What is the domain of 3x^2-x-2

Answers

Answer 1

Answer:

All real numbers

Step-by-step explanation:

There is no real number that makes the expression undefined, therefore the domain would be all real numbers.


Related Questions

I WILL GIVE YOU BRAINLIEST


Exponent: The number used to indicate how many times the base is a ___________________.

Answers

Answer:

An expression that represents repeated multiplication of the same factor is called a power. The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor.

PLS HELP FOR BRAINLIEST JUST PUT THE LETTER

Answers

Answer:

10.) A

11.) D

12.) B

13.) C

Step-by-step explanation:



A basketball team scored a total of 1470 points over the course of its 21-game season. 470 of the points were from 1-point baskets. The remaining points were either 2-point or3-point baskets.
There were 440 2-point or 3-point
baskets scored. How many of those 440 baskets were 3-point baskets?

Answers

To solve this you'll want to set up a system of equations.

Since there were 1470 points scored total, and 470 of them were from 1 point baskets, that means 1470-470 = 1000 points were scored by 2 and 3 point baskets. Assuming x = the number of 2 point baskets scored and y = the number of 3 point baskets scored, that gives us an equation of 2x + 3y = 1000.

We also know that there were a total of 440 2 or 3 point baskets scored. Using x and y as defined before, we get an equation of x + y = 440.

To solve this, we can use substitution. Let's solve for x in terms of y for the second equation.

So x + y = 440. If we subtract y from both sides, we get x = 440 - y. Now we substitute 440 - y for x in the first equation.

2*(440-y) + 3y = 1000. Now we simply solve the equation.
880 - 2y + 3y = 1000.
880 + y = 1000.
y = 120.

So 120 of the baskets scored were 3 point baskets.

If we want to solve for x, we can substitute in the known value of y to the first equation
x + 120 = 440.
x = 320.

So 320 of the baskets scored were 2 point baskets.


The average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents. Which linear equation models the increase of the price of a loaf of bread? (Let x represent the number of years since 1900.)

Answers

1950:12

1990:70

70-12:58

58/40:1.45

1.45x40 :58

cada año le sumaban 1.45 a la barrita de cereal

saben que no me hagan caso ni yo se que acabo de hacer xd

Thus, the linear equation models the increase in the price of a loaf of bread will be 50x+12=70.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that, the average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents.

(Let x represent the number of years since 1900.)

The linear equation models the increase in the price of a loaf of bread will be.

y = bx + +c

70 = 50x + 12

The linear equation models the increase in the price of a loaf of bread will be 50x+12=70.

Learn more about the linear equation here:

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what is 2+x/5+x=7/8?

Answers

Answer:

x = - [tex]\frac{15}{16}[/tex]

Step-by-step explanation:

2 + [tex]\frac{x}{5}[/tex] + x = [tex]\frac{7}{8}[/tex]

Multiply through by 40 ( the LCM of 5 and 8 ) to clear the fractions

80 + 8x + 40x = 35

48x + 80 = 35 ( subtract 80 from both sides )

48x = - 45 ( divide both sides by 48 )

x = - [tex]\frac{45}{48}[/tex] = - [tex]\frac{15}{16}[/tex]

Antonia bought a set of dishes, a towel, and a candle at a housewares store. The set of dishes cost $35.02, the towel cost $21.43, and the candle cost $9.59 before any coupons or discounts.

She used a $0.50-off coupon on the candle, a $2.75-off coupon on the towel, and the set of dishes was on sale for 10% off the regular price. Which of the following best describes the amounts that Antonia saved?

Answers

Answer:

Antonia saved $5.39

Step-by-step explanation:

Candle:

$9.59 - $0.50 (coupon) = $9.09

Towel:

$21.43 - $2.75 (coupon) = $18.68

Dishes:

$21.43 x 10% = 2.143

$21.43 - $2.143 = $19.287, rounded to the nearest cent and it’s $19.29.

Calculate the amount of money saved by adding 0.50 + 2.75 + 2.143, which is 5.393. Round to the nearest cent and it will be $5.39.

PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!

Answers

Answer:

This would be A.

Step-by-step explanation:

Because

12[tex]b^{2}[/tex] - 6[tex]b^{2}[/tex] = 6[tex]b^{2}[/tex]

-3b - 3b = -6b

0 + ( -2 ) = -2

6[tex]b^{2}[/tex] - 6b - 2

Hope this helps!

javier went to cvs to buy bags of candy for his friends for halloween. he bought three more bags of reese's than lollipops and two fewer bags of starburst than lollipops. bags of lollipops cost $3.75 each, bags of reese's cost $5.50 each and bags of starburst cost $4.25 each. He spend a total of $48.50 and was not charged any tax. How many bags of lollipops did javier bought?

Answers

1.99 because chips is water and we gonna die ok cool

The number of bags bought by Javier will be 2.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Javier bought three more bags of Reese's than lollipops and two fewer bags of starburst than lollipops. bags of lollipops cost $3.75 each, bags of Reese's cost $5.50 each, and bags of starburst cost $4.25 each. He spends a total of $48.50.

From the equations and solve them to get the number of lollypops.

R = L+3

L = S - 2

The equation for total cost will be,

3.75L + 5.5R + 4.25S = 48.5

3.75( s - 2) + 5.5( S + 1) + 4.25S

3.75S - 7.5 + 5.50S + 5.5 + 4.25 S = 48.5

13.5S = 48.5 + 2

13.5S = 50.2

S = 4

The number of lollypops will be,

L = S - 2

L = 4 - 2

L = 2

Therefore, the number of bags bought by Javier will be 2.

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There are 30 tickets numbered as 1, 2, 3, 4, 30 respectively. One random. What is the probability that the number on the ticket is a multiple 2 or 3​

Answers

Answer:

2/3 or 66.66%

Step-by-step explanation:

Out of 30 numbers, half is multiple of 2 and the third is multiple of 3.

We have 15 even numbers and 10 multiples of 3. Out of 10, half is even numbers and  therefore counted twice.

So we subtract 5 to get:

15 + 10 - 5 = 20 numbers

If we chose one ticket at random the probability is:

P(2x or 3x) = 20/30 = 2/3 or 66.66%

A camera costs 115 Canadian dollars. If each Canadian dollar is worth 0.952 US dollars, how much will the camera cost in US dollars?

Answers

Answer:

$109.48

Step-by-step explanation:

If you multiply 115 by 0.952, it will give you the answer which it $109.48 !

Answer:

109.48

Step-by-step explanation:

you have to multiply

.952 × 115


If a b=0&ab, had the value of a
7*4
4*2
(7*4*)*2
2*(7*4)
(4*2)*7

Answers

Hrsxhjmmgr ngsfnsrhsjtdoyfkyftajtstidjt

Answer:

5/6

Step-by-step explanation:

Please solve the math problem for me... I will mark you brainliest

Answers

Answer
18x+6=78
2x+4=12

Helpppp PLZZZZZZZZZZZZ and thank you

Answers

Answer:

1. a- rate is 3

b. 25 sec

c. 150 meters

d. d= 3/t

2. Roxanna

a. Jose 35

Marie 49

Melanie 63

Angle c is congruent to which angles?
A. 1 and 2
B. 2 and 3
C. 3 and 4
D. 1 and 4

Answers

Answer:

2, 3

Step-by-step explanation:

2 and 3
because alternate interior and corresponding angles

Cuanto es (3/5) x(2/3)?

Answers

The answer is 2/5 (fraction form)

3 ( 4 x - 5 ) = 3 (2 - x)

Answers

3 ( 4 x - 5 ) = 3 (2 - x)

3•( 4•x - 5 ) = 3•(2 - x)

15x = 21

x = 7/5 = 1.4

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $28 monthly fee and charges an additional
50.08 for each minute of calls. The second plan has a $19 monthly fee and charges an additional $0.13 for each minute of calls. For how many minutes of calls
w the costs of the two plans be equal?

Answers

Answer:

180 minutes

Step-by-step explanation:

Let x be the number of minutes of calls.

The first plan has a $28 monthly fee and charges an additional $0.08 for each minute of calls:

p(f) = 0.08x + 28

The second plan has a $19 monthly fee and charges an additional $0.13 for each minute of calls:

p(s) = 0.13x + 19

When p(f) = p(s) we get the following equation for x:

0.08x + 28 = 0.13x + 190.13x - 0.08x = 28 - 190.05x = 9x = 9/0.05x = 180

Please help me to solve this question as soon as possible​

Answers

Answer:

set of M is {r,s,t}...........

State the equation of the line described.
A line passes through the point (-2,8) and is perpendicular to the line y = -3x + 3.


thank you guys!

Answers

Answer:

y = mx + b

Since it is perpendicular to the given line, its slope is the negative reciprocal of the slope of the given line.

Slope of given line:

m0 = -a/b = -(-3) / (1) = 3

Slope of perpendicular line:

m = -1/3

y = (-1/3)x + b

Use the given point to find b.

2 = (-1/3)(3) + b

2 = -1 + b

b = 3

y = (-1/3)x + 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Perpendicular lines have their slope negative reciprocal

y= -3x +3 has the slope -3

y = (1/3)x +b is the line that is ⊥ so it has the slope (1/3)

The line passes trough the point (x=-2, y=8) so substitute the x and y to find b

8 = (1/3)(-2) +b, multiply (1/3)(-2) = -2/3 and add 2/3 on both sides

8+(2/3) = b, find the common denominator and add the fractions

[(3*8)+2 ]/3 =b

(26/3)  = b

The equation of the line described is y= (1/3)x +(26/3)

Can someone explain this to me pls

Answers

Answer:

sory i cant explain but tell anser c

Step-by-step explanation:

Does the point (4, -4) satisfy the equation y = -x?
yes
no

Answers

Answer:

noo

because we know that (x,y) is the situation

nd the solution in yr question here y is( -)

hope it helps

Answer:

no

Step-by-step explanation:

( x, y ) = ( 4, - 4 )

Here,

x = 4

y = - 4

y ≠ - x

There are 6 triangles and 5 squares.
What is the ratio of squares to
triangles?

Answers

Answer:

5:6

Step-by-step explanation:

Ratio means proportions.

There are many rules of it

[tex]\\ \sf\longmapsto a:b::c:d[/tex]

[tex]\\ \sf\longmapsto \dfrac{a}{b}=\dfrac{c}{d}[/tex]

[tex]\\ \sf\longmapsto ad=bc[/tex]

If a delivery truck drives 150 miles in 6 hours and maintains that rate of speed,
what is the unit rate for miles per hour?

Answers

Answer: 25 miles per hour

Step-by-step explanation:

Speed=Distance/Time

The distance is 150, and the time is 6. So, all we need to do is divide 150 by 6, and we get 25 miles per hour. Hope this helped!

Answer:

Step-by-step explanation:

r = d/t

d = 150 miles

t = 6 hours

r = 150 / 6

r = 25 miles / hour

what property do you use first in an algibra expretion

Answers

Answer:

BIDMAS

Step-by-step explanation:

In order to solve equations correctly, we use BIDMAS ( Brackets, Indices, Division, Multiplication, Addition and Subtraction).

For example, if we have 5+2x7, we would multiply 2 by 7 first, then add 5 to the value.

Step 2 y = ___ x + 4 What do you divide to both sides of Step 1 to get this result in step 2?
_____________________________________________
Is the Step 2 equation now in slope intercept form? [yes or no] ______
The slope of the line is ________

I will give branliest, thanks so much.

Answers

Answer:

divide both sides by 2

yes, it is in slope intercept form.

the slope is 1/2

[tex]2y=x+4[/tex]

Divide by 2

[tex]2y/2 = x/2 + 4/2[/tex]

[tex]y=\frac{1}{2} x +4[/tex]

The equation is now in intercept form

The slope of the line is [tex]\frac{1}{2}[/tex]

Write 50 as a product of three primes

Answers

Answer: 2*5*5

Step-by-step explanation:

2*5=1-*5=50

2 and 5 are prime numbers.

working simustainle 4 fudge machines finish a big job in 32 hours how long would it take if it had 4 times as more machines

Answers

Answer:

8 hours

Explanation:

32÷4=8

It takes 4 machines to do something in 32 hours. If you had 4 times more machines it would be 4 times faster.

Please answer it correctly I need it now​

Answers

Answer:

[tex]5 \\ 2 \div 4 = 2 \\ 2 \div 6 = 3 \\ 2 \div 8 = 4. \\ {2}^{2} [/tex]

Answer:

number 1=2,2

number 2=5,2,3

number 3=2,3,4

number 4=3,6,11

number 5=5,4

Step-by-step explanation:

Number 1 explanation= this is LCM so first LCM blank box to devided is 2 and 2nd box also 2.

Find 85% of the volume of a cube of side 12cm.

Answers

Answer:

10.2

Step-by-step explanation:

50% of 12= 6

10%= 1.2

30%= 3.6

5%= 0.6

50%+30%+5%= 6+3.6+0.6=10.2

Classify each number below as a rational number or an irrational number.

Answers

Answer:

Step-by-step explanation:

[tex]\sqrt{29} - Irrational[/tex]

[tex]\frac{10}{3} - Rational[/tex]

[tex]-2\pi - Irrational[/tex]

[tex]-52.(92) - Rational[/tex]

[tex]-\sqrt{81} - Rational[/tex]

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