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Helga [31]
3 years ago
7

Someone help me with this math problem pleasee

Mathematics
2 answers:
anygoal [31]3 years ago
6 0

Answer: 0.012

Step-by-step explanation: You have to multiply percentage by 100.

Mekhanik [1.2K]3 years ago
3 0

Answer:

0.012

Step-by-step explanation:

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Issac tosses a quarter off of a bridge, creating the shape of a parabola. The parabola can be represented by the equation h=-16t
andreyandreev [35.5K]

Answer:

Step-by-step explanation:

a) the equation representing the parabola is expressed as

h = -16t² - 4t + 20

c) to determine the height after 25 seconds, we would substitute 25 for t into the given equation. It becomes

h = -16(25)² - 4(25) + 20

h = - 10000 - 100 + 20

h = - 10080

d) when the coin lands on the ground, the height would be 0. Therefore,

-16t² - 4t + 20 = 0

Dividing both sides of the equation by 4, it becomes

- 4t² - t + 5 = 0

- 4t² - 5t + 4t + 5 = 0

- t(4t + 5) + 1(4t + 5) = 0

- t + 1 = 0 or 4t + 5 = 0

t = 1 or t = - 5/4

Since t cannot be negative, then t = 1 second

4 0
3 years ago
What is the average rate of change of the function over the interval x = 0 to x = 5?
AURORKA [14]

\bf slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)= 2x^2-1\qquad \begin{cases} x_1=0\\ x_2=5 \end{cases}\implies \cfrac{f(5)-f(0)}{5-0} \\\\\\ \cfrac{[2(5)^2-1]~~-~~[2(0)^2-1]}{5}\implies \cfrac{50-(-1)}{5}\implies \cfrac{50+1}{5}\implies \cfrac{51}{5}\implies 10\frac{1}{5}

6 0
3 years ago
Milan has 4 times as many baseball cards as Richard. Together they have 125 baseball cards. How many cards does Milan have? How
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

500

7 0
3 years ago
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Compare the rates to find which is the best value.
sattari [20]

Answer:

C6 greeting cards for $23.40

Step-by-step explanation:

A. 13.5/3=4.5

B. 38.25/9=4.25

C. 23.4/6=3.9

d. 32.8/8=4.1

5 0
3 years ago
A 6-foot-wide hallway is painted as shown, using equal amounts of white and black paint.
Phantasy [73]

Answer:

40 ft

Step-by-step explanation:

(i do not have a step by step explanation but it's correct.)

8 0
3 years ago
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