2 years ago

A parabola with x intercepts of (8,0) and (-2,0) which passes through the point (7,9)

Mathematics

1 answer:

Artemon [7]2 years ago

6 0

Step-by-step explanation:

Using zero product rule, we have -(x - 8)(x + 2) = 0.

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Karina is designing a logo on a coordinate plane. The logo is a square whose area is 200 square units. She places a circle in th

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Answer:

Step-by-step explanation:

To find the percentage we must first find the area of the circle:

We can find the radius of the circle using the distance formula;

⇒ $d = \sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2}}$

⇒ $r = \sqrt{(6.3 - 0)^{2} + (1.6 - 0)^{2}}$

⇒ $r = 6.5$

Now we calculate the area;

⇒ $A = \pi r^{2}$

⇒ $A = \pi (6.5)^{2}$

⇒ $A = \frac{169}{4}\pi$

To get the percentage we divide the area of the circle by the square’s are and multiply by 100;

⇒ $Percentage = \frac{42.25\pi }{200} * 100$

⇒ $Percentage = 66 (2sf)$

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Allegra practices piano each day after school. Last week she practiced 3 3/10 hours. This week she practiced only 2 1/6 hours. H

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Subtract both fractions. Convert both fractions into improper fractions. So do 3x10+9 and see what ur answer is and put it over ten. Then do 2x16+1 and put the answer u get over 6. Then find the common denominator which is 30. Then subract both fractions and u should get ur answer

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Which is the correct classification of 3/8

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The correct classification is 3/8 in a proper fraction

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