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3 years ago

Help Please! :) Fast as you can!

Mathematics

2 answers:

svp [43]3 years ago

7 0

Answer:

A. 5-t

Step-by-step explanation:

Add t to -2t to get -t

Add 3+2 to get 5

swat323 years ago

5 0

It’s d, 1 - t

t + 3 - 2 - 2t
we can rearrange it as
t - 2t + 3 - 2
-t + 1 is the same as 1 - t

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The table shows the age of the swimmes on Dions swims team. Find the mean age of the swimmers om the team?

PilotLPTM [1.2K]

Hello!

If we want to find the mean (average) of any set of numbers, all you need to do is add the set together, then divide by how many numbers are in the set.

When we add all the numbers we get: 100

Next we just divide by the number of people which is 10: 100 divided by 10 is 10

So, the mean age of the swimmers on the team is an even number of 10.

3 0

3 years ago

What is the true solution to the logarithmic equation?<br>log2 [log2(sqrt4x)]=1

erastova [34]

Answer:4

Step-by-step explanation:

log₂[log₂(√4x)] = 1

log₂2 =1

So we replace our 1 with log₂2

log₂[log₂(√4x)] = log₂2

log₂ on bothside will cancel each other.

We will be left with;

[log₂(√4x)] = 2

log = power of exponential

√4x = 2²

√4x = 4

Square bothside

(√4x)² = 4²

4X = 16

Divide bothside by 4

4x/4 = 16/4

x = 4

8 0

3 years ago

Read 2 more answers

When a fraction of 17 is taken away from 17 what remains exceeds 1/3 of 17 by 6

MrRissso [65]

1/3×17/1=51/1

51+6=57

4 0

3 years ago

A person must score in the upper 8% of the population on an IQ test to qualify for membership in MENSA, the international high-I

Cloud [144]

Answer:

A person must get an IQ score of at least 138.885 to qualify.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 115, \sigma = 17$