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Novay_Z [31]
2 years ago
10

One rule of thumb for estimating crowds is that each person occupies 2.3 square feet. Use this value to estimate the size of a c

rowd that is 8 feet wide on both sides of the street standing along a 4.1-mile section of a parade route.
Mathematics
1 answer:
dybincka [34]2 years ago
7 0

Answer:

150,595

Step-by-step explanation:

First, convert miles to feet:

4.1 mi × (5280 ft/mi) = 21648 ft

The area that the crowd takes up is:

2 × 8 ft × 21648 ft = 346368 ft²

The number of people is:

346368 ft² × (1 person / 2.3 ft²) = 150594.8

Rounding to the nearest integer, there are approximately 150,595 people in the crowd.

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-x^2+4x-8 <br>axis of symmerty​
V125BC [204]

Answer:

\boxed {\boxed {\sf x=2}}

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

x=\frac{-b}{2a}

First we must determine a and b from the quadratic: -x^2+4x-8. This is in standard form, with the highest power first in descending order.

Standard form is also: ax^2+bx+c

If we compare this to the quadratic given, we can conclude that:

a= -1 \\b= 4 \\c= -8

Substitute the values for a and b into the formula.

x= \frac{-(4)}{2(-1)}

Multiply in the denominator.

x=\frac {-4}{-2}

Divide.

x=2

This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.

8 0
3 years ago
-4x + 6 + 2x + 5, Solve for X
pychu [463]
-4x + 2x = -2x
6 + 5 = 11
Therefore, 11 - 2x = 0
11 = 2x
x = 11/2 = 5.5
8 0
3 years ago
Simplify the expression. 20 • 5–2<br><br> a) 25<br> b) –500<br> c) –200<br> d) 4/5
SCORPION-xisa [38]

Answer: D) 4/5

Hope this helps :)

8 0
2 years ago
Whats the y-axis reflection. of 4,-4
Karo-lina-s [1.5K]

Answer:

4,4

Step-by-step explanation:

its ask for the reflection, so -4 will be 4

5 0
2 years ago
Pls help me ASAP I have other homework to do and I don’t have time for this. It also detects if it’s right or wrong:(
Tems11 [23]
The answer is B. 5 hours.
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