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uysha [10]
3 years ago
6

1/2x + 7 = Plz help to know the answer to this plz

Mathematics
2 answers:
steposvetlana [31]3 years ago
7 0
0.5*​x+​7 I think may be the correct answer. Correct me if I’m wrong.
almond37 [142]3 years ago
3 0

Answer: For multiplying is 3.5 and for adding is 7.5

Step-by-step explanation: because if you do 1/2 + 7 all you have to do is add the 7/1 and you would add it but if its multiplying your asking it would be 3.5

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A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC b
azamat
Step 2 is incorrect the sum of the 2 angles should be 180 degrees, not 90
3 0
4 years ago
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The equation d=11cos(8pi/5 t) models the horizontal distance, d, in inches of the pendulum of a grandfather clock from the cente
charle [14.2K]

Answer:

The time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.

Step-by-step explanation:

Given the equation

d = 11cos( \frac{8\pi}{5}*t)-----------Equation 1

where d, in inches of the pendulum of a grandfather clock from the center.

Comparing with the standard equation of an oscillating pendulum bob.

d = Acos (wt + \alpha ) ----------Equation 2

         where ω =  angular velocity

                     t =  time taken

                     α =  The angular displacement when t = 0

Comparing equation 1 and 2,

α = 0

w =\frac{8\pi }{5}

Recall that w = 2\pi fTherefore,[tex]2\pi f = \frac{8\pi }{5} \\\\f = \frac{4}{5}[/tex]

f = 0.8 Hertz

Recall that f = \frac{1}{T}

T = \frac{1}{0.8}

T = 1.25 seconds

Therefore, the time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.

5 0
3 years ago
Read 2 more answers
The work of a student to solve the equation 3(3y − 8) = 10 + 3y is shown below: Step 1: 3(3y − 8) = 10 + 3y Step 2: 6y − 5 = 10
alexandr402 [8]
Their error is in step 2. They added three to each number in (3y+8) instead of distributing it with multiplication. The correct step would be 9y-24=10y+3
6 0
3 years ago
The graph of an absolute value function has a vertex of (2,3) and crosses the x-axis at (−1,0) and (5,0). What is the equation f
frez [133]

Answer:

Option D.

Step-by-step explanation:

The vertex form of an absolute function is

y=a|x-h|+k

where, a is a constant, (h,k) is vertex.

It is given that, vertex of an absolute function is (2,3). So, h=2 and k=3.

y=a|x-2|+3   ...(1)

It crosses the x-axis at (5,0). So put x=5 and y=0 to find the value of a.

0=a|5-2|+3

-3=3a

-1=a

Put a=-1 in (1).

y=(-1)|x-2|+3

y=-|x-2|+3

Now, put y=0, to find the equation for this absolute value function when y=0.

0=-|x-2|+3

Therefore, the correct option is D.

4 0
4 years ago
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Find the perimeter of the following rectangle.
Ede4ka [16]

So the formula to workout the area of a rectangle is height X width

so 11/3 x 5/8

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hope this helps

6 0
3 years ago
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