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Butoxors [25]
3 years ago
6

There are 100 birds at the zoo. Five of them are blue. What percent of the birds are blue?

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
6 0

Answer:

5% of the birds are blue

Step-by-step explanation:

100×5/100

kirza4 [7]3 years ago
4 0
5 percent of the birds are blue.
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Use a graphing calculator to find the value of the correlation coefficient r to determine if there is a strong correlation among
OlgaM077 [116]

The value for r = - 0.8535 ,  there is strong correlation between the variables.

<h3>What is a correlation coefficient  ?</h3>

Correlation coefficient describes the relationship between the two variables in the data .

The data given is

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Assuming Linear Regression ,

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1 year ago
HELP! Identify the equation of the circle that has its center at (-3, -4) and passes through the origin.
Lunna [17]

Answer:

Option B. (x+3) ^2+(y+4)^2=25

Step-by-step explanation:

we know that

The equation of the circle in standard form is equal to

(x-h)^{2}+(y-k)^{2}=r^{2}

where

(h,k) is the center and r is the radius

step 1

Find the radius of the circle

Remember that the distance of the center and any point on the circle is equal to the radius of the circle

so

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the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

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r=\sqrt{(0+4)^{2}+(0+3)^{2}}

r=\sqrt{(4)^{2}+(3)^{2}}

r=\sqrt{25}

r=5\ units

step 2

Find the equation of the circle

(x-h)^{2}+(y-k)^{2}=r^{2}

the center is the point (-3,-4) and the radius is r=5 units

substitute

(x+3)^{2}+(y+4)^{2}=5^{2}

(x+3)^{2}+(y+4)^{2}=25

6 0
2 years ago
If the area of the rectangle shown is given by the expression 3x2 + 72 - 6and the width is (a + 3), which of the
aleksandr82 [10.1K]

Answer:

3x - 2.

Step-by-step explanation:

The length = area / width.

The area 3x^2 + 7x - 6 = (3x - 2 )(x + 3)

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3 years ago
Help this question has time please its myfinal exam
Zarrin [17]

Answer:

(x,y) = (-0.5,0.5)

Step-by-step explanation:

Given

See attachment

Required

The solution

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