solve quadratic equation 3x^2+2x-4=0

Answers

Answer 1

Answer:

x1=[tex]\frac{-1-13}{3}[/tex], x2=[tex]\frac{-1+13}{3}[/tex]

Step-by-step explanation:


Related Questions

An angle measures 130.4° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer: 24.8 and 155.2

Step-by-step explanation:

x+x+130.4=180

2x=49.6

x=24.8

Answer:

155.2

Step-by-step explanation:

let x be the supplimentary angle

then the angle is

130.4+x

we have

 

130.4+x+x=180

2x=49.6

multiply both sides with 2

x=24.8

then the angle is

130.4+24.8

155.2

Which expression is equivalent to (+12)×5+7 ?

A. 12+60

B. 12+12

C. 5+67

D. 5+12

Answers

B

(12)x5 + 7
\ /
12 + 12

Melanie is making lemonade for a family barbecue. Her recipe which yields 1 pitcher contains 6 cups of water, 2
cups of sugar and 1 cup of lemon juice. If she wants to make 3 pitchers of lemonade, how many cups of sugar
will she need?

Answers

Well for 1 pitcher of lemonade she needs atleast 2 cups, so if she were to make 3 pitchers that would be 2 cups for each pitcher. Solution is to just multiply 2cups to the number of pitchers:

2cups x 3 pitchers = 6 cups

Melanie would need 6 cups of sugar if she were to make 3 pitchers of lemonade. :))

determine the slope of the table

Answers

Answer:

The slope is -1/2 or -0.5

Hope this helps!

Answer:

The slope is 5

Step-by-step explanation:

if you add 2 to -3 then you get your answer

can someone solve a - 3 over 7 s = -8


and a + 24 = -15

STEP BY STEP PLEASE.

Answers

Answer:

a=-39; s=0.75

Step-by-step explanation:

Solve the System of Equations by Substitution.

First, solve one of the equations for a variable. I'll do the 2nd one because it only has one variable.

a+24=-15 -------> a=-39

Now we know what a is just plug it back into the other equation and get s.

[tex]\frac{a-3}{7s} =-8[/tex]

[tex]\frac{-39-3}{7s} =-8[/tex]

[tex]\frac{-42}{7s} =-8[/tex]

Switch the -8 and 7s

[tex]\frac{-42}{-8} =7s[/tex]

Simplify the fraction

5.25=7s

Divide by 7 to isolate the s

0.75=s

 

Answer:

2)a+24=-15

a=-15-24

a=-39

Step-by-step explanation:

find the value of x round to the nearest tenth

Answers

Answer:

88.2

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relevant relation ...

 Tan = Opposite/Adjacent

 tan(10°) = x/500

 x = 500·tan(10°)

 x  ≈ 88.2 . . . . units

_____

cr sqdancefan on brainly , i saw that the same question was posted somewhere else and someone already answered it .

HELP ASAP PLEASE!!!!
Triangle ABC is similar to triangle PQR, as shown below: Which equation is correct? (1 point) ​

Answers

The one ur selecting is the correct one!

Bula went to Target and bought a new jacket. The price tag said $85 but the sign on the rack said
20% off the price tag. How much did Bula pay for the jacket?
$17
$65
$70
$68

Answers

Answer:

she paid 68 so it is d i think

The answer is $65 i hope this help :)

Natalia bought 888 glitter wands for \$50$50dollar sign, 50.
Determine whether or not each wand purchase below has the same price per wand as glitter wands.

Has the same price per wand as glitter wands
Does not have same price per wand as glitter wands
444 sparkle wands for \$20$20dollar sign, 20
666 fairy wands for \$37.50$37.50dollar sign, 37, point, 50
101010 glow wands for \$65$65dollar sign, 65

Answers

9514 1404 393

Answer:

  6 for $37.50 has the same price

Step-by-step explanation:

The price per wand is found by dividing the price by the number of wands.

  8 for $50   ⇒   $50/8 = $6.25 per wand

__

  4 for $20   ⇒   $20/4 = $5.00 per wand   not the same

  6 for $37.50   ⇒   $37.50/6 = $6.25 per wand   is the same price

  10 for $65   ⇒   $65/10 = $6.50 per wand   not the same

-4<3x+5<=11
Solve the inequalities

Answers

Answer:

-3<x</2

Step-by-step explanation: the slash is the line.

if rectangle one side is 8 times longer than the other then how long is all of the rectangle sides if rectangle perimeter is 270cm.
shorter side is -
longer side is -

Answers

long side-120
short-15
(8x2)+(1x2)=18 for the sides
270/18=15
long side 15x8

Name the plane represented by the front of the box.
BJC, DBF, GBF, or CAB

Answers

Answer:cab

Step-by-step explanation:

Answer: c. GBF

Step-by-step explanation:

Elijah has $500 in a savings account at the beginning of summer he wants to have at least 200 at the end of summer he withdraws 25 per week how many weeks can you order withdraw money from his account

Answers

Answer:

12 weeks

Step-by-step explanation:

Make an inequality equation with x being the number of weeks:

200 > 500 - 25x

*subtract 500 from both sides*

-300 > -25x

*divide both sides by -25*

12 > x

Interpreting Expressions

Breanna thought of a number, added 5 to it, and then multiplied her answer by 3. She got a final number of 21. What was her starting number?

Answers

starting number is 7.


2+5 = 7

7x3 = 21

Answer:

r u going to be a little late to the party but I

What is a rate? I will mark Brainiest

Answers

Answer:

A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69¢, the rate is 69¢ for 12 ounces. ... When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates.

Step-by-step explanation:

Use the Distributive Property to write an equivalent expression.

7m + 7p

Answers

Answer:

7(m+p)

Step-by-step explanation:

7 (m + p) is the answer

ahhahanvm? shushaha bruh what do i do

Answers

Uh I’m not even gonna question it but thanks for the free points ig? Lol

\u gotta ask ur question

Step-by-step explanation:

what is the slope..​

Answers

Answer:

the slope is 2

Step-by-step explanation:

the x's are increasing by 4 each time and the y's are increasing by 2 each time giving you [tex]\frac{4}{2\\}[/tex] which simplifys to 2

{Stop scrolling} this is not a question but I just wanted you to know that you are doing absolutely amazing and I am extremely proud of you:) Ik school can be stressful but just know that you got this loves <3

I love u ♥️

Answers

Thanks. I’m not struggling or anything but thanks for the kind words.

Answer:

Ty :D

Step-by-step explanation:

School is hard

On her way to visit her relatives, Jessica drives 180 miles in 4 hours. What is her average rate of speed in miles per hour?

ASAP!!!

Answers

Answer:

It is 50 mph

Step-by-step explanation:

plz help i will mark you as brainlist

Answers

Answer:

C. Six is to the left of the zero and negative six is to the right.

Step-by-step explanation:

Simple, think of a number line and zero is in the middle, to the left there is positive numbers, like six, and to the right there is negative six.

I’m pretty sure it’s A

Simplify (write in the smallest terms) the following expressions using the laws of exponents and distribution.:))) I WILL GIVE BRAINLIST: )))​

Answers

Answer:

What is the equation without it I would say it is g or e

Step-by-step explanation:

Tanner measured the rate of oil draining from a tank. His measurements showed that the relationship betwđen the height (in inches) of the oil in the tank, h,
and the time in minutes) that the oil was draining, t. could be modeled by the equation h = 8 -0.25t.
According to the model, how long will the oil need to drain for the height to decrease by 1 inch?
0.25 minutes
1 minute
4 minutes
8 minutes

Answers

Answer:

8

Step-by-step explanation:

Been stuck on this for hours, it's the Law of Sines. 25 POINTS!!

Answers

Answer:

Step-by-step explanation:

(Sin27) / 11 = (sin x) / 15

cross multiply

15 sin27 = 11 sin x

keep in calculator as you divide 15sin27 by 11.

sin x = .6190779542

do sin ^ -1 (.6190779542) (It’s a key on the calculator.)

x = 38.25*

9514 1404 393

Answer:

  38.2°

Step-by-step explanation:

According to the equation you are give, ...

  sin(x)/15 = sin(27°)/11

Multiplying by 15 gives you ...

  sin(x) = 15·sin(27°)/11 ≈ 0.619078

The inverse sine function is used to find the angle x. It may show as sin⁻¹ on your calculator.

  x = arcsin(0.619078)

  x ≈ 38.2°

_____

Additional comment

x is shown in the figure as an acute angle, so that is the value we have chosen. The other angle that has sin(x) = 0.619078 is the supplement of this, or 141.8°. The two solutions are shown in the 2nd and 3rd attachments.

i need heelllppppp plzzzz someone helllppp meee

Answers

Answer:

The equation of the line is y =  [tex]-\frac{4}{5}[/tex] x + [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

m is the slopeb is the y-intercept

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

(x1, y1) and (x2, y2) are two points on the line

∵ A line passes through points (2, -1) and (-3, 3)

x1 = 2 ad y1 = -1

x2 = -3 and y2 = 3

→ Use the rule of the slope above to find the slope of the line

∵ m = [tex]\frac{3--1}{-3-2}[/tex] = [tex]\frac{3+1}{-5}[/tex] = [tex]\frac{4}{-5}[/tex]

m = [tex]-\frac{4}{5}[/tex]

→ Substitute the value of m in the form of the equation above

y =  [tex]-\frac{4}{5}[/tex] x + b

→ To find b substitute x and y in the equation by the coordinates of one  

   point of the given points

∵ x = 2 and y = -1

∴ -1 = [tex]-\frac{4}{5}[/tex] (2) + b

∴ -1 = [tex]-\frac{8}{5}[/tex] + b

→ Add [tex]\frac{8}{5}[/tex] t both sides

∵ -1 + [tex]\frac{8}{5}[/tex] = b

[tex]\frac{3}{5}[/tex] = b

→ Substitute the value of b in the equation

∴ y = [tex]-\frac{4}{5}[/tex] x + [tex]\frac{3}{5}[/tex]

The equation of the line is y =  [tex]-\frac{4}{5}[/tex] x + [tex]\frac{3}{5}[/tex]

Your answer must be simplified.

−3 < x -10

Answers

Answer:

7 < x

Step-by-step explanation:

−3 < x -10

Add 10 to each side

−3+10 < x -10+10

7 < x

Stuck on my Trigonometry homework :(

Answers

Step-by-step explanation:

sin 23°/6cm = sin A/13cm

(sin 23°/6cm)×13cm= sin A

A= 60.35

I wish this will answer u, n im sorry if im wrong

Answer:

I think A= 60.35

Step-by-step explanation:

Hope this helped have an amazing day!

According to the table below how many cookies can be made with 1 cup of chocolate chips?




A. 3
B. 2
C. 5
D. 4

Answers

The answer is C. 5 hope this helps

GEOMETRY Please find the X! ​plspls​

Answers

here’s all my work! Sorry my handwriting isn’t good

Answer:

What she said

Step-by-step explanation:

Simplify each expression.
2y+ (4 + 5y). 2d(3). Simplify those two please please answer i will give brainliest!

Answers

Answer:

7y + 4

Step-by-step explanation:

2y + 5y+4

add 2y and 5y

7y+ 4

Answer:

7y +4

Step-by-step explanation:

Open up the brackets ans collect your like terms and simplify the expression.

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