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kotegsom [21]
2 years ago
14

Use the given numbers above the table in multiplying integers and to fill in the blanks inside the box​

Mathematics
2 answers:
lakkis [162]2 years ago
4 0

Answer:

Step-by-step explanation:

(- 18) × 2 = - 36

(- 7) × (- 5} = 35

1 × (- 10) = - 10

126 × 100 = 12600

I hope I've helped you.

ale4655 [162]2 years ago
4 0

I'm gonna pck your mom right nowsay it your mom

tex]\purple{\rule{45pt}{7pt}}\blue{\rule{45pt}{999999pt}}

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A company decided to test the hypothesis that the average time a company’s employees are spending to check their private e-mails
Degger [83]

Answer:

z=\frac{6.6-6}{\frac{1.7}{\sqrt{40}}}=2.232    

Since is a one sided right tailed test the p value would be:  

p_v =P(z>2.232)=0.0128  

Step-by-step explanation:

Data given and notation  

\bar X=6.6 represent the sample mean

\sigma=1.7 represent the population standard deviation

n=40 sample size  

\mu_o =6 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is higher than 6minutes or no, the system of hypothesis would be:  

Null hypothesis:\mu \leq 6  

Alternative hypothesis:\mu > 6  

If we analyze the size for the sample is > 30 and we know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

z=\frac{6.6-6}{\frac{1.7}{\sqrt{40}}}=2.232    

P-value

Since is a one sided right tailed test the p value would be:  

p_v =P(z>2.232)=0.0128  

5 0
2 years ago
A neighborhood organization wants to know what percent of households want to have a community vegetable garden. The organization
zzz [600]
C) randomly assign each household a number and use a random generator to generate 25 numbers
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3 years ago
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Jose paid $2.50 for 3 apples. At this rate how much would he pay for 12 apples
Ber [7]

Divide 3 apples by $2.50 to get the unit price, $1.20 (The constant of proportionality)
Then multiply 12 apples by the constant ($1.20)
Your final answer should be $14.40

7 0
2 years ago
In XYZ, mX=90 and mY=30.In TUV,mU= 30 and mV=60. Which is true about the two triangles? XYZ=TUV, XYZ= VUT,No congruency statemen
Flauer [41]

Answer:

No congruency statement can be made because the side length are unknown.

Step-by-step explanation:

The sum of the measures of all interior angles in a triangle is always 180°.

In triangle XYZ,

m\angle X=90^{\circ}\\ \\m\angle Y=30^{\circ},

then

m\angle X+m\angle Y+m\angle Z=180^{\circ}\Rightarrow m\angle Z=180^{\circ}-90^{\circ}-30^{\circ}=60^{\circ}

In triangle TUV,

m\angle U=30^{\circ}\\\\m\angle V=60^{\circ},

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Step-by-step explanation:

Use the method of TOA CAH SOH.

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Perimeter of triangle = Sum of all sides =

u \:  +  \: v + 4

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3 years ago
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