All categories

3 years ago

Which equation could be the equation of this parabola?

Mathematics

2 answers:

grin007 [14]3 years ago

8 0

D, Because the equation must be in slope intercept (y=mx+b) and since it is going upwards (all positive nunbers) then the slope would be positive as well. I hope this helps!

nignag [31]3 years ago

5 0

Parabolas in the form of $\sf y=x^2$ open upwards or downwards.
Parabolas in the form of $\sf x=y^2$ open to the left or to the right.

Since this parabola opens upward, we know it must be in the form of $\sf y=x^2$ . Also, if the coefficient of 'x' is positive, it opens upward, but if it is negative, it opens downward. This parabola opens upward, so we know that the coefficient of 'x' must be positive. Therefore, our answer must be D, $\sf y=2x^2$

You might be interested in

Mrs. Chen's students are making and decorating gift boxes for a nursing home. If the boxes are 7 inches wide, 7 inches long, and

pishuonlain [190]

Answer:

$84\text{ in}^2$ .

Step-by-step explanation:

We have been given that Mrs. Chen's students are making and decorating gift boxes for a nursing home. The boxes are 7 inches wide, 7 inches long, and 7 inches high. We are asked to find the amount of cardboard that is needed for each box.

We will use surface area of cuboid formula to solve our given problem.

$SA=2(lw+lh+hw)$ , where,

l = Length,

w = Width,

h = Height

$SA=2(7\text{ in}\cdot7\text{ in} +7\text{ in}\cdot7\text{ in}+7\text{ in}\cdot7\text{ in})$

$SA=2(14\text{ in}^2+14\text{ in}^2+14\text{ in}^2)$

$SA=2(42\text{ in}^2)$

$SA=84\text{ in}^2$

Therefore, Mrs Chen needs 84 square inches of cardboard.

3 0

3 years ago

What the answer .....?

AysviL [449]

The answer would be A because 3.90 x 3.5 is equal to 13.65

6 0

3 years ago

Read 2 more answers

2 3/5 * 3 1/3<br> Just answer please

Ira Lisetskai [31]

Answer: 8.66666666667

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A rectangular field is 300 meters long and 250 meters wide. What is the area of the field in square kilometers

lidiya [134]

Answer:

0.075 sq km

Step-by-step explanation:

Given that there is a rectangular field with dimensions of length =300 m and width = 250 m.

We have to calculate area of this rectangle in the units of square kilometres.

Let us convert length and width into km

1000m = 1 km

Hence length = 300/1000= 0.3 km and

width = 250/1000 = 0.25 km.

ARea = length x width = 0.3 x 0.25

=0.075 square km.

7 0

3 years ago

please hurry!! i have a D in math

3241004551 [841]

Answer:

60, and m = 30, and 1 min 20.

Step-by-step explanation:

For A, the 60 is the starting point meaning that the temperature was intitally 60 degrees

For B, if we divided both sides by 2 we get the answer m = 30, meaning every minute, it was up 30 degrees.

For C, we know that in one minute it will be 90 degrees, so 60 seconds = 30 degrees. So lets divided both sides by 3 to get 10 degrees. We get 20 seconds. It will take 1 min and 20 for it to be 100 degrees.

Hopefully thats right.

4 0

3 years ago