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Darina [25.2K]
3 years ago
8

Solve the quadratic equation x2−5x=−20 by completing the square.

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

x = \frac{5}{2} + \sqrt[i]{55}/2

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Can someone tell me the answer to this?
lord [1]

Answer:

c is the answer i hope this helps

8 0
3 years ago
Read 2 more answers
Please answer my question
lakkis [162]

Replace m with each number in the given set and solve for d(m)


m = 0

d(m) = 7-2(0) = 7-0 = 7

m=1

d(m) =7-2(1) = 7-2 = 5

m = 2

d(m) = 7-2(2) = 7-4 = 3

m=3

d(m) = 7-2(3) = 7-6 = 1


The answers in order from smallest to largest are 1, 3, 5,7

The correct answer would be F.

4 0
3 years ago
What is the correct evaluation of 3x2 + 4x - 2y2 + 4y + 5, when x is equal to -1 and y is equal to 5?
Julli [10]
3x2+4(-1)-2(5)2 +4(5)+5=
__________________
6+-4-10+25
_________
31-14=17
8 0
3 years ago
Answer the following <br><br> please give steps of how you got your answer
konstantin123 [22]

Answer: x^4

Step-by-step explanation:

1. Rewrite the expression in fraction form:

(3√x²)^6 = x^(2/3)^6

2 is the exponent, so when written in fraction form, it is the numerator. 3 is the index or root, so in fraction form it is the denominator.

2. Solve:

x^(2/3)^6 = x^(12/3) = x^4

Because the exponent 2/3 is raised to the power of 6, you can use the power rule, which basically just means that whenever an exponent is raised to an exponent, multiply them. So, 2/3 * 6 equals 12/3, and 12/3 equals 4, making your answer x^4.

5 0
3 years ago
Find the compunt intrest on rs 31250 at 12 % per annum for 12 1/2 years
postnew [5]

Answer:

<h2>$128847</h2>

Step-by-step explanation:

given Principle at 31250

and rate = 12%

and time 12.5 years

the amount would be given by the equation

P(1+\frac{rate}{100})^{time}

plug in values to get

31250(1+\frac{12}{100})^{12.5}

end up with value $128847

3 0
2 years ago
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