Mathematics College

How many solutions does the system have? { y = − 7 x + 8 y = − 7 x − 8 ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ y=−7x+8 y=−7x−8 ​

Answers

Answer 1

The system of equations y =−7x + 8  and y = −7x − 8 ​ have no solution

How many solutions does the system have?

From the question, we have the following parameters that can be used in our computation:

y =−7x + 8

y = −7x − 8 ​

Subtracting the two equations

We have

y - y = -7x + 7x + 8 + 8

When the like terms are evaluated, we have

0 = 16

The above equation is false

This means that the equation has no solution

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Related Questions

250 decreased by 35%

Answers

Answer:250, percentage decreased by 35% (percent) of its value = 162.5

Match each statement with the correct reasoning in the proof below given: AM = CM BM=DM

Answers

Answer: I think it’s cm = b, I think your image is very hard to see

Step-by-step explanation:

The given quadrilateral is a parallelogram.

What is a parallelogram?

A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.

The proof is as follows;

          STATEMENTS                                       REASONS

1)  AM = CM and BM = DM                                    Given

2) m ∠ AMB = m ∠ DMC and

m ∠ AMD = m ∠ BMC                          Definition of Vertical angles

3) Δ AMB ≅ Δ DMC and

Δ AMD ≅ Δ BMC                                 By SAS congruency criterion

4) AB = CD and

BC = AD                                                BY CPCTC

5) ABCD is a parallelogram                If both pairs of opposite sides of a                                      

                                                           quadrilateral are congruent then it is    

                                                                           a parallelogram.

Hence, proved, ABCD is a parallelogram.

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What integer does Point B represent?
B
D
0
Point B

Answers

i think it’s -4 but i’m not sure

Answer:

-4

Step-by-step explanation:

uts -4 I mean I don't have any explanation but yea. Tell me if it's wrong

kayla spent 1/6 of her money on clothes. She had $250 remaining. What was the cost of the clothes Kayla bought?

Answers

Answer

$50

Step-by-step explanation:


Can anyone help with expanding this?

Answers

Answer:

log(4) +3 log(x) +7 log(y)

Step-by-step explanation:

Hope it helps!

Answer:

4×6_7482&÷&&÷,geggeve

The perimeter of a triangle whose sides are 4z units, 10 units, and 15 units

Answers

Answer:

29

Step-by-step explanation:

Finding the perimeter consists of adding all sides together. thus 4+10+15=29

The perimeter of a triangle whose sides are 4z units, 10 units, and 15 units,  29 units

What is the perimeter?

Perimeter is a mathematical term, which means total outer boundary of a figure, we define it only for two dimensional figures.

Perimeter = Sum of length of the all the sides

Given that,

The length of sides,

4 units

10 units

15 units

Perimeter = ?

Perimeter  = Total sum of lengths of sides

                 =   4 + 10 + 15

                 =    29 unit

Hence, the perimeter is 29 unit

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what fractional part is black?

Answers

Answer:

Step-by-step explanation:

A =5/8. B=2/4. C=4/10. D= 3/6. Hope this helped!

Rectangle RSTW has diagonals RT and SW that intersect at Z. If RZ=5x+8 and SW=11x−3, find the value of x.(1 point) x=13 x=19 x=116 x=11

Answers

Here’s my answer and the process of how I solved it.

8.7, 8.9, 9.0 is the answer

Answers

Answer: Wait Huh? Please Dm Me or Respond So i Can Help, I Promise (If i Can)

Step-by-step explanation:

if f(2)=4, then f-1(4)= what?

Answers

Answer:

12

Step-by-step explanation:

f = 2

2(2) =4

2-1(4) = 12

-9(x+2)=54 apply the distributive property and simplify ​

Answers

Answer:

x = -8

Step-by-step explanation:

-9 (x+2) = 54

-9x - 18 = 54

-9x = 72

x = -8

Hope this helps :)

Let me know if there are any mistakes!!

Work out 27 ÷ 9 + 9
Work out 4 + 5 x 3
Work out -9 + -4
) Work out 9 - -5

Answers

Answer:

1. 27/9=3+9=12

2. 4+5x3=5x3=15+4=19

3. -9+-4=-13

4. 9--5=14

what is surface area of

​

Answers

Answer:

27.199918 cm2

Step-by-step explanation:

Hope this helps

Find the Area of this Figure

Answers

Answer:

Area = 60 ft ^2

Step-by-step explanation:

first you would have to split the spape given by making a triangle at the top and a rectangle under it, then you find the area of the triangle and rectangle and add those together to find the area.

Triangle:

6 * 4 = 24 / 2 = 12

Rectangle:

12 * 4 = 48

Area:

48 + 12 = 60

What is the value of "2 + 3x" if x = ½? *

Answers

Answer:

3.5 or 3 1/2

Step-by-step explanation:

2 + (3*1/2) = 3.5, which is equal to 3 1/2.

Answer:

Mixed fraction: 3  1/2

Improper fraction: 7/2

Step-by-step explanation:

2+3/2

1  1/2+2= 3  1/2

Reduce the ratio to its lowest form 12:30​

Answers

Answer:

2/5

Step-by-step explanation:

Reduced fraction: 25. So, 12/30 simplified to lowest terms is 2/5.

Hope this helps!


Need help with it today

Answers

Answer:

C

Step-by-step explanation:

s - 7 + 5

s - 2

An item that originally cost $12 was on clearance Alford $3.60 what is the percentage of the discount

Answers

Answer:

she has hdu 7match the inequalities with the graphs

So you would do
3.60 divided by 12 and that would get you 0.3%

Find the measure of angle2

A. 90
B. 50
C. 60
D. 30

Answers

I think it is C. 60.
You can eliminate A because it is not a right angle, and D because the angle is bigger than the given angle. So it is between 50 and 60, and I hope this is right and the picture makes sense

14 gallon of water is used to completely fill 3 fish tanks.if each tank holds the same amount of water,how many gallons will each tank hold?


Answers

Divide 14 by 3 and you get 4.666666666666667, and if you round it’ll be 4.7 or 5 depending on your instructors directions

Evaluate X + y? by replacing x with - 0.5 and y with - 0.25

Answers

-0,5+(-0.25)= -0,75

Answer:

-0.75

Step-by-step explanation:

x = -0.5y = -0.25x + y = (-0.5) + (-0.25) = -0.5 - 0.25 = 0.75

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Three friends at a video arcade win a total of 2,837 tickets. They decide to share the tickets equally. How many tickets will each friend receive?

Answers

Answer:

28373=947

Step-by-step explanation:

You divide 2837 by 3 then your is 947

Find c. Round to the nearest tenth. Laws of sines

Answers

9514 1404 393

Answer:

  c ≈ 56.3 cm

Step-by-step explanation:

I find it convenient to turn the given equations upside down. Then you just need to multiply by sin(C) to get the solution.

  c/sin(C) = b/sin(B)

  c = b·sin(C)/sin(B) = (27 cm)sin(102°)/sin(28°)

  c ≈ (27 cm)(0.978/0.469)

  c ≈ 56.3 cm

Solve this please. (Number 3)

Answers

Answer:23

Step-by-step explanation:

The answer is 23 I hope I helped


Hellppppp........ pleasee

Answers

Answer:

Step-by-step explanation:

The set of points in the 2nd row does not represent a function, because the x-coordinate 2 is associated with more than one y-coordinate.

Functions are one-to-one:  For each x value there is one y value associated.

Help please!
What is the volume of a rectangular prisim with the following dimensions?
Length= 4
Width= 3
Height= 10​

Answers

Answer:

120

Step-by-step explanation:

so volume = l*w*h

= 120

if my answer helps please mark as brainliest.

Answer:

120³

Step-by-step explanation:

Hi!

This is very easy you just need to know the formula for finding the area of a rectangular prism. I attached something to help you with that but I also have an explanation.

The formula to find the area of a rectangular prism is L x W x H,

or in full words Length x Width x Height.

So now lets see what the problem has given us so we can plug things in.

Length = 4

Width = 3

Height = 10

Wow, it gives us all of it!

So now we just have to plug these numbers into the equation and solve.

So :

Length x Width x Height

   4       x     3    x     10

Now we solve it :

4 x 3 = 12

And then we take 12 and multiply it by the last 10 in the equation.

12 x 10 = 120

And that is your answer, the volume of the rectangular prism!

Make sure to add a ³ after the 120 like so :

120³

This tiny 3 represents volume in math since the shape is 3D.

And if there are units of measurement involved like feet or inches make sure to put that in there as well like so :

120 feet³

I hope this helps!

If you have any questions or concerns please comment or feel free to message me! :)

Please change the mixed number into a improper fraction: 1. 7 and 5/16= *

helpp
A- 120/16
B-117/16

Answers

Answer:

117/16

Step-by-step explanation:

7 * 16 = 112

112+5 = 117

Davita can jog 2,000 feet in 4 mins. If she jogs at the same rate, how many feet can she jog in 8 mins?

2,000 ft.
3,000 ft.
4,000 ft.

Answers

The answer is 4,000 ft. Hope it helped you out

Hurt just hurry and answer please

Answers

Answer:

84

Step-by-step explanation:

Solve:

6*7= 42

42*2.00=84

Hope this helps!

What is the complement of a 89° angle?

Answers

Answer:

the supplement of 89° is the angle that when added to 89° forms a straight angle (180° )

Step-by-step explanation:

hope this helps have a good rest of your night/day :) ❤

The complementary angle of 89° is 1°. Complementary angles are angles pairs that if are added will equal 90°.
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