The sides of a triangle have lengths 2 x, 8 , and 12. If the length of the longest side is 2 x , what values of x make the triangle acute?

Answers

Answer 1

The values of x to make the triangle acute is [tex]2 < x < 2\sqrt{13}[/tex].

Triangle inequality theorem states that that the sum of any two sides of the triangle is greater than the third side of of the triangle

Pythagorean Inequality theorem states that if the square of the longest side  is less than the sum of squares of other two sides then the triangle is acute.

In the given question

Longest side = 2x

other two shorter side =  8 and 12.

By Triangle Inequality theorem

(i) 8+12>2x    ⇒20>2x  ⇒x<10

(ii) 2x+8>12  ⇒2x>4  ⇒x>2

(iii) 2x+12>8  ⇒2x>-4  ⇒x>-2

From (I), (ii) & (iii) we conclude that value of x should be in between 2<x<10.

To make the triangle acute

Using Pythagorean Inequality theorem

[tex](2x)^{2} < 8^{2} +12^{2} \\ \\ 4x^{2} < 64+144\\ \\ 4x^{2} < 208\\ \\ x^{2} < \frac{208}{4}[/tex]

[tex]x^{2} < 52\\ \\ taking. Square. Root . both . the . sides \\ \\ x < \sqrt{52} \\ \\ x < 2\sqrt{13}[/tex]

Therefore , the value of x to make the triangle acute is [tex]2 < x < 2\sqrt{13}[/tex].

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Related Questions

five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​

Answers

The number according to the given statement is x<-0.55.

Given the statement is five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​.

A mathematical statement is a meaningful component of words that can be true or false. Simply, they are known as a statement.

Let us assume the given number be x.

According to the given statement,

Five and three-tenths of a number means 5.3x.

And two and seven-tenths means 2.7.

So, five and three-tenths times a number plus two and seven-tenths means 5.3x+2.7.                ......(1)

It is also given that three and three-tenths times a number means is 3.3x.      

And one and six-tenths means 1.6.

So, three and three-tenths times a number plus one and six-tenths​ means 3.3x+1.6         .......(2)

Now, we will substitute equation (1) less than equation (2) according to the given statement is

5.3x+2.7<3.3x+1.6

Further, we will subtract 2.7 from both sides, we get

5.3x+2.7-2.7<3.3x+1.6-2.7

5.3x<3.3x-1.1

Now, we will subtract 3.3x from both sides, we get

5.3x-3.3x<3.3x-1.1-3.3x

2x<-1.1

Now, we will divide both sides by 2, we get

2x/2<-1.1/2

x<-0.55

Hence, the number for the given statement "five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​" is -0.55.

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A sum of money is divided amongst Doug, Eddie and Finlay in the ratio 3:5:7. find Finlay's amount of money:

A. Doug had $36

B. Finlay get $80 more than Douge​

Answers

B

Step-by-step explanation:

just did this one and got a 100%

At your express they charge $0.17 per ounce for yogurt and toppings. Maria pays $2.04 for her yogurt. How many ounces of yogurt and toppings did Maria get

Answers

Maria got 12 toppings

what is g(r) = -5+13 when g(3)

Answers

The function g(3)'s expression is 8, which is

The supplied function is defined by a single expression, as per the query. Calculate the value of the other function using the provided expression.

In light of this, g(r) = -5 + 13 = 8

Additionally, the computed value can also be used as the value of the function expression g(3).

Consequently, the value of the function provided is 8.

Describe function.

The relationship between the dependent and independent variables is explained by the function. For the functions, it has a collection of values that may be connected using the domain technique.

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Help me with this. I am really stuck.

Answers

By the Hypotenuse Leg theorem, the two triangles are congruent. That is, ΔBXA ≅ ΔBYA

From the question, we are to prove that ΔBXA ≅ ΔBYA

From the Hypotenuse Leg theorem which states that "two right triangles are congruent if the hypotenuse and one leg of one right triangle are congruent to the other right triangle's hypotenuse and leg side".

From the given information,

BX ⊥ XA.

ΔBXA is right triangle with hypotenuse AB

Also,

BY ⊥ YA.

ΔBYA is right triangle with hypotenuse AB

∴ The hypotenuses of the triangles are congruent

Also, from the given information,

XA is congruent to YA

XA and YA are the legs of the right triangles.

Hence, by the Hypotenuse Leg theorem, the two triangles are congruent. That is, ΔBXA ≅ ΔBYA

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Help me!! 30 points. Marcel made an error when he used the distributive property to write an equivalent expression.

Which sentence describes the error?

Answers

Answer: C

Step-by-step explanation:

Should be C because the other choices seem false

Help me !!!!!!!!!!!!!!!!
graph for function f(x)=3.1^4

Answers

Graph for the function f(x)=(3.1)⁴ is parallel to the x-axis and passing through coordinate (0, 92.3521 ).

As given in the question,

Function: f(x)=(3.1)⁴

Here x  is independent variable and f(x) is dependent variable on x.

f(x)=(3.1)⁴ is a constant value and does not have any x variable.

It is shown in the drawn graph.

x =0 , f(x)=(3.1)⁴

x =1 , f(x)=(3.1)⁴

x = 2 , f(x)=(3.1)⁴

x = -1 , f(x)=(3.1)⁴

x = -2 , f(x)=(3.1)⁴ and so on.

Therefore, graph for the function f(x)=(3.1)⁴ is parallel to the x-axis and passing through coordinate (0, 92.3521 ).

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I need help with number 42 please

Answers

Answer:

yes, it’s proportional

Step-by-step explanation:


Two similar hexagonal prisms have volumes of 250 cubic feet and 2 cubic feet. What is the ratio of the height of the large cylinder to the height of the small cylinder?

Answers

 The ratio of the height of the larger prism to the smaller prism is a/b = 5.

 To solve this problem we must know what a scale factor is.

What is the scalar factor?

  The scale factor is a dimensionless number that allows us to relate dimensions in figures, it is also known as numerical ratio or proportion.

  If we have as reference the volumes of two hexagonal prisms, with the values of:

250 cubic feet2 cubic feet

  If the reason or scale for the volume is given by

a³/b³ = 250/2a³/b³ = 125  

 Let's go for the reason of the length, for this we apply the cubic root.

a³/b³ ⇒ ∛(a³/b³)

∛250/2

a/b = 5

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the value of 97 - 2 x (16-4)?​

Answers

Answer:

73

Step-by-step explanation:

97 - 2 × (16 - 4) ← evaluate parenthesis

= 97 - 2 × 12 ← evaluate multiplication

= 97 - 24 ← evaluate subtraction

= 73

Answer:

73

Step-by-step explanation:

97 - 2 x (16-4) =

97 - 2 x (12) =

97 - 24 =

73

prove the quadrilateral is a parallelogram by showing opposite sides are congruent A(-7,5) B(6,5) C(4,-2) D(-9,-2)

Answers

The quadrilateral is a parallelogram because the pairs of opposite sides of the quadrilateral are parallel, ABCD is a parallelogram.

Given:- A quadrilateral ABCD in which AB=CD and AD=BC.

To prove:- AB∥CD and AD∥BC

Construction:- Joi A and C.

Proof:-

In △ABC and △CDA,

AB=CD(Given)

AD=BC(Given)

AC=AC(Common)

∴△ABC≅△CDA(By SSS)

Therefore, by CPCTC,

∠ACD=∠BAC

∠DAC=∠ACB

Since alternate angles are equal, thus the lines are parallel.

Therefore,

AB∥CD and AD∥BC

Since both the pairs of opposite sides of the quadrilateral are parallel, ABCD is a parallelogram.

Hence proved.

A quadrilateral in geometry may be a four-sided polygon with four sides and four corners (vertices). The Latin words Quadri, a variation of 4, and latus, meaning "side," are the source of the name. In regard to other polygons, it's also known as a tetragon, from the Greek "tetra" for "four" and "gon" for "corner" or "angle" (e.g. pentagon). Since "gon" is an anagram for "angle," it's also known as a quadrilaterals or 4-angle.

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3 consecutive integers that equal 21

Answers

6,7,8 because they are integers right after each other that equal 21.

Answer: 6,7,8

Step-by-step explanation:

what is 10% of 17 because i don't know and i'm 4th grade.

Answers

10% of 17 is 1.7 I believe


find the distance between each pair of points.
F(3,6), G(7,-4)

Answers

Answer:  the distance is (4,2)

Step-by-step explanation: it takes from 3 to seven 4 1s. and 6 -4 will be 2

hope this helps

A ticket to see your favorite baseball team costs ​$31.55. That price decreases by ​$0.21 for every game lost during the regular season. What equation could you use to find the cost C of a ticket after L​ losses? Represent the total change in the cost of a ticket after the team loses 22 games. What is the price of a ticket after the team loses ​22 games?

Answers

Answer:

The price of a ticket after the team loses 22 games is $26.93

Step-by-step explanation:

Original value = $31.55

value decrease per game lost = $0.21

equation uses C and L

C = 31.55 - 0.21L

22 games lost

C = 31.55 - 0.21(22)

C = 31.55 - 4.62

C = 26.93

C = $26.93

Which expression is equivalent to 3(−4.5b − 2.1) − (6b + 0.6)?

19.5b + 1.5
−19.5b − 1.5
−19.5b − 6.9
19.5b − 6.9

Answers

The expression that is equivalent to 3(−4.5b − 2.1) − (6b + 0.6) is -19.5b − 6.9

How to determine the equivalent expression?

The expression is given as:

3(−4.5b − 2.1) − (6b + 0.6)

Open the brackets

3(−4.5b − 2.1) − (6b + 0.6) = -13.5b − 6.3 − 6b - 0.6

Collect the like terms

3(−4.5b − 2.1) − (6b + 0.6) = -13.5b  − 6b − 6.3 - 0.6

Evaluate the like terms

3(−4.5b − 2.1) − (6b + 0.6) = -19.5b − 6.9

Hence, the expression that is equivalent to 3(−4.5b − 2.1) − (6b + 0.6) is -19.5b − 6.9

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Answer:

C: -19.5b-6.9

Step-by-step explanation:

Pls Solve

find a. ga+q=r

Answers

The value of a for the given equation is a=(r-q)/g.

The given equation is ga+q=r.

We need to find the value of a from the given equation.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now, ga+q=r can be solved for a as follows:

⇒ga=r-q

⇒a=(r-q)/g

Therefore, the value of a for the given equation is a=(r-q)/g.

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Solve the system of inequalities

Answers

Answer:

1. x < 4

2. x > 1

3. x < 5

Step-by-step explanation:

find the measure of the missing angles for f,d,e

Answers

Answer:

E= 36 D=102 F=42

Step-by-step explanation:

E= 36 because of the vertical angles theorem, d =102 because of vertical angles theorem, and finally we have f = 42 because all these angles form a straight angle/line which adds up to 180. So before we knew that d=102 and e=36 so we can add those up and we get 138. Then we subtract 132 from the measure of a straight angle (180 degrees), to get f. SO 180-132 =f=42

For each sequence,find the first 4 terms and the 10th terms
3n+4
4n-5

Answers

Answer:

Below in bold.

Step-by-step explanation:

3n + 4:

The common difference = 3,

First term = 3(1) + 4 = 7

First 4 terms

= 7, 10, 13, 16

10th term = 3(10) + 4 = 34.

4n - 5:

The common difference = 4,

First term = 4(1) - 5 = -1

First 4 terms

= -1, 3, 7, 11

10th term = 4(10) - 5 = 35.


Substitute -3for{x} in each of the following equations. What is the value of y ?
b. y=-x+5

Answers

In the equation y = -x + 5, the value of y when we substitute -3 for x is 8.

An algebraic expression is a number, variable, or the combination of both and operational symbols. On the other hand, an equation is the equality of two expressions separated by "=".

To evaluate an equation means to substitute a value to the variable and perform the arithmetic operations included.

Given the equation y = -x + 5, if we substitute -3 for x, the equation becomes

y = -(-3) + 5

Performing the arithmetic operations, we can have the value of y.

y = -(-3) + 5

y = 3 + 5

y = 8

Hence, for the equation y = -x + 5, y is 8 when x is -3.

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A clothing business finds there is a linear relationship between the number of shirts,
n ,it can sell and the price, p , it can charge per shirt. In particular, historical data shows that 1000 shirts can be sold at a price of $47, while 4000 shirts can be sold at a price of $26. Give a linear equation in the form p=mn+b that gives the price p they can charge for n shirts.

Answers

A linear equation that gives the price p they can charge for n shirts is equal to p(n) = -0.07n + 147.

Given the following data:

Points on x-axis = ($26, $47).Points on y-axis = (4000, 1000).

What is a slope?

A slope is also referred to as gradient and it's typically used to describe both the ratio, direction and steepness of the function of a straight line.

How to calculate the slope of a line?

Mathematically, the slope of any straight line can be calculated by using this formula;

[tex]Slope, m = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Slope, m = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}[/tex]

Substituting the given points into the formula, we have;

Slope, m = (47 - 26)/(1000 - 4000)

Slope, m = -21/3000

Slope, m = -0.07

Mathematically, the standard form of the equation of a straight line is given by;

y = mx + b ≡ p = mn + b

At point (1000, 47), we have:

47 = -0.07(1000) + b

47 = -70 + b

b = 47 + 70

b = $147

In conclusion, we can reasonably and logically deduce that the slope-intercept form of the equation of the line described is p(n) = -0.07n + 147.

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Solve the equation and state whether the equation has one solution, has no solution, or is an identity
8(g+6)=5g+3(g+16)

one-solution

No solution

identity

Answers

8g+48=5g+3g+48
8g-5g-3g=48-48
0g=0
I think it is no solution but I’m not sure

Are the two triangles congruent?
6 cm
13 cm
6 cm
13 cm

A Yes
B No
C Not enough
information to say.

Answers

Here no enough information to determine if the triangles are congruent.

Option C is true.

What is Congruent triangle?

Congruent triangle have both the same shape and the same size.

Given that;

Two sides of triangles are 6 and 13.

Now,

Since, Congruent triangles are triangles that have equal corresponding angles and sides.

From the images of the triangles (see attachment),

We can see that the two triangles have 6cm and 13cm as the lengths of their sides.

However, The side lengths of both triangles are not corresponding, and the angle measures are not given.

Hence, There is no enough information to determine if the triangles are congruent.

Option C is true.

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Let x be a binomial random variable with p = 0.1 and n = 10. calculate the following probabilities

Answers

The probabilities from the binomial probability mass function P(x ≤ 2) will be 0.9298.

What is binomial distribution?

Frequency distribution of the percentage of successful outcomes that might occur in a certain number of trials with the same chance of success. If X~B(n, p), then the probability is given as

[tex]\rm P(X=x) = \ ^nC_x \times p^x \times (1-p)^{n - x}[/tex]

q = 1 - p = 1 - 0.10 = 0.90

Let x be a binomial random variable with p = 0.1 and n = 10.

The probabilities from the binomial probability mass function P(x ≤ 2) will be

P(x ≤ 2) = P(x = 0) + P(x = 1) + P(x = 2)

P(x ≤ 2) = ¹⁰C₀ × (0.1)⁰ × (0.9)¹⁰ + ¹⁰C₁ × (0.1) × (0.9)⁹ + ¹⁰C₂ × (0.1)² × (0.9)⁸

P(x ≤ 2) = 0.3487 + 0.3874 + 0.1937

P(x ≤ 2) = 0.9298

Your question was incomplete but the complete question is given below.

Let x be a binomial random variable with p = 0.1 and n = 10. Calculate the probability from the binomial probability mass function less than or equal to 2.

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PLEASE HELP ASAP❗❗❗Brian learned to build a cajón from his grandfather. A cajón is a box-shaped drum that you play by slapping the front. Brian builds the cajón shown. How much wood will Brian need to build the four vertical sides but not the top or bottom?​

Answers

The required wood needed to build four vertical sides is 60 inch.

According to the question, the given parameters for the box-shaped drum is as follows:

Length = 18 inch; Breadth = 12 inch; Height = 11 inch

To know the quantity of the wood need to build four vertical sides, calculation of perimeter is required.

Therefore, perimeter of the box = 12 + 18 + 12 + 18 = 60 inch

Hence, the required wood needed to build four vertical sides is 60 inch.

What is perimeter of a shaped box?

Perimeter of a shaped box is the addition of all the sides of a box. It is used for the closed shaped boxes. And it is measured in the linear units like meter, centimeter, etc.

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The graph of a function h is shown below.
Find h(-1).

Answers

Answer: h(-1) is equal to -2.

Step-by-step explanation:

We have to find , h(-1).

First you can plot the value of x = -1 in the graph.

Then you can draw a perpendicular line on the down ward direction and intersect to the parabola curve.

What is a parabola curve?

A parabola is a U-shaped plane curve where any point is at an equal distance from a fixed point (known as the focus) and from a fixed straight line which is known as the directrix. Parabola is an integral part of conic section topic and all its concepts parabola are covered here.

A parabola is a curve where any point is at an equal distance from: a fixed point (the focus ), and. a fixed straight line (the directrix )

Now you can see the point of (-1,-2) in the graph

Where,

                   h(-1) = -2

So, h(-1) is equal to -2.

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Solve each equation. 4+x=-52

Answers

The soluton of the given linear equation in one variable 4 + x = -52  is x = -56.

According to the given question.

We have a linear equation in one variable 4 + x = -52.

Since, we have to solve the above equation for x.

As we know tha, the linear equations in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.

Thereofore, the solution of the above equation 4 + x = -52 is given by

4 + x = -52

⇒ x = -52 - 4    ( subtract 4 both the sides)

⇒ x = -56

Hence, the soluton of the given linear equation in one variable 4 + x = -52  is x = -56.

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Write a coordinate proof for each statement.If a line segment joins the midpoints of two sides of a triangle, then its length is equal to one half the length of the third side,

Answers

If a line segment joins the midpoints of two sides of a triangle, then its length is equal to one-half the length of the third side has been proved.

What is a triangle?

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

In the given triangle below;

Line segment BC is intersecting at the midpoint of AD and AE.

Now,

Since ΔABC ≈ ΔADE by similarity property.

So,

AB/AD = BC/DE

AB/(AB + BD) = BC/DE

Since AB = BD = AB lets say,

AB/2AB = BC/DE

BC/DE = 1/2

Hence "If a line segment joins the midpoints of two sides of a triangle, then its length is equal to one-half the length of the third side has been proved".

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sin 0 <0, tan 0 <0 the angle lies in which quadrant

Answers

Answer: quadrant 4 (IV)

Step-by-step explanation:

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