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andreyandreev [35.5K]
3 years ago
8

Factor completely x^2 − 10x + 25.

Mathematics
2 answers:
Olenka [21]3 years ago
8 0
The answer is a.
x^2 -10x+25 = x*x-2*5*x+5*5 => (x-5)(x-5)
ivanzaharov [21]3 years ago
5 0
We're looking for two numbers that when multiplied, give 25, and when added, give -10.

Factoring 25 leads to 5*5 or -5*-5. The second alternative also fits -5+-5 = -10.

So (x-5)(x-5) is the factorization.
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The FOIL method is used to multiply a binomial by a binomial.<br> True<br> O<br> False
riadik2000 [5.3K]

Answer:

True

Step-by-step explanation:

4 0
3 years ago
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D = √[( x₂ - x₁) + (y₂ - y₁)]
kondaur [170]
As it stands, it's none of those. I believe you were going for the distance formula but copied it wrong.
7 0
2 years ago
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At what rate per annum ci will RS 2000 amount to RS 2315.35 in 3 years
Mashutka [201]

<u>ANSWER: </u>

Rate per annum at which CI will amount from RS 2000 to RS 2315.35 in 3 years is 5%

<u>SOLUTION: </u>

Given,  

P = RS 2000

C.I = RS 2315.35

T = 3 years

We need to find the rate per annum. i.e. R = ?

We know that,  

When interest is compound Annually:

Amount $=\mathrm{P}\left(1+\frac{\mathrm{R}}{100}\right)^{n}$

Where p = principal amount

r = rate of interest

n = number of years

$2315.35=2000 \times\left(1+\frac{R}{100}\right)^{3}$

$\left(1+\frac{R}{100}\right)^{3}=\frac{2315.35}{2000}$

$\left(1+\frac{R}{100}\right)^{3}=1.157$

$1+\frac{R}{100}=\sqrt[3]{1.157}$

$1+\frac{R}{100}=1.0500$

$\frac{R}{100}=1.05-1$

$\frac{R}{100}=0.05$

R = 5%

Hence, rate per annum is 5 percent.

3 0
3 years ago
3x+12=2x+40 solve for x
Fiesta28 [93]

Answer:

x = 28

Step-by-step explanation:

7 0
2 years ago
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How would you find the number, 3/7 of which is equal to t? (let's say it was any number, just need the equation)
ohaa [14]
Let the number be x
(3/7) x = t
I can't think of anything useful to add to this. How about an example?

Let x = 49

(3/7) x = t
(3/7) * 49 = t seven will go into 49
3 * 49 = t
t = 147 
8 0
3 years ago
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