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r-ruslan [8.4K]

2 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

1 answer:

earnstyle [38]2 years ago

7 0

Answer:

got to get some point for my questions sorrry

Step-by-step explanation:

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Please help i'm so confused

kherson [118]

$\bf \begin{cases}
x=0\implies &(x)=0\\
x=2\implies x-2=0\implies &(x-2)=0\\
x=-5\implies x+5=0\implies &(x+5)=0
\end{cases}
\\\\\\
(x)(x-2)(x+5)=\textit{3rd degree polynomial}$

8 0

2 years ago

How to distribute 6 x(3+4) =56

dalvyx [7]

6x(3+4)56
Step 1 6x(3)=

4 0

2 years ago

Solve three and two fifths plus three and four sixths

Rasek [7]

Answer:

7 1/15

Step-by-step explanation:

3 2/5 + 3 4/6 = 7 1/15

4 0

1 year ago

Read 2 more answers

8y-9y , show work even tho i know it’s not a lot !

Dmitrij [34]

Answer:

-1y or -y

Step-by-step explanation:

8-9 =-1

substtute for y and there ya go

4 0

2 years ago

We want to factor the following expression:

S_A_V [24]

Answer:

A. (U+V)^2 or (U-V)^2

Step-by-step explanation:

$9x^6 + 6x^3y + y^2 \\ \\ = {(3 {x}^{3} )}^{2} + 2.(3x^3).y +( y)^2 \\ \\ = \bigg({3 {x}^{3} } + y \bigg)^{2} \\ \\ = \bigg({3 {x}^{3} } + y \bigg) \bigg({3 {x}^{3} } + y \bigg) \\ \\ \\ \\$

4 0

1 year ago