What is the value of x^2+y^2 given the following system?
x+y=10
x-y=8

Answers

Answer 1

Answer:

I hope this helps, you can ask any questions for clarification

What Is The Value Of X^2+y^2 Given The Following System?x+y=10x-y=8

Related Questions

Solve this on your own and find the unit rate of miles per hour.

Answers

150mi/5hr =30 mi/hr so the answer is 30 mi/hr

How much paper is needed to make a cone with a radius of 6cm, a height of 8cm, and a slant height of 10cm?

Answers

[tex]\sf\large\underline{\star Given:-}[/tex]

[tex]\rightarrow[/tex] Radius(r) of cone = [tex]\sf\pink{6cm.}[/tex]

[tex]\rightarrow[/tex] Height(h) of Cone = [tex]\sf\pink{8cm.}[/tex]

[tex]\rightarrow[/tex] Slant height(l) of cone = [tex]\sf\pink{10cm}[/tex]

[tex]\sf\large\underline{\star To \: Find:-}[/tex]

[tex]\rightarrow[/tex] Length of paper needed to make a cone with above given dimensions (i.e, curved surface area of cone).

[tex]\sf\large\underline{\star Solution:-}[/tex]

[tex]\rightarrow[/tex] As we know that,

Curved surface area of cone = [tex]\sf\blue{πrl}[/tex]

On substituting the value of radius(r) and slant height(l) in this formula we get,

[tex]\rightarrow[/tex] [tex]\sf{=\: \frac{22}{7}×6×10}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{=\: \frac{22}{7}×60}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{=\: \frac{1320}{7}}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{=\: 188.57 cm^2.}[/tex]

Therefore, [tex]\sf\purple{188.57cm^2}[/tex] paper is needed to make a cone of given dimensions.

_____________________________

Hope it helps:)

Step-by-step explanation:

Given:-

Radius of cone :- 6cmHeight of cone :- 8cmSlant height of cone :- 10 cm

To find :-

How much paper is needed to make a cone

Concept :-

We need to find the Curved surface area of cone to find the amount of paper needed to make the cone of given dimensions.

Solution :-

As we know ,

the formula for finding the curved surface area of cone :- πrl

putting the known values ,

CSA :- 3.14 × 6 × 10 cm²

CSA of cone :- 188.4 cm²

This is a picture of a cube and the net for the cube.
What is the surface area of the cube?

Answers

Answer:

6a²

Step-by-step explanation:

6×5² = 6×25 = 150cm²

thank you

Answer:

150 centimeters cubed

Step-by-step explanation:

[tex]6x2^2= 150[/tex]

I’m in need of help

Answers

Answer: 196 degrees

Step-by-step explanation:

Mike invests $4000 in an account that earns 3% annual interest. How much money will there be in the account after 3 years if the interest is compounded semi-annually?

Answers

Answer:

$4786.72

Step-by-step explanation:

4000(1+0.03/6)^12(3)

Use this formula to find the compounded interest after each 6 months, which would have an interest rate used to increase the amount of money.

solve using completing the square method

Answers

Answer:

x=3.48 or -1.98

Step-by-step explanation:

2x^2-3x-8=0

x^2-1.5x-4=0

(x-0.75)^2=0

x^2-1.5x-0.5625=0

(x-0.75)^2-7.4375=0

(x-0.75)=√(7.4375)

x=0.75±√(7.4375)

x=3.48 or -1.98

Determine the value of the angle.

Angle ADF=

Answers

Answer:

90 degree

Step-by-step explanation:

we can see that angle adf is a right angle which means it's value is 90 degree

Can someone please help

Answers

Ahhh, the graph! Such an interesting thing. I think I can help you...

The answer is B - (3, -4).

My explanation is this.

In an ordered pair (like the one I just mentioned), the x value and the y value are represented like so: (x, y.)

If you start from the middle of the graph, where the points intersect, if you count three lines over on the horizontal line, that's your x value. 3.

But for the y, since we're counting down on the vertical line, not up, we'll have a -4 instead of a positive.

Therefore the answer (3, -4)

I hope this answers your question.

-Toremi

It's not really a specific question, but can someone pleeeeease explain how to do constant of proportionalities from tables! I've watched the khan videos on it, but it's just not clicking for me. Please help!

Answers

Answer:

by looking in the copy and learning the tips or step how to do it

Answer:

For example, we could use y = price in dollars, x = gas in gallons, and a constant of proportionality k to represent the amount of money you have to pay at the gas station y = kx. In other words, the price you pay is in direct proportion to the gallons pumped.

Step-by-step explanation:

Hope this helped you understand it better

~Heaven~


y=4x-1+
y = 3x +7

i don’t know how to do this and i need steps on how

Answers

Answer and working out are linked below, hope it helps //// y = 31, x = 8

Devaughn is 6 years older than Sydney. The sum of their ages is 80. What is Sydney's age?

Answers

Answer:

37 and 43

Step-by-step explanation:

There are some ways to do this, but this is what I like to do. First, since there are 2 people, I divide 80 by 2, which is 40. Now I add 3 to one person and subtract 3 from one person, because the age difference is 6 years, and there are two people (if you divide them you get 3). Now you get the answer; 37 and 43.

Use the point-slope form of a line to write the equation of
a line that has a slope of 2 and passes through the point
(4,3). Write the equation in slope-intercept form.

Answers

Answer:

y=2x-5

Step-by-step explanation:

Hi there!

We are given that a line has a slope of 2, and passes through the point (4,3)

We want to use point-slope form to find this equation of the line, yet we want to write this in slope-intercept form

Point-slope form is given as [tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1, y_1)[/tex] is a point

As we are already given the slope and a point, we can substitute these values into the formula to find the line.

First, substitute 2 as m in the equation:

[tex]y-y_1=2(x-x_1)[/tex]

Now substitute 4 as [tex]x_1[/tex] and 3 as [tex]y_1[/tex]

[tex]y-3=2(x-4)[/tex]

This is the equation of the line in point-slope form.

Now we need to write it in slope-intercept form

Slope-intercept form is given as y=mx+b, where m is the slope and b is the y intercept

We can actually get to slope-intercept form from point-slope form.

First, distribute 2 to both x and -4 on the right side

y-3=2x-8

Now add 3 to both sides

y=2x-5

Hope this helps!

chris took a spelling quiz last week.she got 12 out of 16 problems correct.what percentage did chris get correct

Answers

Answer:

Chris got 75% correct.

Step-by-step explanation:

[tex]\frac{12}{16}[/tex] x 100 = 75

So, the percentage chris got correct is 75%

Answer:

He got 75% correct

Step-by-step explanation:

you can do it like this:

[tex]\frac{12}{16}[/tex] × 100 = 3× 25= 75%

Hope you understood and it helped!!

x² + 5x + 6
Factor each polynomial.

Answers

Sum = 5
Product = 6
Factors = 2,3
When we multiply 2 *3, we get 6 and when we add 2+3, we get 5
x^2 + 5x + 6 = x^2 + 3x + 2x + 6
= x(x + 3) + 2(x + 3)
= (x + 3) (x + 2)
(x+2)(x+3) is gonna be your answer

Mrs. Mueller writes an inequality on the board. The table shows the responses of six students for possible values of x.



Which students have correct responses to Mrs. Mueller's inequality?

Select ALL that apply.

Answers

Answer:

Maya, Pablo

Step-by-step explanation:

We solve the inequality to find how big x must be to fit the inequality.

[tex]\frac{3}{5}x > 6\\ x > 10[/tex]

Since x has to be greater than 10, anyone with an answer above that is correct.

Maya and Pablo are the only two.

i need help!!! please help me

Answers

Answer:

2nd and 4th option

Step-by-step explanation:

The equivalent expression is,

⇒ 4 (5 - 2d)

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The expression is,

⇒ 20 - 8d

Now, We can simplify the expression as;

⇒ 20 - 8d

⇒ 4 x 5 - 4 x 2d

⇒ 4 (5 - 2d)

Thus, The equivalent expression is,

⇒ 4 (5 - 2d)

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ7

h circles have the same center. What is the area of the shaded region?
d=19.6 mm
17.4 mm
Use 3.14 for ​. Write your answer as a whole number or a decimal rounded to the nearest hundredth.

Answers

Answer:

the answer is 725.71

Step-by-step explanation:

Marco picked 8 1/2
pounds of apples at an orchard last weekend. He used
1/4
of the apples to make a pie for a party. Then, he used 3 1/8
pounds of apples to make applesauce. How many pounds of apples does Marco have left?

Answers

Answer:

3 1/4 pounds

Step-by-step explanation:

Marco starts with 8 1/2 pounds, to make things easier rewrite it as 8.5.

He uses 1/4 (or .25) of the apples. 8.5 * .25 = 2.125. Subtract this 2.125 from the 8.5 since it's what's being used. 8.5 - 2.125 = 6.375

Then he uses 3 1/8 (or 3.125) pounds. Subtract 3.125 from the 6.375 we got previously to get 3.25.

Marco has 3.25 pounds left which can be rewritten as 3 1/4 pounds.

4+3÷3(67)-5×8
What is the answer

Answers

The answer is: -35.98507463

A teacher is 15 y.o. older than her student. In 15 years, the ratio of their ages will be 3:2. Find their present ages​

Answers

student:: 15 years
teacher:: 30 years

Answer:

teacher's age: 30

student's age: 15

Step-by-step explanation:

T = 15 + S

from above,

(T+15)/(s+15) = 3/2

by substitution,

(15+S +15)/(S+15) = 3/2

cross multiply,

2(S+30) = 3(S+15)

2S + 60 = 3S + 45

60 = S + 45

s = 15

T = 30

Hello people ~
factorise : 3x² + 10x + 8​

Answers

Answer:

(x + 2)(3x + 4)

Step-by-step explanation:

3x² + 10x + 8

consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 3 × 8 = 24 and sum = + 10

the factors are + 6 and + 4

use these factors to split the x- term

3x² + 6x + 4x + 8 ( factor first/second and third/fourth terms )

= 3x(x + 2) + 4(x + 2) ← factor out (x + 2) from each term

= (x + 2)(3x + 4) ← in factored form

[tex]\\ \rm\Rrightarrow 3x^2+10x+8[/tex]

[tex]\\ \rm\Rrightarrow 3x^2+6x+4x+8[/tex]

[tex]\\ \rm\Rrightarrow 3x(x+2)+4(x+2)[/tex]

[tex]\\ \rm\Rrightarrow (3x+4)(x+2)[/tex]

Done!

Please help Will give BRAINLIEST !!! :)

Answers

Answer:

D no. is for sure another I also don't know. So sorry.......

Two concentric circles are of radii 10 cm and 8 cm, then the length of the chord of the larger circle which touches the smaller circle is​

Answers

Answer:

12 cm

Step-by-step explanation:

Let O be the centre of the circle of radii 10 cm and 8 cm.

In given figure,

AP = PB and OP⊥AB

Applying Pythagoras theorem in ∆OPA, we get

↠ OA² = OP² + AP²

↠ (10)² = (8)² + AP²

↠ 100 = 64 + AP²

↠ 100 - 64 = AP²

↠ 36 = AP²

↠ √36 = AP

6 = AP

Now,

↠ AB = 2AP

↠ AB = 2(6)

↠ AB = 12 cm

Hence,

The length of the chord of the larger circle 12 cm

In a class of 10 students, what is the mean and standard deviation of the number with 20-20 vision in the class

Answers

The mean is 6 and the standard deviation is 6

0.6 litres in the ratio 7:5

Answers

Can you Elaborate your question?

Who is correct Jared or Jim?

Answers

Answer:

  b) Jim

Step-by-step explanation:

Given the angle measures lf Jared's triangle, Jim can draw one that is similar. However he cannot draw one that is congruent without knowing the measure of at least one side.

__

Jim is correct that he needs more information.

Which statute generates statistical data that is generally cited to support findings.

Answers

The statute generates statistical data that is generally cited to support findings is the Truth in Lending Act.

What is statistical data?

It should be noted that a statistical data simply means factual information that are recorded for analysis purpose.

In this case, the statute generates statistical data that is generally cited to support findings is the Truth in Lending Act. It helps protect unfair credit billing and card practices.

Learn more about statistics on:

https://brainly.com/question/15525560

Calculate the perimeter of the figure

Answers

The answer is 46 because when you add all the numbers up you get 46

Answer:

76

Step-by-step explanation:

4+4+4+4+4+4+8+8+18+18 = 76

The diameter of a semicircle is 30 miles. What is the semicircles radius ?

Answers

Answer:

D by 2 means 30 divides 2 frst of all youuhave to find radius after that semi circle

1. Simplify the radical V3c^2/v27​

Answers

Hi! To solve this problem, your first step is to:            

                                c2

              Simplify   ———

                               v27

The Equation is at the end of step 1:        c2

                                                        (v3) • ———

                                                                   v27

Now STEP 2:

Dividing exponential expressions : 

2.1    v3 divided by v27 = v(3 - 27) = v(-24) = 1/v24

After we done this, your Final result is:      c2

                                                                   ———

                                                                     v24

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