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3 years ago

Pls help if you only know the correct answer! Thanks!

Mathematics

2 answers:

Vlad [161]3 years ago

8 0

Answer:

A-1.5

B-(-1/3)

C-(-4/3)

Step-by-step explanation:

andrey2020 [161]3 years ago

3 0

Answer:

A-1.5

B-(-1/3)

C-(-4/3)

I have seen the title of this question before, so I know how to do it.

Hope can help you.

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Given a population that meets the conditions of a normal distribution, samples taken at random will also be normally distributed

Phantasy [73]

This statement is TRUE.

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3 years ago

What is the pressure difference Δp=pinside−poutside? Use 1.28 kg/m3 for the density of air. Treat the air as an ideal fluid obey

Sidana [21]

This is an incomplete question, here is a complete question.

A hurricane wind blows across a 7.00 m × 12.0 m flat roof at a speed of 150 km/h.

What is the pressure difference Δp = p(inside)-p(outside)? Use 1.28 kg/m³ for the density of air. Treat the air as an ideal fluid obeying Bernoulli's equation.

Answer : The pressure difference will be, $1.11\times 10^3Pa$

Step-by-step explanation :

As we are given:

Speed = 150 km/h = 41.66 m/s

Density = $\rho=1.28kg/m^3$

Area = A = 7.00 m × 12.0 m

Formula used :

$\Delta P=\frac{1}{2}\times \rho \times v^2$

Now put all the given values in this formula, we get:

$\Delta P=\frac{1}{2}\times (1.28kg/m^3)\times (41.66m/s)^2$

$\Delta P=1.11\times 10^3Pa$

Thus, the pressure difference will be, $1.11\times 10^3Pa$

7 0

4 years ago

Sharon wants to buy a shirt that costs $60. The sales tax is 5%. How much is the sales tax? What is her total cost for the shirt

Ivahew [28]

Answer:

$3 sales tax

$63 total cost

Step-by-step explanation:

5% of 60 is 3, so that'd be 60 + 3 which is 63, or $63

hope this helps!!!

stay safe!!!

4 0

4 years ago

Read 2 more answers

Experience shows that a ski lodge will be full (161 guests) if there is a heavy snow fall in December, while only partially full

Eva8 [605]

Answer:

Expected number of guests is 100.4.

Step-by-step explanation:

It is given that there are 161 guest if there is a heavy snow fall.

Also, the probability for a heavy snow fall is 0.40.

Therefore, P(X = 161) =0.4.

It is also given that there are 60 guests if there is a light snow fall.

The probability for a light snow fall is 1 - 0.4 = 0.6.

Therefore, P(X = 60) = 0.6.

Expected number of guests = (161)P(X = 161) + (60)P(X = 60)

= 161(0.4) + 60(0.6)

= 64.4 + 36

= 100.4

7 0

4 years ago

Is this congruent by SSS, SAS, AAS, ASA? :))

schepotkina [342]

Answer:

By AAS axiom

Step-by-step explanation:

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3 years ago

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