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Zolol [24]
2 years ago
9

The coordinates of point T are (7,-13). The midpoint of ST is (7,-8).Find the coordinates of point S.

Mathematics
1 answer:
RoseWind [281]2 years ago
8 0

Answer:

(7, -3)

Step-by-step explanation:

The midpoint formula is (a+b)/2

For the x coordinate: 7 = (7 + x) / 2 --> 14 = 7 + x --> x = 7

For the y-coordinate: -8 = (-13 + y)/2 --> -16 = -13 + y --> y = -3

hopefully this helps! <3

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Math Help? 20 Points
Pachacha [2.7K]

V= LWH so 3.75cm^3 or 3 (3/4)


Multiply those three sides and it comes out to 3.75


5 0
3 years ago
The number of years of education of self-employed individuals in the united states has a population mean of 13.6 years and a pop
muminat

Answer:

0.3 years

Step-by-step explanation:

With problems like these, I always like to start by breaking down the information into smaller pieces.

μ = 13.6

σ = 3.0

Survey of 100 self-employed people

(random variable) X = # of years of education

So now we have some notation, where μ represents population mean and σ represents population standard deviation. Hopefully, you already know that the sample mean of x-bar is the same as the population mean, so x-bar = 13.6. Now, the question asks us what the standard deviation is. Since the sample here is random, we can use the Central Limit Theorem, which allows us to guess that a distribution will be approximately normal for large sample sizes (that is, n ≥ 30). In this case, our sample size is 100, so that is satisfied. We're also told our sample is random, so we're good there, too. Now all we have to do is plug some stuff in.

The Central Limit Theorem says that for large values of n, x-bar follows an approximately normal distribution with sample mean = μ and sample standard deviation = σ/√n. So, with that info, all we need to do to find the standard deviation of x-bar is to plug our σ and n into the above formula.

σ(x-bar) = σ/√n

σ(x-bar) = 3.0/√100

σ(x-bar) = 0.3

So your answer here is .3 years.

7 0
3 years ago
2.5 % of what is 2.21 ?
lawyer [7]

2.5% * y = 2.21
.025 * y = 2.21
y = 2.21/.025
y = 88.4
2.5% of 88.4 is 2.21
4 0
3 years ago
Help pls ill give brainlist
Effectus [21]

It Will Be option A ok 2r -6'²

5 0
3 years ago
Read 2 more answers
Alan wants to buy a bike that has a regular price of $169. This week the bike is on sale at a 35% discount.
sammy [17]

Answer:

Alan can buy the bike for $109.85

Step-by-step explanation:

Start with 100% and subtract the 35% discount.  This results in 65%.  The bike sells for 65% of $169, which is calculated as follows:

0.65($169) = $109.85

Alan can buy the bike for $109.85 under the terms of this sale.

6 0
3 years ago
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