how is estimation useful ​

Answers

Answer 1

Answer:

Your taking a close guess to what the answer or what something could be. This is why estimating is useful.

Step-by-step explanation:


Related Questions

Rewrite x/-4 ≥ -1 so the negative sign in the fraction is with x. Then multiply each side by 4. What inequality do you get?

Answers

Answer:

hii

Step-by-step explanation:

I got 2.14 GPA but just want my answer checked? It sounds dumb but this this grade would mean a lot to me. Instructions are on there

Answers

I got 3.75. Add up the grade points (I got 15) then you divide by 4. 15\4 = 3.75.

Solve - (7a - 6) = -7a - 2

Answers

Answer:

Hi there

Your answer is

NO SOLUTION!

Step-by-step explanation:

-(7a-6)=-7a-2

-7a+6 = -7a -2

+7a

6=-2

-(7a-6)=-7a-2
-7a+6=-7a-2
statement is then 6=-2
so it’s false meaning there is no solution

There are
50 apples in box. Ten are
green and the remainder are red. Express
as a ratio
the following​

Answers

Answer:

10:40

Step-by-step explanation:

What is the exponential form of the expanded form below? 10-10-10-10.10 O5-10 O5 O10 O10​

Answers

Answer:

10101010.10051050010010

Step-by-step explanation:

You had $21 to spend on three pens .After buying them you had $12 how much did each pen cost

Answers

I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3

Sarah buys a shirt on sale at
Jersey's. The original price was
$28, but the shirt is on sale for 30%
off.
If there is a 5% sales tax, how
much did Sarah pay for the shirt?
(Write the answer as a decimal to 2
places.)

Answers

Answer:

$20.58

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

divide 28 from 30. 2 can go into 3 ones its 2 so subtract its one bring down 8 then the answer is 20

         20

28     _______

         30

        - 2

         ____

          10

       

f(x)=4x^5-8x^4-5x^3+10x^2+x-2
Use the rational zero test to find all possible rational zeros of f, separate with commas if needed. I already tried (2x+1)(2x-1)(x+1)(x-1)(x-2) and WebAssign says it’s incorrect.

Answers

Answer:

-1; -1/2; 1/2; 1; 2          or    factors of -2 are -1, 2, 1, -2

factors of 4 are 1, 4, 2, -1, -4, -2

possible zeros are -1, 1, 1/2, -1/2

try 1

Step-by-step explanation:

Clayton Kershaw, a baseball player for the Los Angeles Dodgers, makes $30.15 million per year. There are 162 games in a major league baseball season. Carmello Anthony, a basketball player for the Knicks, makes $24.81 million per year. There are 82 games in a NBA season. Which player is making more money per game played? Round any answers to the hundredths place.

Answers

Answer:

Carmello Anthony make more money per game

Step-by-step explanation:

we are expected to calculate how much each player is making per game, compare the values and tell who makes more money per game

Clayton Kershaw

given data

$30.15 million per year

There are 162 games in a major league baseball season.

therefore a game will be worth

=30,150,000/162

=$186,111

Carmello Anthony

given data

$24.81 million per year

There are 82 games in a NBA season.

therefore a game will be worth

=24,810,000/82

=$302,561

from the analysis, Carmello Anthony make more money per game

                                               

What is the answer for this question? 6x^2 - 35x + 49 ( factorising quadratics btw)

Answers

Answer:

x=7/2  x=7/3

Step-by-step explanation:

22000 in standard form

Answers

Answer : [tex]22.000[/tex] x [tex]10x^{3}[/tex]

Step-by-step explanation:

Answer:22 x 10^3

Step-by-step explanation:

3:20 what time will it be in 35 minutes

Answers

Answer: 3:55

Add 20 and 35, to get the number of minutes out of 60.

20 + 35 = 55

The time will be 3:55 35 minutes after 3:20.

Hope this helps you!

Answer:

It will be 3:55 because 20 plus 35 equals 55 making it 3:55 in the next 35 minutes.

Step-by-step explanation:

20+35=55

Decide of the three numbers can be the measures of the sides of a triangle.

A. 3, 6, 1
B. 4, 9, 7
C. 7, 21, 14

Answers

I believe the correct answer is B

10
MILEAGE OF PETER'S CAR
160
140
Miles Traveled
8 8 8 8 8 8 8 8
60
1 2 3 4 5 6 7 8 9 10
Gallons of Gas
The graph shows the number of miles Peter's car traveled and the gallons of gas used.
Which equation can be used to find the distance in miles, d, that the car can travel on g
gallons of gas? *
(5 Points)
d = 169
d = 309
d=249
d=129

Answers

Answer:

[tex] d = 24g [/tex]

Step-by-step explanation:

The graph shows a proportional relationship between distance travelled in miles and the gallons of gas used. Thus, a simple equation can be written to represent this relationship by simply applying the the equation that describes a proportional relationship.

Equation representing a typical proportional relationship is y = kx, where k is the constant of proportionality.

In this case,

y = distance in miles travelled represented by d

x = gallons of gas used represented by g

k = constant of proportionality which is distance travelled per gallon = [tex] \frac{d}{g} = \frac{120}{5} = 24 [/tex]. (note: to get k, you can use any coordinate pair of a point in the line graph).

Therefore, an equation that can be used to find the distance travelled is:

[tex] d = 24g [/tex]

I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so all I need are the a, b, and c values. for this problem, I am required to show any equations used to solve for the variable. hope you can help me, thanks!!​

Answers

Answer:

  x = 14

Step-by-step explanation:

Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.

The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:

  138 = (376 -23x) +(x^2 -8x)

Subtracting 138 and collecting terms we have ...

  x^2 -31x +238 = 0

For your calculator, a=1, b=-31, c=238.

__

Additional comment

You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.

For x=14, the marked angles are A = 84°, C = 54°.

Sung borrowed money from his parents over the last three days. This is represented by the negative values in the table.

What is the total of the values?
What is the average of the values?
Day 1 is negative 4 dollars, day 2 is negative 2 dollars, day 3 is negative 3 dollars.

Answers

Answer:

-$9

-$3

Step-by-step explanation:

So sorry i'm late!

Answer:

I'm terrible at explaining so here's a screenshot

Step-by-step explanation:

What is the answer to F(x)=-5x+7 if f(2)

Answers

Answer:

F(x)= -3

Step-by-step explanation:

Plug the 2 into your X variable

-5 (2) + 7

PEMDAS to solve

Multiply

-5 * 2 = -10

Add

-10 +7 = -3

Step-by-step explanation:

f(x)= -5x+7

f(2)= -5(2)+7

f(2)= -10+7

f(2)= -3

Graph XY with endpoints X(−3, 1) and Y(4,−5) after the composition. Translation: (x, y)→(x, y+2) Rotation: 90° about the origin

Answers

Answer:

X’ is (3,3) and Y’ is (-3,-4)

Step-by-step explanation:

Here, we want to get the coordinates of the point XY after translation and rotation about the origin at 90 degrees

X (-3, 1 ) and Y (4,-5)

Using the translation we have

(-3, 1 + 2) and (4, -5 + 2)

= (-3,3) and (4 , -3)

Rotation about the origin, we have

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

So the new set of points will be:

(3,3) and (-3, -4)

Transformation involves changing the position of a point or line or shape.

See attachment for the graph of X"Y"

The endpoints are given as:

[tex]\mathbf{X = (-3,1)}[/tex]

[tex]\mathbf{Y = (4,-5)}[/tex]

A translation of [tex]\mathbf{(x,y) \to (x,y+2)}[/tex] means that:

[tex]\mathbf{X' = (-3,1+2)}[/tex]

[tex]\mathbf{X' = (-3,3)}[/tex]

[tex]\mathbf{Y' = (4,-5 + 2)}[/tex]

[tex]\mathbf{Y' = (4,-3)}[/tex]

A 90 degrees rotation about the origin is:

[tex]\mathbf{(x,y) \to (y, -x)}[/tex]

So, we have:

[tex]\mathbf{X" = (3, 3)}[/tex]

[tex]\mathbf{Y" = (-3, 4)}[/tex]

See attachment for the graph of X"Y"

Read more about transformation at:

https://brainly.com/question/13801312

I NEEEEDD HELP PLSSS

Answers

Answer: 32/9

:P

Step-by-step explanation:

Answer:

9x - 24 = 8 (D)

Step-by-step explanation:

3/4x - 2 = 2/3

Find ways to get each number (for example the 9x in 9x - 2 = 8) using the 3/4x

If we’re using 9x - 2 as the example, you find how many 3/4s fit into 9, which is 12

So the scale factor is 12.

You do 3/4*12 for 9 and see if it also fits with the -2

-2*12 = -24

You know that that one is wrong.

But if you look, there is an equation that has 9x and -24, so the third one is the answer

(Had I not been lucky enough to find those numbers before, you would’ve just done the same steps with the other problems)

Hope this helps! Good day ^_^

Given the functions f(x) = 4x2 - 1, g(x) = x2 - 8x + 5, and h(x) = -3x2 - 12x + 1, rank them from least to greatest based on their axis of symmetry.

Answers

Answer:

h(x), f(x), g(x)

Step-by-step explanation:

Given

The functions

f(x) = 4x² - 1g(x) = x² - 8x + 5h(x) = -3x² - 12x + 1To findRank by value of axis of symmetry in ascending orderSolution

Axis of symmetry is defined by x- value of the vertex which is calculated by a formula -b/2a

f(x) → 0/2*4= 0g(x) → - (-8)/2 = 4h(x) → -(-12)/2(-3) = -2

Ranking in ascending order is

h(x), f(x), g(x)

Jeremy has $30. He pays $8 to wash his car. His friend pays back $16 that Jeremy had loaned to him. How much money does Jeremy have now?

Answers

Answer: $38 because 30-8= 22, 22+16=38

Answer:

38 dollars

Step-by-step explanation:

He starts with 30, loses 8 so 30-8 is 22 and he gets 16 so 22+16 is 36


a) Is {a, e,i,o,u} a subset of {a,b,c,d,e,f,g,h,i)
Why?

Answers

Answer:

No

Step-by-step explanation:

u and o arent elements of {a, b, c, d, e, f, g, h, i}

·A nutritionist recommends that an adult male consume 55 grams of per day. It is acceptable for the fat intake to differ from this amount by at most 25 grams. Write and solve an absolute-value inequality to find the range of fat intake that is acceptable. Graph the solutions.​

Answers

This is the answer I hope
It helps


Use the number line and the additive inverse to find the
difference.

Answers

3/4, the negatives cancel each other out so you add them

Answer:

Use the number line and the additive inverse to find the difference.

Step-by-step explanation:

3/4

Oct 09, 11:40:51 AM
Solve the following inequality for f. Write your answer in simplest form.
9f + 5(-8f +1) < 3f +7 – 10
fi
Submit Answer
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attempt out of 2
Copyright 2020
DIL

Answers

get it sis 57
11 23 fhsjjdjrjr

WHAT IS 0.9+0.7=? type your answer

Answers

Answer:

1.6

Step-by-step explanation:

0.9

0.7

----

1.6

basically add it how you would usually

why do you multiply by 4/3 when you have 1/2x+2=3/4y when solving for y?

Answers

Step-by-step explanation:

You multiply by 4/3 because you are essentially "dividing" both sides by 4/3. You have to take the reciprocal of 3/4 which is 4/3 in order to cancel out the 3/4 because 4/3 x 3/4 will be 1. So the problem will look like this:

(1/2)x + 2 = (3/4)y

4/3[(1/2)x + 2] = 4/3 x 3/4y

4/3[(1/2)x + 2] = y

4/6 x + 8/3 = y

y = 2/3(x) + 8/3

And then from here, if they gave a value for x and y, you can solve for the 2 variables.

Mark simplified 3/5 divided by 5/8; his work is shown below. Identist where he made his error.

Answers

Answer:

Mark forgot to multiply 5 · 5, so he ended up with 5 in the denominator instead of 5 · 5 = 25

Step-by-step explanation:

Will give brainliest, like, and comment to best answer
What is 645 divided by 50?

Answers

Answer:

645 ÷ 50 = 12.9

I hope this helps and that you have a wonderful day ^‿^

Answer:

the answer is 129

Step-by-step explanation:

what is the value of n in the equation -1/2 (2n + 4) + 6 = –9 + 4(2n + 1)?

Answers

n=1
Explanation- I used a advanced calculator
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