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I am Lyosha [343]
3 years ago
13

What value of A will make the equation a true statement? Explain how you arrived at your solution. Fast as possible would be nic

e kind Madams and Sirs.

Mathematics
1 answer:
AlekseyPX3 years ago
6 0

Answer:

x=-7/12

Step-by-step explanation:

add the fractions

(-3/4+4/3)+a=0

(-9+16/12)+a=0

(7/12)+a=0

Transpose 7/12 to the right side so the signs will change it will become negative

a=-7/12

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Identity the value for a, b, and c. <br>2x^2=-7x-9​
castortr0y [4]
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A box on a 20 degree incline is shown with vectors radiating from a point in the center of the box. The first vector points up a
Finger [1]

The images to solve this problem is in the attachment.

Answer: F_{fs} = 671.0 N; F_{N} = 300 N

Step-by-step explanation: From the image in the attachment and knowing that the box is in equilibrium, i.e., the "sum" of all the forces is 0, it is possible to conclude that:

F_{fs}  = F_{gx} and F_{N} = F_{gy}

Using trigonometry, shown in the second attachment, the values for each force are:

  • Force of Static Friction

sin 20° = \frac{F_{gx} }{F_{g} }

F_{gx} = F_{g}. sin(20)

F_{gx} = 735.0.913

F_{gx} = 671.0

  • Normal Force

cos 20° = \frac{F_{gy} }{F_{g} }

F_{gy} = F_{g}. cos (20)

F_{gy} = 735.0.408

F_{gy} = 300

The force of static friction is 671N and normal force is 300N

8 0
3 years ago
Read 2 more answers
I need help! 50 points!
o-na [289]

The equation of this sinusoidal function is either

f(x) = a sin(bx) + c

or

f(x) = a cos(bx) + c

Either way, the plot of f9x) has amplitude a, period 2π/b, and midline y = c.

If the period is π/2, then

2π/b = π/2   ⇒   b = 4

If the maximum value is 10 and the minimum value is -4, then

-4 ≤ a sin(4x) + c ≤ 10

-4 - c ≤ a sin(4x) ≤ 10 - c

-(4 + c)/a ≤ sin(4x) ≤ (10 - c)/a

Recall that sin(x) is bounded between -1 and 1. So we must have

-(4 + c)/a = -1   ⇒   a = c + 4

(10 - c)/a = 1   ⇒   a = -c + 10

Combining these equations and eliminating either variable gives

a + a = (c + 4) + (-c + 10)   ⇒   2a = 14   ⇒   a = 7

a - a = (c + 4) - (-c + 10)   ⇒   0 = 2c - 6   ⇒   c = 3

Finally, we have either

f(x) = a sin(bx) + c   ⇒   f(0) = c = 3

or

f(x) = a cos(bx) + c   ⇒   f(0) = a + c = 3

but the cosine case is impossible since a = 7.  

So, the given function has equation

f(x) = 7 sin(4x) + 3

8 0
2 years ago
261, 256, 251, ...<br> Find the 46th term
slava [35]

Answer:

46th term is 36.

Step-by-step explanation:

we need to subtract like this..

251-5=246,246-5=241.likewise the 46th term is 36

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3 years ago
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Answer: 6p=80

Step-by-step explanation:

This is the first half of the anwser

7 0
3 years ago
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