MATHEMATICS HIGH SCHOOL

PLZ HELP ASAP!!! WILL MARK BRAINLIEST!!Select all that apply. Which of the following expressions have a quotient of -1/71/7

(-1)/(-7)

(-1)/7

-(1/7)

1/(-7)

Answers

Answer 1
Answer:

Answer:

it's a,c,d like if this helps
Answer 2
Answer:

Answer:

(-1)/7

1/(-7)

-(1/7)

These two equations will be equal to -1/7 as

(-1)/7=-1/7

1/(-7)=-1/7(THE SIGN OF THE DENOMINATOR WILL BE GIVEN TO THE NUMERATOR IF NEGATIVE)

-(1/7)=-1/7 (When we avoid the bracket the answer will be equalent)

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Solve by substitution. Show each step of your work.

2x + y = 7

3x + 5y = 14

Answers

Alright...simple...showing all steps.. ;)

You have the equations...

2x+y=7
and
3x+5y=14

To be able to even solve for any of the variables...multiply the equations by...2...and..3...

2x+y=7----*3--> 6x+3y=21
and
3x+5y=14-----*2--->6x+10y=28

Thus,

6x+3y=21
-
6x+10y=28

=========

-7y=-7

y=1

Now, plug y back into any of the original equations....we'll use 2x+y=7 in this case....

2x+(1)=7

2x+1=7
      -1  -1

2x=6

x=3

Thus, the point of intersection for these two equations is (3,1)

An angle is formed by the junction of two rays.
a. True
b. False

Answers

The most probable and most likely answer to this problem of true or false would be true.

An angle is formed by the junction of two rays. Usually, when two rays are in junction, two angles are formed. Either the formed angle is an acute angle, obtuse angle, or a right angle. The other angle that comes with the formed angle mentioned earlier would be a reflex angle. When two rays form just a line, the angle formed would be just one which is a complete rotation, thus the angle would be a 360 angle.

Find the three geometric means between 15 and 1215.

Answers

Hello,

g_m(15,1215)=√(5*1215)=9√15≈77,942286340....
====================================

ActivityThe equation y = x + 1 represents plane A and y = -x + 21 represents plane B, where x is the time in minutes and y is the fuel in tons.

Part A
Go to your math tools and open the Graph tool to graph the two sets of equations. To see where the two lines intersect, change the scale so that the x-axis goes from 0 to 30 and the y-axis goes from 0 to 12. Paste a screenshot of the resulting graph in the answer space.



Part B
At which point do the lines intersect?



Part C
Do the coordinates of the point of intersection satisfy both equations simultaneously?

Answers

Answer:

Part-A: refer to the attachment

Part-B: (10,11)

Part-C: yes

step-by-step explanation:

Part-A:

refer to the attachment

(I used a online graphing calculator to graph the equations which made the work easy)

Part-B:

When two lines share exactly one common point, they are called the intersecting lines and thepointis called thepointof interception

Looking at the graph,we can understand that the two lines share a common point at (10,11),

hence,

The lines intercept at the point (10,11)

PartC:

well, to find the answer of this part, we can consider doing equality check by substituting the value of the point we got.

The point (10,11) means that the left and right hand side of both of the equations i.e \text{y=x+1 and y=-x+21} are equal when x and y equal to 10 and 11 respectively.

So let's justify the points:

equation-1:

  • y = x + 1

substitute the value of x and y respectively:

  • 11\stackrel{?}{=}10+1

simplify addition:

  • 11\stackrel{\checkmark}{=}11

equation-2:

  • y = -x + 21

substitute the value of x and y respectively:

  • 11\stackrel{?}{=}-10+21

simplify addition:

  • 11\stackrel{\checkmark}{=}11

so,

Yes,the coordinates of the point of intersection satisfy both equations simultaneously

Answer:

h

Step-by-step explanation:

Find the angle measure to the nearest degree. cos(A) = 0.5878
how do I do this?​

Answers