use the quadratic formula to solve x^2-5x-2=0 HELP PLEASE!

Answers

Answer 1

Answer:

I rounded to the nearest hundredth if that's okay.

Step-by-step explanation:

5.37,-0.37

Answer 2

Answer:

[tex]x=\frac{-5+\sqrt{33} }{2}[/tex] and [tex]x=\frac{-5-\sqrt{33} }{2}[/tex]

Step-by-step explanation:

x = [-b±√(b²-4ac)]/2a

x = [-(-5)±√((-5)²-4(1)(-2))]/2(1)

x = [5±√(25+8)]/2

x= [-5±√(33)]/2

Therefore:

[tex]x=\frac{-5+\sqrt{33} }{2}[/tex] and [tex]x=\frac{-5-\sqrt{33} }{2}[/tex]


Related Questions

Write each phrase as an algebraic expression.
16 seconds faster than Aya’s time.

Answers

Given:

The given phrase is 16 seconds faster than Aya’s time.

To find:

The algebraic expression for the given phrase.

Solution:

Let x be the Aya’s time.

16 seconds faster than Aya’s time. It means 16 seconds less than Aya’s time.

We know that a negative sign "-" is used for less than.

16 seconds less than Aya’s time = [tex]x-16[/tex]

16 seconds faster than Aya’s time = [tex]x-16[/tex]

Therefore, the required algebraic expression is [tex]x-16[/tex].


Which number on the number line the correct position of all lines showed

Answers

Answer:

D

Step-by-step explanation: i believe it is D

please help me please​

Answers

Answer:

66.5

Step-by-step explanation:

Let θ represent ∠MLK

Arc length (s) = radius (r) · θ   (theta must be in radians)

Step-by-step explanation:

The radius of a semicircle is 9 miles. What is the semicircle's perimeter?

Answers

Answer:

p = 9π + 18 miles       Exact answer

p = 46.26 miles     decimal approximation

Step-by-step explanation:

The whole circumference of a circle is

c = 2πr

Half a circle's circumference plus the diameter would be the semicircle's perimeter

p = (1/2)2πr + 2r

p = πr + 18

p = 9π + 18 miles    Exact answer

p = 3.14 * 9 + 18

p = 46.26 miles     decimal approximation

graph x2/49+(y+1)2/4=1

Answers

Answer:

The answer is A

Step-by-step explanation:

The given function is  [tex]\dfrac{x^2}{49}+\dfrac{(y+1)^2}{4}=1[/tex] Thus, the graph of the function will be elliptical.

How to find the function which was used to make graph?

There are many tools we can use to find the information of the relation which was used to form the graph.

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

The given function is

[tex]\dfrac{x^2}{49}+\dfrac{(y+1)^2}{4}=1[/tex]

The given function represents the equation of an ellipse.

Thus, the graph of the function will be elliptical.

Learn more about finding the graphed function here:

https://brainly.com/question/27330212

#SPJ2

How many inches are in 4 1/2 feet ?

Answers

Answer:

54 in

Step-by-step explanation:

12 x 4= 48

1/2 ft= 6in

48 +6= 54

There are 54 inches in 4 1/2 feet.

We have,

To convert feet to inches, we know that 1 foot is equal to 12 inches.

To find the number of inches in 4 1/2 feet, we multiply the number of feet by 12 and add the number of inches.

4 feet multiplied by 12 inches/foot = 48 inches.

1/2 foot equals 1/2 multiplied by 12 inches/foot = 6 inches.

So,

4 1/2 feet is equal to 48 inches + 6 inches, which equals 54 inches.

Therefore,

There are 54 inches in 4 1/2 feet.

Learn more about unit conversion here:

https://brainly.com/question/13899873

#SPJ6

500% of what number is 1,450?

Answers

Answer:

34.48 maybe

Step-by-step explanation:

Answer:

Step-by-step explanation:

1450÷500%

1450÷5.0 = 290

There are 8 pencils in the pencil case. 4 of them are blue. What fraction of the pencils are blue?

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

4/8 = 1/2

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

500÷3/5

how much is it?

Answers

2500/3 or 833.3 or 833
1/3

Numbers 1, and 3 please

Answers

Answer:

  1.  shifts the graph right 2 units

  2. y = -2(x -3)² +7

Step-by-step explanation:

1) Replacing x with x-h in any function shifts the graph h units to the right. Here, you have replaced x with (x-2), so the graph will be shifted 2 units to the right.

__

3) The vertex form of the equation of a parabola is ...

  y = a(x -h)² +k . . . . . . . . for vertex (h, k) and vertical scale factor 'a'

Here, the vertex is (h, k) = (3, 7), and the parabola opens downward. This tells us the sign of 'a' is negative.

The graph is not so clear that it is easy to read the value of 'a' directly from it, but there are several clues.

The zeros of the above function are found at h±√(k/a). This graph shows the zeros to be located such that √(7/a) is slightly less than 2. This means the magnitude of 'a' will be slightly more than 7/2² = 1.75. The y-intercept of the function is 7-9a. It is less than -7, but probably more than -14. This puts bounds on 'a':

  -14 < 7-9a < -7

  -21/9 < -a < -14/9   ⇒   -2.33 < -a < -1.56

If we assume that 'a' is an integer value, we have bounded its magnitude as being between 1.75 and 2.33, so a=-2 is a reasonable choice.

The equation of the graph may be ...

  y = -2(x -3)² +7

5/12 × 6/7 = 5/14 with step​

Answers

Answer:

Look below

Step-by-step explanation:

First you multiply the top and bottom

5/12 x 6/7

5x6 and 12x7

you get your new fraction of 30/84

then you simplify it by 6 to get 5/14

hope this helps

A household item uses 433 watts of electricity. This item is used for 34 hours each week. How much CO2 will be produced each week from this item

Answers

Answer:

CO₂ ( produced) =  6477,68 grs   = 6,48 Kgs

Step-by-step explanation:

If the househoñd item uses 433 watts of electricity

In 1 hour will consume    433 wh   or   0.433 Kwh

In 34 hours each week   consumes 0,433* 34      will consume  14,722 Kwh

Considering that 1 Kwh produces between  430- 450 grs of CO₂

( we will take 440 grs per Kwh )

The CO₂ produced in a week for such device is  440* 14,722

CO₂ ( produced) =  6477,68 grs   = 6,48 Kgs

i will give Brainiest if your right

Answers

Answer:

10+5x

Step-by-step explanation:

5(2+x)

Distribute the 5

so 10+5x

do jakiej szkoły po podstawówce można iść bez matematyki (mniej ważna​

Answers

Answer:

Gimnazjum?

Również twoje pytanie jest trudne dla ludzi, którzy mówią po angielsku ...

can u translate that question for me? ^_^

Round to the nearest hundredth (2 decimal places) when necessary

Answers

Answer:

138.23 is the circumference

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

If it's area, then:

area = 1519.76 in²

Step-by-step explanation:

radius = 44/2 = 22

area = πr² = (3.14)(22²) = 1519.76 in²

PLS HELP
Name the following solid.

Answers

Answer:

Triangular prism

It's not a rectangular prism or rectangular pyramid (Those exist?). It's not a pyramid because all sides (excluding the base) don't connect to a singular vortex.

Solve the exponential equation: 4x – 2 = 2x
Question options:

A)

x = 4

B)

x = 0

C)

x = 2

D)

x = – 2

Answers

Answer:

(c)

Step-by-step explanation:

4 x 2 equals 8 8 -2 equals 6 6 4 24

please help. math homework. only three questions.

Answers

Step-by-step explanation:

1). 1

2). 36

3). 16

sorry I can't explain it properly, all you have to do is to dive the coefficient of x by 2 and square the result

What is the average of 86%, 100%, and 70%?

Answers

Answer:

87.3

Step-by-step explanation:

Answer:

85.3333333333

Step-by-step explanation:

add the number then divide them by the number u x them with

If you're interested in anime, I have recommendations in the comments.

Answers

Answer:

I am an anime weeb I have posters in my room

Step-by-step explanation:

Answer:

I'm definitely interested! I'm super new to anime, I just started watching MHA in April.

Select all values of x that make the inequality true: (6x<24)

A. -8
B. -7
C. 6
D. 7
E. 8

Answers

9514 1404 393

Answer:

  A, B

Step-by-step explanation:

Divide both sides by 6 to see what those values should be:

  x < 4

Of course all negative numbers are less than 4, so choices A and B are correct. The given positive numbers are not less than 4, so the remaining choices are not correct.

HELP ME PLEASEEEEEEEEEEE

Answers

Answer:

The perimeter is 16 units

Step-by-step explanation:

Add up all the sides together

1+1+7+7 = 16

16 units is correct I think also because if u add up it all u would most likely get 16 if u don’t tan u did something wrong and also u can calculate the answer if u feel it is wrong and if this answer is wrong truly Srry

Paul is selling $2 raffle tickets for his baseball team. He needs to sell at least
$230 worth of tickets to earn a team jacket. If he has already sold $50 worth of tickets, how many more raffle tickets, x, does Paul need to sell to earn a team jacket? ​

Answers

Answer: 90 more tickets

Step-by-step explanation:

230 - 50 = 180

180 divided by 2 = 90 tickets

How can I solve the statement below?

Solve for angle A in the right triangle below, given that b = 2.5 and c = 6. (Note: Drawing is not necessarily to scale.)

Answers

9514 1404 393

Answer:

  A ≈ 65.4°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the trig relations associated with pairs of sides. For angle A, given sides b and c are the adjacent side and the hypotenuse, respectively. The appropriate relation is ...

  Cos = Adjacent/Hypotenuse

  cos(A) = b/c

  A = arccos(b/c) = arccos(2.5/6)

  A ≈ 65.4°

Graph the line with slope 3 passing through the point (4,-5)

Answers

Answer:

here you go (I can not draw a straight line)

Step-by-step explanation:

Find the lateral area. (excluding the 6 x 9 bases)
4 cm
9 cm
6 cm

Answers

Answer: 6 cm

Step-by-step explanation: Hope this help :D

James sees a truck at the dealership for $28,000
base price, $1,300 premium interior, $1,200
navigation touch-screen, and $1,700 smart
traffic sensors. If his current vehicle is worth
$5,000 and he's offered a 60% trade-in rate,
what is the total cost of the car after the $1,000
destination fee?
A. $30,200
B. $21,800
C. $28,200
D. $33,200

Answers

Answer:

The correct answer is C. $28,200.

Step-by-step explanation:

Given that James saw a truck at the dealership for $ 28,000 base price, $ 1,300 premium interior, $ 1,200 navigation touch-screen, and $ 1,700 smart traffic sensors, if his current vehicle is worth $ 5,000 and he's offered a 60% trade-in rate, to determine what is the total cost of the car after the $ 1,000 destination fee, the following calculation must be made:

28,000 + 1,300 + 1,200 + 1,700 - (5,000 x 60/100) = X

32,200 - (5,000 x 0.6) = X

32,200 - 3,000 = X

29,200 = X

29,200 - 1,000 = 28,200

Therefore, the total cost of the car after the $ 1,000 destination fee is $ 28,200.

2965
-9654what the answer​

Answers

is this subtracting? if so the answer is -6689
you ment 2,965- 9,654? The answer is : −6,689

Find the length of XE to the nearest integer

Answers

sin(48°)/ 520 = sin(70°)/ x
x = 657.53019607
-
cos(62°) = x/ 657.53019607
x = 308.69172872
-
XW² + 308.69172872² = 657.53019607
XW = 580.56470385

Which team had about 20% of the wins of the baseball
season?
A) Badgers
B) Stingray
C) Twins
D) Wasps

Answers

The answer would be B
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