Mathematics College

Please, this is an emergency :(, Help me solve for x, y and z

Please, This Is An Emergency :(, Help Me Solve For X, Y And Z

Answers

Answer 1

Given that it is a second-order polynomial equation, the algebraic fundamental theorem ensures that it has at least one solution.

Solve for x, y and z ?

A quadratic equation is a second-order polynomial equation in one variable that goes like this: x ax2 + bx + c=0, where a 0.Given that it is a second-order polynomial equation, the algebraic fundamental theorem ensures that it has at least one solution.Real or complicated solutions are both possible.

Option A , x = 7/5 and x= -1

Formula: Let ax² + bx + c = 0 be the quadratic equation,

x = [-b±√(b²-4ac)]/2a

The given quadratic equation be

5x² -2x = 7

⇒ 5x² -2x - 7 = 0  

a = 5, b = -2 and c = -7

Therefore x = [-b±√(b²-4ac)]/2a

x=[-(-2) ±

√((-2)²-4*5*(-7))]/2*5

x =[2 ± √144)]/10

x =[2 ± 12)]/10

x = (2+12)/10 and x = (2-12)/10

x = 14/10 = 7/5 and x= -12/10 = -1

Therefore,the correct answer is Option A , x = 7/5 and x= -1.

To learn more about quadratic equation refer

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Related Questions

In triangle ABC , M and N are midpoints of sides. If MN = 2x + 5 and BC = x2 − 2, find the possible lengths for MN.
A. 17
B. 6 and 2
C. 1 and 17
D. 2 and 34

Answers

Answer:

A.17

Step-by-step explanation:

The possible lengths for MN are 17 and 1, so the correct answer is C. 1 and 17

How to get the lengths

Since MN = 2x + 5 and BC = x^2 − 2, we can write the equation

[tex]2x + 5 = (1/2)(x^2 - 2)[/tex]

Solving for x, we get:

[tex]2x + 5 = (1/2)(x^2 - 2)[/tex]

[tex]4x + 10 = x^2 - 2[/tex]

0 = [tex]x^2- 4x-12[/tex]

0 = (x - 6)(x + 2)

This equation has two solutions: x = 6 and x = -2.

Substituting these values into the expression for MN, we find that MN can have two possible lengths:

MN = 2(6) + 5 = 17 or

MN = 2(-2) + 5 = 1.

Therefore, the possible lengths for MN are 17 and 1, so the correct answer is 17 and 1.

Read more on  triangle ABC here https://brainly.com/question/21105606

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50 points Type the correct answer I’m the box

Answers

i only see a black image, can you resend the image? or type it out here
There is no question. But the answer always is biggie cheese

Solve for r 5r^2+5=130

Answers

Answer:

Simplifying

5r2 + 5 = 130

Reorder the terms:

5 + 5r2 = 130

Solving

5 + 5r2 = 130

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-5' to each side of the equation.

5 + -5 + 5r2 = 130 + -5

Combine like terms: 5 + -5 = 0

0 + 5r2 = 130 + -5

5r2 = 130 + -5

Combine like terms: 130 + -5 = 125

5r2 = 125

Divide each side by '5'.

r2 = 25

Simplifying

r2 = 25

Take the square root of each side:

r = {-5, 5

One fifths the difference between 2/5 and 1/2

Answers

Answer:

1/50

Step-by-step explanation:

1/2 - 2/5 = 5/10 - 4/10 = (5-4)/10 = 1/10

1/5 * 1/10 = 1/(5*10) = 1/50 = 0.02

Answer:

1/50

Step-by-step explanation:

1/2 - 2/5 = 5

/10 - 4/10 =

1/10 / 5 =

1/50

Hope that helps!

-0.5 how do I write the repeating decimal as a fraction?​

Answers

Answer:

-1/2

Step-by-step explanation:

Marisol buys 3 notebooks that each cost the same amount and 1 calculator that costs $9. The total cost is $21. How much does each notebook cost?

Answers

Answer: 4 dollars for each notebook

Step-by-step explanation:

21-9= 12

12/3=4

each notebooks costs 4 dollars

Answer:

$4

Step-by-step explanation:

pLeAsE HuRrY Lol what’s 1+1=

Answers

There are 2 answers to this question

First Answer:

1+1=2

Second Answer:

Window

Explanation:

1 goes on the top

1 goes on the bottom

The first - of the = goes on the side

The second - of the = goes on the other side

The + sign goes in the middle

Heres a picture example:

I hope this helps you have a good day/night/afternoon

What are the first four terms of the sequence represented by the expression n(n - 2) -3 ?
-5, -2, 1,4
-4,-3,0,5
-3,0,3,6
-2,0,2,4

Answers

Answer:

the first four terms is 3, 0, -3, -6

Which of the following equations represents a nonlinear function?

A.
y = x2 + 5

B.
8x – 4y = 12

C.
y = -4

Answers

B (8x-4y=12) is the answer
B is the correct answer

Can you help me with this question?
Thanks!

Answers

Answer: 11 people like vanilla.

Step-by-step explanation: There are 50 people in this question. Since 22% of them like vanilla, multiply 0.22 and 50. That gives you 11. Therefore, 11 people out of 50 like vanilla.

How many cups of yogurt would 5 people get if they equally shared 3/4 cups of yougurt

Answers

So the short answer is 3/20 cups. When you take 3/4 and turn it into a decimal, .75 then you can easily divide .75 by 5 and you get .15 or 3/20.

Melissa made a school banner that is 3 yards long in a 11 over 12 yards wide what is the area of the banner

Answers

Answer:

2 3/4

Step-by-step explanation:

So area is just base X height

3 X 11/12

2 3/4

Instant brainliest please help.

Answers

35 T Shirts is correct.

35 shirts times $15 is $525.
220 total shirts minus 35 shirts is 185.
185 times $10 a youth shirt is $1850.
$1850+$525=$2375 :)

(BRAINIEST AND 7 POINTS !) One year ago Derek joined a health club. He paid a yearly membership fee of $28 that covered all the club's services except the raquetball
court. Derek paid an additional $7 each time he used the raquetball court. For the entire year at the health club, Derek paid a total of $119.

PART 1: Write an equation to represent the number of times (x) that Derek used the raquetball court.
Equation:

PART 2: Solve the Equation your wrote for part 1.
X=
—————————————
This is worth 60% of my grade ! Please help.


Answers

Answer: 7x+28=119

x=13

Step-by-step explanation:

Answer:

119= 7x + 28

x=13

Step-by-step explanation:

This problem requires an equation. y= mx+ b, where y is your total, mx is your slope, and b is your y intercept. Your total is 119, your yearly fee is 28 ( which is b since it only happens ones), and 7 is x (since x represents each time) So 119=7x+28. Now to solve this we would subtract 28 from both sides and then divide that number by 7. So 119-28 is 91. 91/7 is 13. He used the racketball court 13 times. You can plug 13 to make sure.

119= 7(13) + 28.

Melanie purchases 6 basketballs and 2 volleyballs for $114. A volleyball cost her $3 less than a basketball. How much did each volleyball cost?

Answers

Answer:

a volleyball is $16.5

Step-by-step explanation:

6b+2v= 114

v=b-3

6b+2(b-3)= 114

6b + 2b - 6

8b - 6 = 114

8b = 108

b= 13.5

substitute b in

6(13.5) + 2v = 114

81 + 2v = 114

2v = 33

v= 16.5

if I play rock paper scissors what is the probability of my friend will not throw paper​

Answers

Answer:

2/3 chance

Step-by-step explanation:

3 different things they could do, 1 is paper.

3-1=2

1/3 possibility of your friend not throwing paper. Rock Paper Scissors shoot!

PLEASE ANSWER ASAP FOR BRAINLEST WITH WORK!!!!!!!!!!!!!!!!!!!!!!
here are some screenshots to help figure out the area of the figure!
thank you in advance!
btw im giving out 100 points and a brainlest so make sure to answer correctly.

Answers

Answer:

10

Step-by-step explanation:

I found the anser by multiplying 5 * 4 = 20, and then multiplying 2 * 2 = 4, then 3 * 2 = 6. Next you add 6 and 4, which equals 10. Finally you subtract 10 from 20 to find your answer of ten.

Hope this helps

What additional information would be enough to prove
the triangles are similar? Choose all that apply:

A. ZH ZE

B. EF bisects LHFG

C.ZG = ZH

Answers

Ahh this is a good hard question hopefully someone comes along and helps you out with it. Goodluck my friend!

PLs help me I will give brainliest please dont answer if you don’t know

Answers

Answer:

Interest earned will be $1,118.00

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 6500 x .043 x 4

Katniss and Peeta find the sum of their ages which is 50 years. Peeta is five years older than Katniss. What are their ages?

Answers

Answer:

peeta is 30 and kat is 20 i think

Step-by-step explanation:

3. Solve for x.
(x-2)(x+ 8) = 0

Answers

Answer:

x = 2, x = -8

Step-by-step explanation:

Since the equation equals 0, you know either (x-2) or (x+8) has to equal 0.

This means x = 2, and x = -8

Hope this helps!

a bag contains 10 white,4 red, 3 blacK balls find the fraction of a) white bal b) blac ball c) red balls

Answers

Answer:

white=10/17

red=4/17

black=3/17

hope it helps you

please mark me as brainlist

Consider a bag with 5 green marbles, 3 blue marbles, and 2 red marbles. If two marbles are drawn without replacement what is the probability that they are both blue?

A) .055556
B) .066667
C) .077778
D) .088889

Answers

.b




I THINK I’m pretty sure

Find the value of xxx in the triangle shown below

Answers

THIS ANSWER WAS DELTED FROM  BRAINLY

Question: Find the value of xxx in the triangle shown below

Answer: Pg.21607062  

Brainly.com

2-19-21

Answer:

x = 70

Step-by-step explanation:

At the end of a year, the gross debt of a country stood at about $17 trillion. Express this amount
dollars per person, assuming that the population of the country is about 303 million
The gross debt is about $ per person
(Type a whole number. Round to the nearest hundred as needed.

Answers

56,105.61 is the answer rounded to the nearest hundred

Answer:

Your answer

56100 per person

Mark it as Brainlist answer. Follow me to get more answer

Step-by-step explanation:

HELPPPPPP MEEEE PLEASE AND THANK YOU ILL MARK YOU BRAINLIEST

Answers

It is ABE and ABD the 1st and 3rd one


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

y = 1x - 5

Step-by-step explanation:

y=1x-5 is the correct answer

enter a negative number that is greater than -10.


btw this is iready

Answers

Answer:

5 6 7 8 9 10  All the positive number are grater than -10 but if it askes for negative you would you -5 -6 -7 -8 -9

Step-by-step explanation:

With all numbers, whether they are negative, zero or positive: A number is greater than another when it is to the right on the number line. Conversely a number is less than another when it is to the left on the number line.

Step-by-step explanation:

Hey guys I need help with this question. Solve the system by substitution: x=-1 and 4x+2y=16

Answers

4(-1) + 2y = 16
-4 + 2y = 16
2y = 20
y = 10

I think this is how u do it..
4x + 2y = 16
4(-1) + 2y = 16
-4 + 2y = 16
+4 +4
2y = 20
/2 /2
y = 10

Solve the image, and you get points.

Answers

The 3rd one is equivalent
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