I really need help will give brainliest

Mathematics

1 answer:

astra-53 [7]2 years ago

7 0

Answer:

You would put 11y-22+7y-6+3x+12+5x and that will give you the answer. Hope this helps!

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Write an explicit rule for the geometric sequence 4, 8, 16, 32, ..

Paul [167]

First term: a(1) = 4; common ratio: r = 2

Then:

a(n) = 4(2)^(n-1)

Check: Predict the 4th term using this formula:

a(4) = 4(2)^3 = 4(8) = 32 (correct)

5 0

4 years ago

Read 2 more answers

Please help! This is Geometry I don't know what to do<br><br>

velikii [3]

Answer:

$\huge\boxed{x=6}$

Step-by-step explanation:

$\triangle ABC\ \text{and}\ \triangle ADB\ \text{are similar (AA). Therefore corresponding sides are in proportion.}\\\\\dfrac{BD}{BC}=\dfrac{AB}{AC}\\\\\text{We have}\\\\BD=x\\BC=10\\AB=7.5\\AC=12.5\\\\\text{Subtitute:}\\\\\dfrac{x}{10}=\dfrac{7.5}{12.5}\\\\\dfrac{x}{10}=\dfrac{7.5\cdot10}{12.5\cdot10}\\\\\dfrac{x}{10}=\dfrac{75:25}{125:25}\\\\\dfrac{x}{10}=\dfrac{3}{5}\qquad|\text{cross multiply}\\\\(5)(x)=(3)(10)\\\\5x=30\qquad|\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{30}{5}\\\\x=6$