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mr_godi [17]
3 years ago
5

Simplify. 7√32−6√72 Enter your answer, in simplest radical form, in the box.

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0

Answer-

-8\sqrt2

Step-by-step explanation:

Tasya [4]3 years ago
5 0

Answer:

-8√2

Step-by-step explanation:

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Solve (x - 3)^2 = 5 p<br><br> please help
wel

Hello!

Let's solve !

⇒ (x - 3)² = 5

⇒ x² - 6x + 9 = 5

⇒ x² - 6x + 4 = 0

⇒ x = -(-6) ± √36 - 4(1)(4) / 2

⇒ x = 6 ± √20 / 2 = 6 ± 2√5 / 2

⇒ x = 3 ± √5

∴ The solutions are x = 3 + √5 and x = 3 - √5.

3 0
2 years ago
Read 2 more answers
wants to buy a video game that cost $299 and his parents will pay 40% what will be the part he has to pay
viktelen [127]
He will pay $179.4.

40% of 299 = 119.6

299-199.6 = 179.4


To check your answer (or another way to do it is) take 60% of 299 = 179.4
3 0
3 years ago
Read 2 more answers
Please help me, i only have 30 mins.
Aleks04 [339]

Answer:

Width is 24, length is 40

Step-by-step explanation:

64 can be split into 8 groups of 8, and the 8 groups can be split into 3 and 5. Then, take 3 x 8 for the width and 5 x 8 for the length, and you have the answer! I wish to you best of luck!

4 0
2 years ago
What is the corrct answer​
Mademuasel [1]
D is the right answer
4 0
3 years ago
Write an<br> explicit formula for An, the nth term of the sequence 7, -42, 252, ....
erik [133]

Answer:

A_n = 7(-6)^{n-1}

Step-by-step explanation:

<u>Key skills needed: Explicit formula, Geometric sequence</u>

1) This is a geometric sequence, meaning a constant (like 6 or 3.5) is being multiplied to every term. First we need to find the constant.

This can be done by doing -42 ÷ 7   or   252 ÷ -42

-42 ÷ 7 equals -6.

252 ÷ -42 also equals -6.

2) This means that constant is -6.

3) The general form for an explicit formula of a geometric sequence is:

a_n = a_1(r)^{n-1}

--> r means the constant (or common ratio) that is being multiplied.

--> a_1 means the first term

--> a_n means the "nth" numbered term (so a_3 is the 3rd term, a_{10} is the 10th term and so on).

--> n-1 is just the "n" in a_n minus 1.

4) We can use this formula to create an explicit formula for the geometric sequence in the problem.

--> r = -6 (Since we got -6 as the constant/common ratio).

--> a_1  = 7 (Since 7 is the 1st term)

This means that our formula would be --> A_n = 7(-6)^{n-1}

<em>Hope you understood and have a nice day!! :D</em>

8 0
3 years ago
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