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aleksley [76]
3 years ago
15

W at as the exact solutions of 2 = 5x + 22 (1 point)

Mathematics
2 answers:
evablogger [386]3 years ago
7 0

Answer:

x = -4

Step-by-step explanation:

Step 1:  2-(5*x+22)=0  (move all to left side)

Step 2: -20 - 5x  =   -5 • (x + 4)

Step 3: Solve :    -5   =  0

Step 4: Solve :    x+4 = 0

- Hope this helps! If you would like a more in-depth explanation please let me know.

Scrat [10]3 years ago
6 0

X= -4    

Your answer ^^^^

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Which expression is equivalent to 15x + 3?
adelina 88 [10]

Answer:

the answer is 15x+3=3(5x+1)

6 0
3 years ago
HELPPPPP!!! MATH HOMEWORK. IM STUMPED.
slavikrds [6]
First: 5
Second: 8
Third: 14

Hope this helps! :)
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3 0
3 years ago
The numbers x and y are inversely proportional. When the sum of x and y is 42, x is twice y. What is the value of y when x = -8?
dolphi86 [110]

Answer:

y= -4

Step-by-step explanation:

x+y=42.   We know that x plus y equals 42.

x=2y .   We also know that x equals twice y.

2y+y=42.   Since we know that x=2y, we're going to replace x with 2y from the original equation, simplified would be 3y=42.

y=14.   3y=42 simplified is y=14, this is because we divided both sides by 3 (since 3 and 42 are both divisible by 3) (btw divisible by 3 simply means that it can be divided by 3)

x+14=42.   Now that we know what y equals, let's replace y with 14 from the original equation.

x=28.  Now that we know that x=28 and y=14, we know that y is always x/2.

When x=-8, we divide it by 2 and get, -4.

Not absolutely positive as this was all mental math, but hope this helps! :)

4 0
3 years ago
I need help if you can thanks?
9966 [12]

Answer:

what do you want me to do subtraction, addition, multiplication or division?

Step-by-step explanation:

3 0
2 years ago
What is the equation of the circle with center (2, –5) that passes through the point (–2, 10)?
Travka [436]
The standard equation of a circle is

(x-h)^2 + (y-k)^2 = r^2

where the center is at point (h,k)

From the statement of the problem, it is already established that h = 2 and k = -5. What we have to determine is the value of r. This could be calculated by calculating the distance between the center and point (-2,10). The formula would be

r = square root [(x1-x2)^2 + (y1-y2)^2)]
r = square root [(2--2)^2 + (-5-10)^2)]
r = square root (241)
r^2 = 241

Thus, the equation of the circle is

(x-2)^{2} + (y+5)^{2} =241
4 0
2 years ago
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