The altitude of an equilateral triangle is 7 units long. The length of one side of the triangle is ____ units. 7 14

Answers

Answer 1

The length side of equilateral triangle is 8.08 units

What is Altitude?

The altitude or height of an equilateral triangle is the line segment from a vertex that is perpendicular to the opposite side.

Here, let the side of the equilateral triangle be x units

given altitude of the equilateral triangle = 7 units

we know,  

Altitude = √3/2 X side

   7 = √3/2 X x

   x = 7 X 2 / √3

   x = 14/√3

   x = 8.08 units

Thus, the length side of equilateral triangle is 8.08 units.

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Related Questions

Which expression represents the sixth term in the binomial expansion of (5y 3)10?

Answers

The expression in the 6th term in the binomial expression is [tex]265781250y^6[/tex]

How to determine the expression in the sixth term?

The expression is given as:

(5y + 3)^10

The above expression is a binomial expression, and the xth term can be represented using:

[tex]^nC_x (a)^x * (b)^{n-x}[/tex]

So, we have:

[tex]^{10}C_6 * (5y)^6 * (3)^4[/tex]

Evaluate the combination expression

[tex]210 * (5y)^6 * (3)^4[/tex]

Evaluate the exponents

[tex]210 * 15625y^6 * 81[/tex]

Evaluate the product

[tex]265781250y^6[/tex]

Hence, the expression in the 6th term is [tex]265781250y^6[/tex]

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A 26-inch skateboard leans against a wall making a 39angle with the ground

Answers

Diagram:-

[tex]\setlength{\unitlength}{1cm}\begin{picture}(6,5)\linethickness{.4mm}\put(1,1){\line(1,0){4.5}}\put(1,1){\line(0,1){3.5}}\qbezier(1,4.5)(1,4.5)(5.5,1)\put(.3,2.5){\large\bf \!\!\!\!Wall}\put(2.8,.3){\large\bf Ground}\put(1.02,1.02){\framebox(0.3,0.3)}\put(.7,4.8){\large\bf A}\put(.8,.3){\large\bf B}\put(5.8,.3){\large\bf C}\qbezier(4.5,1)(4.3,1.25)(4.6,1.7)\put(3.8,1.3){\large\bf$39^{\circ}$ }\end{picture}[/tex]

We need the walls height then ground distance

[tex]\\ \rm\Rrightarrow sin\theta=\dfrac{Perpendicular}{Hypotenuse}[/tex]

[tex]\\ \rm\Rrightarrow sin39=\dfrac{P}{26}[/tex]

[tex]\\ \rm\Rrightarrow P=26sin39[/tex]

[tex]\\ \rm\Rrightarrow P=16.4in[/tex]

Distance of wall from skateboard touching point on ground:-

[tex]\\ \rm\Rrightarrow cos\theta=\dfrac{Base}{Hypotenuse}[/tex]

[tex]\\ \rm\Rrightarrow cos39=\dfrac{B}{26}[/tex]

[tex]\\ \rm\Rrightarrow B=26cos39[/tex]

[tex]\\ \rm\Rrightarrow B=20.2in[/tex]

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Evaluate the expression when a=4, b=2, and c=5. 3ab - c

Answers

Answer:

19

Step-by-step explanation:

3(4)(2) - 5

3 * 4 = 12 * 2 = 24

24 - 5 = 19

what is the surface area of this solid?

_______ square meters

o 101
o 107
o 116
o 131

Answers

Answer:

The surface area of this solid is:

b. 107

Step-by-step explanation:

To understand this answer we need to analyze it. First, we have different geometric figures composing the solid. A pyramid and a rectangular prism. We need to obtain the surface, not the volume so we need to obtain the area of all the figures composing the pyramid and the prism without the hidden part of the pyramid base. We need to obtain the following areas:

2 rectangles with the following measures= W=2 L= 8

1 rectangle with the following measures= W=3 L=8

1 rectangle with the following measures= W=3 L 5

2 rectangles with the following measures= W=2 L=3

4 triangles with the following measures= B=3 H=4

Following the formula for the rectangles W x L we obtain a total area for them of 83 square meters.

Following the formula for the triangles b x h / 2 we obtain the following area: 24 square meters. Then we add both and obtain 107 square meters.

The surface area of this solid is 107.

a) If a regular octagon and regular hexagon both have the same side lengths, which will have the greater area?​

Answers

Answer:

Octagon

Step-by-step explanation:

Formula for a polygon is :

A = 1/2 x a x Pa = apothem (distance from center to the midpoint of a sideP = perimeter (sum length of the sides)

Since a regular octagon has 8 sides, and a regular hexagon has 6, the octagon will have the greater area due to greater perimeter.

NEED HELP QUICKLY
(please include your work)
19. Solve for the angle x.
sin²(2x) = 1
A. 45° + 360°n, 135° + 360°n
B. 45° + 360°n, 135° + 360°n, 225° +
360°n
C. 225° +360°n
D. no solution
E. 45° +360°n, 135° + 360°n, 225° +
360°n, 315° +360°n
F. 45° + 360°n, 225° + 360°n
( A is incorrect)

Answers

Answer:

Choice E.

Step-by-step explanation:

sin^2 2x = 1

sin 2x = ± 1

So 2x = 90, 270 , 450, 630  etc

x = 45, 135, 225, 315   etc

=  45 + 360n, 135 + 360n, 225 + 360n, 315 + 360n

Se puede pasar 11/20 a fraccion mixta?​

Answers

Fractions :

The fraction 11/20 can not be converted to a mixed fraction since it belongs to the proper fraction, I mean that the numerator is less than the denominator.

Only improper fractions can be mixed.

Example :

[tex]\: \: \: \: \: \: \: \: \qquad\bold{\Rightarrow \dfrac{20}{11}= 1\dfrac{9}{11} }[/tex]

So no the fraction 11/20 cannot be a mixed fraction.

Answer:

Solve the set of two reals for the following exponential equation:

\Large\text{${\dfrac{27^x\:-\:3^x}{9^x\:-\:3^x} = 82}$}

What is the area of the pentagon, rounded to the nearest tenth?

13.8 cm2
17.3 cm2
32.7 cm2
69.0 cm2

Answers

The area of the pentagon, rounded to the nearest tenth will be 32.7 square cm. Then the correct option is C.

What is a polygon?

The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.

A regular pentagon has an apothem measuring 3 cm and a perimeter of 21.8 cm.

Then the side length of the pentagon will be

5 x Side length = 21.8 cm

     Side length = 4.36 cm

Then the area of the pentagon, rounded to the nearest tenth will be

Area of pentagon = 5 x area of triangle

Area of pentagon = 5 x 1/2 x 4.36 x 3

Area of pentagon = 32.7 square cm

Thus, the correct option is C.

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5. Mickey bought pizza and sodas for himself and four of his friends. The pizza was $17.49,
and 5 sodas were $1.19 each.
If the pizza is sliced into 10 equal slices and each person eats 2 slices and drinks one
soda, what is the cost to each person?
$2.94
® $4.13
$3.50
$4.69

Answers

Answer:

D. is the correct option

Step-by-step explanation:

There is a total of 5 people, so we can either split the pizza cost into 5, or into 10 and multiply by 2 (since each guest ate 2 slices) We'll do the first option since it's simpler.

$17.49 ÷ 5 = 3.489 or rounded up to $3.50

Next, we'll add $1.19 to $3.59 which equals $4.69

Hope this helps!

Can one of u guys help me I need help asap

Answers

Answer:

See below ~

Step-by-step explanation:

The three inequalities (listed below) have been plotted on a graph :

y ≤ 8y ≥ -3x + 4y > 2x - 4

A multiple-choice test with 50 questions has five possible
choices for each question. There are 4 marks for each correct
answer, -1 mark for each incorrect answer, and 0 marks for each
unanswered question.
What is the total score of a student with 35 correct answers, 10
incorrect answers and 5 unanswered questions?

Answers

Answer:

130

Step-by-step explanation:

[tex](35*4)-(10*1)-(5*0)=130[/tex]

Not everyone understands this but if you can help please do mi amor

Answers

Answers:

scaleneisoscelesscalene

=======================================================

Part (a)

Let's find the distance from point D to point E.

In other words, this will compute the length of segment DE.

[tex]D = (x_1,y_1) = (0,-6) \text{ and } E = (x_2, y_2) = (3,1)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(0-3)^2 + (-6-1)^2}\\\\d = \sqrt{(-3)^2 + (-7)^2}\\\\d = \sqrt{9 + 49}\\\\d = \sqrt{58}\\\\d \approx 7.6158\\\\[/tex]

Segment DE is roughly 7.6158 units long.

Let's repeat these steps to find the length of segment EF.

[tex]E = (x_1,y_1) = (3,1) \text{ and } F = (x_2, y_2) = (-2,1)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(3-(-2))^2 + (1-1)^2}\\\\d = \sqrt{(3+2)^2 + (1-1)^2}\\\\d = \sqrt{(5)^2 + (0)^2}\\\\d = \sqrt{25 + 0}\\\\d = \sqrt{25}\\\\d = 5\\\\[/tex]

Segment EF is exactly 5 units long.

Lastly, we'll compute the length of segment FD.

[tex](x_1,y_1) = (-2,1) \text{ and } (x_2, y_2) = (0,-6)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(-2-0)^2 + (1-(-6))^2}\\\\d = \sqrt{(-2-0)^2 + (1+6)^2}\\\\d = \sqrt{(-2)^2 + (7)^2}\\\\d = \sqrt{4 + 49}\\\\d = \sqrt{53}\\\\d \approx 7.2801\\\\[/tex]

Segment FD is about 7.2801 units long.

This is close to the length of DE, but not quite.

To recap, we found these segment lengths:

DE = 7.6158 (approximate)EF = 5 (exact)FD = 7.2801 (approximate)

As you can see, all three sides are different lengths. Therefore, triangle DEF is scalene.

----------------------------------

For part (b), follow the same template as part (a).

I'll be skipping the steps.

This is what you should get for the lengths of triangle TRI

segment TR = 6.0828 (approximate)segment RI = 2 (exact)segment IT = 6.0828 (approximate)

Segments TR and IT are the same length (both exactly [tex]\sqrt{37}[/tex] units long), which means triangle TRI is isosceles.

-----------------------------------

For part (c), I'll also be skipping steps.

Here are the lengths you should find

JK = 4.1231 (approximate)KL = 8.9443 (approximate)LJ = 10.6301 (approximate)

All three lengths are different, making this triangle scalene.

A, B and C lie on a straight line.
Given that angle y = 144° and angle z =
92°, work out x.
A
x
Z
The diagram is not drawn accurately.
B
C

Answers

180-144= 36°
180-36-92= 52°
z is 52°

ANSWER QUICK PLSS NOT MUCH TIME LEFT
A circle P is circumscribed about a regular hexagon ABCDEF

Select one:
a. exterior
b. inscribed
c. interior
d. central

Answers

Answer:

the answer willl be D

Step-by-step explanation:

400 divided by 8 =?
——————————-
584 divided by 2 =?
——————————-
450 divided by 9 =?
——————————-
366 divided by 3 =?
——————————-
674 divided by 7 =?
——————————-
819 divided by 9 =?
——————————-
555 divided by 5 =?
——————————-
279 divided by 9 =?
——————————-
570 divided by 5 =?
——————————-
this will help po!
thank you!!

Answers

1-50
2-292
3-50
4-122
5-96.28 or 96.3
6-91
7-111
8-31
9-114
:)
Answer:
400 divided by 8 = 50
584 divided by 2 = 292
450 divided by 9 = 50
366 divided by 3 = 122
674 divided by 7 = 96.285 or 96.3 (rounded)
819 divided by 9 = 91
555 divided by 5 = 111
279 divided by 9 = 31
570 divided by 5 = 114

a shoe company needs to create a shoe box...

Answers

Answer:

Step-by-step explanation:

21/7=3

5*3=15 width

3*3=9 height


WHOS GOOD AT MATHS??? SURELY HELP I’ll brainlist!!!! it’s so complicated i tried and lost it. let’s see whos good at this ahah

A) construct a frequency table using a suitable class interval.

B) construct a histogram to represent these results.

Answers

Answer:

You can choose classes of amplitude 5 , it may give you a better representation of the data :

Step-by-step explanation:

Given h(x) = −3 |x + 1| evaluate h (-3)



Need help this is for final’s study’s

Answers

Answer:

-6

Step-by-step explanation:

h(x) = −3 |x + 1| evaluate h (-3)

h (-3) means x = -3

Plug in:

h(x) = −3 |(-3) + 1| → h(x) = −3 |-3 + 1|

h(x) = −3 |-2|       since -2 is an absolute value it becomes 2

h(x) = −3(2)

h(x) = -6

Let me know if you have anymore questions,

Good Luck studying :) YOU GOT THIS !!!

What is 5 3/5% of 750?

Thanks in advance.

Answers

given:

[tex]5 \frac{3}{5} \% \: of \: 750[/tex]

solution:

[tex]5 \frac{3}{5} = 5.6[/tex]

[tex] \frac{5.6\%}{100} \times \frac{x}{750} [/tex]

[tex] = 42%[/tex]

hey guys. question posted in the picture. will award brainliest.

Answers

Answer:

x=80

that is because a straight angle value is 180 and that angle is already 100 sooo i guess you get the point

A and B are vertical angles. If mA = (2x + 1)° and m/B = (x +10)°,
then find the value of x.

Answers

Answer:

x = 9

Step-by-step explanation:

Given

A and B are vertical anglesm∠A = (2x + 1)m∠B = (x + 10)Find the value of x

We know that vertical angles are congruent.

Use this property to set up equation.

m∠A = m∠B

Substitute the values of angles and solve for x.

2x + 1 = x + 102x - x = 10 - 1x = 9

The value of x is 9

i need adviceeeee pllllllllllllllllllllllllllllllllllssssssssssssssssssssssssssssssssss

Answers

Answer:

140 ounces of Vegetables

Step-by-step explanation:

23 ounces of carrots x 2 = 46 ounces

47 ounces of broccoli x 2 = 94 ounces

46 ounces of carrots + 94 Ounces of Broccoli = 140 Ounces of Vegetables

Answer:

140 oz of vetables

Step-by-step explanation:

23 x 2 = 46

47 x 2 = 94

46 + 94 = 140

Mina had a disco for her birthday. For every 2 boys at the disco, there were 3 girls. There were 35 children at the disco in total. How many boys were at the disco?

Answers

sorry it’s messy! hope it helps

There were 14 boys at Mina's disco for her birthday.

What is a ratio?

A ratio is a quantitative value that shows the number of times a certain value is in another value.

The number of boys at the disco can be calculated as shown below:

It is given that for every 2 boys at the disco, there were 3 girls. This means that the ratio of boys to girls at the disco is 2:3.

Let the proportionality constant be x.

Therefore total boys and girls are 2x and 3x respectively.

There are 35 kids at the disco. This means that the number of boys plus girls is 35. It can be written as shown below:

2x + 3x = 35

⇒ x = 35/5

⇒ x = 7

Total number of boys = 2x

= 2 * 7

= 14 boys

Therefore the total number of boys at the disco is 14.

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Jane spent $27 on fruit at the grocery store. She spent a total of $60 at the store. What percentage of the total did she spend on fruit.

Answers

Answer:

45%

Step-by-step explanation:

Divide 27/60, which gives you 0.45. Multiply that by 100, you get 45 percent.

Answer:

45%

Step-by-step explanation:

27/60

A person works full time and gets paid $1,240 semi-monthly. Determine the annual
income.

With a solution.

Answers

At first we should calculate Monthly income by multiplying 2 then After multiplying by 12 to calculate Annual income

Write a quadratic function f whose zeros are 2 and 5.

Answers

Answer:

[tex] {x}^{2} - 7x + 10 = 0[/tex]

Step-by-step explanation:

[tex](x -2)(x - 5) = 0[/tex]

[tex] {x}^{2} - 7x + 10 = 0[/tex]

Simplify (sinx + cosx) ^2/ sin2x

Answers

[tex]\csc 2x+1[/tex]

Step-by-step explanation:

[tex]\frac{(\sin x+\cos x)^2}{\sin2x}[/tex]

We expand [tex](\sin x+\cos x)^2[/tex] using algebraic identity [tex](a+b)^2=a^2+b^2+2ab[/tex]

[tex]=\frac{\sin^2x+\cos^2x+2\sin x.\cos x}{\sin2x}[/tex]

[tex]= \frac{1+\sin2x}{\sin2x}[/tex]

[tex]=\frac{1}{\sin2x}+\frac{\sin2x}{\sin2x}[/tex]

[tex]=\csc 2x+1[/tex]

3M+4/3=28/3-M.find the m

Answers

Answer:

M = 2

Step-by-step explanation:

3M+4/3 = 28/3 -M

3M+M +4/3-28/3 = 0

4M -8 = 0

4M = 8 ( divide 4 in both sides)

M=8/4

M=2

Graph the parabola.
y=(x+1)^2-3

Answers

Answer:

tap on the picture to see.

Step-by-step explanation:

that should help

Answer:

I like to use Desmos when I graph parabolas. But I’m this case it would be 3 down and one to the left so the vertex should be (-1,-3) and then just graph x^2

Step-by-step explanation:

Hope this helps! ;-)

Events a and b are independent. the probability of a occurring is . the probability of b occurring is . what is p(a and b)?

Answers

Since events a and b are independent P(a and b) = P(a) × P(b)

To answer the question, we need to know what probability is

What is probability?

Probability is the likelihood of an event to occur. The probability of the event P(event) = number of required outcomes/total number of outcomes

Probability of independent events

If we have two independent event sa and b that have probabilities of occuring P(a) and P(b) respectively, the probability P(a and b) = P(a) × P(b)

So, P(a and b) = P(a) × P(b)

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