MATHEMATICS MIDDLE SCHOOL

Find the vertex of this parabola:
y = -5x2 - 10x - 15
Enter the correct answer.

Answers

Answer 1
Answer:

Answer:

Vertex of parabola (-1, -10)

Step-by-step explanation:

For a given quadratic y = ax² + bx + c, the vertex (h, k) is found by computing h = –b/2a, and then evaluating y at h to find k. If you've already learned the Quadratic Formula, you may find it easy to memorize the formula for k, since it is related to both the formula for h and the discriminant in the Quadratic Formula: k = (4ac – b2) / 4a.

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Mr.Rainer's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons.About how many hours will it take before his car runs out of gas?

Answers

multiply 1.6 by 12 and it will give u your answer

How many 5.6 kg are in g

Answers

Answer:

5600g

Step-by-step explanation:

Multiply by 1000 to convert from kg to gram

Answer:5600

Step-by-step explanation:

multiply the mass value by 1000

You can walk 13434 miles in 1212 hour. What is your average speed?

Answers

To find the speed, distance or time, you follow the pyrimad in the link.

According to the pyrimad, you divide distance by time to get speed. 13434 divided by 1212=11.08 ( 2 decimal places). The speed is therefore 11.08

How many feet is 43 meters

Answers

43 meters is 137.7 or (if you want to round) it's 138 feet.
The answer to your question is 141.076 feet. Anything else you need?

How does this model demonstrate the Pythagorean Theorem?Three squares whose corners touch so that the respective edges form a triangle. The smallest square has a side labeled six and is made up of thirty-six smaller squares. The largest square has a side labeled ten and is made up of one hundred smaller squares. The third square has a side labeled eight and is made up of sixty-four smaller squares.

A.
The sum of the lengths of the shortest and the longest sides is equal to twice the length of the middle side. So double the length of the longer leg of any right triangle is equal to the sum of the shorter leg and the hypotenuse.

B.
The sum of the area of the two smaller squares is equal to the area of the larger square. So the sum of the lengths of the two legs of any right triangle squared is equal to the length of the hypotenuse squared.

C.
The sum of the area of the smallest and the largest squares is equal to the area of the middle square. So the sum of the lengths of the shorter leg and the hypotenuse of any right triangle squared is equal to the length of the middle leg squared.

D.
The length of the longest side minus two equals the length of the middle side. The length of the middle side minus two equals the length of the shortest side. So the length of the short leg of any right triangle is equal to the length of the middle leg minus 2, and the length of the hypotenuse is equal to the length of the middle leg plus 2.

Answers

"  B is your best choice but it is very badly stated. this gives an Example of the Pythagorean theorem. it does Not demonstrate it. B is written incorrectly, it should say "sum of squares of the lengths of the legs" Not "sum of the lengths of the two legs of any right angle squared"

How do you get an odd perimeter for a rectangle? If you can, how oils you get a length and a width?

Answers

An odd perimeter can only happen if either the length or the width is a fraction with 1/2 in it, or both the length and the width have a 1/4 in it.
The length and the width are found using the regular means, but you will have to worry about fractions involved, so it can get kind of messy
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Hello i'll attached them Okay