MATHEMATICS HIGH SCHOOL

1Solve this quadratic using two different
methods. Show both methods.
x2 + 4x - 5 = 0

Answers

Answer 1
Answer:

Answer:

x = -5 or x = 1

Step-by-step explanation:

x^(2) + 4x - 5 = 0\n(x+5)(x-1)=0\n

Related Questions

Is the set of multiples of 4 closed under addition? Explain why or provide a counterexample if not.A. Yes, because the sum of any two multiples of 4 is also a multiple of 4. B. Yes, because the sum of any two multiples of 4 is also a multiple of 8. C. No, and a counterexample is –4 + (–8) = –12. D. No, and a counterexample is 26 + 16 = 42.
What is greatest to least 1.001,1.1,1.403,1.078
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Add these mixed numbers 4 4/7+3 2/7
Round the answer to the nearest cent. 5% tax on $20 is $

Find the sum of the geometric series 3+12+48+...+12,288

Answers

Answer:

16383

Step-by-step explanation:

12288+3072+767+192+48+12+3 =

Answer:

I think that you need to add obvoiusly.

12351 Thats what I got. But Im not sure if its correct. I hope his helps

Step-by-step explanation:

X^2−1.78x, if x=2.78

Answers

Answer:

2.78

Step-by-step explanation:

We are given the expression x^2-1.78x

As we know that x=2.78, we can plug that value into the expression and simplify it

(2.78)^2-1.78(2.78)\n\n7.7284-4.9484\n\n2.78

What is the equation of a circle with (2,-5) and radius 4

Answers

it is 
(x-2)^2+(y+5)^2=16

A card is drawn from a standard deck of 52 playing cards. find the probability that the card is a queen or a club. express the probability as a simplified fraction.

Answers

The probability that the card is a queen or a club will be  (4)/(13) .

What is Probability ?

Probability is the ratio of the number of possible outcomes to the total number of outcomes.

Probability =(Number\ of\ possible\ outcomes)/(Total\ number\ of\ outcomes)

We have,

Standard deck of 52 cards,

So,

Total number of clubs in deck =13

So,

Total number of queens in deck =4-1=3

Now,

Total number of possible outcomes i.e.

The card is a queen or a club =3+13=16

So,

Probability =(Number\ of\ possible\ outcomes)/(Total\ number\ of\ outcomes)

                  =(16)/(52)=(4)/(13)

So,  the probability that the card is a queen or a club is (4)/(13) .

Hence, we can say that the probability that the card is a queen or a club will be  (4)/(13) .

To know more about Probability click here

brainly.com/question/27579447

#SPJ2

13+3= 16/52 = 30.8% 16/52 = 8/26 = 4/13

Help please just type down the answer asap.

Answers

Answer:

40

Step-by-step explanation:

based off the others.
40
Just add 100 + 40 because each angle will always add back to 180

(m+2)(m+3)=(m+2)(m-2) what is the answer please 

Answers

(m+2)(m+3)=(m+2)(m-2)\n\nm^2+3m+2m+6=m^2-4\n\nm^2-m^2+5m=-4-6\n\n5m=-10\ \ \ \ /:5\n\nm=-2
The first time you look at this, you would think that you can just cancel the
(m+2) off of each side. But then you're left with  (m+3) = (m-2), and there's
no solution for this.  So you have to go back and do it the hard way.

Expand each side of the equation. (Clear the parentheses.)

m² + 5m + 6 = m² - 4

Subtract m² from each side:

5m + 6 = -4

Subtract 6 from each side:

5m = -10

Divide each side by 5:

m = -2
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