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just olya [345]
3 years ago
6

Find the slope of the line through each pair of points (-20,-4) and (-12,-10)

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Answer:

y=-3/4x-19

Step-by-step explanation:

Download pdf
Vilka [71]3 years ago
6 0

Answer: -3/4x -19

Use formula y2 - y1

                      x2 - x1

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bagirrra123 [75]
1024 i hope its the answer
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2 years ago
Marley is an avid birdwatcher and is trying to estimate the number of bluejays living in his region he traps 22 Blue Jays and ta
qwelly [4]

Answer:

15 Blue Jays

Step-by-step explanation:

Number of Blue Jays tagged = 22

Number of Blue jays captured = 550

Estimate of the Blue Jay population = 825

We need to find out how many Blue Jays out of 550 were tagged ones. Remember that in the beginning there were no tagged Blue Jays and Marley tagged 22 of them. This means total number of tagged Blue Jays in the entire population is 22. Rest of the blue Jays are not tagged. Marley calculated the estimated Blue Jay population using the proportions.

Assume that from 550, x Blue Jays were tagged. Out of 825 Blue Jays, 22 are tagged. The proportion of tagged Blue Jays in 550 must be equal to the proportion of tagged Blue Jays in entire population. i.e.

x : 550 = 22 : 825\\\\ \frac{x}{550}=\frac{22}{825}\\\\ x=\frac{22}{825} \times 550\\\\x =14.7

Since, the number of Blue Jays cannot be in decimal, we round it up to the nearest integer 15.This means, out of 550 trapped 15 Blue Jays were the tagged ones. Based on this Marley estimated the Blue Jays Population size.

5 0
3 years ago
A town in america has 2400 families and 4200 cars. What is the family : cars ratio? ​
Dmitry [639]

Answer:

4 : 7

Step-by-step explanation:

No. of families = 2400

No. of cars = 4200

Family : Cars

= 2400 : 4200

= 24 : 42

= 6 x 4 : 6 x 7

= 4 : 7

7 0
2 years ago
Read 2 more answers
Simplify the variable expression by evaluating it's numerical part m-13+42-6
goldfiish [28.3K]

ANSWER

m + 23

EXPLANATION

The given expression is

m - 13 + 42 - 6

We regroup the numerical parts to get;

m + 42 - 6 - 13

Now let us simplify the negative numbers.

m + 42 - 19

We now subtract 19 from 42 to get;

m + 23

We can't simplify further

Hence the simplest form is:

m + 23

3 0
3 years ago
I need help remember taking the square root of a number is the inverse/opposite of squaring number
kirill [66]
X will equal 4 because 4^2=4*4 which equals 16
8 0
3 years ago
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