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kotykmax [81]
3 years ago
8

A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River. Use the formula t

=h−−√4 to find how many seconds it takes for the hammer to reach the river. Round your answer to the nearest tenth of a second.
Mathematics
1 answer:
yan [13]3 years ago
7 0

Answer:

15.8

Step-by-step explanation:

We are asked to find how many seconds it takes for an object to fall from a height of 4,000ft. We will use the given formula, t=h−−√4. Substituting h=4,000, we find

t=4000−−−−√4=15.8

So, the hammer reaches the river after 15.8 seconds.

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True or False: In order to prove that two functions are inverses, you can show that f (g(x)) = x AND show that g (f ()) = x. Thi
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Answer:

true

Step-by-step explanation:

trust me

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3 years ago
Help plz i will make u a brainllest 24.Can you use the SSS Postulate or the SAS Postulate to prove abd=dca? 26 28
Alex_Xolod [135]

Answer:  24) C. SSS only

               26) D. DH = HF

<u>Step-by-step explanation:</u>

24.

<u>Statement</u>                    <u>Reason</u>

1. BD = CA                    1. Given

2. AB = CD                  2. Given

3. AD = AD                  3. Reflexive Property

4. ΔABD = ΔDCA        4. SSS Congruency Theorem

<em>We have no information about the angles so cannot use SAS Theorem.</em>

26.  G H F

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Line up the letters to find the congruent sides:

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7 0
3 years ago
With some functions, the value of the
Romashka-Z-Leto [24]

Answer and explanation:

This is an example of negative correlation/inverse relationship between two variables. A negative correlation between two variables, independent and dependent variable, occurs when increase in one variable is associated with decrease in the other. In other words, the two variables tend to go in opposite direction.

The independent variable is the variable that causes a change in the dependent variable. For example, an increase in the independent variable in an inverse relationship will bring about a decrease in the dependent variable.

A good real world example is the increase in inflation and the decrease in purchasing power of money.

An equation for this could be

Y=-0.2(x)

Where y is dependent variable purchasing power and x is independent variable inflation

3 0
3 years ago
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Kruka [31]

Answer:

y = -x + 2

Step-by-step explanation:

Lines that are parallel have the same slope but different

y-intercepts.

So the slope of the parallel line is -x

We can input the x and y points given to solve for the new y-intercept

  • y = -x + b
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The new line is y = -x + 2. Since these two lines are the same, they are coinciding lines.

-Chetan K

4 0
2 years ago
Read 2 more answers
The line represented by the equation 2y - 3x = 4 has a slope of.....
S_A_V [24]
2y - 3x = 4 
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y = kx + b ==>

k = 3/2 = 1,5
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3 years ago
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