WILL DO BRAINLIEST IF RIGHT ASAP Evaluate the expression for r = –2. –40(–31 − 16r)2 + r2 =

Answers

Answer 1

Answer: -36

Step-by-step explanation:

To evaluate the expression, you want to plug in r to solve.

-40(-31-16(-2))²+(-2)²              [parenthesis]

-40(1)²+(-2)²                             [exponent]

-40+4                                       [add]

-36

Now we know the expression is equal to -36 when r=-2.


Related Questions

Anyone??

Which is the best estimate of
-18
-9
9
18

Answers

Answer:

18

Step-by-step explanation:

I'd did poses of elomanation

Answer:

d

Step-by-step explanation:

To mail a package, UPS charges a $7 flat fee and $2 per pound. FedEx charges
a $5 flat fee and $3 per pound.

Answers

Answer:

The package where they charge the same must cost $2

Step-by-step explanation:

Given

UPS

[tex]Flat = \$7[/tex]

[tex]Additional = \$2/lb[/tex]

FedEx

[tex]Flat = \$5[/tex]

[tex]Additional = \$3/lb[/tex]

Required

What pound do both charges are the same

Represent the charges with x;

For UPS, it can be written as:

[tex]Charges = 7 +2x[/tex]

For FedEx:

It is:

[tex]Charges = 5 + 3x[/tex]

Equate these charges together

[tex]5 + 3x = 7 + 2x[/tex]

Collect Like Terms

[tex]3x - 2x = 7 - 5[/tex]

[tex]x = 2[/tex]

Hence, the package where they charge the same must cost $2

1. Are there more inches in a mile or second in a day?​

Answers

1day-24hours-60min-0.0167seconds

miles to inches = 63360

1 day is 24 hours, 24 hours is 1440 minutes, 1440 minutes is 86400 seconds

There is 63360 inches in a mile

what is the value of cos 120 degree

Answers

Step-by-step explanation:

√3 I think check the answer for sure

Answer:

-0.5

Step-by-step explanation:

edge

The Rodriguez family drove 260 miles to get to
their summer vacation. The drive took 4 hours.
Assuming the family drove at a constant speed,
how many miles per hour did the Rodriguez
family drive?

Answers

Answer:

65

Step-by-step explanation:

260/4=65

Answer:

65

Step-by-step explanation:

Which of the following expressions is equivalent to (x + 5)2?
O A. (x + 5)(x + 5) + 10(x + 5)
OB. (x - 5)(x + 5) + 10(x + 5)
OC. (x + 5)(x + 5) + 10(x - 5)
OD. (x - 5)(x - 5) + 10(x - 5)



Please someone help me this texts is so important and I need it done by the end of today!

Answers

Answer:

B

Step-by-step explanation:

Expand (x+5)^2 through binomial expansion and you get x^2+10x+25.

Break up the problem into little pieces like (x-5)(x+5) and 10(x+5)

Solve the first piece (x-5)(x+5) by doing something like FOIL.

x^2-25

Do the second piece

10x+50

When you add them together, it becomes x^2+10x+25, and (x+5)^2=(x-5)(x+5)+10(x+5).

What are the next two terms in the sequence?
5, 16, 27, 38 ...

Answers

Answer:

the next two terms are 49, 60

       

Answer:

49, 60

Step-by-step explanation:

There is a common difference between consecutive terms in the sequence.

16 - 5 = 27 - 16 = 38 - 27 = 11

Thus to obtain the next term, add 11 to the previous term, that is

38 + 11 = 49

49 + 11 = 60


What is the completely factored form of xy - 4xły - 5y?

Answers

I believe it is A. y(x^2-5)(x^2+1)
I think it’s a lmk if it’s right

If each interior angle of a regular polygon is 144 degrees. Find the number of sides in it.

Answers

Answer:

10

Step-by-step explanation:

In a polygon

interior angle + interior angle = 180°, thus

exterior angle = 180° - 144° = 36°

The sum of the exterior angles in a polygon = 360°, thus

number of sides = [tex]\frac{360}{36}[/tex] = 10

Answer:

10 sides

Step-by-step explanation:

A decagon is a 10-sided polygon, with 10 interior angles, and 10 vertices which is where the sides meet. A regular decagon has 10 equal-length sides and equal-measure interior angles. Each angle measures 144° and they all add up to 1,440°.

Which is equivalent to 1/4

Answers

Answer:

2/8, 4/16, and so on

Step-by-step explanation:

1/4 could be equal to many numbers as long as when you simplify it down it will reach 1/4

Answer:

2/8

Step-by-step explanation:

There are many fractions which are equaivalent ( equal ) to 1/4 such as 2/8

This is because when you reduce 2/8 to its lowest terms it becomes 1/4.

HOPE THIS HELPED

Solve 12 + 12a + 4a = -4

Answers

Answer:

a=-1

Step-by-step explanation:

we need to get a by itself

first combine like terms

12+16a=-4

now we need to get rid of the 12 so subtract it to other side

-16=16a

now divide 16 by -16 which gives you -1=a

Answer: a=-1

12+12a+4a=-4

(Collect like terms)
12+16a=-4

(Move constant to the right-hand side and change it’s sign)
16a=-4-12

(Calculate the difference)
16a=-16

(Divide both sides of the equation by 16)
a=-1

SOlve plz!!! I need help!! I'm trying to get this done!! I'll DO ANything

Answers

Answer:

3

Step-by-step explanation:

How many times does -6 go into -18?

-6x3=-18

-6 goes into -18 3 times.

So:

b=3

Bam

what does 52 belong to?natural,rational,integer,whole ?

Answers

Answer:

The number 52 is a rational number if 52 can be expressed as a ratio, as in rational. A quotient is the result you get when you divide one number by another number. For 52 to be a rational number, the quotient of two integers must equal 52. ... Thus, the answer to the question "Is 52 a rational number?" is YES.

Step-by-step explanation:

please answer the question

Answers

20 maybe but dont count on me I'm dumb

what 200 times 6 div by 30

Answers

200x6= 1200 and 1200/30=40 so the answer would be 40

HURRY AND ANSWER

Explain how you can tell if the expressions 7x – 4 and 6x – 4 – x are equivalent using the interactive tool.

Answers

Answer i think it is 0.7 but i do not know

Answer:

0.7 but i do not know :)

Step-by-step explanation:

Given the table, what is the common difference in the elevation of the scuba diver?

Answers

Answer:

the common difference is that it's taking away 4 or -4

the common difference would be * -2

A flowchart proof : 1).contains a set of sentences explaining the steps needed to reach a conclusion. 2).uses inductive reasoning to prove a statement. 3).uses a visual representation of the logical flow of steps needed to reach a conclusion. 4).contains a table with a logical series of statements and reasons that reach a conclusion.

Answers

Answer:

3) uses a visual representation of the logical flow of steps needed to reach a conclusion.

Step-by-step explanation:

I took the test.

Flow charts gives a graphical or pictorial representation of the sequential steps which should be followed to solve a given problem.

Flow charts are similar to algorithms in that they provide a stepwise approach to solving a problem or reaching a conclusion on a particular task. However, flow charts reflect presents the sequence of operation in a graphical of pictorial format.

Therefore, flowcharts uses a visual representation of the logical flow of steps needed to reach a conclusion.

Learn more :https://brainly.com/question/17373574?referrer=searchResults

h(x) = 3x + 3
g(x)=-4x + 1
Find (h+ g)(10)
How to solve this ?

Answers

Answer:

h(x ) = 3 x+ 3

 g ( x ) = − 4 x + 1

( h +g ) ( x ) = 3 x + 3 − 4 x + 1 = − x + 4

( h + g ) ( 10 )

= − 10 + 4  

= − 6

Step-by-step explanation:

Help quickly please~❤️❤️

Answers

Answer:

-6-b

Step-by-step explanation:

Which graph correctly shows the solution of the compound inequality 3x 2 -12 and 8x < 16?

Answers

Answer:

8x < 16 it shows the solution of the compound inequality

The area common to both the graph inequalities represent the solution set.

What is inequality? Differentiate between equation and expression?  inequality : An inequality is used to make unequal comparisons between two expressions or numbers.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is the compound inequality as -

3x > -12

and

8x < 16

Refer to the graph of the inequalities attached. The area common to both the graphs represent the solution set.

Therefore, the area common to both the graph inequalities represent the solution set.

To solve more questions on inequality, visit the link below -

brainly.com/question/14610360

#SPJ2

Calculate the distance between the points C=(-9, 9) and N=(-1,5) in the coordinate plane.
Round your answer to the nearest hundredth.

Answers

Answer:

8.94

Step-by-step explanation:

use distance formula

squareroot of (x2-x1)^2 +y2-y1)^2

sqrt (-9 - (-1))^2 +(9 - 5)^2

sqrt (-8)^2 + 4^2

sqrt 64 + 16

sqrt 80

factored becomes

4sqrt of 5 or 8.94427

rounded 8.94

Hope this helps Please mark brainiest

What are the steps to solving this limit?

Answers

Answer:

lim(x---->0) = -5

Step-by-step explanation:

first: sin(x-π/2)= -cosx

so the equation will be :

lim(x---->0) = [-6cos(ax)-1}/cosx

solve :

lim(x---->0) =  [-(6cos(a(0))-1}/cos(0)

cos0=1

lim(x---->0)=(-(6(1)-1)/1

lim(x---->0)=-6+1/1

lim(x---->0)=-5

the least number which is divisible by 12 40 75​

Answers

Therefore 9600 is the greatest four digit number divisible by given numbers. Then, if we add 600 to 9600 then we can get least five digit number exactly divisible by given numbers. Hence 10209 is the least five digit number when divided by 12,40 and 75 leaves remainder 9.


Given point (-6, -2) and a slope of 5, write an equation in slope-intercept form.

Answers

Answer:

y = 5x + 28

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 5 , thus

y = 5x + c ← is the partial equation

To find c substitute (- 6, - 2) into the partial equation

- 2 = - 30 + c ⇒ c = - 2 + 30 = 28

y = 5x + 28 ← equation of line

Austin got 72% of the questions correct on his last math quiz if there were 25 total question how many did he answer incorrect

Answers

Answer:

Austin answered 7 questions incorrectly.

Please please help
|q-8|=14

Answers

Answer:

22, -6

Step-by-step explanation:

q-8=14 or 8-q=14

q=22 or q= -6

Answer:

the answer for the problem |q-8|=14 is q=22 or q= -6

A bacterial population is modeled by the function P (t) = 10,000/1+499e^-0.6t, where t is elapsed time in days. What was the initial population of bacteria?

1
20
36
499

Answers

Answer:

It's B. 20

Step-by-step explanation:

edge 2020

Answer:

B

Step-by-step explanation:

Edg2020

37.8234 rounded to the nearest thousandth

Answers

Answer:

37.823

Step-by-step explanation:

Answer:

37.823

Step-by-step explanation:

A. $35.00
B. $55.00
C. $70.00
D. $75.00
Luke opened a savings
account with a balance of
$0.00 and deposited $20.00.
During the next 2 weeks, he
made two more deposits for
$15.00 and $35.00. At the end
of the month, he made a
withdrawal that brought his
balance back to $0.00.
Assuming no interest was
earned, how much money
did Luke withdraw from his
savings account?
Students, draw anywhere on this slide!

Answers

Answer:

D, $75.00 because 35 plus 15 plus 20 is 75.

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