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3 years ago

Which of the following are quadrilaterals?

Mathematics

2 answers:

NemiM [27]3 years ago

5 0

THE ANSWER TO THE QUESTION IS C

Naily [24]3 years ago

3 0

Answer:

Step-by-step explanation:

beccause it has four sides

(quad) ,

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finlep [7]

Kill me please I'm ugly

4 0

3 years ago

If p is inversely proportional to the square of q, and p is 18 when q is

aniked [119]

Answer:

P=648

Step-by-step explanation:

6 0

3 years ago

A family on vacation records the time in hours) and the distance (in miles) that they travel. The data are shown in the scatter

nata0808 [166]

Answer:

In the first 3.5 hours, the family travelled 175 miles.

Step-by-step explanation:

We have the table:

time (hours) distance ( miles)

0 0

1 50

2 100

3 150

4 200

5 250

6 300

7 350

8 400

9 450

This seems like a linear relationship, let's write the general line:

y = a*x + b

That represents this situation, y is the distance in miles and x is the time in hours.

In the line equation, a represents the slope and b the y-intercept.

And if the line passes through the points (x₁, y₁) and (x₂, y₂), then the slope of the line is:

a = (y₂ - y₁)/(x₂ - x₁)

In this case we have a lot of points for the line, we can use any pair we want (we actually should use a few different pairs to see that the slope is always the same)

So if we use the first two (0, 0) and (1, 50)

the slope is:

a = (50 - 0)/(1 - 0) = 50

Now, if we use the third and fifth points (4, 200) and (5, 250) now the slope is:

a = (250 - 200)/(5 - 4) = 50/1 = 50

So we can conclude that the slope of the equation is a = 50

Then the equation is something like:

y = 50*x + b

To find the value of b, we can use any of the points of the line, for example (0, 0)

This means that when x = 0, y also must be 0, then:

0 = 50*0 + b

0 = b

Then the equation is:

y = 50*x

Now, to answer how many miles the family travelled in the first 3.5 hours, we just need to replace x by 3.5 in the equation:

y = 50*3.5 = 175

In the first 3.5 hours, the family travelled 175 miles.

6 0

3 years ago

phil ate three less than twice as many pancakes as sara. together they combined to eat 15 pancakes. How many pancakes did each e

Levart [38]

Answer:

Let x represents the Sara eat pancake and y represents the Phil eat the pancake.

As per the statement:

Phil ate three less than twice as many pancakes as Sara.

"Twice as many pancake as Sara" means 2x

"three less than twice as many pancakes as Sara" means 2x -3

⇒ $y = 2x-3$ .....[1]

It is also given that together they combined to eat 15 pancakes.

⇒ $x+y =15$ .....[2]

Substitute equation [1] into [2] we get;

$x+2x-3 = 15$

Combine like terms;

3x-3 =15

Add 3 to both sides we get;

3x = 18

Divide both sides by 3 we get;

x = 6

Substitute the value of x in [1] we get;

y = 2(6)-3 = 12-3 =9

y = 9

Therefore, the pancakes did each eat are;

Sara eat pancake = 6 and Phil eat pancake = 9

8 0

3 years ago

If the principal, interest rate, or time in a simple interest problem is doubled, and the other two quanities remain constant, h

Alex17521 [72]

one would say that the simple interest doubles if the period of time is specified in the contract and the contract is still valid, if the interest amount is available anitime and so on.

So if the amount doubles let's say at half time for which the principal was awarded to the bank, by the end of the contract , the interest amount can be double × just increased by 1.5

8 0

3 years ago