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2 years ago

What is 7/8 times a number. the product is less than 7/8 tho

Mathematics

1 answer:

zzz [600]2 years ago

4 0

Answer:

7/8 x < 7/8

Step-by-step explanation:

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Evaluate the following when x = 3 2x+ 5(x)

Nina [5.8K]

Hi!

I can help you with joy!

Evaluate:

$\fbox{2x+5x}$ when $\fbox{x=3}$

First, add x's:

$\rm{7x}$

Now, plug in the value of x (3)

$\rm{7(3)$

Multiply:`

$\rm{21}$ (Answer)

Hope it helps!

Ask me if you have any doubts.

Enjoy Your Day/Night! :)

Answered by

~Silent~

4 0

2 years ago

Neeeeed helppppppppppp

sineoko [7]

Answer: the answer is below

Step-by-step explanation:

its 4

2.5 i think

4 0

2 years ago

Write an equation of the perpendicular bisector of the segment with the endpoints (8,10) and ( -4,2).

ale4655 [162]

Answer:

The required equation is:

$y = -\frac{3}{2}x+9$

Step-by-step explanation:

To find the equation of a line, the slope and y-intercept is required.

The slope can be found by finding the slope of given line segment. A the perpendicular bisector of a line is perpendicular to the given line, the product of their slopes will be -1 and it will pass through the mid-point of given line segment.

Given points are:

$(x_1,y_1) = (8,10)\\(x_2,y_2) = (-4,2)$

We will find the slope of given line segment first

$m = \frac{y_2-y_1}{x_2-x_1}\\= \frac{2-10}{-4-8}\\=\frac{-8}{-12}\\=\frac{2}{3}$

Let m_1 be the slope of perpendicular bisector then,

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

Now the mid-point

$(x,y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\= (\frac{8-4}{2} , \frac{10+2}{2})\\=(\frac{4}{2}, \frac{12}{2})\\=(2,6)$

We have to find equation of a line with slope -3/2 passing through (2,6)

The equation of line in slope-intercept form is given by:

$y = m_1x+b$

Putting the value of slope

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

Putting the point (2,6) to find the y-intercept

$6 = -\frac{3}{2}(2)+b\\6 = -3+b\\b = 6+3 =9$

The equation is:

$y = -\frac{3}{2}x+9$

7 0

2 years ago

Whats the sum of 3/8 and 1/16 a 1/6 b 4/24 c 7/16 d 1/4

Andreyy89

3/8 + 1/16= 7/16
so it's c. 7/16

6 0

2 years ago

A company has a cost equation of c=0.925x^2-4x+20 and a profit equation of p=-1.125x^2+6x+40. Solve for the breakeven point.

lana66690 [7]

0.925x^2 - 4x + 20 = -1.125x^2 + 6x + 40 (at break even point)

2.05x^2 - 10x - 20 = 0

x = [ - (-10) +/- sqrt(100 - 4*2.05*-20) / (2*2.05)

x = 6.40, -1.52 Ignore the negative

Answer is 6.40

3 0

2 years ago