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taurus [48]
3 years ago
11

15+(-11)+17=? sjow how you got the answer

Mathematics
1 answer:
Tresset [83]3 years ago
8 0

Answer:

21

Step-by-step explanation:

15 - 11 +17

plug in calculator

or 15-11 = 4

and  

4 +17 = 21

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Using the formula for initial velocity h=-16t2+VT the height of any object can be found by the time, Annalee serves a volleyball
Zolol [24]

Answer:

evvvvvvvvv

Step-by-step explanation:

errrrrrrrrrrrrrrv

5 0
2 years ago
3/2x+2.3-1/2x=4.3+x number of solutions
Zarrin [17]
Answer: all real number / infinity €

15x+23-5x=43+10x
10x+23=43+10x
23=43
€
6 0
3 years ago
In a survey of 468 registered voters, 152 of them wished to see Mayor Waffleskate lose her next election. The Waffleskate campai
wariber [46]

Answer: b. Yes

Step-by-step explanation: Confidence Interval for a population proportion is calculated as:

p ± z\sqrt{\frac{p(1-p)}{n} }

where

p is the sample proportion

n is sample size

z is z-score, in this case, as it is 95%, z-score=1.96

Calculating confidence interval:

p=\frac{152}{468}

p = 0.3248

0.3248 ± 1.96\sqrt{\frac{0.3248(0.6752)}{468} }

0.3248 ± 1.96\sqrt{0.000468}

0.3248 ± 0.0425

Interval: 0.2823 < μ < 0.3673

The interval means we are 95% sure the true mean is between 0.2823 and 0.3673. As the campaign claims a proportion of no more than 0.32 of the voters wants to see Mayor Waffleskate defeated and the number is in the confidence interval, the claim is supported.

4 0
3 years ago
State whether the following is perpendicular or parallel x+3y=6 x+3y=-3​
lesantik [10]

Answer:

parallel

Step-by-step explanation:

When put in slope intercept form, both have a slope of -1/3. Since they share the same slope, the lines are parallel.

3 0
3 years ago
Gina can type a proposal in 90 minutes. It takes 45 minutes. How long would it take to type the proposal working together?
Flura [38]

It will take 30 minutes to type the proposal when working together.

Step-by-step explanation:

Given that Gina types a proposal in 90 minutes.The other person types a proposal in 45 minutes. If working together then you can calculate as follows;

In 1 minute, Gina types 1/90 of the proposal

In 1 minute, the other person types 1/45 of the proposal

When working together, they write 1/90+1/45 =3/90 of the proposal in 1 minute

So it will take 90/3 minutes to write the proposal when working together.

90/3 minutes = 30 minutes

Learn More

Applied math :brainly.com/question/13454390

Keywords: proposal, working, type

#LearnwithBrainly

4 0
3 years ago
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