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Norma-Jean [14]
2 years ago
9

Find the circumference of the circle. Use 3.14 for pi round the nearest hundredth rig necessary. 30 in the circumference of the

circle is abt something in
Mathematics
1 answer:
Alex73 [517]2 years ago
7 0

Answer:

C=2 \pi r

Step-by-step explanation:

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Step-by-step explanation:

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Solve the simultaneous equations:<br><br> 5x+4y=5<br> 2x+7y=29
OLga [1]

Answer:

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Step-by-step explanation:

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Read 2 more answers
-x^2+4x-8 <br>axis of symmerty​
V125BC [204]

Answer:

\boxed {\boxed {\sf x=2}}

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

x=\frac{-b}{2a}

First we must determine a and b from the quadratic: -x^2+4x-8. This is in standard form, with the highest power first in descending order.

Standard form is also: ax^2+bx+c

If we compare this to the quadratic given, we can conclude that:

a= -1 \\b= 4 \\c= -8

Substitute the values for a and b into the formula.

x= \frac{-(4)}{2(-1)}

Multiply in the denominator.

x=\frac {-4}{-2}

Divide.

x=2

This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.

8 0
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