always quadrilaterals but quadrilaterals are sometimes parallelograms

Mathematics

1 answer:

Gnoma [55]2 years ago

7 0

Im sure this website will help answer.com

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The Foot Locker is having a 60% off sale on shorts. John paid $18 for a pair of shorts. What was the original price of the short

AURORKA [14]

Answer:

$30 is the price of the original pair of sneakers.

Step-by-step explanation:

You wanna cross multiply so you put :

18. 60

_ = _

x. 100

You multiply 18 the cost of the sneakers by 100 and then divide the product (1800) by 60 and you get $30.

MARK ME AS BRAINLIEST!

6 0

1 year ago

Lance has three times as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?

hoa [83]

Is 47 l think !!!!!!!!!!!!!!!!!!!!!

6 0

2 years ago

The steps to derive the quadratic formula are shown below: Step 1 ax2 + bx + c = 0 Step 2 ax2 + bx = − c Step 3 x2 + b over a ti

Nostrana [21]

Answer:

$x + \frac{b}{2a} = \frac{+/ - \sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

Step 1:

$ax^2+bx+c = 0$

Step 2:

$ax^2+bx = -c$

Step 3:

$\frac{ax^2+bx}{a} = \frac{-c}{a}$

Step 4:

Adding $\frac{b^2}{4a^2}$ to both sides to complete the square

$x^2 + \frac{bx}{a} + \frac{b^2}{4a^2} = \frac{-c}{a} + \frac{b^2}{4a^2}$

Step 5:

$x^2 + \frac{bx}{a} + \frac{b^2}{4a^2} = \frac{-4ac+b^2}{4a^2}$

Step 6:

Taking square root on both sides

$x + \frac{b}{2a} = \frac{+/ - \sqrt{b^2-4ac} }{2a}$

3 0

1 year ago

Given a soda can with a volume of 36 and a diameter of 4, what is the volume of a cone that fits perfectly inside the soda can?

Tomtit [17]

First we need to find the heigh of the soda can be rearanging the volume formula, $V = pi * r^2* h$ . We can make that $h = \frac{V}{pi * r^2}$ We know that V is 36 and radius is half of the diameter, so radius is 2. $h = \frac{36}{pi * 2^2}$
$h = \frac{36}{pi * 4}$
h = 2.87

Now, we can use the height to figure out the volume of a cone. The volume of a cone is $V = pi * r^2 * \frac{h}{3}$
R is 2 again and h is 2.87
$V = pi * 2^2 * \frac{2.87}{3}$
$pi * 4 * .96$
12.56*.96 = 12.0576
So a cone with a volume of 12.0576 is the largest that will fit into the soda can

5 0

2 years ago

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Aro diagrams his river rafting trip, estimating the time it will take him to paddle upstream against the current, and then back

worty [1.4K]

Answer: upstream: 5.2= (x-y) 5

Downstream: 5.2= (x+y) 2.5

Step-by-step explanation:

6 0

2 years ago

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