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marin [14]
3 years ago
12

Find the value of x. Round to the nearest tenth.

Mathematics
1 answer:
svlad2 [7]3 years ago
6 0

Answer:

3.13

Step-by-step explanation:

2.1^-1.4^2 = 2.45

Square root 2.45 + 1.56

1.56 x 2= 3.13

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Solve the system of equations for 7x+2y=16 and -21x-6y=24
Georgia [21]
Simplifying
7x + 2y = 16

Solving
7x + 2y = 16

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2y' to each side of the equation.
7x + 2y + -2y = 16 + -2y

Combine like terms: 2y + -2y = 0
7x + 0 = 16 + -2y
7x = 16 + -2y

Divide each side by '7'.
x = 2.285714286 + -0.2857142857y

Simplifying
x = 2.285714286 + -0.2857142857y
6 0
3 years ago
Zeus Industries bought a computer for $2859. It is expected to depreciate at a rate of 21% per year. What will the value of the
mart [117]
100-21=79
2859(0.79)^3=1409.598
worth $1409.60
7 0
3 years ago
Which expressions are equivalent to 5p+3p+(-9)5p+3p+(−9)5, p, plus, 3, p, plus, (, minus, 9, )? Choose all answers that apply:
Lemur [1.5K]

Answer:

Option B.

Step-by-step explanation:

The given expression is

5p+3p+(-9)

We need to find an expression which is equivalent to the given expression.

Combine like terms.

(5p+3p)-9

8p-9

The simplified form of given expression is 8p-9. So, option A is incorrect.

In option B, the given expression

3(p+(-3))+5p

3(p-3)+5p

Using distributive property, we get

3p-9+5p

Combined liker terms.

(5p+3p)-9

8p-9

It is same as the simplified form of given expression.

Therefore, the expression 3(p+(-3))+5p is equivalent to the given expression and correct option is B.

7 0
3 years ago
Read 2 more answers
What is the value of x?<br><br> x = 45°<br> x = 65°<br> x = 70°<br> x = 115°
dem82 [27]

The three inside angles of a triangle need to equal 180 degrees.

To find X subtract the two known angles from 180.

X = 180 - 45 - 70

X = 65 degrees.

8 0
3 years ago
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Joseph and Molly each have coin collections.
Ugo [173]

Answer:

Joseph has 175

Molly has 275

Step-by-step explanation:

y = 15x + 25

y = 25x + 25

You can put this into Desmos

Red is Joseph and Molly is blue

Molly - (10, 275)

Joseph - (10, 175)

x = the time

y = money over time

6 0
3 years ago
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