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vredina [299]
4 years ago
11

If BC = 5 and CD = 26, find AC.

Mathematics
1 answer:
Blababa [14]4 years ago
3 0

Answer:

AC=\sqrt{130}

Step-by-step explanation:

AC is the geometric mean.  Solve it using this proportion:

\frac{BC}{AC}=\frac{AC}{CD}

Now fill in the values we know:

\frac{5}{AC}=\frac{AC}{26}

Cross multiply to get

(AC)^2=130

That means that

AC = \sqrt{130}, which, in decimal form is

AC = 11.40175425

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Tanzania [10]
Given ,

Hockey team wants to sell 500$ worth of tickets

Cost of each ticket = $10

To meet its goal ,
Number of tickets to be sold = total cost/cost of one ticket

=> Number of tickets to be sold = 500/10 = 50 tickets .
5 0
2 years ago
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Find the a2, a3, and a4 terms of the sequence defined as:
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Answer:

a_2 =\frac{1}{2}\\\\a_3 =2\\\\a_2 =\frac{1}{2}

Step-by-step explanation:

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3 years ago
A shop sells a party hat at x dollars and a mask at y dollars. On a particular morning, 3 hats and 4 masks were sold for $27. In
Aleks [24]

Answer:

Cost of each hat: $5

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Step-by-step explanation:

Let be "x" the cost in dollars of a party hat and "y" the cost in dollars of a mask.

Set up a System of equations using the information given in the exercise:

\left \{ {{3x+4y=27} \atop {3x+6y=33}} \right.

You can use the Elimination Method to solve this System of equations:

1. You can multiply the first equation by -1.

2. Then you must add the equations.

3. Solve for "y".

Then:

\left \{ {{-3x-4y=-27} \atop {3x+6y=33}} \right.\\.....................\\2y=6\\\\y=\frac{6}{2}\\\\y=3

4. Now you can substitute the value of "y" into any original equation.

5. Finally, solve for "x" in order to find its value.

Then:

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5 0
4 years ago
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Answer:

13 would be a prime number.

Step-by-step explanation:

Trust me :)

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14/5

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