What is the value of the expression 2x² – 5x + 6 when
x = -2?

Answers

Answer 1

Answer:

24 is correct answer

Step-by-step explanation:

[tex]2 {x}^{2} - 5x + 6 \\ = 2 {( - 2)}^{2} - 5 \times ( - 2) + 6 \\ = 2 \times 4 + 10 + 6 \\ = 8 + 10 + 6 \\ = 24[/tex]

hope it helped you:)


Related Questions

HELP ME PLS I NEED THIS RIGHT NOW !! <33 LUV U

Answers

Answer might be 50, hope it’s not wrong.

can someone please help me

Answers

Answer: A and B

Step-by-step explanation: They both give 2 points and since a is cords it has to have a x/y axis but C just has two number rows

Miki has 104 nickels and 88 dimes. She wants to divide her coins into groups where each group has the same number of nickels and the same number of dimes. What is the largest number of groups she can have?

Answers

Given :

Miki has 104 nickels and 88 dimes.

She wants to divide her coins into groups where each group has the same number of nickels and the same number of dimes.

To Find :

Largest number of groups she can have .

Solution :

In the given question we need to find the largest number of groups she can have i.e we have to find the LCM of 104 and 88 .

Now , factorizing both of them , we get :

[tex]104=1\times 2\times 2\times 2\times 13[/tex]

[tex]88=1\times 2\times 2\times 2\times 11[/tex]

Form above , we can say that common factors are :

[tex]HCF=2\times 2\times 2=8[/tex]

Therefore , the largest number of groups she can have is 8 .

Hence , this is the required solution .

Answer:

c

Step-by-step explanation:

just make it simple ._.

If you make $20,000 a year, how much do you make in a month?

Answers

Answer:

1,666. a month on an average

Step-by-step explanation:

Answer:

$1,670 a month (rounded)

Step-by-step explanation:

Find the midpoint of a segment with the given endpoints.
W(-2,5), X(3,-17) =

Answers

Answer:

The answer is

[tex]( \frac{1}{2} \: , \: - 6)[/tex]

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

W(-2,5) and X(3,-17)

The midpoint is

[tex]M =( \frac{ - 2 + 3}{2} , \: \frac{5 - 17}{2} ) \\ = ( \frac{1}{2} \: , \: - \frac{12 }{2} )[/tex]

We have the final answer as

[tex]( \frac{1}{2} \: , \: - 6)[/tex]

Hope this helps you

|3n - 5] + 14 = 7
How do answer this equation please show work

Answers


3n+9=7
3n=7-9
3n=-2
3n = -2/3 or -.6

Exercise #4: Each of the following fractions can be converted to a whole number using division.
Do so and show the long division if needed.
A) 12/2
B)45/5
C) 207/9

Answers

A) 6 because 12 divided by 2 is 6

B) 9 because 45 divided by 5 is 9

C) 23 because 207 divided by 9 is 23

4. A BMW convertible travels for 4 hours, by the end the car has driven 120 miles, what was the speed of the BMW? *

Answers

Answer:

           30mph

Step-by-step explanation:

120 diveded by 4=30

Answer: 30

Step-by-step explanation:

120 Divided By 4 = 30 Hope That Helps

To pass science, a student must earn at least a grade of 70. How many students failed this science class? A histogram titled Science Grades has grades on the x-axis and number of students on the y-axis. 2 students received a score of 50 to 59; 5 students received a score of 60 to 69; 8 students received a score of 70 to 79; 5 students received a score of 80 to 89; 2 students received a score of 90 to 100.v

Answers

Answer:

7

Step-by-step explanation:

IM DORA

Answer:

7 students

Step-by-step explanation:

HURRY PLEASE!!!
It is given that y varies inversely as x varies. If x = 15 and y = 2, what is the value of y when x = 5?

A) 12
B) 6
C) 4
D) 3

Answers

Answer:

b

Step-by-step explanation:

comment if it was correct

When do u evaluate exponents in the order of operations??
Pls help I got 9 minutes to do this

Answers

Answer: Great more than happy to help!

Exponents come 2nd in line for PEMDAS (order of operations).

Once you finish the parenthesis, you move on to the exponents.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Using the PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Which is a factor of x2 + 8x - 48?
O (X-6)
O (x + 4)
O (x - 16)
O (x + 12)

Answers

Answer:

(x+12)

Step-by-step explanation:

x2 + 8x - 48

x2 + 12x - 4x - 48

(x-4)(x+12)

The factors of the expression are:

(x + 12) and (x - 4).

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

To determine which of the options is a factor of x² + 8x - 48,

We can use either factoring or the quadratic formula.

First, let's try factoring:

x² + 8x - 48 = 0

We need to find two numbers that multiply to -48 and add to 8.

One possible pair of numbers is 12 and -4:

(x + 12)(x - 4) = 0

Now we can see that x = -12 or x = 4 are the solutions to the equation. None of the options given match these solutions.

Therefore,

The factors of the expression are:

(x + 12) and (x - 4).

Learn more about expressions here:

https://brainly.com/question/3118662

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-6x+4y=-18 -x-y=2 solve by subsitution

Answers

Point Form: (1, -3)

Equation Form: x = 1 , y = -3

Point N is on line segment \overline{MO} MO . Given MN=2x, NO=x-2, and MO = 2x+9, determine the numerical length of \overline{MN}. MN .

Answers

Answer:

22

Step-by-step explanation

Javier power walks 4 1/4 miles in 2 hours how many miles does he walk in one hour

Answers

Answer:2.125

Step-by-step explanation: :)

how to find the slope on a table

Answers

M= y2-y1/x2-x1

Make sure you put it in the form

Hope this helps!!:))

Please Help!!!!!


Simplify
12x+3 all over (divide) 36x^2-42x


Please show all your work!!

Answers





There is no way to answer this question

Rewrite in simplest radical form
1
x
−3
6

Answers

1 / (x-3/6)
1 / x-1/2
x1/2

Answer:

To simplify the given radical form, we must recall some properties of exponents as shown below. 1. 1/x⁻ⁿ = xⁿ 2. x¹/² = √x Now, going back to 1/x⁻³/⁶, we have 1/x⁻³/⁶ = x³/⁶ x³/⁶ = x¹/² x¹/² = √x Using the properties provided, we have a simplified form of √x. Answer: √x

Step-by-step explanation:

Jacob wanted to know what the most popular sneakers brand was for his classmates. His class had 30students. To save time he asked the first 10 boys he met. Is this a random sampling for the brand of sneakers? Why or why not?

Answers

No. This is not random sampling as the students chose are not chosen at random. Random sampling would be something done where each sample has equal probability of being chosen. Clearly this is not random sampling.

Add. Be sure to simplify and have your answer in CORRECT scientific notation. (1.63 x 107) + (2.4 x 107) Question 1 options: 1.87 x 107 4.03 x 107 40.3 x 107 4.03 x1014

Answers

Answer:

I am 100% sure its 4.03 x 10^7

Step-by-step explanation:

Vladimir buys 1.20 pounds of Skittles, 7/2 pounds of M&Ms, and 5.2 pounds of pretzels. If the candy cost $1.20 a pound and the pretzels cost $1.10 a pound, how much did Vladimir spend?

Answers

Answer:

$11.36

Step-by-step explanation:

1.20 x 1.20= 1.44

7/2 x 1.20= 4.2

1.44 + 4.2= 5.64

5.2 x 1.10= 5.72

5.64 + 5.72= 11.36

A factory produced 247 televisions in 13 hours. How
many televisions did the factory produce each hour?

Answers

Answer:

19

Step-by-step explanation: divide 247 by 13, and you get 19 tvs.

write down 54300 in standard form

Answers

Answer:

50000 + 4000 + 300

Step-by-step explanation:

you don't need to add the extra zeros . you can if you want .

Linda just turned 15 and is planning to go to college. She has researched her favorite Texas university and discovered the tuition there is around $14,000 per year. From her 15th birthday, Linda received a $5000 gift that she will use for her first year of college tuition. Linda will begin her new part time job soon and wants to save money every month for the next 3 years to also contribute to her first year of college. What is the minimum amount of money Linda needs to save in order to completely pay for her first year of college tuition?

Answers

Answer:

Linda needs to raise a minimum of $9,000 to completely pay for her tuition fee for the first year, that is, $250 per month

Step-by-step explanation:

Tuition fee = $14,000 per year

Linda received a $5000 gift that she will use for her first year of college tuition during her 15th birthday

Amount remaining = Tuition fee - gift money received

= $14,000 - $5,000

= $9,000

Linda needs to raise $9,000 in the next three years to contribute to her first year of college tuition

The minimum amount Linda needs to save each month in the next three years to raise $9,000

= Remaining tuition / 3 years

= $9,000 / 3 * 12 months

= $9,000 / 36 months

= $250 per month

Find an equation of the line that has a slope of 5 and a Y intercept of 3. Write your answer in the form of Y=mx+b.

Answers

y=mx+b
m=slope
b=y-intercept

y=5x+3
Y= 5x + 3 you start at 3 and go up five and Over to the left 1

What is the sum of 1.57 and 6.88? 7 tenths, 3 hundredths, and 5 thousandths 8 ones, 4 tenths, and 5 hundredths 5 ones, 4 tenths, and 8 hundredths 7 tenths, 4 hundredths, and 5 thousandths

Answers

Answer:

8 ones, 4 tenths, and 5 hundredths

Step-by-step explanation:

just took the quiz

Answer:

8 ones, 4 tenths, and 5 hundredths

Step-by-step explanation:

The ratio between the number of students (s) on a field trip and the number of teachers (t) on the field trip is 21/4. There are 84 students going on the field trip. How many teachers must go? *

Answers

Answer:

Step-by-step explanation:

If there needs to be 4 teachers per 21 students, you would divide the total amount of students by 21 and multiply that answer by 4. SO...:

84 ÷ 21 = 4 groups of 21 students.

4 groups × 4 teachers = 16

*** Answer***

16 TEACHERS

What is 150 divided by 18

Answers

Answer:

8.33333333333

Step-by-step explanation:

Answer:

8.33

Step-by-step explanation:

Lupe had $100 to buy party supplies for her little sister's birthday. She bought 12 bags of party favors and 15 party hats. Each bag of party favors cost $5.30, and each party hat cost $1.95. How much money did Lupe have left after her purchases? $7.15 $20.50 $36.40 $65.75

Answers

Answer:

He had 7.15 dollars left over

Step-by-step explanation:

12 x 5.3 = 63.6

15 x 1.95 = 29.25

63.6 + 29.25 = 92.85

100 - 92.85 = 7.15

hope this helps you :)

pls mark brainlest ;)

The money left with Lupe after her purchase is $7.15.

Given,

Lupe had $100 to buy party supplies for her little sister's birthday.

She bought 12 bags of party favors and 15 party hats.

Each bag of party favors costs $5.30.

Each party hat cost $1.95.

We need to find how much money Lupe has left after her purchases.

How do we find the amount left after spending from the total amount?

We will subtract the amount spent from the total amount given.

The number of spending may depend on the number of items bought and the cost of each item.

If one item cost = $a

And number of items bought = 2

The total amount spent = 2 x $a = $2a

Find the amount Lupe has.

= $100

Find the cost of one party bag.

= $5.30

Find the cost of one party hat.

= $1.95

Find the number of the party bags.

= 12

Find the number of the party hats.

= 15

Find the cost of 12 party bags.

= 12 x $5.30

= $63.6

Find the cost of 15 party hats.

= 15 x $1.95

= $29.25

Find the money left.

= $100 - ($63.6 + $29.25)

= $100 - $92.85

= $7.15

Thus the money left with Lupe after her purchase is $7.15.

Learn more about finding the cost of each item from the total amount spend given here:

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Simplify the expression.
14x - 2, for x = 7
14x-2

Answers

Answer:

Step-by-step explanation:

14X - 2

14 (7) - 2

98 - 2

96

The value of the expression at x = 7 will be 96.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given expression is 14x - 2. The value of x is 7. The value of the expression at x =7 will be calculated as:-

E = 14x - 2

E = 14 x 7 - 2

E = 96

Therefore, the value of the expression at x = 7 will be 96.

To know more about an expression follow

brainly.com/question/723406

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