What method would be best to solve this equation

0.4x^2=3.5x

-Quadratic formula

-Factoring

-Completing the square

Answers

Answer 1

Answer:

Quadratic formula

Step-by-step explanation:

Quadratic formula is the best when solving a quadratic equation.


Related Questions

graph the line y=-1/6+1 , I need help tho :/​

Answers

Answer:

Step-by-step explanation:

What is the area of this shape


A.178 in

B.269 in

C.262 in

D.48 in

Answers

Answer:

262 in² is the answer

Step-by-step explanation:

12 ×6 + 16×7+13×6 = 262

Answer:

269 in.^2

Step-by-step explanation:

area of the shape = (12*6) + (4*7) + (6*13) + (7*16)

=72 + 28 + 78 + 91

=269 in^2

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP



Answers

Answer:

i think its C if i may be correct

Solve the system. Tell how many solutions the system has.

Answers

Answer:

one

Step-by-step explanation:

the answer is one

i hoped this help

which is equivalent to 6.253×10-2​

Answers

Answer:

60.53 is equivalent to this number.

PLEASE HELP. !!!!!!!!!!

Answers

the answer is 50 because ST and RT are equal

Find mZB.
Round to the nearest degree.
11
B В
7.
15

Answers

Answer:

m∠B = 111º

Step-by-step explanation:

use law of cosines

c² = a² + b² - 2ab*cosC

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

15² = 7² + 11² - 2(7)(11)cosB

225 = 49 + 121 - 154cosB

225 = 170 - 154cosB

Subtract 170 form both sides

55 = -154cosB

Divide both sides by -154

-0.3571428571 = cosB

m∠B = arccos -0.3571428571

use calculator

m∠B = 110.924832425009406

Rounded

m∠B = 111º

Round your answer to the nearest hundredth.
B
3
35
А
4
.
с
?
I need an answer plz

Answers

Answer:

Hello there, lol.

Adjacent = Opposite/ Tan(35)

Adjacent = 4.3

Answer:

4.28

Step-by-step explanation:

basically using the sine ratios :

a/sinA = b/sinB = c/sinC

so, let's call the known side a (3) and its opposing angle A (35 degrees).

and we know C is 90 degrees.

sin(90) = 1

b = the missing side AC.

and because the sum of all angles in a triangle is always 180 degrees, the missing angle B is

B = 180 - 90 - 35 = 55

AC/sin(55) = 3/sin(35)

AC = b = sin(55) × 3/sin(35) = 4.28

a little more practice and calculate also c that way :

3/sin(35) = c/1

c = 3/sin(35) = 5.23

LABC measures 90° and ZABD measures
25. What is the measurement of ZDBC?

Answers

Answer: The measurement of angle DBC is 65 degrees

Step-by-step explanation:

Line BD splits ABC into two angles ABD and DBC.

If ABC is 90 then the measures of ABD + DBC will be 90. Since we know the measure of ABD we can make this equation and solve it

[tex]90=25+x\\90-25=25+x-25\\65=x[/tex]

area of irregular figures

uhmmm

Answers

Answer:

146

Step-by-step explanation:

4×12+5×10+4×12=146

help! is due today please

Answers

Answer:

Option 2

Step-by-step explanation:

Minimum value is going to be in the y part of our coordinate, so we can just look there. I went ahead and used a graphing calculator to make things easy.

Starting off with option 2, we can see the minimum is -10. And in option 4 we can see the smallest y value is -6.

Using a graphing calculator (I used desmos), we can graph these other functions and figure out their minimums.

Option 1's y minimum is -7, and Option 3's y minimum is -2.25.

Option 1: -7

Option 2: -10

Option 3: -2.25

Option 4: -6

The questions asks for the smallest minimum value, which in this case is option 2.

Four months ago, Cynthia signed up to receive email notifications to remind her to change her contact lenses,
Cynthia's first email arrived 9 days after she set up the notifications, and her second email arrived 14 days after
the first. Emails continued to arrive every 14 days.
Assuming n is a positive integer, which function gives the number of days, c(n), after Cynthia set up the
notifications that her nth email arrived?

Answers

Answer:

I think 14n + 9

Step-by-step explanation:

since she got her first email in 9 days and got her second email 14 days later, and it continues to appear every 14 days.

so I think it must be 14n + 9

i think the answer is c

The radius of a circle is 6 meters. What
is the circle's area?

Answers

Answer:

A = 36 pi m^2 or approximately 113.04 m^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

The radius is 6

A = pi 6^2

A = 36 pi m^2

Using the approximation of 3.14 for pi

A =113.04 m^2

Answer:

A≈113.1

Step-by-step explanation:

A=πr^2=π·6^2≈113.09734

ILL BRAINLIEST YOU IF YOU HELP ME PLEASE

Answers

option C is correct

b and c are parallel lines because they both are making equal angles at the point of intersection with line d

Answer:

the answer is c. because

95 plus 85 is equal to 180 mean its straight line

Step-by-step explanation:

A parallelogram has a base of 16 centimeters and a height of 4 centimeters

What is the area of the parallelogram?

A) 128 cm²

B) 16 cm²

C) 64 cm²

D) 32 cm²

Answers

Answer:

Area = 64 cm²

Step-by-step explanation:

The area of a parallelogram is found by using the formula A = b x h

Where A is the area, b is the base and h is the height

A = 16 x 4

A = 64

DISCLAIMER: THERE ARE MANY QUESTIONS LIKE THIS ONE, SO MAKE SURE THAT YOU ARE ANSWERING THIS SPECIFIC QUESTION.

Which of the followinmg estimates at a 95% confidence level most likely comes from a small sample?
A. 71% (±18%)
B. 60% (±4%)
C. 62% (±6%)
D.65% (±2%)

Answers

Answer:

A. 71% (±18%)

Step-by-step explanation:

Based on the confidence interval relation :

Mean ± Margin of error

The mean could be any given value :

However, the margin of error at a given confis nce level will will affected by the sample size, larger sample sizes will result in smaller margin of error values as the it will result in a large value denominator hence giving a small margin if error value when divided.

Margin of Error = Zcritical * σ/√n

Since.weve been told that the sample size is small, this will result in a large error margin value, from the options given, the value with the largest error margin value will be produced by the smallest samole size. Hence the option with the largest error margin value is ; ±18%

write an equation for each function notation. then complete the table

Answers

Answer:

30. Y= ×(-3)+4

Step-by-step explanation:

-2(-3)=6+4=10

therefore 1(-3)+4

=1

2(-3)=-6

-6+4=-2

WORTH 25 POINTS!!!!
match the following

Answers

Answer:

Step-by-step explanation:

Domain of a function is defined by the set of x-values (input values) and Range is the set of y-values (output values) of the function.

1). The range and domain of P = {(x, y)| y = 3}

Domain: Set of all real numbers

Range: {y: y=3}

2). The domain set of C = {(2, 5), (2, 6), (2, 7)}

 Domain: {2}

3). The range set of E = {(3, 3), (4, 4), (5, 5), (6, 6)}

  Range: {3, 4, 5, 6}

4). The range and domain set of F = {(x, y)| x + y = 10}

   Domain = Range = {All real numbers}

Find the area of the shaded region.

Answers

Answer:

[tex]48\pi\\\approx 150.796[/tex]

Step-by-step explanation:

1.Approach

To solve this problem, find the area of the larger circle, and the area of the smaller circle. Then subtract the area of the smaller circle from the larger circle to find the area of the shaded region.

2.Find the area of the larger circle

The formula to find the area of a circle is the following,

[tex]A=(\pi)(r^2)[/tex]

Where (r) is the radius, the distance from the center of the circle to the circumference, the outer edge of the circle. ([tex]\pi[/tex]) represents the numerical constant (3.1415...). One is given that the radius of (8), substitute this into the formula and solve for the area,

[tex]A_l=(\pi)(r^2)\\A_l=(\pi)(8^2)\\A_l=(\pi)(64)[/tex]

3.Find the area of the smaller circle

To find the area of the smaller circle, one must use a very similar technique. One is given the diameter, the distance from one end to the opposite end of a circle. Divide this by two to find the radius of the circle.

8 ÷2 = 4

Radius = 4

Substitute into the formula,

[tex]A_s=(\pi)(r^2)\\A_s=(\pi)(4^2)\\A_s=(\pi)(16)[/tex]

4.Find the area of the shaded region

Subtract the area of the smaller circle from the area of the larger circle.

[tex]A_l-A_s\\=64\pi - 16\pi\\=48\pi[/tex]

[tex]\approx150.796[/tex]

look at the picture it has what i need help with

Answers

There's a trick to solve these graph questions

Solve the given quadratic equations in the options , the points which match with the changed graph will be the final option

if you solve the first option F(x) = x2-2

you'll get x = +2 and -2

as you can see , the Fx graph cuts the x axis at +2 and -2 and thus option A is correct

thankyou

i need help with geometry

Answers

Answer:

[tex] \frac{AQ + 15}{AQ} = \frac{10 + 6}{6 } \\ 6AQ + 90 = 10AQ + 6AQ \\ 10AQ = 90 \\ AQ = 9[/tex]

Answer:

AQ = 9

Step-by-step explanation:

Given a line parallel to the side of a triangle and intersecting the other 2 sides then it divides those sides proportionally , that is

[tex]\frac{6}{10}[/tex] = [tex]\frac{AQ}{15}[/tex] ( cross- multiply )

10 AQ = 90 ( divide both sides by 10 )

AQ = 9


139°
x° find the value of x.


Answers

Answer:

x = 139

Step-by-step explanation:

The angles are alternate exterior angles , and when the lines are parallel, alternate exterior angles are equal

x = 139

True or False: in a table of a proportional relationship, the ratio or y/x is constant.

Answers

Answer:

true

Step-by-step explanation:

It is True that in a table of a proportional relationship, the ratio or y/x is constant.

What is a proportional relationship?

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

It is given that, y∝x

In order to eradicate the proportional sign introduces the constant as,

y=kx

k=y/x

k is the constant value.

Thus, it is True that in a table of a proportional relationship, the ratio or y/x is constant.

Learn more about the proportional here:

brainly.com/question/14263719

#SPJ2

if k=100-4n
what is the value of n when k is 99

Answers

Answer:

1/4

Step-by-step explanation:

when k=99

=>99=100-4n

=>4n=100-99

=>4n=1

=>n=1/4

What is the exact value of tan(pi/4)?

Answers

1

The exact value of tan(π4) tan ( π 4 ) is 1 .

I will give BRAINLIEST to the correct answer
Find the measure of angle 6.

Answers

Answer:

85°

Step-by-step explanation:

the two lines that have red arrows on them are parallel and are cut by a transversal so angle 6 and the 95° angle are same side interior angles so they are supplementary angles so they need to add to 180°

∡ 6 = 180-95 = 85°

HELP ASAP!
The graphs below have the same shape. f(x) = x2.
What is the equation of the graph of g(x)?

Answers

Answer:

A

Step-by-step explanation:

Given the graph of f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift to the left of a units

• If a < 0 then a shift to the right of a units

Here g(x) is the graph of f(x) shifted 3 units to the left, then

g(x) = (x + 3)² → A

Answer:

A

Step-by-step explanation:

1. 8x-2y = -24
A.what is the slope-intercept form?

B.What is the slope?

C.What is the y intercept?

Answers

Answer:

8x-2y = -24

Step-by-step explanation:

Slope = 34

Y-intercept = 7

Handel and Charles plan to rent one of the two community garden spaces shown. Space A rents for $1.50 per square unit, and Space B rents for $1.25 per square unit.

Answers

Answer:

Yesaahhauehwusbwubsauwi8whbwuwbwuwbwjbw

pleaseeee helpppp meee!!

Answers

Answer:

15 players on each team

Step-by-step explanation:

- 2 players from EACH team is subtracted= 2(players)x6(teams) = 12 players in total off the field

- now there are only 78 players on the field

(78+12)/6= 15

-Adding the amount of players on the feild and the players that were sent for equitment is 90. Then dividing 90 by the amount of teams there are, 6

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