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r-ruslan [8.4K]
4 years ago
6

The scores on a test given to all Júniors in a school district are normally distributed with a mean of 74 and a standard deviati

on of 8 find the percent of juniors whose score is no more Than 90
Mathematics
1 answer:
earnstyle [38]4 years ago
7 0

Answer:

got to get some point for my questions sorrry

Step-by-step explanation:


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Heather ran 24 miles more than Natalie last
jekas [21]

Answer:

17

Step-by-step explanation:

41 - 24 = 17  

17 + 24 = 41

6 0
3 years ago
I need help with the bottom part help please
lina2011 [118]
12/6=2
40/5=8
20/5=4
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15/5=3
24/6=4
7 0
3 years ago
Read 2 more answers
How do use u substitution?
AlladinOne [14]
In the form of algebra substitution is the method used in simultaneous equations.
E.g    y=2x+5      and      y=5x-1
Solve for x and y
Since we know two examples of what y is, we can substitute one y in replacement of the other to get.
2x+5=5x-1 then we solve for x to get:
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5 0
3 years ago
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What are the factors of 2x^2+3x-54? Check all that apply.
Igoryamba

Hello from MrBillDoesMath!

Answer:

(x + 6) (2 x - 9)

Discussion:

6 and -9 are the factors of the constant term as 6 * (-9) = -54

The x term is given by  -9x + 12x  = 3x   (multiply the factorization out)


Regards,  

MrB




4 0
4 years ago
Sarah’s hand length is 20 cm. She measures the dimensions of her rectangular floor to be 18 by 22 hand lengths. Which of the fol
Temka [501]
Lenght=22 hand*(20 cm/1 hand)=440 cm
width=18 hand*(20 cm/1hand)=360 cm

Area=lenght x width.
Area=440 cm * 360 cm=158,400 cm²≈160,000 cm²

A) 160,000 cm²
7 0
3 years ago
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