can some help me plz​

Answer:

25%

Step-by-step explanation:

160 ÷ 2 is 80

80 ÷ 2 is 40

half of 50% is 25%

so the answer is 25%

Answer:

1.3

Step-by-step explanation:

Looking at the triangle, the first thing we can notice is that it is a right triangle, so we can use trigonometric ratios to solve for missing sides.

The side the problem is asking us to find is leg HI, which happens to be the hypotenuse of triangle HIJ.

We also know one side length: HJ= 1.2 ft, and one angle measure: ∠I=72°.

In these types of problems, there are two trigonometric ratios we can look to:

You can actually use either of these to solve your problem, but for convenience let's use cosecant.

disclaimer: i'm not at all qualified to be teaching trigonometry haha (but i hope this helps you!!)

please please please let me know if i made any mistakes

Using it's concept, it is found that the median of the data in the dot plot is 83.5.

The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.

The dot plot gives the number of times each measure appears, hence in this problem, the data-set is composed by:

{81, 82, 83, 83, 84, 84, 85, 85}

Even cardinality, hence the median is the mean of the two middle elements, 83 and 84, hence:

M = (83 + 84)/2 = 83.5.

The median of the data in the dot plot is 83.5.

More can be learned about the median of a data-set at https://brainly.com/question/22481790

Answer:

Step-by-step explanation:

(multiplying the numerator and denominator of a fraction by the same number doesn't change its value ... The solutions for 4x2−3x−1=0 are x=1 and x=−14.

Step-by-step explanation:

What you are dealing with is what we call special right triangles. There are two types of right triangles.

30-60-90 triangle- A special

right triangle with side length ratio as

[tex](a)(a \sqrt{3} )(2a)[/tex]

, where a is any positve number

45-45-90- a special right triangle which side length ratios are

[tex](a)(a)(a \sqrt{2)} [/tex]

where a is any positve number.

45 45 90 triangles is indicated by two congruent side measures( if the legs are congruent and it has a right angle, it is a 45-45-90.

30-60-90 triangles is indicated by a having at least two of the following angles given (30,60, and 90).

Shortcuts:

For a 45 45 triangle,

the legs are equal while the hypotenuse is the sqr root of 2 times than the legs.

Example, look at 1. The legs side length is 12 so our hypotenuse side length will be

[tex]12 \sqrt{2} [/tex]

For a 30-60-90 triangle, the side that is adjacent to the 30 and 90 degree measure sqr root of 3 times more than the horizontal leg.

the slanted side or the side which is adjacent to the 30 and 60 degree angle is twice the length of the horizontal leg or the side that is adjacent to the 60 and 90 degree.

Example, look at 3. We need to find x but we are given the horizontal side so just multiply sqr root of 3 to 12.

[tex]x = 12 \sqrt{3} [/tex]

[tex]1.12 \sqrt{2} [/tex]

2.Both equal

[tex]2.8 \sqrt{2} [/tex]

[tex]3.12 \sqrt{3} [/tex]

4. a=13

[tex]4.13 \sqrt{3} [/tex]

[tex]5.9 \sqrt{4} [/tex]

Answer:

140

Step-by-step explanation:

1 and 3 are vertical angles meaning they are equal. 4 and 3 make a straight angle. A straight angle is 180.

180-140=40

2 and 4 are straight angles so should be equal.

1=140

2=40

3=140

4=40

Answer:

3,4.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

[tex]ax^{2} + bx + c, a\neq0[/tex].

This polynomial has roots [tex]x_{1}, x_{2}[/tex] such that [tex]ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})[/tex], given by the following formulas:

[tex]x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}[/tex]

[tex]x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}[/tex]

[tex]\Delta = b^{2} - 4ac[/tex]

In this question:

The function is:

[tex]g(x) = \frac{x^2+4x-5}{x^2-7x+12}[/tex]

In a fraction, the values not in domain are the values for which the denominator is 0.

Find all values of that are NOT in the domain of g.

It will not be in domain if the denominator is 0. So

[tex]x^2 - 7x + 12 = 0[/tex]

That is, a quadratic equation with [tex]a = 1, b = -7, c = 12[/tex]

[tex]\Delta = (-7)^{2} - 4(1)(12) = 49 - 48 = 1[/tex]

[tex]x_{1} = \frac{-(-7) + \sqrt{1}}{2(1)} = 4[/tex]

[tex]x_{2} = \frac{-(7) - \sqrt{1}}{2(1)} = 3[/tex]

The values are 3 and 4, so the answer is 3,4.

Answer:

so 4 dollars is discount

100-20=80 so

4 dollars =80%

1 dollar=20%

80+20=100

4+1=5

original price=$5

Answer:

I think is may be $3.20 I may be wrong sorry if I am.

Step-by-step explanation:

Answer:

42 and 30

Step-by-step explanation:

Answer: The first step would be to subtract 32 from both sides.

Step-by-step explanation:

The answer to the whole equation is -44.

To get -44 you need to get rid of the 32 to get the x to be alone.

Answer:

Measurement of angle E is 55°.

Step-by-step explanation:

By applying triangle sum theorem in ΔACE,

m∠A + m∠E + m∠C = 180°

(6x - 15)° + (4x)° + m∠E = 180°

m∠E = 180° - (10x - 15)

        = (195 -10x)°

Similarly, in ΔBDE,

(5x - 1)° + (4x)° + m∠E = 180°

(9x - 1)° + m∠E = 180°

m∠E = 180 - (9x - 1)

         = (181 - 9x)°

By equating both the measures of angle E,

(195 - 10x) = (181 - 9x)

195 - 181 = 10x - 9x

x = 14

m∠E = (195 - 10x) = 195 - 10(14)

                            = 195 - 140

                             = 55°

Therefore, measurement of angle E is 55°.

Answer:

b. [tex]\frac{2}{3} \: ft[/tex]

Step-by-step explanation:

[tex] \triangle ABE\sim \triangle CDE[/tex]

(AA postulate)

[tex] \therefore \frac{AB}{CD} =\frac{BE}{DE} [/tex]

[tex] \therefore \frac{2}{h} =\frac{24}{8} [/tex]

[tex] \therefore \frac{2}{h} =3 [/tex]

[tex] \therefore h= \frac{2}{3} \: ft[/tex]

Answer:

34 degrees.

Step-by-step explanation:

First of all, the sum of a triangle's degree is 180.

The angle next to the 101 is 79 degree due to the rule of supplementary angle. The angle vertical to 28 is also 28. (Vertical angles are equal).

Now we now the two side, we can figure out the last side.

180-28-79= 73

The last angle is 73 degrees. However, we are looking for x.

x+39=73

All we have to do now is subtract 39 from 73, and that leaves us with 34.

Answer:

i think its 255

Step-by-step explanation:

360 divided by 24 and then multiply that answer by 17

Answer:

240?

Step-by-step explanation:

Answer: hmmmmmmmmmmmmmmmm no sorry

Step-by-step explanation: thanks for the points tho G

Answer:

5

Step-by-step explanation:

2/12 goes in 11/12 5 times. 1/12 inch will be left.

Answer:

0.8125

Step-by-step explanation:

First , we all know that fraction is like division.

So I divided 13 by 16

Then I got my answer

Answer:

.812

Step-by-step explanation:

13/16 = .812

The fraction sign also means to divide, so all you do is 13/16 = .812

Work:

First, multiply 13 by 10^1 to get 130, then you can divide.

[tex]\sqrt[16]{130} \\[/tex]  = 8.12. Finally, you take the 10^1 you did from 130 and divide 8.12 to get .812

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

9

"Square root of 81 is 9. Both 81 and its square root 9 are perfect squares. 81 is the largest two digit perfect square having the largest single digit number as its square root (9). Square root of 81 is 9."

Hope it helps.

Have a nice day noona/hyung!~ ￣▽￣❤️

Answer:

[tex]→ \sqrt{81} = \boxed 9✓[/tex]

Answer:

it should be -1,1

Step-by-step explanation:

Answer:

21 square I think bc 9 + 12 = 21

Step-by-step explanation:

Answer:225 squ.

Yw*-*

Answer:

312

Step-by-step explanation:

24×13=312

Hope that helps

Answer:

Reflexive (or Identity) Property of Equality a = a

Answer:

Reflective Property of equality which states that for all numbers x

x = x

Hope this helped and brainliest please

Answer:

1226778109

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Step-by-step explanation:

Well you need to multiply 12 by 5 and you get 60  

Hope this helps

Answer: 60

Answer:

Yes

Step-by-step explanation:

In right-angled triangles, the Theorem of Pythagoras can be applied. (The hypotenuse squared is equal to the sum of the other two sides squared).

The hypotenuse is always the longest side, therefore if it's a right-angled triangle:

15²+35² should equal to 38² and in this case it does.

Answer:

x= 5.5      y=2.25

Step-by-step explanation:

5(10 - 2y) -6y=14

50-10y-6y=14

50- 16y=14

-16y=-36

divide by negtivve # to get positive #

y=2.25

substiue

x+ 2(2.25) =10

x+4.5=10

x=5.5

Using it's formula, it is found that the Mean Absolute Deviation is given by:

D.4.24

In this problem, the mean is given by:

[tex]M = \frac{5 + 11 + 2 + 7 + 16}{5} = 8.2[/tex]

Hence, the mean absolute deviation is given by:

[tex]M_d = \frac{|5-8.2| + |11-8.2| + |2-8.2| + |7-8.2| + |16-8.2|}{5} = 4.24[/tex]

Hence option D is correct.

More can be learned about the Mean Absolute Deviation at https://brainly.com/question/3250070