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3 years ago

Help with 42 and 45 please I need it due tomorrow

Mathematics

1 answer:

mariarad [96]3 years ago

3 0

The answer to 45 is B it drops 7 degrees to noon til midnight

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Identify the x- and y-intercepts 10x + 4y = -20

slavikrds [6]

Answer:

x-intercept: -2

y-intercept: -5

Step-by-step explanation:

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3 years ago

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zavuch27 [327]

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3 years ago

Mike went to his local zoo that featured 12 reptile exhibits. If the zoo features 40 exhibits in total, then what percent of the

zepelin [54]

Answer:

30%

Step-by-step explanation:

The local zoo contained 40 exhibits in total. It contained 12 reptile exhibits.

The percentage of the zoo's exhibits that feature reptiles is gotten by dividing the number of reptile exhibits by the total exhibits and then, multiplying by 100:

=> (12 / 40) * 100

= (3 / 10) * 100 = 300 / 10

= 30%

30% of the zoo's exhibits feature reptiles.

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3 years ago

A simple linear regression analysis was conducted to predict the Exam 3 score of students in STA 2023 based on their Exam 1 scor

Nina [5.8K]

Answer:

Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

Step-by-step explanation:

We are given the following in the equation:

$y(x) = 50.57+0.4845x$

where, above equation is a linear regression equation to predict the Exam 3 score of students in STA 2023 based on their Exam 1 score.

Here,

y is the dependent variable that is score of exam 3.

x is the independent variable that is the score of exam 1.

Comparing the given equation to a linear equation, we have,

$y = mx + c$

Slope, m = 0.4845

Intercept, c = 50.57

We define the slope as rate of change.

If there is a increase in x by 1 unit, then,

$y(x) = 50.57+0.4845x\\y(x+1) = 50.57+0.4845(x+1)\\y(x+1)-y(x) = 50.57+0.4845(x+1)-50.57-0.4845x\\y(x+1)-y(x) = 0.4845(x+1-x)\\y(x+1)-y(x) = 0.4845$

Thus, we can interpret the slope of the line as

Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

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3 years ago

How can the Angle-Angle Similarity Postulate be used to prove the two triangles below are similar? Explain your answer using com

Irina18 [472]

Angle-angle similarity means that if a triangle has two angles some measure the triangles will be similar.

It is true because if the two angles of the triangles are equal, the third angle should also be equal using the interior angles of a triangle is 180. If the three angles of a triangle are all same measure, then the two triangles should be similar.

4 0

3 years ago

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