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Rudik [331]
2 years ago
8

What is the value of x in the equation 2(x - 4) - 4(2x + 1)?

Mathematics
1 answer:
Natalija [7]2 years ago
8 0
The answer I think is -2
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Find the radius of a circle in which an inscribed square has a side of 8 inches.
PSYCHO15rus [73]
If the inscribed square has sides of 8in, the diameter of the circle is equal to the diagonal of the square.

d^2=x^2+x^2

d^2=2x^2

d=√(2x^2)

Since d=2r, r=d/2 so

r=(1/2)√(2x^2)

r=√((2x^2)/4)

r=√(x^2/2), since x=8

r=√(64/2)

r=√32  

r=√(16*2)

r=4√2 in (exact)

r≈5.66 in (to nearest hundredth of an inch)
4 0
3 years ago
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Solve: <br><br> -2 1/3-(-5)= what<br><br><br> Please help
OLEGan [10]

Answer:

8/3

Step-by-step explanation:

\frac{ - 7}{3}  + 5 =  \frac{8}{3}

7 0
3 years ago
If f(c)=0, which of the following statements must be true?
Tju [1.3M]

Answer:

C.

Step-by-step explanation:

If f(c)=0 then (c,0) is on the graph.

In general, if f(a)=b then (a,b) is on the graph.

By factor theorem if f(c)=0 then x-c is a factor.

If x-c is a factor then x-c will divide f(x) evenly.  We know this because the remainder will be 0 because we know x-c is a factor of f.

The only choice that I have said in this whole thing that is true is C.

7 0
2 years ago
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Which number is a rational number?
Nikitich [7]

Answer:sq rt of 49

Step-by-step explanation:

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Is the leading coefficient 0 or 1?<br><br> x^3 - 5x - 12
Aleks04 [339]

Answer:

1

Step-by-step explanation:

The coefficient of a polynomial expression is the coefficient of the term with the highest exponent. We can see that the term with the highest exponent is x^3. So, the leading coefficient is its coefficient which is 1.

Note that any number can be written as the product of that number and 1 as multiplying by 1 does not fundamentally change that number. In our given example, x^3 is equivalent to 1x^3.

5 0
2 years ago
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