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Lelu [443]
2 years ago
6

The radius of a smaller circle is half the length of the radius of a larger circle. The area of the larger circle is 20 square i

nches. What is the approximate area of the smaller circle?
Mathematics
1 answer:
pantera1 [17]2 years ago
6 0

Answer:

4

Step-by-step explanation:

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Solve -7x^2+x+9=-6x quadratic formula
myrzilka [38]

Answer:

-7x^2+x+9=-6x

-7x^2+x+9+6x=-6x+6x

-7x^2+7x+9=0

quadratic\: formula

x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}

\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}

x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}

\frac{-7+\sqrt{301}}{2\left(-7\right)}

=\frac{-7+\sqrt{301}}{-2\cdot \:7}

=\frac{-7+\sqrt{301}}{-14}

\frac{-7-\sqrt{301}}{2\left(-7\right)}

=\frac{-7-\sqrt{301}}{-2\cdot \:7}

=\frac{-7-\sqrt{301}}{-14}

answer=\frac{7+\sqrt{301}}{14}

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7 0
3 years ago
I need help with this problem .
lozanna [386]

Answer:

D because the BC is the radius line

7 0
3 years ago
Which statement is correct with respect to f(x) = -3|x − 1| + 12?
Talja [164]

Answer:

The V-shaped graph opens downward, and its vertex lies at (1, 12).

Step-by-step explanation:

  • first, plot the graph of f(x),
  • take some 5 random negative and positive x values and then find corresponding f[x] values.plot  f(x) on y-axis. now, plot these points on the graph and finally join all the points. this gives u the required graph.
  • I have plotted the graph and uploaded it.

refer it.

  • by seeing the graph, we can easily say that,The V-shaped graph opens downward, and its vertex lies at (1, 12).

6 0
3 years ago
The music for Nadia’s dance routine last for exactly 4 minutes. When Nadia dances her routine, she starts with her music and fin
natima [27]
4 x 60 = 240 seconds

\frac{12}{60} /  \frac{12}{12} =  \frac{1}{5} of a minute not dancing.

4 \times 5 = 20 - 1 = 19\frac{19}{20} \times  \frac{5}{5} =  \frac{95}{100}

95% of the time dancing
4 0
3 years ago
Read 2 more answers
THESE ARE THE QUESTIONS<br> WILL MARK BRAINLIEST 99 POINTS
Arisa [49]
1. You are given PR and RS, so simply add the two measurements to get PS.

28.2+30.7= 58.9

2. Subtract QV from QT to get TV. 

78-56= 22

3. Again, Subtract QV from QT to get TV.

74-36= 38

4. Similar to question 1, add PR and RS to get PS. 

40+53= 93
4 0
3 years ago
Read 2 more answers
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