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icang [17]
3 years ago
12

he accompanying diagram shows a 24-foot ladder leaning against a building. A steel brace extends from the ladder to the point wh

ere the building meets the ground. The brace forms a right angle with the ladder.
Mathematics
1 answer:
Mariana [72]3 years ago
8 0
Do you have the diagram? 

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Find the first six terms of the sequence.<br><br> a1 = -7, an = 4 • an-1
Alona [7]
Answer:
a1= -7
a2=4 <span>• -7= -28
a3=4 </span><span>• -28= -112
a4=4 </span>• -112= -448<span>
a5=4 </span>• -448= -1792<span>
a6=4 </span><span>• -1792= -7168</span>
8 0
3 years ago
Read 2 more answers
The width of this rectangle is measured as 19.4mm correct to 1 decimal place.
Afina-wow [57]

Answer:

reducing 9.35  to  19.44  is rounded to 19.4  

Step-by-step explanation:

9.35  to  19.44  is rounded to 19.4  

19.35  = 19.4

19.36  = 19.4

19.37 = 19.4

19.38 = 19.4

19.39 = 19.4

19.40 = 19.4

19.41  = 19.4

19.42 = 19.4

19.43 = 19.4

19.44 = 19.4

Hence Lower bound of   of the rectangle  = 19.35 mm

6 0
3 years ago
Solve the system using elimination tech
choli [55]

Answer:

Step-by-step explanation:

8x - 2y = 6

-8x + 4y = 12

2y = 18

y = 9

8x - 18 = 6

8x = 24

x = 3

(9, 3)

7 0
3 years ago
What is the average rate of change from x = −3 to x = −4?
Vika [28.1K]

Answer:

-2

Step-by-step explanation:

Since it would be immensely helpful to know the equation of this parabola, we need to figure it out before we can continue.  We have the work form of a positive upwards-opening parabola as

y=a(x-h)^2+k

where a is the leading coefficient that determines the steepness of lack thereof of the parabola, x and y are coordinates of a point on the graph, and h and k are the coordinates of the vertex.  We know the vertex: V(-3, -3), and it looks like the graph goes through the point P(-2, -1).  Now we will fill in the work form equation and solve for a:

-1=a(-2-(-3))^2-3

which simplifies a bit to

-1=a(1)^2-3

and

-1 = a(1) - 3.  Therefore, a = 2 and our parabola is

y=2(x+3)^2-3

Now that know the equation, we can find the value of y when x = -3 (which is already given in the vertex) and the value of y when x = -4.  Do this by subbing in the values of x one at a time to find y.  When x = -3, y = -3 so the coordinate of that point (aka the vertex) is (-3, -3).  When x = -4, y = -1 so the coordinate of that point is (-4, -1).  The average rate of change between those 2 points is also the slope of the line between those 2 points, so we will use the slope formula to find it:

m=\frac{-1-(-3)}{-4-(-3)} =\frac{2}{-1}=-2

And there you have it!  I'm very surprised that this question sat unanswered for so very long!  I'm sorry I didn't see it earlier!

5 0
3 years ago
Solve equation <br> 5x^4 = 405
Ratling [72]
There are two possible solutions

X=3
X=-3
6 0
4 years ago
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