All categories

3 years ago

PLEASE ANSWER QUICK HELLLPP

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

3 0

7(n+4)= 21
(n+4 )=3
n= -1

You might be interested in

Can you please solve thos type of question (Question 2)

densk [106]

Answer:

I hope it helped I guess we have to combine the like terms❤

3 0

3 years ago

write the equation of the line perpendicular to y= 5/2x+3 that passes through the point (-7,9). Type an answer using slope-inter

omeli [17]

Answer:

5y = -2x + 31

Step-by-step explanation:

Given equation:

y = $\frac{5}{2} x + 3$

Coordinate = (-7,9)

Unknown:

Equation of the line perpendicular = ?

Solution:

The slope - intercept format of a line is given as;

y = mx + c

where y and x are the coordinates

m is the slope

c is the y-intercept

y = $\frac{5}{2} x + 3$

From the given equation; slope is $\frac{5}{2}$

A line perpendicular will have a slope that is negative and the inverse of this;

slope of perpendicular line = $-\frac{2}{5}$

Since y= 9 and x = -7;

So;

9 = $\frac{-2}{5} x (-7)$ + C

9 = $\frac{14}{5}$ + C

C = 9 - $\frac{14}{5}$ = $\frac{31}{5}$

Now,

y = $-\frac{2}{5}$ x + $\frac{31}{5}$

mulitply through by 5;

5y = -2x + 31

3 0

3 years ago

Which is greater 1,341 + 625 + 0 or 1/2 X 1341 + 625

konstantin123 [22]

Answer:

Step-by-step explanation:

We will try both by doing addition :

1341+625+0=1966

and

1/2*1341+625=2591/2=1295.5

As 1966 is greater then 1295.5 so 1341+625+0 is greater then 1/2*1341+625

8 0

3 years ago

Read 2 more answers

Convert 312 quarts to gallons.

dimaraw [331]

78 gallons is the same as 312 quarts

8 0

3 years ago

PLEASE HELP FAST!!! While bisecting a line segment, Kara has just drawn two arcs, one passing through each endpoint. Which of th

GuDViN [60]

Answer:

Kara should plot points where the arcs intersect above and below the line segment.

Step-by-step explanation:

The bisection of a line segment is the dividing of the line segment into two equal parts. To bisect a line segment, you have place your compass on the endpoints and measure a distance greater than half of the segment. The point of intersection of the arcs both above and below the segment is then joined thereby bisecting the line.

Since Kara has already drawn the two arcs which are greater that half of the length, all Kara needs to do is plot points where the arcs intersect above and below the line segment.

8 0

3 years ago