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maw [93]
3 years ago
13

THIS IS VERY SIMPLE BUT I GET CONFUSED SOMETIMES LOL

Mathematics
2 answers:
Bogdan [553]3 years ago
7 0

Answer:

the answer is 24

Step-by-step explanation:

15-(-9)=24

Phantasy [73]3 years ago
7 0
Answer: -24°

15°-24°= -9°
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What is the formula to find the volume of the solid ?
MakcuM [25]

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Step-by-step explanation:

Volume = 4πr³/3

Solid shape is a sphere. r ----> radius

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3 years ago
How many solutions does 10+5x/15=4 have
strojnjashka [21]

Answer:never give up

Step-by-step explanation:

Yo

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The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i
MrRissso [65]

Answer:

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

7 0
3 years ago
PLS PLS PLS PLS PLS PLS PLS HELP MEH WITH THIS MATH PROBLEM I NEED TO GET IT RIGHT!
kozerog [31]

Answer:

A

Step-by-step explanation:

Any number that have the | | symbol will automatically be positive

For example

| -5.8 | = 5.8

6 0
3 years ago
What is the solution to the inequality?<br> <br> 10x + 18 &lt; -2
padilas [110]
Let's solve your inequality step-by-step.

<span><span><span>10x</span>+18</span><<span>−2

</span></span>Step 1: Subtract 18 from both sides.

<span><span><span><span>10x</span>+18</span>−18</span><<span><span>−2</span>−18

</span></span><span><span>10x</span><<span>−20

</span></span>Step 2: Divide both sides by 10.

<span><span><span>10x/</span>10</span><<span><span>−20/</span>10

</span></span><span>x<<span>−2

</span></span>Answer:

<span>x<<span>−<span>2</span></span></span>
4 0
3 years ago
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