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2 years ago

I HAVE A COMMON ASSESSMENT HELP PLZ!

Mathematics

1 answer:

Kitty [74]2 years ago

3 0

Answer:

A. Reflection

Step-by-Step Explanation:

you're reflecting the line across the x-axis, and that transforms f(x) into g(x).

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Order the numbers from least to greatest.

lakkis [162]

Easiest way to do this is to turn them all to decimals

√5= 2.23
2.5= 2.5
√9/4= 1.5
5/3= 1.66

order least to greatest:
1.5
1.66
2.23
2.5

8 0

2 years ago

Let X = the time between two successive arrivals at the drive-up window of a local bank. If X has an exponential distribution wi

LuckyWell [14K]

Answer:

a) E(X)=1

b) σ=1

c) P(X>1)=0.368

d) P(2<X<5)=0.128

Step-by-step explanation:

We have X: "the time between two successive arrivals at the drive-up window of a local bank", exponentially distributed with λ = 1.

a) We have to compute the expected time between two successive arrivals.

The expected value for X as it is exponentially distributed is:

$E(X)=\dfrac{1}{\lambda}=\dfrac{1}{1}=1$

b) We have to compute the standard deviation of X.

The standard deviation is calculated as:

$\sigma=\dfrac{1}{\lambda}=\dfrac{1}{1}=1$

c) The probability that X is larger than 1 (P(X>1))

We can express the probability as:

$P(X>t)=e^{-\lambda t}\\\\P(X>1)=e^{-\lambda\cdot 1}=e^{-1}=0.368$

d) The probability that X is between 2 and 5 (P(2<X<5))

$P(X>t)=e^{-\lambda t}\\\\\\P(25)\\\\P(2$

4 0

2 years ago

Question 10

KonstantinChe [14]

Answer:

area of the trapezoid=1/2(7+12)×5

=47.5cm

7 0

2 years ago

I will give you Brainiest if you are right.

Oksi-84 [34.3K]

Answer: F. Students 1 and 4.

Step-by-step explanation: Students 1 and 4 because algebraic expressions do not have equal signs, and students 1 and 4 don't have equal signs, as equal signs can be found in algebraic <u>equations</u>.

3 0

2 years ago

You run one lap around a mile track every 8 minutes. Your friend runs around the same track every 10 minutes. You both start at

Ber [7]

Answer:

Step-by-step explanation:

first runs n+1 laps

and second runs n laps in the same time.

so (n+1)8=10n

10n=8n+8

10n-8n=8

2n=8

n=8/2=4

one lap=1 mile

4 laps=4 miles

4+1=5 laps=5 miles.

first runs 5 miles whereas second runs=4 miles.

3 0

2 years ago

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