is -49 a rational number? please explain

Answers

Answer 1
Yes, because a rational number is any number that can be expressed as a fraction a/b where a/b are both integers, but cannot be zero.

Related Questions

Which statements are true about FGH?

Answers

Answer:

tan G = 2.4

Step-by-step explanation:

What is the solution to the equation below?
Vx + 3 = x - 3
A. 3
B. 6
C. 5
D. 4

Answers

Answer:

6

Step 1: Solve Square Root

Vx+3=x-3

x+3=(x-3)^2 (squared both sides)

x+3=x^2-6x+9

x+3-(x^2-6x+9)=0

(-x+1)(x-6)=0 (factor left side of equation)

-x+1=0 or x-6=0

x=1 or x=6

When you plug it in to check

1 (Doesn't Work)

6 (Work)

Therefore, 6 is your solution.

3 m
7 m
10 m
4 m 1 m
d the volume of the entire figure by adding the volumes of the separate

Answers

Answer:

Total Volume = 190 m³

Step-by-step explanation:

Volume of the entire figure = L (Area 1  + Area 2)

where L = 10 m

Area 1 (blue prism) = 4 x 3 = 12 m²

Area 2 (brown prism = 1 x 7 = 7 m²

plugin  values into the formula:

Volume of the entire figure = L (Area 1  + Area 2)

                                            = 10 (12 + 7)

                                            = 120 m³ + 70 m³

                                            = 190 m³

The answer is 190cm ^3

5√2-3√2.


optional maths

Answers

It has to be undefined

Answer:  [tex]2\sqrt{2}[/tex]

=====================================

Explanation:

Let's say we replace every copy of [tex]\sqrt{2}[/tex] with x

Doing so means we have the expression 5x-3x. That simplifies to 2x.

The last thing to do is replace the x with [tex]\sqrt{2}[/tex] and that's how we end up with [tex]2\sqrt{2}[/tex] as the final answer.

----------

In short: we subtract the numbers out front, and then tack on a root 2 at the end.

As another example, [tex]19\sqrt{2}-11\sqrt{2} = (19-11)\sqrt{2} = 8\sqrt{2}[/tex]

This is basically the same as saying 19x-11x = (19-11)x = 8x where [tex]x = \sqrt{2}[/tex]

A square has an area of 176 square inches. What is the length of a side of the square, in inches?

Answers

Happy Pride Month!

Answer:

a≈13.27

Step-by-step explanation:

Context for variables

a= Side legth

A=Area

What points are [tex]\sqrt{45}[/tex] units away from (-3, 1)? Select all that apply.
1. (0,7)
2. (-9,4)
3. (3,-2)
3. (-6,-5)

Answers

The correct answer is (3,-2)

⚠️❗️⚠️❗️⚠️❗️10 POINTS, PLEASE HELP ASAP. I NEED THE ANSWER TO THE PROBLEM ANSWERED BELOW ⚠️❗️⚠️❗️⚠️❗️
What is the area❓ No links or troll answers you’ll be reported

Answers

Answer:

103

Step-by-step explanation:

Find the area of the rectangle on the top

A = 7*13 = 91

Now find the area of the rectangle on the bottom

13 - (5+5) = 3

11-7 = 4

The dimensions of the bottom rectangle are 3 by 4

A = 3*4 = 12

The total area is 91+12 = 103

Can someone help me with this question?

Answers

Answer:

A = 20.25 sq units

Step-by-step explanation:

to find the area of a square you only need to know the measure of one side -- all other sides will be equal to it

it appears the segment is 4.5 units so you would square that to get the area

A = 4.5²

A = 20.25

Consider the quadratic equation 2x² + 72 + k = 0. Which value of k results in the equation having complex solutions?​

Answers

Hi there!

[tex]\large\boxed{k> 6.125}[/tex]

We can use discriminants to determine the value of k for which the equation would have complex solutions. (Those involving i)

If b² - 4ac < 0, then the equation will have complex solutions. Therefore:

Plug in the given values of b and a to solve:

7² - 4(2)(k) < 0

Simplify:

49 - 8k < 0

Solve the inequality:

49 < 8k

6.125 < k

k > 6.125. Anything greater than 6.125 would result in complex solutions.

Please help i need it NOW! NO LINKS!!!!!!
Mark as BRAINLLEST to whoever gets it right

Answers

Answer:

Given b=1.7 and ∠β=39°,

So

x = 2.70133

What is the slope of the line that passes through the points (26, 7) and (-39, 12)?

Answers

Answer:

-1/13

Step-by-step explanation:

The slope of a line is calculated as rise/run.

The rise is the difference in y-values, and the run is the difference in x values

slope= y₂ - y₁/x₂ - x₁

let (26 , 7) be (x , y) and (-39 , 12) be (x₂, y₂)

slope= (12 - 7)/ (-39 -26)

        = 5/-65

reduce the fraction to get -1/13

graph the image of triangle abc after dilation with the scale factor of 3 centered at the origin?

Answers

Answer:

A' = (0,0)

B' = (6,-12)

C' = (-12,-12)

Step-by-step explanation:

According to the Question,

Let's label the corner points of the triangle A,B,C starting at the origin and moving clockwise(ForDiagram Please Find in Attachment)

A = (0,0)  , B = (2,-4)  , C = (-4,-4)

Dilating with a scale factor 3 means we multiply each coordinate of each point by the value 3

A = (0,0) becomes A' = (0,0). No change happens. This point is fixed

B = (2,-4) becomes B' = (6,-12). This point does move

C = (-4,-4) becomes C' = (-12,-12). This moves as well

So all you need to do from here is draw triangle A'B'C'.

Note ⇒

the lengths of triangle A'B'C' are Thrice as long as their counterparts on triangle ABC. Consequently, this means the perimeter of A'B'C' is Thrice as long as the perimeter of ABC. Also, triangle A'B'C's area is Nine times larger than the area of triangle ABC.

When the dragons have lost their most recent game, fans buy 200 tickets. For each consecutive win the dragons have, the number of tickets fans buy increases by a factor of 1.1 Which expression gives then number of tickets fans buy after 4 consecutive wins?

Answers

Answer:

Y(4) = 200(1.1)^4

Step-by-step explanation:

Given that :

Number of tickets purchased before consecutive wins = 200

For each consecutive win, ticket purchased increases by a factor of 1.1

Number of tickets after 4 wins

This scenario describes an exponential relation :

Where increase is factor based and not a certain number :

Hence,

Number of tickets, Y= Initial number of ticket * growth factor^number of wins

Hence, we have

Y(n) = 200(1.1)^n

Y(4) = 200(1.1)^4 = 292.82

factorise
[tex] \frac{x^{2} - 4 }{x^{2} \times 2 } [/tex]

Answers

I am not sure
Good luck

A. B.

C. D.

This is urgent!!!

Answers

Answer:

1/8

Step-by-step explanation:

( 2^-1 / 2^0) ^3

First simplify inside the parentheses

We know that a^b / a^c = a^(b-c)

2^(-1-0) = 2^-1

( 2^-1 ) ^3

Then we know that a power to a power is

a^b^c = a^(b*c)

2^(-1  *3)

2^ -3

Then a negative exponent makes it a fraction

a^ -b = 1/a^b

1 /2^3

1/8

$100 is split with Al, Bob. Cindi and Dina (4 total) Bob gets $4 more than Al. Cindi gets $8 more than Bob Dina gets twice as much as Cindi How much does each person get?​

Answers

Answer:

Al-$12 Bob-$16Cindi-$24 Dina-$ 48

Step-by-step explanation:

Basically

x

x+4

x+12

2(x+12)=2x+2y

x+x+4+x+12+2x+24=100

So yeah.

find the other x-intercept for the parabola defined by this equation y=2x2+3-2​

Answers

Answer:

( [tex]\frac{1}{2}[/tex], 0 )

Step-by-step explanation:

To find the x- intercepts let y = 0, that is

2x² + 3x - 2 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × - 2 = - 4 and sum = + 3

The factors are + 4 and - 1

Use these factors to split the x- term

2x² + 4x - x - 2 = 0 ( factor the first/second and third/fourth terms )

2x(x + 2) - 1 (x + 2) ← factor out (x + 2) from each term

(x + 2)(2x - 1) = 0

Equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

2x - 1 = 0 ⇒ 2x = 1 ⇒ x = [tex]\frac{1}{2}[/tex]

The x- intercepts are (- 2, 0 ), ( [tex]\frac{1}{2}[/tex], 0 )

Helppppppppppppppppppp I’ll mark you brainlist don’t respond if you’re going to put something random I will report you :)

Answers

Y=5/2x-2
Count up 5 and 2 to the left and you bring at -2

Answer:

the slope is 2.5

(from x=0 to x=2 it goes up by 5)

-2 is the intercept with the y-Axis

the general formula is:

y = m*x + b

where m is the slope and b the intercept

here you go:

y = 2.5x -2

pls brainliest

Jimmy earns $500 a week selling shoes. He also earns 8% commission on all of his shoe sales. Last week, he sold $1,540 worth shoes. How much money did Jimmy earn last week?

show work​

Answers

To determine the amount Jimmy made last week, you will need to calculate the commission he made on his sales and add the $500 to that amount.

Here is the math equation showing this:

($1540 x 0.08) + $500 = $623.20

Jimmy made $623.20 last week.

what statement best describes the function below f(x)=x3-x2-9x+9

Answers

Answer:

It is a many-to-one function.

Step-by-step explanation:

would really appreciate the help!:(

Answers

Answer:

b is 285

Step-by-step explanation:

Jayden is going to see a movie and is taking his 3 kids. Each movie ticket costs $12 and there are an assortment of snacks available to purchase for $3 each. How much total money would Jayden have to pay for his family if he were to buy 4 snacks for everybody to share? How much would Jayden have to pay if he bought xx snacks for everybody to share?

Answers

Answer:

$60

Step-by-step explanation:

Which number line best shows how to solve -4-(-8)?
HH+
4 6 8 10
-10 -8 -6 4-2
0
2
+
-10-8-6-4-2
0
2
2
4
6
8 10
+
- 10 -8 -6 -4-2
0
2
4
6
8 10
-10 -8 -6 -4 -2 0 2
4
6
8 10
No

Answers

Answer:

2

Step-by-step explanation:

add them aall up

There are yellow and white counters in a bag in the ratio 4:1

What percentage of the counters are white?

Answers

Answer:

20%

Step-by-step explanation:

ratio=4:1

4+1=5

100% (full)/5=20%

20*4(yellow counters)=80

20*1(white counters)=20

=20%

Histograms are more closely related to stem-and-leaf plots but look
somewhat like bar graphs.
A. True
B. False

Answers

Answer:

true

Step-by-step explanation:

its like a bar graph but joint. theres no space between two consecutive bars

This is : true
………………….

HELP PLSSS

Is this relation a function? Justify your answer.
11
10
2
1
5 6 7 8 9 10 11
O A. No, because two points with the same y-value have different x-
values.
OB. Yes, because every x-value corresponds with a single y-value.
O C. Yes, because every x- and y-value is positive.
O D. Yes, because the number of x-values is the same as the number of
y-values.

Answers

The correct answer would be 2

Helppppppppppppppppppp I’ll you brainlist if you don’t respond if you’re going to put something random I will report you !

Answers

Answer:

x = 0

y = -4

negative 4 cuz the line goes down, meaning it's negative

(1.9)2 standard form

Answers

Answer:

-4

Step-by-step explanation:

hope this helps

have a great day/night :)

I NEED HELP ASAP!!!
A laptop has a listed price of $891.99 before tax. If the sales tax rate is 9.25%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Please explain to me.

Answers

Answer:

$974.50

Step-by-step explanation:

The sales tax is 0.0925($891.99), or $82.51.  We need only add this amount to the listed price ($891.99) to find the total cost with sales tax included:

$891.99

+    82.51

--------------

$974.50

An alternative approach would be to multiply the listed price by 1.0925:

1.0925($891.99) = $974.50

Here the '1' refers to the listed price and the '0.0925' to the sales tax.

Please I have been waiting for an answer. somebody help me I give brainlist

What is the value of x in this figure?

Enter your answer in the box.

Answers

Answer:

x = 114

Step-by-step explanation:

114 and x are vertical angles, therefore they are congruent.

Answer:

Vertical Angles are equal so 114

Step-by-step explanation:

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