what is the solution to 3x2+7x−20=0

Answers

Answer 1

Answer:

Your answer is -4

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Answer 2

Answer:

x = 5/3

x = -4

-Evaluate the exponent

-Multiply the numbers

-Add the numbers

-Evaluate the square root

-Multiply the numbers


Related Questions

A line with a slope of 3 passes through the point (2, 4). What is the y-intercept of the line?

Answers

Answer:

y-intercept = -2

Step-by-step explanation:

Use the point-slope form of a line to do this problem.

[tex]y - y_{1} = m(x - x_{1})[/tex]

y - 4 = 3(x - 2)  Now change the equation to slope-intercept form

y - 4 = 3x -6

y = 3x - 2   So m = 3  b = y-intercept = -2

PLEASE HELP WILL GIVE BRAINLSEIT

Answers

Answer:

Step-by-step explanation:

a) Yes, both are congruent.

Congruence rule: Side Angle Side - S A S

b) Yes both are congruent

S S S congruence rule

What is the formula for the sum of the interior angle measures of a polygon?​

Answers

Answer:

(n-2)x 180 degrees

Step-by-step explanation:

N-2 x180 is the formula

How do I find the midpoint n distance of a segment?

Answers

Answer:

use this formula

Step-by-step explanation:

Answer:

find the points for A and C then use those points in this formula to get the answer: M( x1 + x2/2, y1 + y2/2)

Step-by-step explanation:

Given f(x) = x2 + 2x + 1, what is the shift in the
vertex of the graph of f(x +4)?

Answers

Answer:

A. The vertex shifts 4 units to the left.

Step-by-step explanation:

Whenever a number is added to x, it means the vertex will be moved to the left by the number chosen in units.

Which set of ordered pairs represents a function?


{
(

2
,
4
)
,
(

1
,
6
)
,
(

6
,
3
)
,
(

6
,
4
)
}
{(−2,4),(−1,6),(−6,3),(−6,4)}

{
(
5
,
5
)
,
(
9
,
5
)
,
(

8
,
0
)
,
(

7
,
8
)
}
{(5,5),(9,5),(−8,0),(−7,8)}

{
(

2
,
6
)
,
(
8
,

3
)
,
(

8
,
4
)
,
(
8
,

8
)
}
{(−2,6),(8,−3),(−8,4),(8,−8)}

{
(

2
,

1
)
,
(

1
,
6
)
,
(
2
,
4
)
,
(

2
,

9
)
}
{(−2,−1),(−1,6),(2,4),(−2,−9)}

Answers

Answer:

the second one

Step-by-step explanation:

in order for it to be a function the x values CANNOT repeat.

in answer a the x value -6 repeats so that cannot be a function

in answer b none of the x values repeat so its probably this one but lets check the other ones just in case

in answer c the x value 8 repeats so it cannot be this one

in answer d the x value -2 repeats so it cant be this one \

b is the only one that does have repeating x values therefore it is the second one

B is the answer hope i helped

Alvin is 9 years younger than Elga. The sum of their ages is 85. What is Elga's age?

Answers

Elga is 76 years old.

Which set of ordered pairs does not represent a function?
A {(-7,-5),(-5, -7), (-2,5),(-1, -9)}
B {(-6, -7), (5,3), (-7,-8), (3,3)} C{(7,8), (0,6), (0, -8), (-3,7)}
D {(3,5), (1,9), (-5, -6), (4,9)}

Answers

Answer:

C

Step-by-step explanation:

Because 0 repeats

The answer is C, because the 0 repeats itself in C and in a function, X does NOT repeat. And in this case, X is 0, which repeats.

Kevin cuts a foam block along the red line. When he looks at the newly
exposed face, what is the shape of the cross-section?
4 cm
7 cm
5 cm
A. A rectangle, 4 cm by 7 cm
B. A rectangle, 4 cm by 5 cm
C. A square, 4 cm by 4 cm
D. A rectangle, 5 cm by 7 cm

Answers

Answer:

I think B

Step-by-step explanation:

It's not a square when you cut it since after you cut one side the length would by 4cm by 5cm so there for it's not a square but a rectangle

sorry if it's wrong

helppppppppppppppppppppppppppp if you know how to do thus​

Answers

Answer:

a

Step-by-step explanation:

Answer:

A) [tex]-\frac{7}{4}[/tex]

Step-by-step explanation:

For this question, we can use the rise over run method, which means y over x.

So count how many it takes for the point on top to get to the bottom by x and y.

It takes 7 spaces down (y)  and 4 spaces to the right (x)

So do rise over run and we get

[tex]\frac{7}{4}[/tex]

Meaning that B and C are incorrect. Now what about A and D?

Well the slope is moving down, meaning that it is a negative slope, therefore there must be a negative sign for the slope.

[tex]-\frac{7}{4}[/tex]

A. is correct.

Evaluate and simplify the following complex fraction.

Answers

Answer:  -22/7

=========================================================

Explanation:

The fraction 6/(-7) is the same as -6/7

We have the two fraction -6/7 and 3/11 being divided

The denominators are 7 and 11 respectively.

The LCM of those two numbers is 77 since 7*11 = 77

If we multiply each of those fractions (-6/7 and 3/11) by 77, then we'll clear out those inner denominators to simplify this complex fraction into a nicer one.

77*(-6/7) = -66

77*(3/11) = 21

This means the original complex fraction becomes -66/21

We can further simplify this by dividing each part by the GCF 3

-66/3 = -22

21/3 = 7

Therefore, the final answer is -22/7

Find 2(−5)(−6)−(−12)

Answers

Answer:

72

Step-by-step explanation:

2*-5=-10

-10*-6=60

60-(-12)=60+12=72

A 16 ounce box of cereal is priced at $3.68. Find the cost per ounce *

Answers

Answer:

0.23$

Step-by-step explanation:

16 ounce box of cereal is priced at =3.68$

∴1 ounce box of cereal is priced at=(3.68/16)$

                                                         =0.23$

If the simple interest on ​$5000 for 8 years is ​$​2400, then what is the interest​ rate?

Answers

Answer:

joe

Step-by-step explanation:

Work out the area of the rectangle using a calculator and
giving your answer as a mixed number.
2 2/7 cm
5 1/6 cm

Answers

Answer:

11 17/21 cm²

Step-by-step explanation:

Given

Length = 2 2/7cm

Width = 5 1/6cm

Area of the rectangle = Length * width

Area of the rectangle = 2 2/7 * 5 1/6

Area of the rectangle = 16/7 * 31/6

Area of the rectangle = (16*31)/(7*6)

Area of the rectangle  = 496/42

Area of the rectangle  = 11 34/42

Area of the rectangle  = 11 17/21

Hence the Area of the rectangle  is 11 17/21 cm²

What is the solution of log_2x-4 16=4

Answers

Answer:

WHATS OBJ??

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

Using em property of logarithms log(a)b = x => a^x = b so we getttt

(2x-4)^4 = 16

(2x-4)^4 = 2^4

2x -4 = 2

2x = 6

x = 6/2 = 3

X=3 ywwwwwwww

WILL MARK BRAINLIEST AND GIVE POINTS!!!!!!!

Answers

Answer:

Step-by-step explanation:

x=4

WV=5

find the surface area of a cylinder with a height of 9 inches and a base radius of 4 inches

Answers

answer:

104π or 326.56 inches^2

step-by-step explanation:

know the surface area formula for a cylinderonce you know that plug in the numbers given

formula: 2πrh+2πr^2

r stands for radiush stands for heightπ stands for pi

- now that you know that, plug in

2πrh+2πr^2

2π(4)(9) + 2π(4)^2

72π + 32π

104π

the answer would be 104π inches^2you can further solve this by multiplying by 3.14 instead of putting π

3x-3y= 4
-3x+3y= 3
how do i solve this equation using the elimination method?

Answers

Step-by-step explanation:

3x-3y=4

3y= 3x -4

y= x-4/3

-3x+3y=3

3y= 3x+3

y= x +1

.....

Since they have the same slope and different y-intercepts , then there are no solutions for these equations because they're parallel.

what is the gradient when y=0​

Answers

Answer:

ZERO

Step-by-step explanation:

A slope of zero means the line is horizontal. A horizontal line means you will get a slope of zero.

Solve the simultaneous equations
5x + 2y = 24
3x – 2y = 16

Answers

The x value is 5 and the y value is -1/2. I hope this helps

Martha compro un perfume cuyo precio de lista es de $400. Al llegar ala caja pago $300,¿cuál fue el porcentaje de descuento?​

Answers

Answer:

Es de 75% de descuento

Step-by-step explanation:

400 = 100

200 =50

100 = 25

200+100=300

50+25=75

300 = 75

i will give brainiest. Use a map scale of 1 cm : 80 km. How many centimeters on the map represent 262 kilometers? Round your answer to the nearest tenth of a centimeter.

Answers

Answer:

3.3cm

Step-by-step explanation:

x  =3.725cm --> x = 3.3cm

please help

-33=3(x-9) whats x?

Answers

Answer:

x=-2

Step-by-step explanation:

First you divide both -33 and 3 by 3, should have -11=(x-9) afterwards. Then you want to Move the x to the right side of the equal sign and the -11 to the left of the equal sign. Should look like this: x=9-11. Then subtract and get -2.

what can 980 be divided by

Answers

Step-by-step explanation:

there are so many numbers that can be divided into 980 like 2,3,4,5 etc....

In your own words, describe slope.

Answers

Answer:

it is a downward

discline

Step-by-step explanation:

Answer:

Slope is how steep a line is. It  measured using the formula rise over run or Change in y/Change in X

Step-by-step explanation:

What is the logically equivalent statements of the if a polygon has exactly four sides then it is quadrilateral

Answers

Answer:

four sides

Step-by-step explanation:

can be rewritten in if-then form as If a polygon is a quadrilateral, then it has four sides. Write the converse of this statement: If a polygon is a quadrilateral, then it has four sides

Two forces, one of 120 pounds and the other of 200 pounds, act on the same
object at angles of 30° and -30° respectively, with the positive x-axis. Find
the direction of the resultant of these two forces.

Answers

9514 1404 393

Answer:

  -8.21°

Step-by-step explanation:

The horizontal and vertical components of the forces are ...

  (120; 30°) = (103.923, 60}

  (200; -30°) = (173.205, -100}

Then the resultant is ...

  (103.923 +173.205, 60-100) = (277.128, -40)

and the resultant direction is

  arctan(-40/277.128) = -8.21°

_____

The polar coordinates (A; β) can be translated to rectangular coordinates by ...

  (A; β) = (A·cos(β), A·sin(β))

__

Additional comment

The semicolon in (A; β) signifies the ordered pair is polar coordinates (magnitude; angle). The comma in (x, y) signifies the ordered pair is rectangular (Cartesian) coordinates. This notation is borrowed from the GeoGebra app, a geometry graphing/calculating program. It avoids some confusion. Personally, I prefer the notation A∠β to signify a magnitude and direction in polar coordinates.

encuentra el MCM de 12 y 24

Answers

【Rep.】The least common multiple of 12 and 24 is 24.

                             [tex]\red{ {\hspace{50 pt}\above 1.2pt}\boldsymbol{\mathsf{Procedure}}{\hspace{50pt}\above 1.2pt}}[/tex]

To obtain the least common multiple (lcm) we must do it by simultaneous decomposition.

This method consists of extracting the common and uncommon prime factors, then

   [tex]\large\displaystyle\text{$\begin{gathered}\sf \left.\begin{matrix} \blue{12 \ \ \ 24}\\ \ 6 \ \ \ 12\\ \ 3 \ \ \ \ 6\\ \ 3 \ \ \ \ 3\\ \ 1 \ \ \ \ 1 \end{matrix}\right|\begin{matrix} 2\\ 2\\ 2\\ 3\\ \: \end{matrix} \end{gathered}$}[/tex]

                                 [tex]\sf{L.c.m.(12,24)=2\times2\times2\times3}[/tex]

                                       [tex]\sf{L.c.m.(12,24)=2^{3}\times3 }[/tex]

                                       [tex]\boxed{\boxed{\sf{L.c.m.(12,24)=24}}}[/tex]

{ Pisces04 }

QUICK PLS I ONLY HAVE 7 MINS LEFT

Answers

Answer:

first one

Step-by-step explanation:

Answer:

A, A circular movement around a point

Step-by-step explanation:

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