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garri49 [273]
3 years ago
13

7.1-x=4.9? Need help​

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
8 0
Let's solve your equation step-by-step.
7.1
−
x
=
4.9
Step 1: Simplify both sides of the equation.
7.1
−
x
=
4.9
7.1
+
−
x
=
4.9
−
x
+
7.1
=
4.9
Step 2: Subtract 7.1 from both sides.
−
x
+
7.1
−
7.1
=
4.9
−
7.1
−
x
=
−
2.2
Step 3: Divide both sides by -1.
−
x
−
1
=
−
2.2
−
1
x
=
2.2
Novosadov [1.4K]3 years ago
6 0

Answer:

Take 7.1-4.9=x

Step-by-step explanation:

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Geometry B question!
PIT_PIT [208]
<u>Given the 45-90-45 triangle property:</u>
Hyopentuse = 9√2, therefore:
Base = 9  + 9  = 18 m
Height = 9 m

Area of the top triangle  = 1/2 (9) (18)  = 81 m²
Area of the bottom triangle = 1/2(6)(18) = 54 m²
Tota area  = 81 + 54 = 135 m²

Answer: 135 m²
6 0
3 years ago
Solve y=f(x) for x . f(x)=23x+4 x= Question 2 Find the input when the output is 2. The input is .
Fantom [35]

Let's find f(x) = 2, which is essentially what the problem is asking, what x corresponds to an output of 2.


Let's solve below:

f(x) = 2

  • Setting up what we know

23x + 4 = 2

  • Substituting in 23x + 4 for f(x) (I'm not sure if this is the correct expression for f(x) due to formatting issues)

23x = -2

  • Subtract 4 from both sides to make a step to isolate x (what we are trying to find)

x = - \frac{2}{23}

  • Divide both sides of the equation by 23 to isolate x

Thus the input is \boxed{x = - \frac{2}{23}}.

4 0
3 years ago
Whats the slope for this question?
Nastasia [14]

Answer:

Slope:  1

Step-by-step explanation:

A variable is always worth 1 if there is no number in front of it. In this case there is no number, so just draw in a one.

6 0
3 years ago
Read 2 more answers
(8x^3 - x) - (10x - 5x^2 - 3x^3) <br> Show your work.
sergeinik [125]

Let's simplify step-by-step.
8
x
3
−
x
−
(
10
x
−
5
x
2
−
3
x
3
)
Distribute the Negative Sign:
=
8
x
3
−
x
+
−
1
(
10
x
−
5
x
2
−
3
x
3
)
=
8
x
3
+
−
x
+
−
1
(
10
x
)
+
−
1
(
−
5
x
2
)
+
−
1
(
−
3
x
3
)
=
8
x
3
+
−
x
+
−
10
x
+
5
x
2
+
3
x
3
Combine Like Terms:
=
8
x
3
+
−
x
+
−
10
x
+
5
x
2
+
3
x
3
=
(
8
x
3
+
3
x
3
)
+
(
5
x
2
)
+
(
−
x
+
−
10
x
)
=
11
x
3
+
5
x
2
+
−
11
x
Answer:
=
11
x
3
+
5
x
2
−
11
x


Brainliest Please:)
6 0
4 years ago
Read 2 more answers
Given that a trapezoid has the following dimensions, find the area. Area = ________ units2
rjkz [21]
The formula for the area of a trapezoid is A = a+b/2 * h. So just plug in the dimensions.
A = 5 + 3/2 * 5
A = 8/2 * 5
A = 4 * 5
A = 20 units²
I hope this helps love! :)
8 0
3 years ago
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