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2 years ago

Triangle BDC is isosceles

Mathematics

1 answer:

Ganezh [65]2 years ago

6 0

ZCAB angle is congruent to ZBAD

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Simplify the expression; 2^3 x 2^2 A. 2^5 B. 4^6 C. 4^5 D. 2^6

Illusion [34]

Answer:

Simplify the expression; 2^3 x 2^2

A. 2^5 

B. 4^6

C. 4^5

D. 2^6

Step-by-step explanation:

You add the powers together since you are multiplying.

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3 years ago

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Please help I am very confused:)

Fynjy0 [20]

Answer:

the one solution is -20

Step-by-step explanation:

-15x - 27 + 7 = -25 - 15x +5

-27 + 7 = -25 +5

-20 = -20

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3 years ago

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The cost of producing x soccer balls in thousands of dollars is represented by h(x) = 5x + 6. The revenue is represented by k(x)

Korolek [52]

(9x-2) - (5x+6) =

4x-8 , this is your profit function

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3 years ago

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Fish Tales P.O.W.

mars1129 [50]

25 because it said the head of the fish in 10 the fishes tail is the same 10 plus half witch is 5 so if u add it you get 25

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3 years ago

A ball is thrown downward from a cliff. Its position at time t seconds is given by the formula s(t) = 16t2 + 32t, where s is in

Rom4ik [11]

Answer:

It takes 2.8 seconds for the ball to fall 215 ft.

Step-by-step explanation:

We are given a position function s(t) where s stands for the number of feet the ball has fallen, so we have to replace s with the given value of 215 ft and solve for the time t.

Setting up the equation.

The motion equation is given by

$s(t) =16t^2+32t$

We can replace there s = 215 ft to get

$215=16t^2+32t$

Solving for the time t.

From the previous equation we can move all terms in one side to get

$16t^2+32t-215=0$

At this point we can solve for t using quadratic formula.

$t = \cfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

where a, b and c are the coefficients of the quadratic equation

$at^2+bt+c=0$

So we get

$a=16\\b=32\\c=-215$

Replacing on the quadratic formula we get

$t = \cfrac{-32\pm \sqrt{32^2-4(16)(-215)}}{2(16)}$

Using a calculator we get

$t=-4.8 , t = 2.8$

Physically speaking the only result that makes sense is to move forward in time that give us t = 2.8 seconds.

We can conclude that it takes 2.8 seconds for the ball to fall 215 ft.

3 0

3 years ago