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CaHeK987 [17]
3 years ago
8

Question: 7x^2 + 8x = x^2

Mathematics
2 answers:
7nadin3 [17]3 years ago
5 0

Answer:

x1= -4/3 and x2= 0

Step-by-step explanation:

Yanka [14]3 years ago
5 0
That answer is correct
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If x varies inversley as y and x=4 when y =8, find x when y=1
nikitadnepr [17]

Answer:

x = 32

Step-by-step explanation:

If x and y vary inversely, then xy = k where k is the constant of proportion

4(8) = 32 = k

Now, xy = 32

         1(x) = 32

           x = 32

4 0
3 years ago
A ball is thrown in the air from a height of 3 m with an initial velocity of 12 m/s. To the nearest tenth of a second, how long
wel

Answer: 0.3m/s

Step-by-step explanation:

Height/ velocity

3m/12m per sec

Time= 0.25metres per seconds

To the nearest tenth, 0.3m per seconds

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3 years ago
Which ordered pair could be removed from the graph to create a set of ordered pairs that represents a function
geniusboy [140]

Answer:

(1,3) is the answer if this is question because you haven't given graph.

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3 years ago
Simplify. Write the expression using only positive exponents. 3d^−4⋅4d^4 PPPLLLLEEEASSSEEEEE
bixtya [17]

Answer:

d=0

Step-by-step explanation:

Because multiplication is commutative, we can rearrange the expression however we want. So, let's put the constant expressions together, and the variable expressions together:

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The first term is easy enough: (3 x 4) = 12

For the second term, when exponent terms have the same "base" (in this case, d), the exponents can be added together. So, the second term yields d^(-4 + 4) = d^0. Any number raised to the zero power equals 1, EXCEPT for the sole number of zero. 0^0 is undefined, but any other number raised to the zero power equals 1.

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(12) x (1) = 12

The best way to express the answer would be that the expression equals 12 except that it is undefined if d=0

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