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3 years ago

Sorry if this pic looks wack but if anyone could help out w/ this thanks lol

Mathematics

2 answers:

NikAS [45]3 years ago

7 0

The answer is for shire 6

Anna [14]3 years ago

3 0

The answer is 6
(I THINK)

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Solve. 164+56-[3+4+1]=

alukav5142 [94]

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3 years ago

30+5y_>4x I need the answer ASAP

Gre4nikov [31]

30+5y_>4x
5y_>4x-30
The answer is: y_>(4/5)x-6

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3 years ago

What must be a factor of the polynomial function f(x) graphed on the coordinate plane below?

Mamont248 [21]

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Step-by-step explanation:

X+6

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3 years ago

How i can do this step by step <br>If y= (x+3)^2, then (-2x-6)^2

zhenek [66]

$(-2x-6)^2=(-2(x+3))^2=(-2)^2\cdot(x+3)^2=4(x+3)^2=4y$

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3 years ago

You would like to know whether forwards in a basketball league average the same (or different) numbers of points than the overal

Akimi4 [234]

Answer:

The critical t-value for such a test given an alpha level of 0.05 is 2.26

Step-by-step explanation:

Null hypothesis : $H_0:\mu = 7.5$

Alternate hypothesis : $H_a:\mu \neq 7.5$

Population mean = $\mu = 7.5$

Data : 10, 9, 6, 11, 13, 14, 9, 9, 9, and 10

Mean = $\bar{x}=\frac{\text{Sum of all observations}}{\text{no. of observations}}$

Mean = $\frac{10+9+6+11+13+14+9+9+ 9+ 10}{10}$

Mean =10

Standard deviation : $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}$

Standard deviation : $\sqrt{\frac{(10-10)^2+(9-10)^2+(6-10)^2+(11-10)^2+(13-10)^2+(14-10)^2+(9-10)^2+(9-10)^2+(9-10)^2+(10-10)^2}{10}}$

Standard deviation s :2.144

$t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}t = \frac{10-7.5}{\frac{2.144}{\sqrt{10}}}t=3.687$

Df = n-1 = 10-1 = 9

T critical = $t_{(df,\alpha)}=t_(9,0.05)=2.26$

T calculated > T critical

So, We failed to accept null hypothesis

Hence the critical t-value for such a test given an alpha level of 0.05 is 2.26

5 0

3 years ago