(7x+1)(2x−3)=0 solve for roots​

Answers

Answer 1

Answer:

x = - [tex]\frac{1}{7}[/tex], x = [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Given

(7x + 1)(2x - 3) = 0 ← in standard zero product form

Equate each factor to zero and solve for x

7x + 1 = 0 ⇒ 7x = - 1 ⇒ x = - [tex]\frac{1}{7}[/tex]

2x - 3 = 0 ⇒ 2x = 3 ⇒ x = [tex]\frac{3}{2}[/tex]

Answer 2

Answer:

x = - 1 / 7   and x = 3 / 2

Step-by-step explanation:

14x2 - 21 x + 2x- 3 = 0

14x2  - 19x -3 = 0

x = 1 9 + 23 / 28 = 3 / 2

x = 19 - 23 / 28 = - 1 / 7

7x + 1 = 0 ⇒ 7x = - 1 = -1 / 7

2x - 3 = 0 ⇒ 2x = 3 = 2/ 3

Hope this answer helps you :)

Have a great day

Mark brainliest


Related Questions

Mr.Bell gave out a science test last week to six honors students. The scores were 88, 94, 80, 79, 74, and 83. What is the standard deviation of the scores? Round to the nearest tenth

Answers

Answer:

88+94+80+79+74+83=

answer divided by 100 then get the answer

The coordinates G(7, 3), H(9, 0), I(5, -1) form what type of polygon?

an obtuse triangle
a right triangle
an acute triangle
an equilateral triangle

Answers

Answer:

acute triangle

Step-by-step explanation:

Answer:
acute triangle

7/2h-3(5h-1/2)
I ALSO NEED STEP BY STEP INSTRUCTIONS NO WEBSITES OR SCREENSHOTS TYSM

Answers

Answer:

the simplified expression of this is -23/2h + 3/2 or -11 1/2h + 1 1/2.

Step-by-step explanation:

7/2h - 3(5h - 1/2)

3(5h - 1/2)

First, we need to use the distributive property to distribute the expression which requires multiplication or division. We take 3 and multiply it by both values in the parentheses which gives us 15h - 1/2. However, since there is subtraction, we need to do the opposite of that which would be 15h +  1 1/2 or 15h + 3/2. Now we can't forget 7/2h at the beginning of the expression. Here is the remaining expression :

7/2h - 15h + 3/2 or 7/2h - 15h + 3/2

Now, we need to combine like terms which requires values to have the same variable. 7/2h and 15h have the same variable so combine like terms. We do subtraction.

7/2h - 15h

We subtract this and get a result of -23/2 or -11 1/2 but don't forget the variable.

-23/2h

1/2 doesn't have a variable so we no longer can combine like terms. Therefore, it would just be -23/2h + 3/2 or -23/h + 1 1/2.

Please help

LOLZ PLEADE BE WUICCKK

Answers

Answer:

answer is 30π cm

Step-by-step explanation:

use formula=2πr

=2*π*r

=2*π*15

=30π

Answer:

30[tex]\pi[/tex]

Step-by-step explanation:

So there is one thing we need to remember to solve thi:

circumfernce = 2[tex]\pi[/tex]r.

We know r(radius) is 15.

Lets plug that in:

2[tex]\pi[/tex]15

Multiply the 2 and 15 together:

30[tex]\pi[/tex]

So, depending on your math teacher, or math question, you might be required to write this in a different form.

So in your case, it seems the answers are written in terms of [tex]\pi[/tex], however sometimes you need to multiply your number by

30[tex]\pi[/tex]

Or

94.248

Looking at your answers, it seems 30[tex]\pi[/tex] is the third answer down.

Hope this helps! :D

find the value of x for the question.​

Answers

Answer:

5

Step-by-step explanation:

Both angles together will equal as they are opposite of each other

therefore

15x=16x-5

15x+5=16x

5=x

Answer:

x = 5

Step-by-step explanation:

The two angles are congruent because of the Vertical Angles Theorem. Since we now know that they're congruent, we can set up an equation to like this:

15x = 16x - 5

Now that we have an equation, we can solve for x.

First, we subtract 15x from both sides. Now we're left with an equation that should look like this:

0 = x - 5

Now we add 5 to both sides to get our solution. It should look like this.

5 = x

And there's your answer! Hope this helps.

(trigonometry) solve for x

Answers

Answer:

x°=40.7°

Step-by-step explanation:

Sin(x°)=15/23

x°=Sin^-1(15/23)=40.7°

The lines of symmetry in a regular polygon are equal to the number of sides minus 2. True or False

Answers

Answer:

False

Step-by-step explanation:

A regular polygon may be defined as the polygon that have sides of equal length known as equilateral and angles made up of equal angles, known as equiangular.

The [tex]$\text{number of lines}$[/tex] of symmetry in a regular polygon is always equal to the number of sides of the polygon. For example, a regular pentagon have 5 sides, so the lines of symmetry of the regular pentagon is also 5, a square having 4 sides also has 4 lines of symmetry.

what is the algebraic expression of the difference of 4 times a and b?

Answers

Answer:

4(a+b)

Step-by-step explanation:

Which set Doesnt describe a function??

Answers

Answer:

set c is the answer

Step-by-step explanation:

for a pair to be a function it can't have 2 different numbers for the same x value

Help is all I need..

Answers

Answer:

[tex] {(x - 1)}^{2} = 16 \\ x - 1 = |4| \\ x = |4| + 1[/tex]

x = +4 +1

x = +5

and

x = -4 + 1

x = -3

find the value of x
answers
118
62
82
28

Answers

Answer:

118°

Step-by-step explanation:

Don't think the answer is 62° this time both 118° and angle x are congruent.

What do I mean by that? Both angles measure the exact same thing.

The only difference is their line length (n) and (m).

Classify the triangle by its side lengths.

Answers

Answer:

isosceles triangle

Step-by-step explanation:

isosceles triangles have two equal sides

NEED HELP 100 POINTS PLZZ

Answers

Replace the x with n:

f(n) = 2n+1

Feel free to mark it as brainliest :D

Answer:

Step-by-step explanation:

given f(x) = 2x + 1

f(n) = 2n + 1

by substitution: n replaces x in the eqn

[tex]2(x+30)=60[/tex]

Answers

Answer:
X = 0

Explanation:
You must start by distributing the 2 by multiplying it by what’s inside of the parentheses. After you distribute the 2 you should have 2X +60 = 60 now you must subtract 60 from the 60 on the opposite side of the equation giving you 2X=60-60.
After subtracting you should end with the value 2X = 0 and then divide 2 by 0 and you should get 0 so your equation is X = 0

Un submarino se encuentra 50m por debajo del nivel del mar y comienza a subir 2m cada 5 minutos ¿a que profundidad se encuentra a la hora de haber comenzado el ascenso?¿cuanto tiempo le faltara para llegar a la superficie?

Answers

Answer:

a) El submarino se encuentra a una profundidad de 26 metros una hora después de haber comenzado el ascenso.

b) Al submarino le falta 1 hora y 5 minutos para llegar a la superficie.

Step-by-step explanation:

a) De acuerdo con el enunciado, la cantidad de metros ascendidos por el submarino es directamente proporcional al tiempo, entonces la profundidad del submarino a la hora de haber comenzado el ascenso se obtiene mediante la siguiente relación lineal:

[tex]h = 50\,m - \frac{2\,m}{5\,min}\times 60\,min[/tex]

[tex]h = 26\,m[/tex]

El submarino se encuentra a una profundidad de 26 metros una hora después de haber comenzado el ascenso.

b) En primer lugar, calculamos el tiempo total del viaje mediante la siguiente relación:

[tex]\frac{2\,m}{5\,min} = \frac{50\,m}{t}[/tex]

[tex]t = 50\,m\times \frac{5\,min}{2\,m}[/tex]

[tex]t = 125\,min[/tex] ([tex]2\,h\,5\,min[/tex])

El tiempo faltante para alcanzar la superficie se calcula mediante la siguiente sustracción:

[tex]\Delta t = 125\,min - 60\,min[/tex]

[tex]\Delta t = 65\,min[/tex] ([tex]1\,h\,5\,min[/tex])

Al submarino le falta 1 hora y 5 minutos para llegar a la superficie.

In the diagram below, OP is circumscribed about quadrilateral ABCD. What is
the value of x?

Α. 88
Β. 82
C. 98
D. 90

Answers

Answer:

82°

Step-by-step explanation:

That is the correct answer to put it simply

The measure of x from the quadrilateral inscribed inside the circle is given by x = 82°

What is a Circle?

A circle is a closed figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle

The circumference of circle = 2πr

The area of the circle = πr²

where r is the radius of the circle

The standard form of a circle is

( x - h )² + ( y - k )² = r²,

where r is the radius of the circle and (h,k) is the center of the circle.

The equation of circle is ( x - h )² + ( y - k )² = r²

For a unit circle , the radius r = 1

x² + y² = r² be equation (1)

Now , for a unit circle , the terminal side of angle θ is ( cos θ , sin θ )

Given data ,

Let the circle be represented as P

Now , the quadrilateral inscribed inside the circle be ABCD

where the measure of m∠A = 98°

The measure of m∠B = 90°

Now , the opposite angles of a quadrilateral inscribed inside a circle are supplementary

So , measure of ∠A + measure of ∠C = 180°

On simplifying , we get

98° + x° = 180°

Subtracting 98° on both sides , we get

x = 180° - 98°

x = 82°

Therefore , the measure of x is 82°

Hence , the value of x of the quadrilateral inside circle is 82°

To learn more about circle click :

https://brainly.com/question/28391204

#SPJ7

Does anyone have answers to the Parametric Functions Test? Pre-Calc

Answers

option 3

option2

hope helps you

have a nice day

Answer:

1. The curve is a parabola with a vertex at (2,1) and is traced from left to right for increasing values of t.

Step-by-step explanation:

1. explanation is in the image

A race horse runs one lap around a lake in 10 minutes.
How long will it take for the horse to run 6 laps around the lake at the same pace?

gaving brainliest out

Answers

Answer:

60 minutes

Step-by-step explanation:

If using the method of completing the square to solve the quadratic equation x^2+5x+10=0x 2 +5x+10=0, which number would have to be added to "complete the square"?

Answers

Answer:

(5/2)² must be added to the equation to complete the square.

Step-by-step explanation:

The given equation is

x^2+5x+10=0

writing it in in square form

(x)² + 2(x) (5/2) + (5/2)²-(5/2)² + 10= 0

We multiply (5/2) to the mid term because we have to make 2x equal to 5x.

As the square formula tells that square of first element plus 2 into first element multiplied by second element plus square of second element.

Making 2x equal to 5x gives (5/2) as the second element.

Therefore add square of the second element but also subtract square of second element to make it equal to the given original equation.

Now we can solve it.

(x)² + 2(x) (5/2) + (5/2)²-(5/2)² + 10= 0

(x + 5/2)²-(5/2)² + 10= 0

(x + 5/2)²- 25/4+ 10= 0

(x + 5/2)²- 25*5 +10*5/4*5= 0

(x + 5/2)²-  125+50/20= 0

(x + 5/2)²-  175/20= 0

(x + 5/2)²=  175/20

Which phrase represents the algebraic expression for r + 12?
A. The difference of a number and twelve.
B. The product of a number and twelve.
C. The quotient of a number and twelve.
D. The sum of a number and twelve.

Answers

Answer:

I guess d is the answer . cause the sum of a number (a number added to something) represented by a variable is added to twelve

Line joining the non adjacent vertices are called

Answers

Answer:

Diagonal

Step-by-step explanation:

Answer:

edge

Step-by-step explanation:

A connected graph is made up of vertices and edges.

AB and BC are perpendicular line segments but I need help !! Please help me out

Answers

Answer:

Step-by-step explanation:

A = (4 , 6)

B = (7 , 4)

C= (5 , 1)

HelpPPppPpPpPppPpP PLEASE:>

Answers

it’s the graph on the top right :)

Answer:

number 2 is the answer by looking at the slopes of the lines.

.. Solve using substitution.
2x - 5y = 12
x = -9

Answers

Answer:

2x–5y = 12

2(–9)–5y = 12

–18–5y=12

–5y=12+18

–5y=30

y= –30/5

y= – 6

(x,y) —> (–9,–6)

A spinner has 8 equal-sized sections. Six of the sections are green. What is the probability that the spinner will land on green?

_________ out of 8 or ________%

Answers

Answer:

6/8

Step-by-step explanation:

or to simplify it, it would be 3/4

The probability that the spinner will land on green is 6 out of 8 or 75%.

What is Probability?

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

The value of probability will be always in the range from 0 to 1.

Given that,

Number of equal sections on the spinner = 8

Number of sections which are green = 6

Probability can be calculated as the ratio of number of desired outcomes to the total number of outcomes.

Here,

Desired outcome is the spinner landing on green.

Probability = 6/8 = 0.75 = 75%

Hence the probability is 6 out of 8 or 75%.

Learn more about Probability here :

https://brainly.com/question/29027275

#SPJ3

1. If Gallup, Harris and other pollsters asked people to indicate their political party affiliation as Democrat, Republican or Independent, the data gathered would be an example of which scale of measurement

Answers

Answer:

im not sure but i think its a bargraph if the answer is coreect please tell

Answers quick plzzzzz

Answers

Answer:

y = -5

...

.............

Which equation is equivalent to 23x= 10?
log, 10 = 30
log, 3x = 10
log 2 = 30
log 3.0
2

Answers

That answer would be d
cause I’m big brain

After applying some properties of logarithm the correct expression for the given logarithmic equation we get is 3x = log₂ 10.

Use the concept of  logarithm defined as:

The logarithmic function is the opposite of the exponentiation of that function.

It can be mathematically defined as:

For [tex]x > 0 , a > 0[/tex], and [tex]a\neq1[/tex],

[tex]y= log_a x[/tex] if and only if x = ay

Then the function is given by

[tex]f(x) = log_a x[/tex]

Where a is the base of function.

The given expression is:

[tex]2^{3x} = 10[/tex]

Take log both sides,

[tex]\text{log } 2^{3x} = \text{log } 10[/tex]

Since we know that,

[tex]\text{ log} a^n = n\text{ log} a[/tex]

Therefore,

3x log 2 = log 10

Dividing both sides by 2

3x = log10/log2

Since we know that,

[tex]\text{log} _a b = \dfrac{\text{log}_c b}{\text{log}_c a}[/tex]

Therefore,

3x = log₂ 10.

Hence,

The correct expression is 3x = log₂ 10.

To learn more about logarithmic expression visit:

https://brainly.com/question/29194783

#SPJ6

Three yams are chosen at random from 15 tubers of which 5 are spoilt Find the probability that, of the three chosen tubers (A) none is spoilt. (B) all are spoilt. (C) exactly one is spoilt. (D) at least one is spoilt

Answers

Step-by-step explanation:

.....................

no work needed! pythagorean theorem.

Answers

2) x = 4

4) x = sqrt(106) = 10.3

Other Questions
Importance of ecowas How far will a skier travel in 2 1/2 minutes? Explain how you figured it out1 minute= 60 seconds 3.If a hawk eats 30% of the weasel population, weasels eat 30% of the mouse population, andmice eat 20% of the wheat plants, calculate the total numbers of each organism that exist inthis ecosystema. Start by finding how many weasels there are to support the one hawki. # of weasels eaten 7.3 = total weaselsii. total weasels x # of mice needed / .3 = total miceiii. total mice x # of wheat plants needed / .2 = total wheat plants help please and thank you help me please im stuck QuestionRaymond wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 200parents whether or not they use cloth diapers. What is the data? Describe two ways in which human trafficking law protects citizens against human rights violations How did the limited supply of trees in the 1990s affect Washington State?Larger sawmills closed and were replaced with smaller operations.The demand for labor in Washington State increased.Smaller sawmills closed and thousands of jobs disappeared.Many new towns were developed in newly cleared areas. In Toss-N-Turn at the County Fair, contestants flip a fair coin and then spin the pointer of a spinner with seven equal sections, numbered 17. Contestants win if the coin lands heads up and the pointer lands on an even number.If Paulina wants to win a prize, should she play Toss-N-Turn or a different game that has a theoretical probability of winning of 1515? Explain Le policier dit, "Bonjour monsieur, vous avez votre____de conduire?"O A. examenO B. roueO c. assuranceD. permis 24. "He cried all night and dawn found him still there, though his tears had dried and only hard, drysobs shook his wooden frame. But these were so loud that they could be heard by the farawayhills... -- from The Adventures of Pinocchio *(2.5 Points)O HyperboleDictionThemeO Allusion PLEASE HURRY Which statement best describes how a republic functions?Citizens elect representatives to govern.A king governs a group of people directly.A select number of elites govern as a group.Citizens vote directly on the laws that govern them. 300 ml of an IV fluid contains 50 mcg of Drug A. If a patient is receiving 1000 ml of this IV fluid, how much of Drug A is this patient getting? Which writing purpose would most likely require an formal style? A. Writing to a former teacher to request a reference for a new job B. Texting your mom saying sorry for eating all the plums in the fridge C. Writing a social media post about baseball for your friends to read D. Emailing the rest of your class project group to change your meeting time How can you be an exemplary person in the society? Help me out please !! Choose the sentence with correct grammar spelling etc. (Must give explanation) Kirk ran 7 1/2 miles around the track. Each lap is 2 1/2 miles. How many laps did Kirk run?Write your answer as a fraction or as a whole or mixed number. Find the equation of the axis of symmetry of the following parabola algebraically.y=x^2-12x+34 how much water should be added to 80 grams of common salt so as to obtain 20% salt solution