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inna [77]
3 years ago
7

Brainliest need help

Mathematics
1 answer:
erastova [34]3 years ago
4 0

Answer:

p(71 <  \times  < 85) \\  = p( \frac{71 - 78}{4}  < z <  \frac{85 - 78}{4} ) \\  = p( - 1.75 < z < 1.75) \\  =1 -  (\phi(1.75)) \\  = 0.46  \times 100\%\\  = 46\%

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HELP PLEASE ITS DUE TOMMOROW AND I HAVE 2 TESTS TO TAKE TODAY D:
Mashcka [7]

Answer:

x=25

x=47

y=25 x=10

y=20

Step-by-step explanation:

2x+10=60

-10 -10

2x=50

2x/2=50/2

x=25

2x+6=100

-6 -6

2x=94

2x/2=94/2

x=47

5y-25=100

+25 +25

5y=125

5y/5=125/5

y=25

11x-30+100=180

11x+70=180

-70 -70

11x=110

11x/11=110/11

x=10

7y-10=3y+70

+10 +10

7y=3y+80

-3y-3y

4y=80

4y/4=80/4

y=20

hopefully this helps :)

8 0
3 years ago
Panel 1 is the answer choice<br><br> Panel 2 is the question
Ierofanga [76]
D is the midpoint of A and B
A = (0,s)
B = (r,0)

Add up the x coordinates to get 0+r = r. Then cut that in half to get r/2
Similarly, do the same for the y coordinates: s+0 = s ---> s/2

So the location of point D is (r/2, s/2)

Answer: Choice C
8 0
3 years ago
Which of the following is a factor of 24x6 − 1029y3?
amid [387]

Answer:

The answer to your question is only the second and the third are factors.

Step-by-step explanation:

Find the factors of               24x⁶ − 1029y³

First find the prime factors of 24 and 1029

  24  2                1029 3

  12   2                  343 7                  Then 24 = 2³3

   6   2                    49  7                         1029 = 7³ 3

   3   3                       7  7

   1                             1

     x⁶ = (x²)³                  y³ = y³

Then

                                  2³3(x²)³  -  7³ 3  y³

Factor 3                    3[  2³(x²)³  -  7³ y³]

Factor                      3 [ (2x² - 7y)(4x⁴ + 14x²y + 49y²)]

Then

24

2x2 + 7y

4x4 + 14x2y + 49y2

All of the above

8 0
3 years ago
Read 2 more answers
What are the coordinates of the point (-8,5) if it is reflected across the x-axis?
podryga [215]
It is d, -8.-5. I did it on paper
4 0
3 years ago
Read 2 more answers
What is the value of the expression below when y=10? 5y+3
trasher [3.6K]
I think it is 53 that’s what i would put if i were u
7 0
3 years ago
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