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4 years ago

If it’s true or false

Mathematics

2 answers:

Anvisha [2.4K]4 years ago

7 0

Answer:

Step-by-step explanation:

True

serious [3.7K]4 years ago

3 0

This is 100% true... If the market value is high then your taxes are high and if they aren’t they aren’t.

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PLEASE HELP! SOLVE { X+Y=4 {7X+9Y=42

swat32

Answer:

Step-by-step explanation:

x + y = 4 ---------------(i)

x = 4-y

7x + 9y = 42 -----------(ii)

Plug in x = 4-y in equ (ii)

7*(4 - y) + 9y = 42

28 - 7y +9y = 42

28 + 2y = 42

2y = 42 - 28

2y = 14

y = 14/2

y = 7

x = 4 - y

x = 4 - 7

x = -3

5 0

3 years ago

Read 2 more answers

What is an equation in slope-intercept form for the line that passes through the points (1,-3) and (3,1)

sergey [27]

Step-by-step explanation:

Hey there!

Note: Use double point formula for finding the eqaution which passes through two points.

Given;

The points are; (1,-3) and (3,1).

Use double point formula.

$(y - y1) = \frac{y2 - y1}{x2 - x2} (y - y1)$

Put all values.

$(y + 3) = \frac{1 + 3}{3 - 1} (x - 1)$

Simplify it.

$(y + 3) = \frac{4}{2} (x - 1)$

$y + 3 = 2(x - 1)$

$y + 3 = 2x - 2$

$y = 2x - 2 - 3$

$y = 2x - 5$

Therefore, the eqaution is y = 2x-5.

Alternative:

Steps:

Find slope using slope formula and use one point formula.
Simplify in the form of y = mx+c form.

Formula:

Slope = (y2-y1)/(x2-x1)
One point formula= (y-y1)= m(x-x1)

The points are; (1,-3) and (3,1).

Now;

Slope= (1- (-3))/(3-1)

= (1+3)/2

= 2

Again;

Using one-point formula.

(y+3) = 2(x-1)

y+3= 2x-2

y = 2x -5

Therefore, the equation is y = 2x-5.

(You can follow up any method you want)

Hope it helps....

3 0

3 years ago

Bi-Ready

Sphinxa [80]

Answer:

The length of the rectangle is $\dfrac{ 1}{3} \text{ feet}$ .

Step-by-step explanation:

The complete question is: The area of a rectangle is 7/9 square feet. The width of the rectangle is 2 1/3 feet. What is the length of the rectangle?

Let the length of the rectangle be represented as 'L' and the width of the rectangle be represented as 'W'.

As we know that the area of the rectangle is given by;

Area of rectangle = Length of rectangle $\times$ Width of rectangle

A = L $\times$ W

Here, we know the value of A = 7/9 square feet and W = 2 1/3 feet.

SO, $\frac{7}{9} = \text{L} \times 2\frac{1}{3}$

$\frac{7}{9} = \text{L} \times \frac{7}{3}$

$\text{L} = \frac{7\times 3}{9\times 7}$

$\text{L} = \frac{ 1}{3} \text{ feet}$

Hence, the length of the rectangle is $\frac{ 1}{3} \text{ feet}$ .

6 0

3 years ago

0.355555555... as a fraction

Pie

Answer:

7111/2000...........

5 0

3 years ago

If the square of twice a number is 81, what is the number? I tried doing 2x^2=81 but that did not come out to the answer 4.5,-4.

Vlada [557]

If the number is n then

square of 2 times a number
square of 2n
(2n)²
that was your mistake, because (2n)²=4n², not 2n²

the result is 81
(2n)²=81
square root both sides
remember positive and negative roots
2n=+/-9
divide by 2
n=+/-4.5

n=4.5 or -4.5

4 0

4 years ago