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3 years ago

Determine the domain and range of the following relation. x + 2 = [y]

Mathematics

1 answer:

AleksandrR [38]3 years ago

4 0

Answer:

Domain: all real numbers

Range: all real numbers

Step-by-step explanation:

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15. Solve for the specified variable: - х + 7 8 - 10; for y.

Andreyy89

Answer:

$y=80-\frac{8x}{7}$

Step-by-step explanation:

15). Given equation is,

$\frac{x}{7}+ \frac{y}{8}=10$

Multiply the equation by 8,

$8(\frac{x}{7}+ \frac{y}{8})=10\times 8$

$\frac{8x}{7}+y=80$

Subtract $\frac{8x}{7}$ from both the sides of the equation,

$\frac{8x}{7}+y-\frac{8x}{7}=80-\frac{8x}{7}$

$y=80-\frac{8x}{7}$

Therefore, value of the variable 'y' will be,

$y=80-\frac{8x}{7}$

3 0

3 years ago

12. 8а + 4 = 4 + 8а property

ankoles [38]

Answer:

Commutative Property of Addition

Step-by-step explanation:

8а + 4 = 4 + 8а

Commutative Property of Addition a + b = b + a

We changed the order of the addition

7 0

3 years ago

Write an equation that represents the line. Use exact numbers

malfutka [58]

Answer:

f(x) = -2x -3

Step-by-step explanation:

-3 is the point in the y-axis, making it value b

the slope is 1/-2 making the value m = -2

8 0

3 years ago

You plant a spruce tree that grows 4 inches per year and a hemlock tree that grows _____ inches per year. The initial heights ar

UNO [17]

Complete Question:

You plant an 8-inch spruce tree that grows 4 inches per year and a 14-inch hemlock tree that grows 6 inches per year.

The initial heights are shown.

Write a system of linear equations that represents this situation.

Answer:

$s(x) = 8 + 4x$

$h(x) = 14 + 6x$

Step-by-step explanation:

Given

Spruce Tree (s):

$Initial\ Height = 8$

$Growth = 4$ (yearly)

Hemlock Tree (h):

$Initial\ Height = 14$

$Growth = 6$ (yearly)

Required

Represent as system of linear equations

Let the number of years be x.

In both cases, the equation can be formed using:

$Equation = Initial\ Height + Growth * x$

For Spruce Tree (s):

$s(x) = 8 + 4 * x$

$s(x) = 8 + 4x$

For Hemlock Tree (h):

$h(x) = 14 + 6 * x$

$h(x) = 14 + 6x$

Hence, the equations are $s(x) = 8 + 4x$ and $h(x) = 14 + 6x$

3 0

3 years ago

Help me in math tasks please

Ivan

Answer:

1. 3/5 c

2. 7 c

3. 2/5 b

4. $3.24 c

5. -3.2 b

Step-by-step explanation:

2/5 + 1/5 = 3/5

a negative + a negative = a positive

2+5 = 7

terminating means the decimal ends. When u divide a & c they keep on going but 2/5 ends

divide 16.8 by 5.19 = 3.23 round up so 3.24

multiply the two together to get the answer

3 0

4 years ago