Please help I don't understand this

Please Help I Don't Understand This

Answers

Answer 1

Answer:

First equation: No solution

Second Equation: One solution

Third equation: Infinitely many solutions

Step-by-step explanation:

Hope this helped, Have a Great Day!!


Related Questions

When full, the gas tank of a car holds 22 gallons. It now contains 16.5 gallons. What percent represents how full the tank is?

Answers

Answer:

75%

Step-by-step explanation:

16.5/22 = 0.75

0.75 x 100 = 75

∴ 75% of the tank is full.

Convert 1.05 to a percent.

Answers

Answer:

105%

Step-by-step explanation:

you would just move the decimal 2 places to the right

First convert the decimal fraction to a common fraction then multiply the common fraction by a 100 to convert it to a percentage. See full working in the picture below and don’t forget the brainleast if this was helpful :):)

PLEASE HELP!!!!!
a,b,c,or d?!?!?

Answers

Answer:

A

Step-by-step explanation:

MARK BRAINLIEST

Which transformation represents a reflection over the x-axis?
O (X,Y) - (-x, y)
O(x,y) → (X, -y)
O(x, y) (y,x)
(x, y) - (-y, x)

Answers

reflection over the x-axis is (x,y) - (x,-y)
Second choice!! Every time it says it reflects over the x -axis it is actually affecting the y coordinates. If it reflects over the y-axis, it is affecting the x coordinates.

Mr. Ramirez purchased 25 concert tickets for a total of $245. The concert tickets cost $17 for adults and $12 for children under the age of 12.

Answers

Answer:

Step-by-step explanation: Use the variables “a” for adults and “c” for children.

What is the 100th term in the sequence an= 4n-12

Answers

388 is the answer to this equation

The hundredth term of the given sequence is 388.

What is a sequence?

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Given that, we need to find the 100th term in the sequence an= 4n-12,

Put n = 100,

a₁₀₀ = 4 x 100 - 12

= 400 -12

= 388

Hence the hundredth term of the given sequence is 388.

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what is 913 divided by 31

Answers

There is something called a calculator

If ∠BAC ≅ ∠DCA, is ABE ≅ CDE? Explain.

A. Yes; the triangles are congruent by AAS.
B. Yes; the triangles are congruent by ASA.
C. Yes; the triangles are congruent by SAS.
D. No; the triangles are not congruent.

Answers

Answer:

The answer is A.

Step-by-step explanation:

It is A because both sides match up except for the last pair, where they are the same. Hope this helped!

24 dollars for 7 books can you give me the rate and unit plz and thank you love

Answers

Answer:

4 dollars per book

Step-by-step explanation:

Tuition for one year at the University of Houston is about $12,300. Azul plans to attend this university and will save money each month for the next 4 years. His parents have saved $4,860 for his first year of tuition. Which plan shows the amount of money Azul will need to save in order to pay for his first year at the University of Houston?

A. Azul will need to save $1,860 per month for the next 4 years.
B. Azul will need to save $155 per month for the next 4 years.
C. Azul will need to save $620 per month for the next 4 years.
D. Azul will need to save $256.25 per month for the next 4 years

Answers

Answer:

It should be C. 620

Step-by-step explanation:

Using proportions, it is found that Azul will need to save $155 per month for the next 4 years, and the correct option is B.

The total price of one year of tuition is $12,300, while his parents have saved $4,860.

Thus, the amount he has to save for the next 4 years is:

[tex]A = 12300 - 4860 = 7440[/tex]

4 years have 48 months, thus, he has to save $7440 in 48 months, which means that the monthly amount is:

[tex]\frac{7440}{48} = 155[/tex]

And the correct option is:

B. Azul will need to save $155 per month for the next 4 years.

A similar problem is given at https://brainly.com/question/24342347

Explain how to use the distributive property to find the product (3) ( 4 /1 5 )

Answers

Answer:

Reduce the expression, if possible, by cancelling the common factors.

the answer is 4/5 or 0.8 :)

Step-by-step explanation:

Answer:

Sample Response: Rewrite 3 ( 4  1/5) as 3 ( 4 +  1/5 ). Distribute the 3 to get 3(4) + 3 (1 /5 ) . Multiply to get 12 + 3 /5  . Then add to get 12 3 /5 .

Add 1/2 + (-3/4)= show the work

Answers

2/4 - 3/4 = -1/4 hope this helps...

Answer:

2/4 - 3/4 = -1/4

Step-by-step explanation:

2/4 is half

3/4 is a little more than half

2/4-3/4=1/4

Hope this helps!! :D

What is the vertex of the graph of the function below?
y= x2 - 10x + 21
O A. (5,-4)
B. (3,0)
O C. (5,0)
OD. (3,-4)

Answers

Answer:

Step-by-step explanation:

A. (5,-4)

The vertex of the graph of the function is (5,-4).

The answer is option A.

What is a function?

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

To find the vertex of the function y = x² - 10x + 21,

We can use the formula:

x = -b/2a

where a is the coefficient of the x² term, b is the coefficient of the x term, and x is the x-coordinate of the vertex.

In this case,

a = 1 and b = -10, so:

x = -(-10)/(2 x 1) = 5

To find the y-coordinate of the vertex, we can substitute x = 5 into the function:

y = (5)² - 10(5) + 21 = -4

Therefore,

The vertex of the graph of the function is (5,-4).

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Figure LMNO maps to L'M'N'O' by a 125° rotation about point T.

Quadrilateral L M N O is rotated 125 degrees about point T to form quadrilateral L prime M prime N prime O prime.

Which congruency statement is correct?

LMNO ≅ L'M'N'O'
LMNO ≅ O'M'N'L'
ONML ≅ M'O'N'L'
ONML ≅ O'M'N'L'

Answers

Answer:

A= LMNO ≅ L'M'N'O'

Step-by-step explanation:

just did it trust me

A= LMNO ≅ L'M'N'O'. Hope this helps!!


If C is the midpoint of BD, what is the coordinate of point C if point B is at 0?

Answers

Answer:

It depends on where point D is placed so C > 0

Step-by-step explanation:

As i said above

We want to find the coordinate of C given that it is the midpoint of BD.

We know that B is at 0, so we can assume that each letter represents a position on the number line.

Then we can assume that D is located at a number different than zero, let's assume that D is located at the value d.

Then the segment BD goes from 0 to d, so its length is d.

Then the midpoint is at the middle, at d/2 plus the smallest value, 0:

C = d/2 + 0 = d/2

If you want to learn more, you can read:

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Enter the correct answer in the box.
An airplane makes a round-trip supply run that takes a total of 6 hours and is 350 miles each direction. The air current going to the destination is
in the direction of the plane at 20 miles per hour. The air current traveling back to the starting point is against the plane at 20 miles per hour. Let
x represent the speed of the airplane, in mies per hour, when there is no wind.
Replace the values of a, b and c to create the equation that describes this situation.

Answers

Answer:

the anwser is x and it represents 350

Step-by-step explanation:

The speed of the airplane when there is no wind will be 116.67 miles per hour.

What is speed?

The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the speed formula

Speed = Distance/Time

An airplane makes a round-trip supply run that takes a total of 6 hours and is 350 miles in each direction.

The air current going to the destination is in the direction of the plane at 20 miles per hour.

The air current traveling back to the starting point is against the plane at 20 miles per hour.

Let x represent the speed of the airplane, in miles per hour, when there is no wind.

Then the speed of the airplane when there is no wind will be given by the average speed.

Then we have

x = (350 + 350) / 6

x = 700 / 6

x = 116.67 miles per hour

More about the speed link is given below.

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On the last day of school, Davon surveys the students in his class to find out how many absences each had during the school year. The results are shown below.

{15, 0, 10, 1, 4, 4, 7, 6, 9, 9, 13, 11, 6, 5, 3, 8, 4, 3, 10, 17, 11, 4, 4, 3}
Represent these data on the histogram below.

!!!PLEASE HELP!!! To create the histogram, place your cursor over each interval on the x-axis then click and drag the bar up to graph the correct number of students. If you need to change the number of students you placed, click the top of the bar then drag the bar up or down to show the number of students you need. (there are 5 colums and it only goes up to 12)

Answers

Answer:

0-2 = 2. 3-5 = 9. 6-8 = 4. 9-11 = 6 12 & more = 3

solve

log5(2)+log5(x)-log5(x-1)=log5(3)

Answers

Step-by-step explanation:

log5(2)+log5(x)-log5(x-1)=log5(3)

log5(2x) = log5(3)+log5(x-1)

log5(2x) = log5(3Xx-1)

2x = 3x-3

x= 3

6.8x+9.3= -9.4+3.4(2-5x)

Answers

Answer: the answer to this is x=0.5

Step-by-step explanation:

In order to solve this you have to combine the multiplied terms into a single fraction so its going to look like this -   34x/5 + 9.3= -9.4+3.4(2-5x)

The reposition your terms and put together your multiplied terms into a fraction,Once you have that done distribute them

Subtract 9.3 on both sides.you may simplify and then multiply all the terms with the same value to get rid of the denominators from the fractions

also add 85x to both sides then finally divide both side by the same term which get you -59.5/119 and then simplify and you get -0.5

so x= -0.5

Answer:

x=-0.5

Step-by-step explanation:

step 1

6.8x+9.3=-9.4+3.4(2-5x)

6.8x+9.3=-9.4+(3.4)(2)+(3.4)(-5x) distribute

6.8x+9.3=-9.4+6.8+-17x

6.8x+9.3=(-17x)+(-9.4+6.8) combine like terms

6.8x+9.3=-17x+-2.6

6.8x+9.3=-17x-2.6

step 2

add 17x to both sides.

6.8x+9.3+17x=-17x2.6+17x

23.8x+9.3=-2.6

step 3

subtract 9.3 from both sides.

23.8x+9.3-9.3=-2.6-9.3

23.8x=-119

step 4

divide both sides by 23.8

23.8x/23.8= -11.9/23.8

The answer is =-0.5

A textbook costs $65.49 before tax. The tax on the textbook is 6.5% what is the total costs of the textbook

Answers

Answer:

65.49*0.065 = 4.26

Step-by-step explanation:

65.49*0.065 = 4.26

65.49+4.26 = $69.75

Answer:

$69.75

Step-by-step explanation:

65.49x6.5%= 4.26

65.49+4.26= 69.75

Don't forget your label!

Hope this helps!

-AxekickNebulite

I need help on this

Answers

Answer:

,b j,mbnlvj lcv

Step-by-step explanation:

nb ckhbv m

i just want want points sorry! :)

Find the value of x that makes u and v parallel

Answers

Answer:

3

Step-by-step explanation:

equate the two together to get the value of x

i need workings and answer to this question above.​

Answers

Answer:

D.82km/hr

hope it helps

7)
Which is the correct solution for the system?
3y = 6 - 2x
8x = 3y - 1
A)
5
and y =
B)
5
x = 2 and y =
win
C)
2
x = 3 and y =
12 /
UIN
x = 3 and y =
OM

Answers

Answer:

3y = 6 - 2 ( 0 ) take

x zero and find value of y

3y = 6 - 2 ( 0 )

3y = 6 - 0

3y = 6

both sides divide by 3

ans : y = 2

now we can find so the value of x

3y = 6 - 2x

3( 0 ) = 6 - 2x

when we find the value x we take y ( 0 ) zero

3 ( 0 ) = 6 - 2x

0 = 6 - 2x

0 + 6 = - 2x

6 = -2x

both sides divide by -2

ans or value of x is 3

Step-by-step explanation:

first

- find one of the values of x and y

two :

- when you solving this

take y ( 0 ) if you search / find the value of X

The vertex of a parabola is (6,2), and the equation of its directrix is x = 8. What is the equation of this parabola in standard form?

a. (y−2)2=8(x−6)

b. (y−2)2=−8(x−6)

c. (x−6)2=−8(y−2)

d. (x−6)2=8(y−2)

Answers

Answer:

The equation of this parabola in standard form is (y - 2)² = -8(x - 6) ⇒ B

Step-by-step explanation:

Let us revise the standard form of the equation of a parabola

The standard form of the equation is (y - k)² = 4p(x - h), where

(h, k)  is the turning point (h + p, k)  are the coordinates of the focus x = h - p  is the equation of the directrix

∵ The vertex of a parabola is (6, 2)

→ From the fact above

h = 6 and k = 2

∵ The equation of its directrix is x = 8

→ From the fact above

h - p = 8

→ Substitute the value of h to find p

∵ 6 - p = 8

→ Subtract 6 from both sides

∴ - p = 2

→ Multiply both sides by -1

p = -2

→ Substitute the values of h, k, and p in the form above

∴ (y - 2)² = 4(-2)(x - 6)

∴ (y - 2)² = -8(x - 6)

The equation of this parabola in standard form is (y - 2)² = -8(x - 6)

Simplify 3 square root of 512

Answers

Answer:

8

Step-by-step explanation:

not sure if this is what ur looking for sorry

The simplified form of 3√(512) using radical is 48√(2).

To simplify √(512), find the prime factorization of 512.

Prime factorization of 512:

512 = [tex]2^9[/tex]

Now, rewrite the square root as follows:

√(512) = √[tex](2^9)[/tex]

Next, use the property of square roots that states √(a * b) = √(a) * √(b):

√[tex](2^9)[/tex] = √([tex]2^8 * 2)[/tex]

         = √[tex](2^8) * \sqrt(2)[/tex]

Since √[tex](2^8)[/tex] is equal to [tex]2^4[/tex] then

√(512) = [tex]2^4[/tex] * √(2)

Finally, simplify √(2) as it is not a perfect square:

√(512) = [tex]2^4[/tex]* √(2)

          = 16 * √(2)

So, the simplified form is 48√(2).

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10+10 Chloe answer ​

Answers

Answer:

20

Step-by-step explanation:

Kai is looking for his first job as a pharmacy technician. He prepares for the job by memorizing household, metric, and apothecary abbreviations. In addition, he memorizes the methods for converting data between those measurement systems. Perform the following calculation using the ratio and proportion method. How many ounces (oz) are equal to 4 cups?

Answers

Answer:

Step-by-step explanation:

0.5: 4

pLZ NAME MEE THE brainliest thank u

a cow heart beat 325 in 5 minutes. about how many times does a cow's heart beat in 2 minutes?

Answers

Answer:

130

Step-by-step explanation:

You can make a ratio - 325:5, then we can simplify it to 65:1, where we are comparing # of beats in 1 minute. Now, we can just multiply both sides by two, getting us 130:2, which is just 130 beats.

which expression is equivalent to 6-(-8)
○ -6+8
○ -6+(-8)
○ 6+(-8)
○ 6+8​

Answers

Answer: 6 + 8

Step-by-step Explanation: When you're adding and subtracting positives and negatives and you see a minus a negative in a problem, you can change it to plus a positive.

So 6 - (-8) can be thought of as 6 + (+8).

Answer:6+8

Step-by-step explanation:

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