find all solutions (x,y) of the given system, where x and y are real numbers.
xy=8
y=-x^2

Answers

Answer 1
Answer:  (x, y) = (-2, -4)

Work Shown:

xy = 8

x(-x^2) = 8

-x^3 = 8

x^3 = -8

x = cube root of -8

x = -2

y = -x^2

y = -(-2)^2

y = -4

You can use a graphing tool like Desmos or GeoGebra to plot the two curves. Notice they intersect at (-2,-4) to confirm the answer. See the diagram below.

Find All Solutions (x,y) Of The Given System, Where X And Y Are Real Numbers. Xy=8 Y=-x^2

Related Questions

Rename 5/12 and 7/8 using the least common denominator

Answers

Answer:

10/24 and 21/24

Step-by-step explanation:

So the least number that both 12 and 8 will divide into is 24

so 5x2/24 and 7x3/24 so the fractions are 10/24 and 21/24

Answer:

10/24 and 21/24

Step-by-step explanation:

answers for plato test

Use Guauss-jordan elimination to solve the following linear system.
5x - 2y = -2
-x + 4y = 4

Answers

Answer:

wdym

Step-by-step explanation:

Question 12
Find the volume of this cone. Round to the nearest hundredth.
9 ft
8 ft
cm cubed

Answers

Answer:

150.8 I think

Step-by-step explanation:

Estimate 12.59 _ 7.68 to the nearest whole number​

Answers

Answer:

13_8

Step-by-step explanation:

if the first number in the decimal is 5 or up then you round up if its 4 or less you round down meaning it would be 13 and 8

A recipe for oatmeal which serves 4 people uses 3 cups of rolled oats.
How many cups of rolled oats will be used for oatmeal which serves 6 people?
O A. 2 cups
OB. 2 cups
Oc. 4 41
cups
D. 5 cups
o
E. 8 cups

Answers

The 4.5 or 4 whole number 1/2 cups of rolled oats will be used for oatmeal which serves 6 people option (C) is correct.

What is a fraction?

Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:

A recipe for oatmeal that serves 4 people uses 3 cups of rolled oats.

Let's suppose the x number of cups will be used to serve 6 people.

Mathematically,

4 people use 3 cups

6 people use x cups. then:

[tex]\frac{4}{6} =\frac{3}{x}[/tex]

4x = 6×3  (after cross multiplication)

4x = 18

x = 4.5   (divide by 4 on both sides)

[tex]\rm x=4\frac{1}{2}[/tex]

Thus, the 4.5 or 4 whole number 1/2 cups of rolled oats will be used for oatmeal which serves 6 people option (C) is correct.

Learn more about the fraction here:

brainly.com/question/1301963

A high-school administrator who is concerned about the amount of sleep the students in his district are getting selects a random sample of 14 seniors in his district and asks them how many hours of sleep they get on a typical school night. He then uses school records to determine the most recent grade-point average (GPA) for each student. Here is the regression output. Assume the conditions for inference are met. 1.

Predictor Coef SE Coef T P
Constant 2.6476 0.3281 8.07 0.000
Sleep 0.10176 0.04347 **** *****

S = 0.1804
R-Sq = 31.3%
R-Sq(adj) = 25.6%

Required:
Predict the GPA for a senior in this district who gets 8 hours of sleep on a typical school night.

Answers

Answer:

3.46

Step-by-step explanation:

Given the regression output :

Predictor Coef ___SE __ Coef __ T ___ P

Constant 2.6476_0.3281_ 8.07 0.000

Sleep 0.10176 0.04347 **** *****

S = 0.1804

R-Sq = 31.3%

R-Sq(adj) = 25.6%

The regression equation which models the relationship between hours of sleep a student gets and his GPA can be obtained from the regression output :

The GPA is the dependent, y variable

Hours of sleep is the independent, x variable

y = 0.10176x + 2.6476

Hence, the GPA of a student who gets 8 hours of sleep on a typical school can be computed thus ;

Hours of sleep, x = 8

y = 0.10176(8) + 2.6476

y = 0.81408 + 2.6476

y = 3.46168

Thus, predicted GPA = 3.46

someone please help me answer this!!

Answers

Answer:

b = 21 ft is the answer.

Step-by-step explanation:

a = 28 ft

b = ?

c = 35 ft

According to the Pythagoras theorem,

a² + b² = c²

28² + b² = 35²

784 + b² = 1225

b² = 1225 - 784

b² = 441

b = 21 ft

∴ b = 21 ft is the length of the missing leg.

what is the measurements of the circle?​

Answers

Answer:

xw= 60°

ym=60°

mw=120°

Step-by-step explanation:

Angles on a straight line add up to 180°. Therefore 180-78+42°=60°

Opposite angles are equal. Therefore 60°=60°

Angles in a circle = 360° Therefore 78°+42°+60°+60°+120°=360°

A car salesperson sells cars at prices ranging from $5,000 to $45,000. The histogram shows the distribution of the numbers of cars he expects to sell over the next 10 years.



The median car price is
. The distribution exhibits
.

Answers

Answer:

B. $25000

C. Symmetry

Step-by-step explanation:

Hope this helps

please help! Thank you :) also don't spam for points I know a moderator

Answers

Answer:

1) True

2) False

3) True

4) True

5) False

Helppppp!!!!!!!!! Plz

Answers

The answer is 22. You would subtract 3.5 from both sides, then x=22z

What percentage of births occur after day 12?

Answers

Answer:

the answer is 20% so good luck

Subtract and simplify your answer.
7/18-2/9

Answers

Answer:

Step-by-step explanation:

7/18-2/9=7/18-4/18=3/18=1/6

Answer:

1/6.

Step-by-step explanation:

7/18−2/9=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(7/18, 2/9) = 18

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(7/18×11)−(2/9×22)=?

Complete the multiplication and the equation becomes

7/18−4/18=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

7−4/18=3/18

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 3 and 18 using

GCF(3,18) = 3

3÷3/18÷3=1/6

Therefore:

7/18−2/9=1/6

the picture has the question

Answers

The Last One
CD has a diameter of F

The diameter of a circle is 2 feet. What is the circle's area?

Answers

A=pi•r•r
A=3.1415•1•1

A=3.1415

Pls help me complete this

Answers

Answer: 1/10, 3/20, 1/4, 1/5, 3/10

Step-by-step explanation: So first, you need to find the total number of times Leon spins the spinner, which is 20. You get 20 by counting the total number of x's there are.

Then you need to find the number of times each number got landed on. In order, it would be 2/20, 3/20, 5/20, 4/20, and 6/20.

Next, you have to simplify them. 2/20 simplified is 1/10, then 3/20 can't be simplified, so leave it like that, 5/20 would be 1/4, 4/20 would be 1/5, and finally, 6/20 would be 3/10.

hey guys help pls!!!

Answers

Answer:

B

Step-by-step explanation:

I drew it out and triangle b is correct

what is the poem Caged Bird about?​

Answers

the poem theoretically about a bird who wanted to live freely. he had a family; a mom, a dad, a brother, a sister. they just wanted to fly around and have fun and explore. but then all of a sudden the brother got eating buy mr. purple man. they all had to run. but then the sister got raped by mr. brown.

Find the 12th term of the geometric sequence 9, 27, 81, ...

Answers

Answer:

177,147 is the 12th term

Step-by-step explanation:

multiply each term by 3

1, 3, 9, 27, 81, 249, 729, 2,187, 6,561, 19,683, 59,049, 177,147

list from 1st  to 12th term...

ty.

In the small town of Middleton, there are only two restaurants that serve pizza- a small family owned Italian restaurant and a new franchise pizza restaurant. In a recent review of the franchise, a food critic reported that the pizza was delicious as promised. The only negative review that the franchise received from the critic was in reference to the inaccurate delivery time quoted during the online order process. In response to the article, the franchise owner used a program to analyze the online pizza orders that took place during the week before the review. He chose to track the orders at 6pm each day. He recorded his results in the frequency table below. Monday Tuesday Wednesday Thursday Friday On Time ||| || Late | ||| |||| Use the frequency table to create a box and whisker plot of the On Time data values. In your final answer, include all calculations necessary to create the box and whisker plot. Use the frequency table to create a box and whisker plot of the Late data values. In your final answer, include all calculations necessary to create the box and whisker plot.

Answers

Step-by-step explanation:

1.

Yes , the data franchise owner is collecting, will be helpful in order to counter the criticism from the critic. As he has a record for every delivery they are making on daily basis.

2.

The scenario is that for every fifth customer , the owner cross the four lines he makes. Thus a pack of five and easy to remember. As the data on regular week days is less, As can do the same for the third customer. Crossing the 2 lines for 3rd customer.

3.

With this provision of crossing the third customer, the owner can have a better check on the late delivery. As it will bring in his notice earlier as compared to fifth crossing.

4.

With the data as provided in the table, we can come to the conclusion that on weekends , i.e. both on time delivery and late deliveries are high in numbers. It must be because of high demand on that days. So owner must make some provision like hiring some more delivery boys for weekend in order to reduce the late deliveries.

Answer:

Can I get brainliest please??

Step-by-step explanation:

Combine the like terms to create an equivalent expression.
and please only use the signs what I gave you in the screen shot thank you

Answers

Answer: 6k+19

Step-by-step explanation:

Like terms are terms with the same variables and powers. Since k is the variable in 7k and k, we have to do 7k-k=6k. Then because 19 isn’t a like term to 6k we just leave it. So the answer is 6k+19.

Hope this helps :)

72 in long and 9 in wide and 6in tall if one of the sandboxes contains 425 cubic in how many bag should she buy

Answers

Answer:

https://concalculator.com/sand-calculator/

Step-by-step explanation:

thats the link to  the answer

There are 135 students going on a field trip. Each school bus holds 40 students. How many buses are needed?​

Answers

Answer

4

Step-by-step explanation:

135/40=3.37 so 4 buses are needed

Answer:

4 busses are needed. Well 135 students going on a field trip and each bus holds 40 students. There can’t be “half” a bus but instead you can have a bus thats not all the way filled. Plus youc an’t duplicate or divide the a light of children so 4 busses.

Step-by-step explanation:

40x ≥ 135

Solve that and the answer has to be a whole number greater then the proposed decimal.

135/40= 3.375

3.375 and it can’t be rounded down and only up to the nearest whole digit so round it to 4.

4 busses.

An expression is shown.

​ 6 n

​What is the value of the expression when n=7?

Answers

Answer:

42

Explanation:

replace n by 7 since they are equal and therefore the same thing

so 6*7=42

marks lawn care company charges a flat fee of $15, plus $9 per half hour for every job. which equation can be used to find the amount Y that marks lawn care company would charge for a lawn job that takes X hours to complete?
A. Y=15x+18
B. Y=18x+15
C. Y=15x+9
D. Y=9x+15

Answers

Answer:

y= 18x + 15

Step-by-step explanation:

If its 9 dollars per hour than it would be 18 per hour. The independent variable is the how long itll take, and the 15 would be without starting. So it results into B) y=18x+15

Answer:

D. (Y=9x+15)

Step-by-step explanation:

This one was pretty easy to find out using common sense, it can be solved via knowing that the only variable being multiplied is 9, so find 9x+15 and there is your answer.

What is the answer please help me no links no links

Answers

I think it’s 32
Hope that helped XD

Determine the probability of having 2 girls and 3 boys in a 5-child family assuming boys and girls are equally likely.

Answers

The correct answer is 5/16.

The probability of having 2 girls and 3 boys in a 5-child family is 5/16

What is Probability ?

Probability is the likeliness of an event to happen .

Total Probability of having 5 kids as boy or girl is 2⁵ = 32

The probability that there is 3 boys in the 5 children and remaining two are girls

[tex]\rm ^5C_3[/tex]

= (5*4*3*2*1)/(2*1)(3.2.1)

= 10 ways

probability of having 2 girls and 3 boys in a 5-child family is

=10/32

= 5/16

Therefore ,  the probability of having 2 girls and 3 boys in a 5-child family is 5/16

To know more about Probability

https://brainly.com/question/11234923

#SPJ2

ORDER THE SIDE LENGTHS FROM LEAST TO GREATEST


help pls asap

Answers

Answer:

m<K, m<J, m<I

Step-by-step explanation:

The size of angles and sides correspond. The larger the side, the larger the angle must be. So, this means the largest angle will be directly across from the longest side. Since <K is across from the smallest side, it is the smallest angle. Additionally, <I is across from the longest side so it is the largest.

Need help alegbra!!! Look at photo for question!!

Answers

Answer:

i don't know

Step-by-step explanation:

What’s the answer and work for this? Someone please tell me

Answers

Answer:

69

because you put them in order least to greatest (or greatest to least)

55, 58, 62, 63, 68, 70, 71, 79, 81, 82

there are 10 numbers total

the two middle numbers are

68 and 70

the number in between is 69

Step-by-step explanation:

median= middle number.

where there is an even amount of numbers, you find the number in between the middle two numbers when in order.

(this can be found by adding the two numbers together and then dividing by 2)

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