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Reika [66]
4 years ago
11

The square of the sum of a number and 3 is 16. Find the number.(There are two solutions.)

Mathematics
2 answers:
iren2701 [21]4 years ago
5 0
1,-7 hope this helps
mote1985 [20]4 years ago
3 0

Answer:

1 , -7

Step-by-step explanation:

(x+3)² = 16

then

(x+3)² = 4²

then

|x+3| = 4

then

x+3=4 or x+3= -4

then

x=4-3=1  or  x= -4-3= -7

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X/7=3/2 solve equation, check solution<br>​
nexus9112 [7]

Answer:

Step-by-step explanation:

X/7=3/2  multiply by : 5

x = 21/2

6 0
3 years ago
Chelsea wrote several equations and determined that only one of the equations has exactly one solution. Which of these
Aneli [31]

Answer:

a

Step-by-step explanation:

6 0
4 years ago
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I’m not really sure how to do this but if someone could please help with explanation on how to do it thank you
masya89 [10]

Answer: a because it’s using the commutative property of addition meaning it’s the same mathematical statement, it’s just moved around

Step-by-step explanation:

3 0
3 years ago
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Help please!!!!!!!!!!!!! Explain if possible
iris [78.8K]
Answer is C.
For every option, sub in the value and find the answer that matches the equation!

Example for option A, F(x) = x + 4 and G(x) = x²
G(F(x)) = G(x + 4) ーー> sub in the value of F(x)
Let's take the subbed in value, (x + 4) as x, and this x will be the x for G(x).

∴ Since G(x) is x²
G(x + 4) = (x + 4)² ーー> remember (x + 4) is represented as x.
= x² + 16
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4 0
4 years ago
Graph the line by plotting any two ordered pairs that satisfy the equation.
ollegr [7]

Answer:

(0,-4)

(3,0)

Step-by-step explanation:

Let start at the orgin.

This is a linear equation since the equation is in the form of

y = mx + b

where m is the slope and b is the y intercept.

Since we starting at the orgin, and b is our y intercept.

Our first point is

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since the slope is 4/3.

We would rise 4 from the y value and run 3 to the x value.

In other words, to find your second point, go up 4 units from the first point and move to the right 3 units.

So our next point is at

(3,0).

U can continously go up 4 units and move 3 units to the right to find other points.

6 0
3 years ago
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