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fuations - Quiz - Level H
\newline
The equation
y
=
−
20
x
+
140
y=-20 x+140
y
=
−
20
x
+
140
gives the
\newline
180
180
180
\newline
y
y
y
\newline
160
160
160
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Precalculus
Solve radical equations
Full solution
Q.
fuations - Quiz - Level H
\newline
The equation
y
=
−
20
x
+
140
y=-20 x+140
y
=
−
20
x
+
140
gives the
\newline
180
180
180
\newline
y
y
y
\newline
160
160
160
Plug in x value:
Plug in the value of
x
x
x
into the equation.
y
=
−
20
×
7
+
140
y = -20 \times 7 + 140
y
=
−
20
×
7
+
140
Calculate multiplication:
Calculate the multiplication part.
\newline
−
20
×
7
=
−
140
-20 \times 7 = -140
−
20
×
7
=
−
140
Addition calculation:
Now, add
140
140
140
to
−
140
-140
−
140
.
y
=
−
140
+
140
y = -140 + 140
y
=
−
140
+
140
Simplify to find
y
y
y
:
Simplify the addition to find the value of
y
y
y
.
y
=
0
y = 0
y
=
0
More problems from Solve radical equations
Question
What is the domain of this function?
\newline
y
=
x
y = \sqrt{x}
y
=
x
\newline
Choices:
\newline
{
x
∣
x
≥
0
}
\{x|x \geq 0\}
{
x
∣
x
≥
0
}
\newline
{
x
∣
x
≤
0
}
\{x|x \leq 0\}
{
x
∣
x
≤
0
}
\newline
{
x
∣
x
<
0
}
\{x | x < 0\}
{
x
∣
x
<
0
}
\newline
{
x
∣
x
>
0
}
\{x|x>0\}
{
x
∣
x
>
0
}
Get tutor help
Posted 2 months ago
Question
Find the real-number root.
\newline
16
\sqrt{16}
16
\newline
\newline
Write your answer in simplified form.
\newline
_
_
_
_
\_\_\_\_
____
Get tutor help
Posted 2 months ago
Question
Find the real-number root.
\newline
9
16
\sqrt{\frac{9}{16}}
16
9
\newline
Simplify your answer and write it as a decimal or as a proper or improper fraction.
\newline
_
_
_
_
_
\_\_\_\_\_
_____
Get tutor help
Posted 2 months ago
Question
Find the real-number root using a calculator. Round your answer to the nearest thousandth.
\newline
`\sqrt{957} `
\newline
_______
Get tutor help
Posted 2 months ago
Question
Multiply. Write your answer in simplest form.
\newline
273
×
42
\sqrt{273} \times \sqrt{42}
273
×
42
\newline
______
Get tutor help
Posted 1 month ago
Question
Simplify.
\newline
63
4
\sqrt{\frac{63}{4}}
4
63
\newline
______
Get tutor help
Posted 2 months ago
Question
Simplify. Rationalize the denominator.
\newline
−
4
9
−
2
\frac{-4}{9 - \sqrt{2}}
9
−
2
−
4
\newline
______
Get tutor help
Posted 2 months ago
Question
Solve for
z
z
z
.
\newline
16
=
z
16 = \sqrt{z}
16
=
z
\newline
z
=
z =
z
=
_____
Get tutor help
Posted 2 months ago
Question
Solve for
p
p
p
.
\newline
8
=
p
8 = \sqrt{p}
8
=
p
\newline
p
=
p =
p
=
_____
Get tutor help
Posted 2 months ago
Question
Solve for
p
p
p
.
\newline
4
p
=
10
+
3
p
\sqrt{4p} = \sqrt{10 + 3p}
4
p
=
10
+
3
p
\newline
p
=
p =
p
=
_____
Get tutor help
Posted 2 months ago