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Art [367]
3 years ago
7

Determine if the two figures are congruent and explain your answer.

Mathematics
1 answer:
Alexus [3.1K]3 years ago
3 0

Answer:

They can be congurent depending on which two figures you are using

Step-by-step explanation:

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Which table does not represent a function?
andrew-mc [135]

the correct option is answer choice D, because there are multiple 2's in the x column with different f(x) values.

4 0
3 years ago
A car moves at a constant speed of 90km/h from a starting point. Another car moves at 70km/h after 2hours from the same starting
patriot [66]

Step-by-step explanation:

are you sure you wrote the problem here correctly ?

because the distance will be 40km after less than half an hour just by the first car driving. way before the second car even starts.

to be precise, it would be after 60 minutes × 40 / 90

(= how many minutes of an hour are needed to reach 40km while going 90km/h) :

60 × 40 / 90 = 60 × 4 / 9 = 20 × 4 / 3 = 80/3 = 26.67 minutes.

but maybe the question was about 400km distance between the two cars.

so, the first car goes 90km/h for 2 hours.

at that moment it will be 2×90=180km ahead.

that would mean that 220km are still missing for the 400km assumption.

with each hour driving the first car makes 20km more than the second car.

to build up 220km that way would require

220/20 = 11 hours.

plus the 2 original head start hours this would make 13 hours as overall answer.

7 0
3 years ago
Knowing the population standard deviation, a 95% confidence interval infers that the population mean ___________. is between 0 a
nevsk [136]

Answer:

within ±1.96 standard deviations of the sample mean

Step-by-step explanation:

A 95% confidence interval is found using the formula C = 1 - α, and some other stuff, but let's focus on that for now. Using the formula:

.95 = 1 - α

α = .05

If α = .05, that means a 2-sided confidence interval would be found using the sample mean and the Z-score Z(subscript α/2), or Z.₀₂₅ because α AKA .05 divided by 2 = .025. From there, you take this either to your calculator or a Z-table (or perhaps you have a chart that lists the common CI values), and see that for the area to be .025 beneath a standard normal curve, your Z value is ±1.96 ("plus or minus" because we're considering a 2-sided confidence interval).

3 0
3 years ago
3(n+8)=13<br> Gizmos Solving Algebraic Equations 2
Readme [11.4K]

Answer:

n= - 11/3

Step-by-step explanation:

3(n+8)=13

3n+24=13

3n=13-24

3n-11

n= - 11/3

6 0
3 years ago
PLEASE HELP<br> I will give five stars and a thanks and brainly
PilotLPTM [1.2K]

Answer:

We can divide an algebraic term by another algebraic term to get the quotient. The steps below show how the division is carried out.

We can multiply two algebraic terms to get a product, which is also an algebraic term.

Step-by-step explanation:

3 0
2 years ago
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