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2 years ago

Round 8.47285 to 3 decimal places

Mathematics

1 answer:

Elanso [62]2 years ago

7 0

8.473 is the correct answer

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Find the distance between-10,-13 and 20,-13

Ray Of Light [21]

Answer:

the distance between these 2 would be 30 units

Step-by-step explanation:

Lets ignore the -13 for now because it doesn't have anything to do with the question

Now simply just add 10+ 20 (i took out the negative because it doesn;t make sense)

10+20

=30

plz brainliest :'D

4 0

3 years ago

Tan(tan^-1(sqrt(3)/2))

nordsb [41]

Sorry i don't know. i tried. Can you try and help me?

3 0

3 years ago

Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 What is the solution?

Bogdan [553]

Answer:

$x=\frac{-9}{7}$

$y=\frac{-17}{7}$

Step-by-step explanation:

We have been given the equation:

$3x-2y-1=0$

And $y=5x+4$

Second equation can be rewritten as:

$5x-y=-4$

We will solve the equations:

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

$5x-y=-4$ (2)

Multiply equation (1) by 5 and equation (2) by 3 we get:

$15x-10y=5$ (3)

$15x-3y=-12$ (4)

Now, subtract (4) from (3) we get:

$-7y=17$

$y=\frac{-17}{7}$

Now substitute $y=\frac{-17}{7}$ in equation (1) we get:

$3x-2{\frac{-17}{7}}=1$

$3x+\frac{34}{7}=1$

$21x=-27$

$x=\frac[-27}{21}$

$x=\frac{-9}{7}$

3 0

2 years ago

Read 2 more answers

Pllllllease help me asap

marishachu [46]

Answer & Step-by-step explanation:

When we see the phrase "rate of change" then it means that we are looking for the slope. So, we will need to know the formula for finding slope or the rate of change.

$slope=\frac{y_2-y_1}{x_2-x_1}$

Now, let's use this equation to solve for the rate of change of each question.

Problem 1:

$Slope=\frac{2-\frac{4}{3}}{0-(-1)}\\\\Slope=\frac{\frac{2}{3}}{1}\\\\Slope=\frac{2}{3}$

The rate of change of this equation is 2/3

Problem 2:

$Slope=\frac{4-2}{1-0}\\\\Slope=\frac{2}{1}\\\\Slope=2$

The rate of change for this equation is 2

Problem 3:

$Slope=\frac{10-4}{2-1}\\\\Slope=\frac{6}{1}\\\\Slope=6$

The rate of change for this equation is 6

4 0

3 years ago

What is the x-intercept? 2x-6y= 18

Wittaler [7]

The x-intercept is (9,0). Hope it help!

6 0

3 years ago