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BARSIC [14]
3 years ago
10

The figure below shows the dimension of an arrow pointed on the pavement of a parking lot. The entire length of the arrow is 8.5

feet. What is the area of the arrow?
A. 20 sq ft.
B. 21 sq ft.
C. 26.75 sq ft
D. 25.5 sq ft
Mathematics
1 answer:
Elodia [21]3 years ago
8 0
Letter b is the right answer choice
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The sum of 3 consecutive integers is 120. What is the greatest of these integers? HELP ME IT'S DUE TODAY!!!
kirill115 [55]

Answer:

<h3>               41</h3>

Step-by-step explanation:

The consecutive integers are increasing by 1

x ← the smallest integer

x+1 ← the middle integer

x+1+1 = x+2   ← the largest integer

x + x+1 + x+2 = 120

   3x + 3 = 120

      ÷3        ÷3

      x + 1 = 40

         -1       -1

        x = 39

x+2 = 39 + 2 = 41

3 0
3 years ago
At maximum speed, an airplane tracked 1720 miles against the wind in 5 hours. Flying with the wind, the plane can travel the sam
nataly862011 [7]
Recall your d = rt, distance = rate * time.

as the plane goes against the wind, the plane is not really flying at "x" mph, but is really going slower, at " x - y ", because the wind is subtracting speed from it.

likewise, when the plane is going with the wind, is not really going at "x" mph, but at " x + y ", is going faster due to the wind, thus

\bf \begin{array}{lccclll}&#10;&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\&#10;&------&------&------\\&#10;\textit{against the wind}&1720&x-y&5\\&#10;\textit{with the wind}&1720&x+y&4&#10;\end{array}&#10;\\\\\\&#10;\begin{cases}&#10;1720=(x-y)5\implies \frac{1720}{5}=x-y\\\\&#10;344=x-y\implies \boxed{y}=x-344\\&#10;---------------\\&#10;1720=(x+y)4\implies \frac{1720}{4}=x+y\\\\&#10;430=x+y\implies 430=x+\left( \boxed{x-344} \right)&#10;\end{cases}&#10;\\\\\\&#10;430=2x-344\implies 774=2x\implies \cfrac{774}{2}=x\implies 387=x
6 0
3 years ago
Need help this is for MATH
lapo4ka [179]

Answer:

It is D or B. If i am not mistaken

4 0
3 years ago
Which graph is an example of a function whose parent graph is of the form y = x
trapecia [35]
When line is parallel to y axis
4 0
3 years ago
Please can someone prove this equation
zubka84 [21]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1

Consider the left side

2cos²A - 1 ← replace 1 by sin²A + cos²A

= 2cos²A - ( sin²A + cos²A)

= 2cos²A - sin²A - cos²A

= cos²A - sin²A = right side ⇒ verified



6 0
3 years ago
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