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Margaret [11]
4 years ago
15

Given (x-1)^2=50, select the values of x

Mathematics
1 answer:
dedylja [7]4 years ago
7 0

Answer:

7.14

Step-by-step explanation:

Equation: (x-1)^2=50

Open parentheses: x^2-1^2=50

Solve: x^2-1=50

Addition property: x^2-1+1=50+1

x^2=51

√x^2=√51

x=7.14

<em>Hope this helped!</em>

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mario62 [17]
Ikr like I’m failing lol
6 0
3 years ago
A new car is purchased for $50,000 and over time it’s value depreciates by one half every 5 years. What is the value of the car
Setler79 [48]

The value of the car after 5 years would be $23914.85

<u>Explanation:</u>

Given:

Worth of the new car = $50,000

Every 5 years the value depreciates by 1/2

i.e., every 5 years the value depreciates by 50%

So, we can say that every year the value depreciates by 10%

The worth of the car after 7 years would be

W = C (1 - \frac{D}{100} )^t

where,

W is the depreciated value

C is the current value

D is the depreciation rate

t is the time

Substituting the value in the equation we get:

W = 50000( 1 - \frac{10}{100} )^7\\\\W = 50000 (\frac{9}{10} )^7\\\\W = 23914.85

Therefore, the value of the car after 5 years would be $23914.85

7 0
3 years ago
The product of a number and 8 less than the number is -15. Find the number.
STatiana [176]

Answer:

9

Step-by-step explanation:

<em>In order to find this answer you need to determine what it is really saying </em>

<em>It took me a few times to read this but i determined what you need to do is :</em>

<em>count down from every number </em>(-1 to -9) <em>until you can come up with </em>-15.

<em />

<em>At this point you can determine the answer is </em><em>9</em><em> </em>

<em>Hope this helps</em>

<em>stay safe:))))</em>

<em>brainliest is appreciated :)</em>

8 0
4 years ago
Fraction - Multiplication : 3/4 x 1/7
liq [111]

Answer:

given

3/4×1/7

=3×1/4×7

=3/28

thus the answer is 3/28

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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5 0
4 years ago
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