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3 years ago

!WILL GIVE BRAINLIEST IF YOU ARE CORRECT!!!

Mathematics

2 answers:

romanna [79]3 years ago

7 0

Answer:

Step-by-step explanation:

<u><em>by analysing the given table</em></u>

1.33 --> 1.6 --> 1.75 --> 1.875

Angela --> Elaine --> Sarah --> Debbie

aleksandr82 [10.1K]3 years ago

6 0

Answer:

Angenla, Elaine, Sarah, Debbie [100% Correct]

Step-by-step explanation:

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At a school play, an elementary school is accepting donations for a toy drive. An average donation of $8 per person is anticipat

velikii [3]

Answer:

sorry

Step-by-step explanation:

7 0

3 years ago

Amtrak s annual passenger revenue for the years 1980 2000 is modeled approximately by the formula R = -40 |x - 11| + 990 where R

Alecsey [184]

Answer:

Step-by-step explanation:

Given, Annual passenger revenue for the years 1980 to 2000 id=s modeled with the formula $R=-40|x-11|+990$ .

Here, $R$ is the annual revenue in millions of dollars, $x$ is the number of years since January 1, 1980.

Revenue in a year was $ 790 million.

So, $R=790\\-40|x-11|+990=790\\40|x-11|=200\\|x-11|=5\\x-11=5\text{ (or) }x-11=-5\\x=16\text{ (or) }x=6$

So, after 6 yrs and 16 yrs from January 1, 1980, the Passenger revenue equals $ 790 million.

∴ Passenger revenue equals $ 790 million in 1986 and 1996.

3 0

3 years ago

Anyone know what the answer is???(sorry if it’s unclear)

Sergio [31]

The laws of exponents I will be using are:

$(x^y)^z = x^{yz}$ , and $x^y \cdot x^z = x^{y+z}$ .

For the first part, $(15^3)^3 \cdot 15^{-6} = 15^9 \cdot 15^{-6} = 15^3$ .

For the second part, $15 \cdot (15^3)^2 \cdot (15^{-5})^2 = 15 \cdot (15^6) \cdot (15^{-10}) = 15^{1+6-10} = 15^{-3} = \frac{1}{15^3}$ .

5 0

3 years ago

Step 1 of 3: Each year a nationally recognized publication conducts its Survey of America’s Best Graduate and Professional Schoo

lukranit [14]

Answer:

Step-by-step explanation:

Hello!

Given the variables

Y: Starting salary of a graduate at a top business school

X: GMAT score of the business school

The sample used had a size n=20

The estimated regression equation was ^Y= -92040 + 228Xi

The correlation coefficients were r= 0.81

You need to know if r is statistically significant at a 0.05 level:

Assuming the hypotheses are:

H₀: There is a linear correlation between the variables of interest

H₁: There is no linear correlation between the variables of interest

α: 0.05

This test is two-tailed.

The p-value for a r=0.81 and n=20 is 0.000015

Using the p-value approach, the decision rule is:

If p-value ≤ α, reject the null hypothesis

If p-value > α, do not reject the null hypothesis

In this case, the p-value is less than α, the decision is to reject the null hypothesis.

At a 5% level, you can conclude that the coefficient of correlation is statistically significant.

4 0

3 years ago

2/3 of a class are girls. A) what is the ratio girls to boys in the class? B) what is the ratio boys to girls in the class

tekilochka [14]

a) 2:1

b) 1:2

2/3 are girls so 1/3 are boys

5 0

3 years ago