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marta [7]
4 years ago
14

Given the number x=78 and y=-13 which statement is true

Mathematics
2 answers:
Phoenix [80]4 years ago
5 0

Answer:

jvfkdbvhjfdbvhghfdjchvjdhjcvgkrdr

Step-by-step explanation:

no

rjkz [21]4 years ago
4 0

|x| = |78| = 78

so x = 78

and

|y| = |-13| =  13

so y = 13

Answer is C.  |x| = 78 and  |y| = 13

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2x-4y=8 and 7x-3y=61 solve by substitution
Ratling [72]

Answer:

(10, 3)

Step-by-step explanation:

Solve by Substitution

2x − 4y = 8 and 7x − 3y = 61

Solve for x in the first equation.

x = 4 + 2y 7x − 3y = 61

Replace all occurrences of x with 4 + 2y in each e quation.

Replace all occurrences of x in 7x − 3y = 61 with 4 + 2y. 7 (4 + 2y) − 3y = 61

x = 4 + 2y

Simplify 7 (4 + 2y) − 3y.

28 + 11y = 61

x = 4 + 2y

Solve for y in the first equation.

Move all terms not containing y to the right side of the equation.

11y = 33

x = 4 + 2y

 Divide each term by 11 and simplify.

y = 3

x = 4 + 2y

 

Replace all occurrences of y with 3 in each equation.

Replace all occurrences of y in x = 4 + 2y with 3. x = 4 + 2 (3)

y = 3

Simplify 4 + 2 (3).

x = 10

y = 3

The solution to the system is the complete set of ordered pairs that are valid solutions.

(10, 3)

The result can be shown in multiple forms.

Point Form:

(10, 3)

Equation Form:

x = 10, y = 3

4 0
3 years ago
Read 2 more answers
I need help please! I've been stuck on this for a week and its really stressful lol
worty [1.4K]

Answer:

y=0.2*4^{x}

Step-by-step explanation:

Notice when x increases 1, y is 4 times the previous one, so

the function is like y=C*4^{x}

To determine the constant C, put any pair of (x, y)

Use x = 0, y = 0.2, so

0.2 = C*4^{0} = C * 1 = C

then y=0.2*4^{x}

5 0
3 years ago
Read 2 more answers
What is 6 7/12-2 1/6
Crank
4 5/12 Is the answer.

I hope this helps. :)
3 0
4 years ago
The volume of an oblique pyramid with a square base is V units3 and the height is h units.
TiliK225 [7]
The volume of a quadrangular base pyramid is:
 V = (1/3) * (Ab) * (h)
 Where,
 Ab: base area
 h: height
 Clearing the area of the base we have:
 Ab = (3 * V) / (h)
 Answer:
 
An expression that represents the area of the base of the pyramid is:
 
A) 3v / h units
8 0
3 years ago
Read 2 more answers
I'd really appreciate if anyone helped! :)
dlinn [17]

In order for the data set to represent a function, there can be no duplicates of the first value.

A. 1 is used as the first value more than once       <em> it is NOT a function</em>

B. 3 is used as the first value more than once      <em> it is NOT a function</em>

C. no first number is used more than once            <em>it IS a function</em>

D. 3 is used as the first value more than once      <em> it is NOT a function</em>

Answer: C

8 0
3 years ago
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