how to tell if a equation has one solution, no solution, or an infinite number of solutions

Answers

Answer 1

Answer:

no solution

Step-by-step explanation:

Answer 2

Answer:

If the slope is different - always one solution

if the slope is the same but the y intercept is different - no solution

if the slope and y intercept are the same - infinite number of solutions


Related Questions

Which symbol correctly compares the fractions below?
1/8 ? 1/2

Answers

Answer:

<

Step-by-step explanation:

1/2 = 4/8

=> 1/8 < 4/8

=> 1/8 < 1/2

Question 2
The value of y is directly proportional to
the value of x. If y = 35 when x = 140,
what is the value of y when x = 70?
A) 70
B) 280
C) 140
D) 17.5

Answers

the correct answer is choice d because you would divide x by 2 to get 70. then you do the same with y so 35/2 = 17.5

ANSWERS ASAP PLEASE Questions 1-4, WILL GIVE BRAINLIEST

Answers

Answer:

1) 23^a+b

2) 5^5

3) 11^x-y

4) 2^10

Step-by-step explanation:

if they have the same base numbers then they are pretty easy to combine. multiplication means you add the exponents, and division means you subtract the exponents. for number 2, you would make them the same base by making 25 -> 5^2 and then just add the exponents.

How many constants are in the word IMPOSSIBLE

Answers

Answer:

6

Step-by-step explanation:

HELP MEEEEEEEEE I REALLY DONT KNOW THIS ONE

Answers

Answer:

[tex]volume = \pi {r}^{2} h \\ = \pi( {5}^{2} ) \times 6 \\ 150\pi \: cubic \: units[/tex]

Answer:

471

Step-by-step explanation:

Using Pi=3.14

First find the area of the bottom circle:

3.14*([tex]5^{2}[/tex])

=78.5

Then multiply the result by the height

78.5*6=471

therefore,

Volume of clylinder: 471 units squared

Please give me brainliest if corrrect :)

pls help help help help help help ​

Answers

Answer:

y=3x+6

Step-by-step explanation:

its in y=mx+b form

m is the slope

b is the y-int

y=3x+6


hope this helps

please help meee and show all steps please!!!ty

Answers

Answer:

x = -4 and x = 5

Step-by-step explanation:

Since [tex]x^2 + 2x[/tex] and [tex]3x + 20[/tex] both equal to y, we know that the expressions equal to each other. We can write a new equation base on that.

[tex]x^2 + 2x = 3x + 20[/tex]

Now we solve the equation.

[tex]x^2 + 2x = 3x + 20[/tex]

[tex]x^2 - x = 20[/tex]

[tex]x^2 - x - 20 = 0[/tex]

[tex](x + 4) (x - 5) = 0[/tex]

[tex]x + 4 = 0 ; x -5 = 0[/tex]

[tex]x = -4 ; x = 5[/tex]

“ write all your answers with a positive exponent so your answer will be in the form of x^# or 1/(x^#)

Answers

Answer:

Step-by-step explanation:

5). [tex]\frac{1}{x^{-9}}[/tex] = [tex]\frac{1}{\frac{1}{x^9} }[/tex]

     = [tex]x^{9}[/tex]

6). [tex]\frac{1}{x^{-2}}=\frac{1}{\frac{1}{x^2} }[/tex]

      = x²

7). [tex]x^{-6}=\frac{1}{x^6}[/tex]

8). [tex]\frac{1}{x^{-7}}=\frac{1}{\frac{1}{x^7} }[/tex]

           = [tex]x^{7}[/tex]

9). [tex]x^{-8}=\frac{1}{x^8}[/tex]

10). [tex]\frac{1}{x^{-3}}[/tex] = [tex]\frac{1}{\frac{1}{x^{3}}}[/tex]

            = x³

What is the solution to the system of equations below? Please show work.

Y = 3/4x - 3
3x - 4y = 12

1) (4,0)
2) (0,-3)
3) no solution
4) infinite solution

Answers

Answer:

2)     (0,-3)

Step-by-step explanation:

hello :

put x=0 and y= -3 in this system !

Y = 3/4x - 3

3x - 4y = 12

- 3 = 3/4(0) - 3  means : -3 = -3 ......true

3(0) - 4(-3) = 12  means : 12= 12 ......true

Given the equation y = -3x + 2:

When x is 1, what value of y makes the equation true?



When x is -1, what value of y makes the equation true?



When x is 8, what value of y makes the equation true?

Answers

When x is 1, the y value would have to be -1

When x is -1, the y value would have to be 5.

When x is 8, the y value would have to be -22

# 1 - Need Help With This

Answers

Answer:

b & f

Step-by-step explanation:

I'm smart and it's common sense

150 people attend a play 45 of them are male write the ratio to males to females in its simplest form

Answers

Answer:

9/21

Step-by-step explanation:

45 / 105 = 9/21 (simplified)

Ben says he will sell Catalina a ring that he found in his yard. Ben and Catalina look at the ring and decide that they are not sure what it is, probably just a shiny stone. Catalina pays Ben $10 for the ring. The ring turns out to be a diamond worth much more than $10. Ben wants the ring back, and Catalina refuses. What is the most likely result

Answers

Answer:

If both parties are over the age of 18, a lawsuit is likely to occur.

Step-by-step explanation:

Ben would likely try and sue Catalina for theft, however she wouldn't be found guilty because of the transfer of property, goods, and or services was entirely legal in this case.

Draw root 9 on a number line​

Answers

Answer:

Step-by-step explanation:

root 9 looks like

[tex]\sqrt{9}[/tex]

maybe you can solve it now?

3*3 = 9

so root 9 = 3

mark 3 on the number line

STUDENT HOURS KATY 5.5
MIKE 4.25
SAM 7.75
HOLLY 3.5
JAKE 6.25
You've randomly surveyed some students in your science class to find the number of hours per week they study. What is the mean, based on your sample?
A) 4.75 Hours
B) 5.05 Hours
C) 5.25 Hours
D) 5.45 Hours

Answers

The best answer to go with is b

Ben rolls a number cube 50 times. He records the result of each roll in the table below. Based on the data, which statement is true?

Answers

Answer:

Ben will roll an even number about 560 times if the number cube is rolled 1,000 times.

help me for brainiest:(

Answers

Answer:

27 ft²

Step-by-step explanation:

area is L•W so each squares area is 3•3 =9. theres 3 squares so 9•3 =27

Here is a list of numbers.

5 15 30 50 60 90 100 125

From the numbers in the list, write down a multiple of 20.

Answers

60! 20 times 3 is 60

explain how you would apply the distributed property to solve the expression 3 (6x+7-4y

Answers

Answer:

I would do the math

evaluate 2x + 5 - 10 when x = 12

Answers

The answer is 19=
2 (12)+5-10= 24+5-10=19

LEARNING TASK 3:

Directions: Given that b ∥ c with d as

transversal. Find the value of x in the

following.





1. ∠4 = 5x, ∠5 = 120°

2. ∠1 = 100°, ∠7 = 10x

3. ∠2 = 3x - 10, ∠6= x + 30

4. ∠4 = 3x + 10, ∠6= 2x + 20

5. ∠1 = 7x + 9, ∠5 = 5x + 31

Plssss I need this now​

Answers

Step-by-step explanation:

1. Angle 5 = 120 degree

Angle 5 = Angle 6 ( alternate exterior angles are equal )

Therfore, Angle 6 = 120 degree

Angle 6 = Angle 4 ( Vertically opposite angles are equal )

Therfore, Angle 4 = 120 degree

Angle 4 = 5x

120 = 5x

120/5 = x

40 = x

Therefore x = 40 degree.

2. Angle 1 = 100 degree

Angle 1 = Angle 7 ( vertically opposite angles are equal )

Therefore, Angle 7 = 100 degree

Angle 7 = 10x

100 = 10x

100/10 = x

10 = x

Therefore x = 10 degree

I want some more time for this question.

What two numbers have a product of -40 and a sum of -3?

Answers

-8 and 5: -8 x 5 = -40; -8 + 5 = -3

Substitute t = 3 and t = 6 to determine if the two expressions are equivalent.

3 (2 t + 5) 6 t + 15

Which statements are true? Select the three correct answers.
A. The value of both expressions when t = 3 is 33.
B. The value of both expressions when t = 3 is 23.
C. The value of both expressions when t = 6 is 41.
D. The value of both expressions when t = 6 is 51.
E. The two expressions are equivalent.
F. The two expressions are not equivalent.

Answers

Answer:

A.The value of both expressions when t=3 is 33.

D.The value of both expressions when t=6 is 51.

E.The two expressions are equivalent.

Step-by-step explanation:

We are given two expressions.

3(2t + 5)

6t + 15

Now let's find the value of these two expressions when t =3 and t = 6

When t =3, the value of the expressions:

3(2*3 + 5) = 3(6 + 5) = 3(11) = 33

6*3 + 15 = 18 + 15 = 33

So the value of both the expressions is 33 when t = 33.

When t = 6, the value of the expressions:

3(2*6 + 5) = 3(12 + 5) = 3(17) = 51

6*6 + 15 = 36 + 15 = 51

The value of both the expressions is 51 when t = 51.

So the following statements are true:

A.The value of both expressions when t=3 is 33.

D.The value of both expressions when t=6 is 51.

E.The two expressions are equivalent.

Giving brainlist to whoever answers

Answers

Answer:

bro check my explanation

Step-by-step explanation:

the answer is 62cm3.

if I am right.

please give a brainliest

Which pair of triangles can be proved congruent by SSS?

Answers

Answer:

My answer is B and C

Step-by-step explanation:

If you put B in the same dimension, all the sides are equal. Similarly for part C, since the sides are the same, the base of the triangles are the same lengtg

can someone help me answer this

Answers

Answer:

(x+7)(x-13) so B is the answer

Answer:

B (x+7(x-13)

Step-by-step explanation:

11) Prove quadrilateral ABCD is a parallelogram A(-2, 8), B(2, 7), C(5, 1), and D(1, 2) *

Answers

9514 1404 393

Explanation:

The quadrilateral will be a parallelogram if the diagonals bisect each other. That is, their midpoints are the same point. We don't actually need to calculate the midpoint. Rather, we can calculate the point that has double the coordinate values.

If (A+C) = (B+D), the quadrilateral is a parallelogram.

  A +C = B +D

  (-2, 8) +(5, 1) = (2, 7) +(1, 2)

  (-2+5, 8+1) = (2+1, 7+2)

  (3, 9) = (3, 9) . . . . . the figure is a parallelogram

_____

Of course, the midpoint of the diagonals is (3/2, 9/2).

solve the inequality -2(y+4)>16

Answers

y < -12

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

−2y − 8 > 16

Step 2: Add 8 to both sides.

−2y − 8 + 8 > 16 + 8

−2y > 24

Step 3: Divide both sides by -2.

−2y/−2 > 24/−2

y < −12

Answer:

y < −12

Step-by-step explanation:

                                                     −2(y + 4) > 16      

                                                               ↓

                                                      −2y − 8 > 16

                                                               ↓

                                                          y < −12

Evaluate function expression.
who can help ?

Answers

Given:

The graph of two function f(x) and g(x).

The expression is:

[tex]-1\cdot f(-8)-4\cdot g(4)[/tex]

To find:

The value of the given expression.

Solution:

From the given graph, it is clear that

[tex]f(-8)=-5[/tex]

[tex]g(4)=3[/tex]

Substitution [tex]f(-8)=-5[/tex] and [tex]g(4)=3[/tex] in the given expression, we get

[tex]-1\cdot (-5)-4\cdot 3[/tex]

[tex]=5-12[/tex]

[tex]=-7[/tex]

Therefore, the value of the given expression is -7.

Chris deposited $445 in a simple interest account at his school's bank, where
the rate of interest is 3.4% per year. What is the balance he withdraws at the
end of two years?
a. $475.26
b. $575.26
c. $425.26
d. $375.26

Answers

Answer:

its a. 475.26

Step-by-step explanation:

445/ 100= 4.45

4.45×3.4=15.13

15.13+445=460.13

460.13+15.13= 475.26

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