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mrs_skeptik [129]
2 years ago
4

Mighty Casey hits two baseballs out of the park. The path of the first baseball can be described by the displacement (distance a

nd direction) vector \purple{\vec{b_1}} = 100 \hat i + 10\hat j
b
1
​

​
=100
i
^
+10
j
^
​
start color #9d38bd, b, start subscript, 1, end subscript, with, vector, on top, end color #9d38bd, equals, 100, i, with, hat, on top, plus, 10, j, with, hat, on top. The path of the second baseball can be described by the displacement vector \blue{\vec{b_2}} = 90\hat i + (-20)\hat j
b
2
​

​
=90
i
^
+(−20)
j
^
​
start color #6495ed, b, start subscript, 2, end subscript, with, vector, on top, end color #6495ed, equals, 90, i, with, hat, on top, plus, left parenthesis, minus, 20, right parenthesis, j, with, hat, on top.
Mathematics
1 answer:
maxonik [38]2 years ago
4 0

Answer:

huh what the question

Step-by-step explanation:

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Find f(x) and g(x) so that the function can be described as y = f(g(x)). y = nine divided by square root of quantity five x plus
katrin [286]
y=\frac{9}{\sqrt{5x+5}}
hmm, seems that we can say that the square root thing is the g(x)

I would say
f(x)=\frac{9}{x} and
g(x)=\sqrt{5x+5}

we could also have
f(x)=\frac{9}{\sqrt{x}} and
g(x)=5x+5

or
f(x)=\frac{9}{\sqrt{x+5}} and
g(x)=5x

there are many posibilities
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2 years ago
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The lengths of trout in a lake are normally distributed with a mean of 30 inches and a standard deviation of 4.5 inches. Enter t
Sauron [17]
The answer is -0.4....
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Marlene rides her bike at a rate of 16 miles per hour. The time in hours that she rides is represented by the variable t, and th
White raven [17]

Let

t--------> the time in hours

d-------> the distance in miles

we know that

d=16t

this is a linear equation that represent the scenario

in this equation the independent variable is the time t and the dependent variable is the distance d

The distance's equation in function notation is equal to

f(t)=16t

Using a graph tool

see the attached figure

The domain of the function is the interval----------> [0,∞)

t\geq0

The range of the function is the interval------->  [0,∞)

f(t)\geq0

<u>Statements</u>

<u>a) The independent variable, the input, is the variable d, representing distance</u>

The statement is false

Because the  independent variable is the variable t

<u>b) The distance traveled depends on the amount of time Marlene rides her bike</u>

The statement is true

Because the distance's equation in function notation is equal to

f(t)=16t

<u>c) The initial value of the scenario is 16 miles per hour</u>

The statement is false

Because 16 represent the rate or  the slope of the linear equation

<u>d) The equation t = d + 16 represents the scenario</u>

The statement is false

Because, the scenario is represented by the function f(t)=16t

<u>e) The function f(t) = 16t represents the scenario</u>

The statement is true

8 0
2 years ago
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A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
statuscvo [17]
Let's start by visualising this concept.

Number of grains on square:
1   2   4   8   16 ...

We can see that it starts to form a geometric sequence, with the common ratio being 2.

For the first question, we simply want the fifteenth term, so we just use the nth term geometric form:
T_n = ar^{n - 1}
T_{15} = 2^{14} = 16384

Thus, there are 16, 384 grains on the fifteenth square.

The second question begs the same process, only this time, it's a summation. Using our sum to n terms of geometric sequence, we get:
S_n = \frac{a(r^{n} - 1)}{r - 1}
S_{15} = \frac{2^{15} - 1}{2 - 1}
S_{15} = 2^{15} - 1 = 32767

Thus, there are 32, 767 total grains on the first 15 squares, and you should be able to work the rest from here.
6 0
2 years ago
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Which represents the solution set of the inequality 5 x minus 9 less-than-or-equal-to 21
Whitepunk [10]

Answer:

x less than or equal to 6

Step-by-step explanation:

5x-9 ≤ 21 ===> 5x ≤ 21+9 ===> 5x ≤ 30 ===> x ≤ 30/5 ===> x ≤ 6

5 0
2 years ago
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