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maksim [4K]
3 years ago
8

Pls help! fast!! marking brainliest

Mathematics
1 answer:
ehidna [41]3 years ago
5 0

Answer:

X=15ft

Step-by-step explanation:

17²-8²=225

\sqrt{225}

=15

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Find the value of C that completes the square for x^2-2x + C
solniwko [45]

Answer:

C = 1.

Step-by-step explanation:

x^2 - 2x = (x - 1)^2 - 1   so:

x^2 - 2x + C = (x - 1)^2 - 1 + C

So to get a perfect square  C must be 1 ( as -1 + 1 = 0):-

(x - 1)^2 - 1 + 1 = (x - 1)^2

Checking  this:

x^2 - 2x + 1

= (x - 1)(x - 1) which is a perfect square./

3 0
3 years ago
A) Complete this prime factor tree:
Ierofanga [76]

Answer:

2 * 2 * 3 * 3

Step-by-step explanation:

We are to write the value of 36 as a product of of prime factor

Factorizing 36;

2| 36

2| 18

3| 9

3| 3

| 1

Multiplying out all the factors;

36 = 2 * 2 * 3 * 3

Hence the prime factors of 36 are 2 * 2 * 3 * 3

7 0
3 years ago
Write the equation 5x - 3y = 15 in slope-intercept form. 5x____ - 3y = ____ + 15
Deffense [45]
5x - 3y = 15

5x - <u>5x</u> -3y = <u>- 5x</u> + 15

<u>-3y</u> = <u>-5x</u> + 15

3y = 5x - 15

divide all of them by 3...

y = 5/3 - 5 
5 0
3 years ago
Please helpppppp mee thanks everyone ​
netineya [11]

Answer:

\frac{32}{35}

Step-by-step explanation:

To answer this question you need to get the same denominator (bottom number of a fraction ) on both values

Because 7 is a factor of 35, you can multiply the whole fraction by 5, (so that the first fraction has a denominator of 35 which is the same as the other value)

\frac{4}{7}×5= \frac{20}{35}

then you add them up but remember if the denominator is the same you do <u>not </u> add them.

\frac{20}{35} +\frac{12}{35} = \frac{32}{35}

Hope the answer is right, Ask if unsure :)

7 0
2 years ago
Serena and Sienna both work for a company that pays 12 dollars per hour for the first 40 hours of work in a week. If an employee
Free_Kalibri [48]

Answer:

87 total hours.

Step-by-step explanation:

The equation 456/12 Gives you how many hours Sienna worked. (38)

642-480 will give you how much money Serena made off of Just OT (162)

162/18 = 9 (9 is how many overtime hours Serena worked.)

Serena worked her normal 40 hours, then worked over time, so you have to add 40 to the equation.

9+40+38 = 87

Serena and Sienna worked 87 total hours.

7 0
3 years ago
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