What are the solutions to the equation x² = 625? Choose all answers that are correct.

A.
–312.5

B.
–25

C.
25

D.
312.5

Answers

Answer 1

Answer: $(625)/(26) or (625)/(-25)$

your answers are B. 25 and C -25

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The set of ordered pairs shown represents a function, f,{(–5, 3), (4, 9), (3, –2), (0, 6)}Select THREE ordered pairs that could be added to the set that would allow f to remain a function.Question 10 options:A) (-3, -2)B) (4, 0)C) (0, -1)D) (1, 6)E) (2, 3)F) (-5, 9)
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The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over the 7 weeks?

Answers

The price dropped by forty two dollars. We can work this out by simplymultiplying six, the number that we know the jeans were reduced by eachweek, by seven, the number of weeks that the jeans continued to reducein price for. Six times seven is of course forty two.

Answer:

The price dropped by $42.

Is -2 square root 3 rational

Answers

Answer: Your gonna need to post a screen shot of the picture because no one can answer anything off of this

Step-by-step explanation:

Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony

Answers

9 more years
Tony will be 16
Mr Jacob will be 64
16x4=64

$x-years\n \n 55+x=4(7+x)\n 55+x=28+4x\n 3x=27\n x=9\n \n Answer:Mr.\ Jacobs\ will\ 64\ years.$

Solve the quadratic equation by completing the square. 2x2 + 3x - 4 = 0

Answers

Answer: x = 0

Step-by-step explanation:

4 + 3x - 4= 0

3x=0 (divide both sides by 3)

x= 0/3

x = 0

Step-by-step explanation:

$2 {x}^(2) + 3x - 4 = 0 \n 16 {x}^(2) + 24x - 32 = 0 \n 16 {x}^(2) + 24x + 9 = 41 \n {(4x)}^(2) + 2 * 4x * 3 + {(3)}^(2) = 41 \n {(4x + 3)}^(2) = 41 \n |4x + 3| = √(41) \n 4x + 3 = + - √(41) \n 4x = - 3 + - √(41) \n x = ( - 3 + - √(41) )/(4)$

A triangle is graphed in the coordinate plane. The vertices of the triangle have coordinates (–5, 2), (7, 2), and (7, –3).What is the perimeter of the triangle?

A.
13

B.
34

C.
17

D.
30

Answers

Draw a coordinate system and put the points into it. This is the easiest way to understand this. You can simply measure two sides of the triangel after this by looking at your drawing, then use the Pythagorean theorem to get the length of the last side.

Another method to get the lentgth of two sides:
By looking at the coordinates you can see that (-5,2) and (7,2) gives one side, which is 12 long (the length from -5 to 7) and (7,2), (7,-3) gives another side, which has a length of 5 (from 2 to -3). Use the Pythagorean theorem to get the last side:
5^2 + 12^2 = x^2
25 + 144 = x^2
169 = x^2
13 = x

You need the perimeter so simply add all the sides together: 12+5+13= 30

you will have to use a ruler for this on the chart

Factors of 7 please!!!!!