one number is three less than twice another . the sum of their square is 117 . find the numbers.​

Answers

Answer 1

Answer:

-10.2 and -7.2

6 and 9

Step-by-step explanation:

Let the numbers be x and y.

x² + y² = 117

y = 2x - 3

x² + (2x - 3)² = 117

x² + 4x² - 12x + 9 = 117

5x² - 12x - 108 = 0

(5x + 18)(x - 6) = 0

5x + 18 = 0  or x - 6 = 0

x = -18/5 or x = 6

x = -3.6 or x = 6

y = 2x - 3

y = 2(-3.6) - 3

y = -10.2

y = 2x - 3

y = 2(6) - 3

y = 9

Answer:

-3.6 and -10.2

6 and 9


Related Questions

The coordinates of a rectangle are (-11,20), (-11,3), (-1,20), (-1,-3). Find the perimeter and the area of the rectangle.

Answers

Answer:

The perimeter of the rectangle is 54, and the area is 170.

Step-by-step explanation:

First, we must plug the coordinates into a graph (attached below).

[tex]l=10\\w=17[/tex]

Now, we must solve for the perimeter.

[tex]P=2(l+w)\\P=2(10+17)\\P=2*27\\P=54[/tex]

Lastly, we must solve for the area.

[tex]A=wl\\A=(17)(10)\\A=17*10\\A=170[/tex]

You're welcome!

A store owner asks each person to write “Yes” or “No” on a slip of paper as they leave, secretly writing down whether they were happy with their experience. At the end of the day, the owner selects 12 slips at random and looks at them.

These were the results:
yes, yes, yes, no, yes, no, yes, yes, no, yes, no, yes

a. Estimate the proportion of all shoppers who were happy with their experience that day.

Answers

Answer:

2/3

Step-by-step explanation:

Probability=number of favourable outcomes/number of possible outcomes

P(customers who were happy with their experience)= 8/12 = 2/3

two-third of total customers (12 people) were happy with their experiences.

hi pls help it’s pretty simple i think

Answers

Answer:

The radicals is the name of the sign we use in roots. The numerator is the power of the exponential, and the denominator is the power of the root.

So we take the radical:

√((-4)^2/7)

And move the denominator to the place where we list the root's power:

7√((-4)2)

Do note you can remove the outermost parentheses if you were to extent the radical's top line, something like so:

_____

7√(-4)2

[tex]the \: answwr \: is \: 1.48 \: or \\ 7 \sqrt{( - 4) {}^{2} } [/tex]

# be careful #

what is x

x/2 = (8 - 2x)/4

Answers

Answer:

x = 2

Step-by-step explanation:

x*(4) = (8-2x)*(2)

4x = -4x+16

+4x    +4x

8x = 16

x = 2

Answer:

x = 2

Step-by-step explanation:

Multiply to remove the fraction, then set equal to 0 and solve.

The following rectangle has area 16.4icm² and length 8.207cm. Work out its width, xcm. Area = 16.41 cm x cm 8.207cm​

Answers

I’m a little confused by the question at the end, but from the first two sentences, I think I’ve got it. If not, leave a comment and I can help further. So to find the width of this rectangle, you only need to divide the area by the length. As to find the area, it’s length x width. Kind of like the width is x and you are trying to get w separate from 8.207. (16.4)/(8.207). This comes out to be 1.99829414 cm. Hope this helps!

Solve each system of equations using the elimination method

4x-y=-2
2x+y=2

Answers

x = 0

y = 2

Step-by-step explanation:

4x - y = -2

2x + y = 2

-------------- add the equations

6x = 0

x = 0

substitute x in equation 1

0 - y = -2

y = 2

17. Hayden earns $ 9.50 per as a lifeguard . He earns a bonus of $50.00 For taking a training
course. How many hours must he work to earn at least $300.00
Variable:
Inequality

Answers

Answer:

26.32

Step-by-step explanation:

50 + 9.5x = 300

9.5x = 250

x = 26.32

Have a good day!

show the linear graph obtained by joining the following points is a staright line. (6,-3),(6,1)and(6,6)

Answers

Points be

A(6,-3)B(6,1)C(6,6)

Slope of AB:-

[tex]\\ \tt\hookrightarrow m=\dfrac{1+3}{6-6}=\dfrac{4}{0}=\infty[/tex]

Slope of BC

[tex]\\ \tt\hookrightarrow m=\dfrac{6-1}{0}=\infty[/tex]

As

Slope of AB=Slope of BC

A,B,C are colinear.

PLEASE HELP ME!!

A line has this equation: 5y+x=-40
Write an equation for the perpendicular line that passes through the point (1, 10)

Answers

Answer:

look it up go to demos

Step-by-step explanation:

A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them. The members of the choir decided to order from a printing company that charged $3 per shirt, plus a $50 flat fee for shipping. If the school spends $113 total, how many T-shirts did they buy?

Answers

Answer:

21

Step-by-step explanation:

Let x = number of t-shirts

Let y = total cost

If the company charges $3 per shirt, plus a $50 flat fee for shipping:

⇒ y = 50 + 3x

If the school spends $113 total, subtitute y = 113 and solve for x:

⇒ 113 = 50 + 3x

⇒ 113 - 50 = 3x

⇒ 63 = 3x

⇒ x = 63 ÷ 3

⇒ x = 21

Therefore, the choir bought 21 t-shirts

Solution:

Note that:

Equation created: 50 + 3(Shirts) = $113

Solve the equation to find out how many shirts did the school choir bought.

=> 50 + 3x = $113=> 3x = 113 - 50=> 3x = 63=> x = 21

The school choir bought 21 shirts.

Solve for x. The problem is in the picture!

Answers

Question:- Solve for X

Given:-

According to the diagram:-

Angle D = (6x+ 8)°Angle E = (5X+8)°Exterior angle C = 82°

Answer:-

Exterior angle property:-

Exterior angle is equal to the sum of two opposite interior angle

ATQ :-

[tex] \angle D + \angle \: E = ext \angle C \\ 6x + 8 + 5x + 8 = 82 \\ 11x + 16 = 82 \\ 11x = 82 - 16 \\ 11x = 66 \\ x = \frac{66}{11} \\ x = \frac{ \cancel{66}^{ \: \: 6} }{ \cancel{11} } \\ x = 6[/tex]

The value of x from the figure is 6

Angles of a triangle

The sum of the interior angles of a triangle is equal to its exterior

Acording to the figure shown;

6x + 8 + 5x + 8 = 82

11x = 82 - 16

11x = 66

Divide both sides by 11

111x/11 = 66/11

x = 6

Hence the value of x from the figure is 6

Learn more on angles of a triangle here: https://brainly.com/question/25215131

I need answers for those asap

Answers

Answer: x = -5 and y = -5

Step-by-step explanation:

They drew the linear graph for the simultaneous equations on the graph already

The answer the the equations is the intersection of the lines which is (-5,-5) or x = -5 and y = -5

Need answer as soon as possible

Answers

Answer:

adding all like terms the answer will be:

[tex]\frac{3}{8} x + \frac{1}{2} y + \frac{3}{8}[/tex]

Step-by-step explanation:

Answer:

sec answer

[tex] \frac{3}{8} x + \frac{1}{2} y + \frac{3}{8} [/tex]

The amount of region enclosed by a plane closed figure is calles

Answers

Answer:

The amount of region enclosed by a plane-closed figure is called its Area. Hence, correct answer is Area.

FROM

SURAJ SAINI

Which of the statements about the following quadratic equation is true? 6x2 - 8 = 4x2 7x.

Answers

Answer:

2(−2x^28+3x^2−4)=0

Step-by-step explanation:

this is your answer factored. but i will you the real answer after you tell me all the other options

Answer:

Step-by-step explanation:

HELP ILL GIVE YOU BRAINLIEST
Determine the absolute maximum value of the function f.

Answers

Answer: I think 7

Step-by-step explanation:

Find the volume of a sphere with a radius of x – 1.

Answers

-2.52 this is the answer because y=md+b

help me with this math pls

Answers

If you’re trying to find one phases area then 20 x 6.5 if you are trying to find the whole figures area it’s 4(20x6.5)

someone pls help me..

Answers

Answer:

[tex]32x^2 \sqrt[3]{2x} - 8x^3[/tex]

Step-by-step explanation:

[tex]\hookrightarrow 4x\sqrt[3]{4x^2}\left(2\sqrt[3]{32x^2}-x^3\sqrt{2x}\right)[/tex]

[tex]\hookrightarrow 8x\sqrt[3]{32x^2 } \sqrt[3]{4x^2} -4x^2 \sqrt[3]{4x^2} \sqrt[3]{2x}[/tex]

[tex]\hookrightarrow 2^5\sqrt[3]{2}x^{\frac{7}{3}}-2^2\cdot \:2^{\frac{2}{3}}\sqrt[3]{2}x^3[/tex]

[tex]\hookrightarrow 32\sqrt[3]{2}x^{\frac{7}{3}}-4\cdot \:2^{\frac{2}{3}}\sqrt[3]{2}x^3[/tex]

[tex]\hookrightarrow 32x^2 \sqrt[3]{2x} - 8x^3[/tex]

Solve for xx. Round to the nearest tenth of a degree, if necessary.QRSx°2755Answer: x=x=

Answers

The measure of x is an illustration of the cosine trigonometry ratio

The measure of x to the nearest tenth of a degree is 58.7 degrees

How to calculate the measure of x

The measure of x is calculated using the following cosine ratio

[tex]\cos(x) = \frac{4.1}{7.9}[/tex]

Evaluate the quotient

[tex]\cos(x) = 0.5190[/tex]

Take the arccos of both sides of the equation

[tex]x = \cos^{-1}(0.5190)[/tex]

Evaluate the arccos(0.5190)

[tex]x = 58.73[/tex]

Approximate to the nearest tenth of a degree

[tex]x = 58.7[/tex]

Hence, the measure of x is 58.7 degrees

Read more about cosine ratio at:

https://brainly.com/question/15793827

Fabiola’s dog is 5 pounds heavier than one-third of the weight of Luisa’s dog. Fabiola’s dog weighs 23 pounds. Use the diagram to write an equation to represent the dogs’ weights. Let f represent the weight of Luisa’s dog.

A long rectangle is the top section. 2 smaller rectangles are the bottom section.

The top section represents
.
The bottom section represents
.
The equation is
.

Answers

Let us rephrase this statement: Fabiola's dog weighs 5 pounds more than one-third of Luisa's dog. The dog that Fabiola owns weights 23 pounds.
This is the equation for Fabiola's dog's weight: 1/3f + 5 = 23

I have no understanding what the diagram means.

please i need the answer ​

Answers

1.) DBC

2.) EBA

3.) CBD=20
180-160=20

4.) CBD=60
3x=180
x=60

5.) Supplementary

4+5(p-1) how to expand brackets and then simplify

Answers

Step-by-step explanation:

these are multiplications.

you could also write

4 + 5×(p - 1)

now, we need to calculate the contents of brackets (if we can), then do the multiplications and divisions, before we can do the then remaining additions and subtractions.

if we cannot do a calculation directly (because there is a variable involved), we need to do and document the single steps for the individual parts involved.

so,

4 + 5×(p - 1) = 4 + 5×p + 5×-1 = 4 + 5p - 5 = 5p - 1

remember, a multiplication of 2 expressions is done by multiplying every term of one expression with every term of the other expression and adding the results up (by considering their individual signs, of course).

will give u 20 points brainlist

Answers

Answer:

once a plats grew in 2 weeks he was 12 weeks old and he grew by 10 to 60 height lead and and he gained 140 to 155 fat

Step-by-step explanation:

Which point is located at (2, -3)?

Answers

Point K because its x-coordinate is at 2 and its y-coordinate is at -3.

A) Point K

Answer:

Point K

Step-by-step explanation:

Remember, in a rectangular coordinate plane, every point is shown as (x, y)

x is moving left and right while y moves up and down. Looking at the point provided, (2, -3).

x = 2

A positive x value means the point will be shifted to the right, while the number 2 tells you to shift to the right 2 units.

y = -3

A negative y value means the point will be shifted down, while the number -3 tells you to shift down 3 units.

Now, looking at the graph, starting at (0, 0), move to the right 2 units and move down 3 units. The point resting at this point is Point K.

What is the solution to this inequality?
X-6<-4

Answers

Step-by-step explanation:

[tex]x - 6 < - 4[/tex]

[tex]x - 6 + 6 < - 4 + 6[/tex]

[tex]x < 2[/tex]

5x+3y=15
x+2y= -5 solve for x and y

Answers

Answer:

x=-3/5y+3

Step-by-step explanation:

Let's solve for x.

5x+3y=15

Step 1: Add -3y to both sides.

5x+3y+−3y=15+−3y

5x=−3y+15

Step 2: Divide both sides by 5.

5x/5 = -3y+15/5

Answer

x=-3/5y+3

Hello! can someone help with these questions? I provided photos of the triangles below.

1. Determine which sides correspond with each angle in triangle ABC below.
a. angle XYZ corresponds with side length ____
b. angle ZXY corresponds with side length ____
c. angle YZX corresponds with side length ___

2. Determine which angles correspond with each side in the triangle below.
__
a. side length KL corresponds with angle ___
__
b. side length LJ corresponds with angle ___
__
c. side length JK corresponds with angle ___

thanks for any help!

Answers

The sides that correspond to each angle in triangle ABC are:

Angle XYZ corresponds with side length YZAngle ZXY corresponds with side length XZAngle YZX corresponds with side length YX

The angles correspond with each side in the triangle are:

Side length KL corresponds with angle KSide length LJ corresponds with angle JSide length JK corresponds with angle L

How to determine the corresponding sides

The corresponding sides are segments located at the same relative position of an angle.

So, the corresponding sides of the angles are:

Side YZ & angle XYZ, Side XZ & angle ZXY, and Side YX and angle YZX

How to determine the corresponding angles

On the other hand, the corresponding angles are segments located at the same relative position of the sides.

So, the corresponding angles of the sides are:

Side KL & angle K, Side LJ & angle J, and Side JK and angle L

Read more about corresponding sides and angles at:

https://brainly.com/question/1675117

Yesterday the temperature at noon was 28.8°F. By midnight, it had dropped by 30.9°F. What was the temperature at midnight?

Answers

Answer:

-2.1°F

Step-by-step explanation:

We will subtract 28.8°F from 30.9°F and then reverse our answer.

30.9°F - 28.8°F = 2.1°F

= -2.1°F.

Answer: -2.1°F

The correct answer is -2.1°F. You do this by simply subtracting 28.8 by 30.9. When doing this, you get -2.1. So the temperature at midnight was -2.1°F.

Step-by-step explanation:

Hope this helps =)

What is n in n:44 = 7:11?

Answers

Answer:

n = 28

Step-by-step explanation:

hope this helps :)

[tex]\frac{n}{44} =\frac{7}{11} \\\\11n=308\\n=\frac{308}{11} \\n=28[/tex]

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