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schepotkina [342]
2 years ago
14

Add. (3х – 4) + (4х – 6) А. 7х+ 10 В. 7х+2 C. 7х- 2 D. 7x - 10

Mathematics
1 answer:
LuckyWell [14K]2 years ago
3 0

Answer:

D

Step-by-step explanation:

Because you have to do work

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On New years Eve, the temperature fell by 24 degrees in a span of 6 hours. By how many degrees did the temperature fall every ho
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4

Step-by-step explanation:

24/6

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Factor the expression.<br> 30-4n
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Hope this is what you are looking for the answer is 2(15-2n)
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A cheetah ran 196 meters in 8 seconds. Choose each statement that is true. A. 00:00 The cheetah can run 125 meters in 6 seconds.
KiRa [710]
Answers B, C, D are all correct!

If a cheetah ran 196m is 8 seconds, then 196/8 = 24.5 meters per second.

Let’s verify all answers:

A) 24.5 x 6 = 147. 147m are ran in 6 seconds, not 125.
B) 24.5 x 10 = 245. This answer is correct!
C) We’ve establishes that a Cheetah ran 24.5 meters per second. Correct!
D) Since one minute equals 60 seconds, 24.5 x 60 = 1470. Correct!
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4 0
3 years ago
If you get how to do this could you please help me on this question?
anzhelika [568]
Fan is at 75 degree angle
7 0
3 years ago
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Determine two pairs of polar coordinates for the point (4, -4) with 0° ≤ θ &lt; 360°.
umka2103 [35]
A polar coordinate is that which can be written as (r, θ) where r is the radius and θ is the angle. 

The radius, r, is also the hypotenuse of the right triangle that can be formed. Hence, it can be calculated through the equation,
    
                   r² = x² + y²
If we are to simplify this for the r alone, we have,
                     r = sqrt (x² + y²)

Substituting the known values,
               r = sqrt ((4)² + (-4)²) = 4√2

The x and y can be related through the trigonometric function, tangent. 
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To solve for θ
   θ = tan⁻¹(y/x) = tan⁻¹(-4/4) = -45° = 315°

Hence, the polar coordinate is <em>(4√2, 315°)</em>
5 0
3 years ago
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