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3 years ago

Math - Problem Solving

Mathematics

2 answers:

Len [333]3 years ago

3 0

Yes--- if it is a square BASED pyramid

wolverine [178]3 years ago

3 0

Answer:

Step-by-step explanati 9 +2p+3

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Which expressions are equivalent to 3x+6? Select all that apply. 2x+2+x+4, x+6+x+x, 3+6x, 10+9x-4-6x, 9+10x-6-4x

kati45 [8]

Answer:

x+6+x+x

Step-by-step explanation:

x+6+x+x =3x+6

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3 years ago

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Which phrase correctly represents the algebraic expression 3t?

mote1985 [20]

Answer:

Step-by-step explanation:

3t is also represented as 3(t)

which is multyplication

theirfor the product

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3 years ago

Amos is painting his pots. He needs 1/4 of a liter to paint all four pots. How much paint will he need for each of his 4 pots if

siniylev [52]

1/8 of a liter will be needed to fill all four pots

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3 years ago

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I need help like asap!!!!

bagirrra123 [75]

Answer:

to do this lets first solve this so

5*5*5*5=625

5^-3=0.008

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3 years ago

The position of a ball after it is kicked can be determined by using the function f left parenthesis x right parenthesis equals

Citrus2011 [14]

Answer:

When kicked, the height of the ball is 1 feet. The highest point for the ball's trajectory is 12 feet.

Step-by-step explanation:

We are given that the height is given by $f(x)=-0.11x^2+2.2x+1$ . The distance between the ball to the point where it was kicked is 0 right at the moment the ball was kicked. So, the height of the ball, when it was kicked is f(0) = -0.11*0 + 2.2*0 +1 = 1.

To determine the highest point, we will proceed as follows. Given a parabola of the form x^2+bx + c, we can complete the square by adding and substracting the factor b^2/4. So, we get that

$x^2+bx+c = x^2+bx+\frac{b^2}{4} - \frac{b^2}{4} +c = (x+\frac{b}{2})^2+c-\frac{b^2}{4}$ .

In this scenario, the highest/lowest points is $c-\frac{b^2}{4}[/tex} (It depends on the coefficient that multiplies x^2. If it is positive, then it is the lowest point, and it is the highest otherwise). Then, we can proceed as follows. [tex] f(x) = -0.11x^2+2.2x+1 = -0.11(x^2-20x)+1$

We will complete the square for $x^2-20x$ . In this case b=-20, so

$f(x) = -0.11(x^2-20x+\frac{400}{4}-\frac{400}{4})+1 = -0.11(x^2-20x+100-100)+1$

We can distribute -0.11 to the number -100, so we can take it out of the parenthesis, then

$f(x) = -0.11(x^2-20x+100)+1+100*0.11 = -0.11(x^2-20x+100)+1+11 = -0.11(x-10)^2+12$

So, the highest point in the ball's trajectory is 12 feet.

5 0

4 years ago

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