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Aliun [14]
3 years ago
11

What is 6(x+7)-2 equal

Mathematics
1 answer:
kenny6666 [7]3 years ago
3 0

Answer: 6(x+7)-2 = 6x+40

Step-by-step explanation:

1. First, distribute the 6 to (x+7).

6 times X = 6x and 6 times 7 = 42

2. Now we are left with the following equation: 6x+42-2

3. Combine like terms: 42-2=40

4. The final answer is 6x+40

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Write the expression 5x(x + 9) − 7(x + 9) in complete factored form.
NNADVOKAT [17]
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Lamont works for an electric utility and is installing a 40 foot utility pole as shown. Lamont drills the anchor of a support ca
PIT_PIT [208]

Answer:

<em>Approximately 43 feet of minimum cable is needed. </em>

Step-by-step explanation:

This problem can be solved using Trigonometry and Pythagorean theorem. Pythagorean theorem applies on right-triangles (<em>which are known to have one 90° angle</em>). The theorem states that the square of the Hypotenuse is obtained by the squared sum of the other two sides of the triangle (i.e the two sides forming the 90° angle - with the hypotenuse side being across it as:

h^2=a^2+b^2           Eqn. (1)

where

h is the hypotenuse

a is a side

b is a side

<u>Now in this case, the utility pole must be perpendicular to the ground and the anchor being parallel to the ground, and a 90° angle formed between them. </u>Conclusively the cable length will be represented by the hypotenuse in a right triangle. So here we have a=40ft and b=15ft. Plugging in Eqn.(1) and solving for h we have:

h^2=40^2+15^2\\h=\sqrt{40^2+15^2} \\h=\sqrt{1600+225}\\ h=\sqrt{1825}\\ h=5\sqrt{73}\\ h=42.72ft

So we conclude that the minimum length of cable needed by Lamont is

≈43 feet (rounded up).

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Step-by-step explanation:

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Step-by-step explanation:

Sorry : (

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