All categories

3 years ago

Find the solutions to the equation below x^2-25=0

Mathematics

2 answers:

Arlecino [84]3 years ago

3 0

Answer:

x=5,x=-5

Step-by-step explanation:

The screenshot below will explain the answer

almond37 [142]3 years ago

3 0

Answer:

x = 5, -5

Step-by-step explanation:

Find the roots of $x^{2} -25=0$ by solving for x.

Add 25 to both sides

$x^{2} =25$

Square root both sides

$x = 5$

$x=-5$

You might be interested in

David wants to pack 574 cereal bars into bags of 10 and bags of 8 the number of bags of 8 is 2 more than the bags of 10. How man

BabaBlast [244]

Answer: Number of bags of 8. = 33

Number of bags of 10. = 31

Step-by-step explanation:

Let x = Number of bags of 8.

y = Number of bags of 10.

As per given.

$8x+10y= 574$ (i)

$x=y+2$ (ii)

Put value of x from (ii) in (i)

$8(y+2)+10y= 574\\\\\Rightarrow\ 8y+16+10y=574\\\\\Rightarrow\ 18y=574-16\\\\\Rightarrow\ 18y=558\\\\\Rightarrow\ y=\dfrac{558}{18}\\\\\Rightarrow\ y=18$

Put this in (i), x= 31+2=33

Hence,

Number of bags of 8. = 33

Number of bags of 10. = 31

6 0

3 years ago

C-c+a+ |a|; use a = 4, and c=5

Ulleksa [173]

Answer:

c-c+a+|a|

5-5+4+|4|

Step-by-step explanation:

5 0

3 years ago

Help? please.........

UkoKoshka [18]

Answer: 60°

Step-by-step explanation: A straight angle is 180°

180°- 120° = 60°

8 0

3 years ago

10]The graph of a function is a line that passes through the coordinates (2, 11) and (8. 14).Which is an equation in terms of x

aksik [14]

We know that the graph of a function is a line that passes through the coordinates (2, 11) and (8, 14) and we must find the equation for the line.

1. We must use the next formula to find the slope

$m=\frac{y_2-y_1}{x_2-x_1}$

Where (x1, y1) and (x2, y2) are the points.

Now, replacing the points in the formula for the slope

$m=\frac{14-11}{8-2}=\frac{3}{6}=\frac{1}{2}$

2. We must replace the slope and one of the points in the next formula

$y-y_1=m(x-x_1)$

Now, replacing the slope and the point (2, 11)

$\begin{gathered} y-11=\frac{1}{2}(x-2) \\ \end{gathered}$

3. We must delete the parenthesis and solve the equation for y

$\begin{gathered} y-11=\frac{1}{2}x-\frac{1}{2}\cdot2 \\ y-11=\frac{1}{2}x-1 \\ y=\frac{1}{2}x-1+11 \\ y=\frac{1}{2}x+10 \end{gathered}$

ANSWER:

$y=\frac{1}{2}x+10$

8 0

1 year ago

Evan is going to the country fair this weekend. The admission to the fair is five dollars and the cost per ride is $.50. If his

Naya [18.7K]

Answer:

I believe he can go on 30 rides.

Step-by-step explanation:

The equation would be 5 + .5x = 20

Because $5 to get in, plus $.50 per ride (x is number of rides you are solving for), and $20 is total amount you can spend.

So, .5x=15 so x=30

6 0

4 years ago