MATHEMATICS MIDDLE SCHOOL

Rewrite the quadratic function in intercept or factored form
g(x)=-25+x^2

Answers

Answer 1
Answer:

Answer:

g(x) = (x + 5)(x - 5).

Step-by-step explanation:

g(x) = -25 + x^2

g(x) = x^2 - 25

This is the difference of 2 squares so:

g(x) = (x + 5)(x - 5)  (answer).

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How many solutions does the equation have? a+5=1/5(5a+25)

Find two numbers the exact amswer is between 6×7381

Answers


the answer will be 44286

WILL GIVE BRAINLIEST!!!

Answers

Answer:

zero

Step-by-step explanation:

The lines are parallel ( they have the same slope)

 the slope is 1/2  ( up 1 over 2)

The y intercept is different.

The lines will never intersect.

Therefore there are zero solutions

Answer: Zero

Step-by-step explanation: Since the lines are parallel, the two lines will never be able to meet.

The line with equation ax+by=20 passes through the points(-2,10) and (1,5)
find a and b

Answers

ax+by=20 \n \n(-2,10) \n \n a*(-2)+b*10 = 20 \n \n-2a +10b = 20 \n \n (1,5)\n \n a*1+b*5 = 20 \n \n a +5b = 20
 
\begin{cases} -2a+10b =20\n a+5b =20 \ /*2\end{cases} \n \n\begin{cases} -2a+10b =20\n 2a+10b =40 \end{cases}\n--------\n 20b=60 \ / :20 \n \nb=(60)/(20) =3

-2a+10b=20 \n \n-2a +10*3=20 \n \n-2a +30=20\n \n-2a=20-30\n \n-2a=-10 \ /: (-2)

a=(10)/(2)=5\n \n\begin{cases} a= 5 \nb=3\end{cases}
ax+by=20\n\nfor\ (-2;\ 10)\to x=-2;\ y=10\ substitute\n\n-2a+10b=20\n\nfor\ (1;\ 5)\to x=1;\ y=5\ substitute\n\n1a+5b=20\n\n\n \left\{\begin{array}{ccc}-2a+10b=20&/:2\na+5b=20\end{array}\right
+\left\{\begin{array}{ccc}-a+5b=10\na+5b=20\end{array}\right\n------------\n.\ \ \ \ \ \ \ 10b=30\ \ \ \ /:10\n.\ \ \ \ \ \ \ \ b=3\n\n\left\{\begin{array}{ccc}b=3\na+5b=20\end{array}\right\n\left\{\begin{array}{ccc}b=3\na+5\cdot3=20\end{array}\right\n\left\{\begin{array}{ccc}b=3\na+15=20\end{array}\right\n\left\{\begin{array}{ccc}b=3\na=20-15\end{array}\right\n\left\{\begin{array}{ccc}b=3\na=5\end{array}\right


Answer:a=5\ and\ b=3\to5x+3y=20.

What are the solution(s) to the quadratic equation x2 – 25 = 0?O x= 5 and x = -5
O x = 25 and x = -25 A
O x = 125 and x = -125
O no real solution
Mark this and return
Save and Exit
Noy

Answers

Answer:

x = 5 and x = - 5

Step-by-step explanation:

Given

x² - 25 = 0 ← x² - 25 is a difference of squares and factors as

(x - 5)(x + 5) = 0

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 5 = 0 ⇒ x = - 5

How do you solve this problem? 6 x 2/5 =

Answers

You have to make 2/5 into a whole number , in this case a decimal
2/5 in decimal form = 0.4 
To make it easier for you 0.4 by 10 and then it will become  4
So 6x4=24
Then divide by 10 which will become 2.4
The answer is 2.4

A standard number cube with the numbers 1 through 6 is rolled.find the probability of rolling a number greater then 4

Answers

Answer:

1/3

Step-by-step explanation:

the total is 6 so thats our denominator

a number greater than 4 is 5,6 so its 2

2/6 is equal to 1/3

hope this helps

Answer: 1/3

Step-by-step explanation:

There are 6 numbers on a number cube.

So, there are 2 numbers greater than four. (5 and 6)

The odds of rolling a number greater than four is 2/6.

Simplify 2/6

2/6 = 1/3
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