All categories

4 years ago

Subtract the following military times: 0545 − 0058 please help me i have so much trouble with this

2 answers:

5 0

The answer is 0447

If you take the five hours and convert that into minutes (multiplying it by 60) and work with that first, it makes it much more simple to solve.

omeli [17]4 years ago

4 0

I think the answer to this it is 713

You might be interested in

The cover of the book is 28 centimeters long and 18 centimeters wide.what is the perimeter of the book cover

d1i1m1o1n [39]

Answer:

the perimeter of the book cover is 504

Step-by-step explanation:

7 0

4 years ago

Write an equation of the perpendicular bisector of the segment with endpoints Q(−2,0)

olga nikolaevna [1]

The equation of perpendicular bisector of QR is:

$y = -\frac{2}{3}x+\frac{22}{3}$

Step-by-step explanation:

Given points are:

$Q(-2,0)\ and\ R(6,12)$

First of all, we have to find the slope of the given line

So,

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

Here

(x1,y1) = (-2,0)

(x2,y2) = (6,12)

Let m1 be the slope of QR:

Then

$m_1 = \frac{12-0}{6+2}\\= \frac{12}{8}\\= \frac{3}{2}$

Let m2 be the slope of perpendicular bisector

We know that the product of slopes of two perpendicular lines is -1

$m_1.m_2 = -1\\\frac{3}{2}.m_2 = -1\\m_2 = -1 * \frac{2}{3}\\m_2 = -\frac{2}{3}$

The bisector will pass through the mid-point of QR

$M = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\M = (\frac{-2+6}{2}, \frac{0+12}{2})\\M = (\frac{4}{2}, \frac{12}{2})\\M = (2,6)$

Slope-intercept form of equation is:

$y = m_2x+b$

Putting the value of slope

$y = -\frac{2}{3}x+b$

Putting (2,6) in the equation

$6 = -\frac{2}{3}(2)+b\\6 = -\frac{4}{3}+b\\b = 6+\frac{4}{3}\\b = \frac{18+4}{3}\\b = \frac{22}{3}$

So,

$y = -\frac{2}{3}x+\frac{22}{3}$

Hence,

The equation of perpendicular bisector of QR is:

$y = -\frac{2}{3}x+\frac{22}{3}$

Keywords: Mid-point, equation of line

Learn more about equation of line at:

#LearnwithBrainly

3 0

3 years ago

Solve the quadratic equation by completing the square. 3x2 - 6x - 4 = 0

lakkis [162]

Answer:

The solutions are

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

$x=1-\sqrt{\frac{7}{3}}$

Step-by-step explanation:

we have

$3x^{2}-6x-4=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2}-6x=4$

Factor the leading coefficient

$3(x^{2}-2x)=4$

Complete the square. Remember to balance the equation by adding the same constants to each side

$3(x^{2}-2x+1)=4+3$

$3(x^{2}-2x+1)=7$

Rewrite as perfect squares

$3(x-1)^{2}=7$

$(x-1)^{2}=\frac{7}{3}$

square root both sides

$x-1=(+/-)\sqrt{\frac{7}{3}}$

$x=1(+/-)\sqrt{\frac{7}{3}}$

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

$x=1-\sqrt{\frac{7}{3}}$

4 0

3 years ago

A rectangle with an area of 47 m² is dilated by a factor of 7. What is the area of the dilated rectangle?

MA_775_DIABLO [31]

We already know that the area of the rectangle increased by a square of the factor 7. So the dilated area of it (which we will call "Ad"), is:

Ad= (47)(7^2)
Ad= 47x49
Ad= 2303 m^2

What is the area of the dilated rectangle? The area of the dilated rectangle is 2303 m^2.

8 0

4 years ago

Six girls and four boys have entered the science fair. First, second, and third place awards are to be given out.

Harman [31]

Answer:

10% on e2020

Step-by-step explanation:

i took the test

5 0

3 years ago

Read 2 more answers