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Crazy boy [7]
3 years ago
12

The square of a number is 3 less than four times the number. which values could be the number?​

Mathematics
2 answers:
V125BC [204]3 years ago
8 0

Answer:

let the number be x.

Step-by-step explanation:

According to the above given question,

x² = 4x-3

or, x² - 4x +3 = 0

or, x² - 3x- x +3 = 0

or, x(x-3) - 1(x-3) = 0

or, (x-3)(x-1) = 0

Either,

(x-3) = 0

or, x = 3

Or,

( x-1 ) = 0

or, x = 1

the number could be 3 or 1

Lina20 [59]3 years ago
5 0

Answer:

x could be 3 or 1

Step-by-step explanation:

x²+3=4x

x²-4x+3=0

(x-3)(x-1)

x could be 3 or 1

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Priscilla invests $10,000 in an account that compounds interest continuously and earns 11%. How long will it take for her money
Shkiper50 [21]

Answer:

Step-by-step explanation:

When the interest compounds continuously, our formula is

A(t)=Pe^{rt}

If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000.  That's 20000.  Therefore, our equation is

20000=10000e^{.11t}

Divide both sides by 10000 to get

2=e^{.11t}

Take the natural log of both sides to "undo" that e:

ln(2)=ln(e^{.11t})

Again, since ln and e undo each other what we have now is

ln(2) = .11t and

\frac{ln(2)}{.11}=t so

t = 6.3 years

5 0
3 years ago
X A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?
torisob [31]

Answer:

Area of of the doghouse which is in the shape of right trapezoid is 66.5 square feet.

Step-by-step explanation:

7 0
3 years ago
If i have a 83.5 as my grade and let's just say i would get a 70/100 what would be my grade?
daser333 [38]

Answer:

76.75

Step-by-step explanation:

83.5 + 70=  153.5

153.5 / 2 = 76.75

Your grade would be 76.75.

HOPE THIS HELPED

6 0
3 years ago
Byron earns $11.00 per hour. How many hours will Byron have to work to earn $143.00?
kirza4 [7]
Byron would have to work 13 hours to earn $143.00
8 0
4 years ago
Read 2 more answers
Help please 10 points !!!!!
____ [38]

If an object has a density of less than 1 g/ml, the object will float in water.

So, fourth option is correct

Density = \frac{Mass}{Volume}

The object with density less than 1 g/ml will float, and the object with a density more than 1 g/ml will sink.

So, if an object has a density of less than 1 g/ml, the object will float in water.

Therefore, fourth option is correct

Learn more about density here:

brainly.com/question/3049000?referrer=searchResults

4 0
2 years ago
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