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tangare [24]
3 years ago
14

Please help The question is in the screenshot down below.

Mathematics
1 answer:
Furkat [3]3 years ago
3 0

Answer:

Scale factor of 2

Step-by-step explanation:

The base legnth of the after image is 8 and the original base legnth is 4 so 8/4=2

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According to the secant-tangent theorem, we have the following expression:

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Now, we solve for <em>x</em>.

\begin{gathered} x^2+6x+9=10.8(30) \\ x^2+6x+9=324 \\ x^2+6x+9-324=0 \\ x^2+6x-315=0 \end{gathered}

Then, we use the quadratic formula:

x_{1,2}=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

Where a = 1, b = 6, and c = -315.

\begin{gathered} x_{1,2}=\frac{-6\pm\sqrt[]{6^2-4\cdot1\cdot(-315)}}{2\cdot1} \\ x_{1,2}=\frac{-6\pm\sqrt[]{36+1260}}{2}=\frac{-6\pm\sqrt[]{1296}}{2} \\ x_{1,2}=\frac{-6\pm36}{2} \\ x_1=\frac{-6+36}{2}=\frac{30}{2}=15 \\ x_2=\frac{-6-36}{2}=\frac{-42}{2}=-21 \end{gathered}<h2>Hence, the answer is 15 because lengths can't be negative.</h2>
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1 year ago
Mrs. Bogaczyk got bored and decided to go on an Amazon spending spree! She bought 3 pairs of flip flops for $14.95 each, a sundr
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Step-by-step explanation:

3 pairs of flip flops = 14.95 x 3 = 44.85

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8 0
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In your own words, explain when a quadratic equation will have no real
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The equation has no true solution if the discriminant is less than 0.

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Here it is in order (2nd to 6th):
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Hope this helps!
5 0
3 years ago
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The length of the base of a right triangle is 32 centimeters, and the height is 10 centimeters. What is the area of the triangle
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