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zysi [14]
3 years ago
12

Evaluate this expression. 5^2 +3 (8-2) A. 28 B. 32 C. 43 D. 47 E. 168

Mathematics
1 answer:
Xelga [282]3 years ago
6 0

Answer:

C. 43

Step-by-step explanation:

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if you multiply 10.4x5x8 it equals 416 millimeters

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3 years ago
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PLEASE HELP URGENT
aivan3 [116]
(10/17) / (-15/17) =
10/17 * - 17/15 =
- 10/15 =
- 2/5 <==
============
2.75 / -2.2 =
- 1.25 <==
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(-2 3/5) / (3/5) =
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(2 1/4) / (3/4) =
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7 0
2 years ago
The equation of a circle is ( x - 3) 2 + ( y + 2) 2 = 25. The point (8, -2) is on the circle.
Shtirlitz [24]

Answer:

x =8 is the equation of the tangent.

Step-by-step explanation:

Here the equation of the given circle is: (x-3)^{2}  + (y+2)^{2}  = 25

Now, comparing it with the general equation of circle: (x-h)^{2}  + (y -k)^{2}  = r^2

we get the central coordinates (h,k)  = (3,-2)

So, the slope of the line joining center and (8, -2) = \frac{-2 -(-2)}{8-3} = \frac{0}{5} = 0

Since the slope of line = 0, line is parallel to x axis.

Now, as tangent and the line is perpendicular to each other

⇒Slope of the tangent = -1/ slope of the line = \frac{-1}{0}

Now, by point slope formula: the equation of the tangent is

(y-y0)  = m (x-x0)

or, (y +2) = \frac{-1}{0} (x -8)

or x =8 is the equation of the tangent.

8 0
3 years ago
3(x+3)+3x=15<br><br> Solution and check<br><br> Shown in attachment below
OLga [1]
3x + 9 + 3x =15
6x + 9 = 15
- 9 = -9
6x = 6
/6 /6

X =1
6 0
3 years ago
Help me please i dont get it
Nana76 [90]

Answer:

b

Step-by-step explanation:

b

7 0
3 years ago
Read 2 more answers
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