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Confession: I'm bad at math

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Answer:

210°  

Step-by-step explanation:

To change from radians to degrees, multiply 7π/6 by 180/π

That will give 210°  

Would appreciate a Brainliest if this helped :)

Answer:

Age of Jose =  5 years

Age of Adrian = 13 years

Step-by-step explanation:

Let:

Age of Jose = x

Age of Adrian = x+8

After 3 years

Age of Jose = x+3

Age of Adrian = x+8+3 = x+11

Now, we are given, in 3 years he will be twice as old as his brother.

So, we can write

Age of Adrian = 2 (Age of Jose)

x+11 = 2(x+3)

x+11=2x+6

2x-x=11-6

x=5

So, we get value of x = 5

Now, the present ages will be:

Age of Jose = x = 5 years

Age of Adrian = x+8 = 5+8 = 13 years

Adrian is 8 years older than his brother, Jose. In 3 years, he will be twice as old as his brother. Find the present age of each.

Let's represent the age of Jose as [tex]\large\rm x[/tex]

According to the problem, Adrian is 8 years older than Jose, so Adrian's age can be represented as [tex]\large\rm x + 8[/tex].

In 3 years, Adrian's age will be [tex]\large\rm (x + 8) + 3[/tex] and Jose's age will be [tex]\large\rm (x + 3)[/tex].

The problem also tells us that in 3 years, Adrian will be twice as old as Jose:

[tex]\Large\begin{aligned}\rm{(x + 8) + 3}& =\rm{2(x + 3)}\\\rm{x + 11}&=\rm{2x +6}\\\rm{\cancel{x\red{-x}} + 11}&=\rm{2x \red{-x} + 6}\\\rm{11}&=\rm{x + 6}\\\rm{11\red{-6}}&=\rm{x + \cancel{6\red{-6}}}\\\bold{5}&=\rm{x}\end{aligned}[/tex]

So Jose is currently 5 years old.

To find Adrian's age, we can use the fact that Adrian is 8 years older than Jose:

[tex]\Large\begin{aligned}\rm{Adrian's\: age}& =\rm{x + 8}\\\rm{Adrian's\: age}&=\rm{\red{5} + 8}\\\rm{Adrian's\: age}&=\bold{13}\end{aligned}[/tex]

Therefore:

[tex]\\\\[/tex]

For more information visit these links:

https://brainly.com/question/16552827

https://brainly.com/question/29159374

https://brainly.com/question/9051590

Answer:

○ [tex]\displaystyle [\frac{1}{2}, ∞[[/tex]

Step-by-step explanation:

All you want to do is set the radical equal to zero to determine your domain, and sinse substituting [tex]\displaystyle \frac{1}{2}[/tex] in for [tex]\displaystyle x[/tex] would make this 0, it would be the INCLUDED endpoint, so your bracket faces [tex]\displaystyle \frac{1}{2},[/tex] then continues on infinitely.

I am joyous to assist you at any time.

**The ONLY time this is not the case is when you have a rationale-radical function, in which you must never have 0 in the denominatour.

Answer:

D.

x 2 -2 4 -4

y 8 8 12 12

Step-by-step explanation:

the x values should never ever repeat for the y values.

Answer:

SAS

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

By trial and error.

A: 50*12-100=500, 50*15-100=650. (A is not correct)

B: 500(12-11)=500, 500(15-11)=2000. (B is not correct)

C: 300(12-12)+500=500, 300(15-12)+500=1400. (if you continue try the numbers, you will see that this is the correct answer)

D: 200(12-5)+400=1800. (D is not correct)

Answer:

939/x    8.38/100

x8.38     93900

x= 11205.25

Step-by-step explanation:

Answer:

30!

Step-by-step explanation:

I took the Quiz!

Answer:If you simplify it will be 7a−12b−4

Step-by-step explanation: Yes

Answer:

X=7

Step-by-step explanation:

So first add them all up

x-2+2x+x+3=4x+1

4x+1=29

4x=28

x=7

Answer:

y=-2/3x

Step-by-step explanation:

if you use the graphing calculator, the y intercept of the equation is 0 therefore y=mx

m=-2/3

the slope intercept equation is y=-2/3x

Answer:

135 small cubes fill the prism

Step-by-step explanation:

Find the volume of the prism.

V = l * w * h

l = 2 1/4 = 2.25

w = 3/4 = 0.75

h = 1 1/4 = 1.25

V = 2.25 * 0.75 * 1.25

V = 2.109375

I wouldn't round this quite yet.

V of 1 small cube = 1/4 * 1/4 * 1/4 = .015625

So divide the volume of the prism by the volume of the small cube

2.109375/0.015625 = 135

Answer:

I think its......false (I tried)

Step-by-step explanation:

Answer:

n=2 see the pic above

Step-by-step explanation:

i am very sure

Answer:

N = 2

Step-by-step explanation:

I got this answer right on Khan Academy.

Hope this helps! :)

Answer: 11:7

Step-by-step explanation:

66 is divisible by 6 = 11

42 is divisible by 6 = 7

GIVE BRAINLIEST!

Answer:

a = 9, b = 11

x = 2, y = 17

Step-by-step explanation:

opposite sides are equal in a parallelogram!

Answer:

36

Step-by-step explanation:

We can use the is/of=%/100 proportion...

x  =  90

40    100

First, we need to multiply 90 by 40. 90x40=3,600.

Next, we have to divide 3,600 by 100. 3,600/100=36.

Rose needs to get 36 questions correct to get at least a 90%.

Hope this helps!! Have a great day C:

Answer:

-51

Explanation:

[tex]=17\left(-3\right)\\\\=-51[/tex]

Answer:

-51

Step-by-step explanation:

because you add the parenthesis first so 17, and you times that by -3

Answer:

r = 7/4

Step-by-step explanation:

Radius is always 1/2 of the diameter.

Answer:

A) For all samples of size 20, the mean of all possible sample proportions is equal to 0.11.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

In this question, we have that:

The proportion workers at a factory who are more than 5 minutes late to work is 0.11. So, by the interpretation of the central limit theorem, the mean of all sample proportions, for samples of size 20, will be of 0.11.

The correct answer is given by option A.

The interpretation of the mean of the sampling distribution will be A. For all samples of size 20, the mean of all possible sample proportions is equal to 0.11.

In conclusion, the best option is A.

Learn more about sampling distribution on:

https://brainly.com/question/17831271

Answer:

I don't know all of these, but I do know some.

Step-by-step explanation:

1. LA ≅ SA Given

2. I'm sorry I don't know this

3. ∠LAT≅∠ SAT and Def of angle bisector for the reason.

4. △LAT≅△ TAS and I believe it's SAS for the reason.

Answer:

Answers in explanation

Step-by-step explanation:

LA ≅ SA              |  Given

TA ≅ TA              |  Reflexive Property

∠LAT ≅ ∠SAT    |  Definition of angle bisector

△LAT ≅ △SAT   |  SAS

Answer:

First table

Step-by-step explanation:

In a table of a proportional relationship, there is always some number that you can multiply by the number in the first column to get the number in the second column for any row. This number is called the constant of proportionality. In the fruit juice example, the constant of proportionality is 0.4.

Answer:

X  =  9

Step-by-step explanation:

Answer:

(x,y) -> (x + 8, y - 3)

Step-by-step explanation:

Move any point to the right 8 units, and down 3 units. You are just translating the shape, not dilating, reflecting, or rotating it.

Answer:

∠3 and ∠1 are correct

Step-by-step explanation:

adjacent angles are next to each other with a common vertexand side

Answer:

46701813038

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Cool