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Aleksandr-060686 [28]

2 years ago

14

I will mark brainiest - 6 < x < -2

2 answers:

Rasek [7]2 years ago

8 0

Hi! what question are you asking? do you need it on a number line?

Karo-lina-s [1.5K]2 years ago

4 0

This ain’t neat but just draw a number line that goes from 0 through -10 then draw two open circles on -6 and -2 and connect them.

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What is the slope between the points (3,-4)&(7,6)?

olchik [2.2K]

Answer: The slope is $\frac{5}{2}$

Step-by-step explanation:

1. You need to apply the following formula for calculate the slope:

$m=\frac{y_{2}-y_1}{x_{2}-x_1}$

2. Given the points, (3,-4) and (7,6), you have:

$y_{2}=6\\y_1=-4\\x_{2}=7\\x_{1}=3$

3. Substitute these values into the formula for calculate the slope, as following:

$m=\frac{6-(-4)}{7-3}\\m=\frac{10}{4}$

4. Simplify the result. Therefore, you obtain that the slope is:

$m=\frac{5}{2}$

5 0

3 years ago

Solve by factoring...<br><br> 1) y=6x^2-13x-5<br><br> 2) y=4x^2-7x+3

Amanda [17]

Answer:

1) $x=-\frac{1}{3}, x=\frac{5}{2}$

2) $x=1, x=\frac{3}{4}$

Step-by-step explanation:

1)

Given

$f(y)= 6x^{2} -13x-5=0$

Equating above equation.

$6x^{2} +2x-15-5=0$

$2x(3x+1)-5(3x+1)=0$

$(3x+1)(2x-5)=0$

Solving for both the equation

$3x+1=0$

$3x=-1$

$x=-\frac{1}{3}$

$2x-5=0$

$2x=5$

$x=\frac{5}{2}$

$x=-\frac{1}{3} ,x=\frac{5}{2}$

2)

Given

$f(y)=4x^{2} -7x+3=0$

$4x^{2} -4x-3x+3=0$

$4x(x-1)-3(x-1)=0$

$(x-1)(4x-3)=0$

Solving for both equation

$x-1=0$

$x=1$

$4x-3=0$

$4x=3$

$x=\frac{3}{4}$

$x=1, x=\frac{3}{4}$

8 0

4 years ago

A customer buys three bottle of water at ninety-nine cents each. there is seven percent tax on each bottle. What is the total bi

yuradex [85]

The tax is found by mult. the total purchase by 1.07:

1.07(3)($0.99) = $3.18 (rounded up to the nearest cent)

5 0

3 years ago

If n and k are positive integers, is n divisible by 6 ? (1) n = k(k + 1)(k – 1) (2) k – 1 is a multiple of 3.

xz_007 [3.2K]

Answer: yes, it is

Step-by-step explanation:

A number is divisible by 6 if it is divisible by 2 and 3 simultaniously.

n = k(k+1)(k-1)

If k-1 is a multiple of 3, n is divisible by 3, so one of the requirements is ok.

Now, if k-1 is a multiple of 3, it can be even or odd.

if k-1 is even, then it is divisible by 2 and as it is divisible by 3 as well, n is divisible by 6

if k-1 is odd, then k and k+1 is even, hence, divisible by 2.

As n = k(k+1)(k-1), n is also divisible by 6.

4 0

4 years ago

The perimeter of sasquare is 20 ft. If you increase the length of the square by 2 feet and decrease the width by 1 foot what is

ElenaW [278]

Perimeter of a square = 4s = 20ft
s = 20/4 = 5 feet

New length = 5 + 2 = 7 ft
New width = 5 - 1 = 4ft
New perimeter = 2(7 + 4) = 2(11) = 22ft

7 0

3 years ago