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3 years ago

10

Please help will mark brainliest!!!

1 answer:

exis [7]3 years ago

7 0

Answer:

B and E

Step-by-step explanation:

In the graph, the altitude represents Y axis while time represents the X axis. we can see that at interval 1 the function is dramatically decreasing. At Interval 2 the function is constant. At interval 3 the function is increasing but I can't say definitively if the slope is positive or negative. Hope this helped!

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Determine the number of zeros of the polynomial function <br> F(x) = x^4 - x^7

Tresset [83]

Answer:

7

Step-by-step explanation:

Using fundamental theorem of algebra, there should be 7 roots, if you count multiplicity.

If you're only counting distinct roots, then there should be 4 roots.

5 0

3 years ago

If the area of a trapezoid is 300, what are the dimensions?

ludmilkaskok [199]

It should be 75 if you divide the area by the amount of sides. I don’t know if I’m right if I’m wrong I’m sorry!

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3 years ago

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Calculate the distance travelled by a bus in 2 hrs which moves with a velocity of 22 m/s

svlad2 [7]

Answer:

158400 meters

Step-by-step explanation:

multiply 3600 by 22 then multiply by 2

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4 years ago

A town is planning a playground. It wants to fence in a rectangular space using an existing wall. What is the greatest area it c

777dan777 [17]

Answer:

1250 $ft^{2}$

Step-by-step explanation:

We are given that the playground is fenced on three sides of the playground and the four side has an existing wall.

Let the length of the rectangle be 'X' feet and width be 'Y' feet.

As the fencing is done using 100 feet of fence. We get the relation between the sides and the fence as, X + 2Y = 100.

As, X + 2Y = 100 → X = 100 - 2Y

Now, the area of the rectangle = XY = X × ( 100 - 2Y ).

i.e Area of the rectangle = $-2Y^{2} +100Y$ .

The general form of a quadratic equation is $y=ax^{2}+bx+c$ .

The maximum value of a quadratic equation is given by $x=\frac{-b}{2a}$ .

Therefore, the greatest value of $-2Y^{2} +100Y$ is at Y = $\frac{-100}{2 \times -2}$ = $\frac{-100}{-4}$ = 25.

Thus, Y = 25 and X = 100 - 2Y → X = 100 - 2 × 25 → X = 50.

Hence, the area of the rectangle is XY = 50 × 25 = 1250 $ft^{2}$ .

3 0

4 years ago

I thought of a number. If I multiply this number by 9, the number will be 117.what is the number?

olga55 [171]

117/9 which equals 13.

7 0

3 years ago

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