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Luba_88 [7]
3 years ago
11

HELP ME PLEASEEEEEEEEEEEEEEEEEEE

Mathematics
1 answer:
aniked [119]3 years ago
3 0

Answer:

the last one :)

Step-by-step explanation:

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The correct and best answer will be marked as brainiest
marta [7]

Answer:

x=10

m=3

Step-by-step explanation:

The angles are the same since the sides are the same length (isosceles triangle)

55 = 5x+5

Subtract 5

55-5 =5x+5-5

50 = 5x

Divide by 5

50/5 = 5x/5

10=x

The altitude is a perpendicular bisector so

5m-3 = 2m+6

Subtract 2m from each side

5m-3-2m = 2m+6-2m

3m-3 = 6

Add 3 to each side

3m-3 +3 =6+3

3m =9

Divide by 3

3m/3 = 9/3

m =3

8 0
3 years ago
suppose that the distribution for total amounts spent by students vacationing for a week in florida is normally distributed with
pentagon [3]

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is 0.8132.

Let x be the total amount spent by students.

x follows normal distribution with mean μ = 650,

                                  standard deviation δ = 120

We take a simple random sample of size n = 10

We are asked to find average spending of 10 students ( x ) is between 600 and 700

We have to find P( 600 <= x <= 700)

According to the sampling distribution of the sample mean x, it follows an approximately normal distribution with mean μ{x} = μ and standard deviation  δ{x} = {δ}/{√n}

Therefore here mean of x,( μ{x} ) = 650 and

standard deviation of x, δ{x} = {120}/{√10} = 37.9473

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is,

Let Z= x - μ / δ

Z₁ = 600 - 650 / 37.9473 = -1.32 similarly

Z₂ = 700 - 650 / 37.9473 = 1.32

From standard normal distribution table, P( -1.32 <  x  <  1.32) = 0.8132

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is 0.8132

To learn more about Normal distribution click here:

brainly.com/question/15103234

#SPJ4

3 0
1 year ago
Please help I beg please oh please I’ll give brainliest to whoever answers
Darya [45]

Answer: The third option is correct

Step-by-step explanation: With increased trials, experimental probability will grow closer to theoretical probability. Blue pens make up 1/2 of the probability pool.

8 0
3 years ago
The sum of three consecutive numbers is 153. What is the smallest of the three numbers ?
astra-53 [7]
n;\ n+1;\ n+2 - \text{three consecutive numbers}\\\\(n)+(n+1)+(n+2)=153\\\\n+n+1+n+2=153\\\\3n+3=153\ \ \ \ |-3\\\\3n=150\ \ \ \ |:3\\\\n=50


Answer: 50
6 0
3 years ago
Find the surface area of the pyramid. The side lengths of the base are equal.
Cerrena [4.2K]

Answer:

God Loves you

Step-by-step explanation:

Because he died for you.    "John 3,16"

4 0
2 years ago
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