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3 years ago

5x+8=5(x+3) Can anyone help with this please. I am really confused. ???

1 answer:

4 0

Use the distributive property to multiply the right side giving you 5x+15, if you subtract 5x from each side you get 8=15 which is never true, the equation has no solution.

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A line passes through the point (-8,9) and has a slope of 5/4.

Masteriza [31]

Answer:

The answer is

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

$y - y_1 = m(x - x_1)$

where

m is the slope

( x1 , y1) is the point

From the question the point is (-8,9) and slope 5/4

The equation of the line is

$y - 9 = \frac{5}{4} (x + 8) \\ y - 9 = \frac{5}{4} x + 10 \\ y = \frac{5}{4} x + 10 + 9$

We have the final answer as

$y = \frac{5}{4} x + 19 \\$

Hope this helps you

5 0

4 years ago

Prove that if a and b are integers, then a^2-4b egal or non-egal 2

Lera25 [3.4K]

Answer:

tex]a^2 - 4b \neq 2[/tex]

Step-by-step explanation:

We are given that a and b are integers, then we need to show that $a^2 - 4b \neq 2$

Let $a^2 - 4b = 2$

If a is an even integer, then it can be written as $a = 2c$ , then,

$a^2 - 4b = 2\\(2c)^2 - 4b =2\\4(c^2 -b) = 2\\(c^2 -b) =\frac{1}{2}$

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

If a is an odd integer, then it can be written as $a = 2c+1$ , then,

$a^2 - 4b = 2\\(2c+1)^2 - 4b =2\\4(c^2+c-b) = 2\\(c^2+c-b) =\frac{1}{4}$

RHS is a fraction but LHS can never be a fraction, thus it is impossible.

Thus, our assumption was wrong and $a^2 - 4b \neq 2$ .

7 0

3 years ago

The price of an office chair was $86. The tax rate was 6%. What was the tax on the chair?

Tamiku [17]

Answer:

X.06

_____

516

+ 0000

_________

05.16

Step-by-step explanation:

3 0

3 years ago

The width of a rectangular room is 60 percent of its length. the length of the room is 10 feet. what is the area of the room

blsea [12.9K]

The width is 6 feet because 10•0.6=6

4 0

4 years ago

Read 2 more answers

The symbol 5! means 5* 4*3*2*1. What is the greatest odd integer that is a factor of 5!?

NNADVOKAT [17]

Answer:

Step-by-step explanation:

5 ! = 120

Since 5 ! = 5 × 4 × 3 × 2 × 1, then

5 × 3 = 15 is the greatest odd factor of 5 !

4 0

3 years ago