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4 years ago

The equation of the circle whose center is at (4.4) and whose radius is 5 is

Mathematics

1 answer:

zloy xaker [14]4 years ago

7 0

Answer:

(x-4)^2+(y-4)^2=25

Step-by-step explanation:

the standard equation of a circle is (x-h)^2+(y-k)^2=r^2 where (h,k) are the coordinates of the center and r is the radius. In your case, just plug your the numbers into the equation

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Vicky has a collection of identical rectangular prisms, each with dimensions of 9 centimeters (cm) by 8 centimeters by 10 centim

Mariulka [41]

Answer:

7200 cm^3

Step-by-step explanation:

Volume=LWH so V=9*8*10 so 720*10=7200 so 7200 cm^3

5 0

3 years ago

Read 2 more answers

Помогите, пожалуйста

Cerrena [4.2K]

6 - 2х² = 6 - 2(-8)² = 6 - 2(64) = 6 - 128 = -122

$\displaystyle\tt a^{11}\cdot a^{14}=a^{11+14}=a^{25}\\\\a^{18}:a^{14}=a^{18-14}=a^4\\\\(a^5)^4=a^{5\cdot4}=a^{20}\\\\(5x)^4=5^4\cdot x^4=625x^4\\\\\bigg(\frac{a}{3}\bigg)^6=\frac{a^6}{3^6}=\frac{a^6}{729}$

$\displaystyle\tt \frac{14^{16}\cdot14^{6}}{14^{21}}=14^{16+6-21}=14^1=14\\\\\\ \frac{7^{8}\cdot7^{5}}{7^{11}}=7^{8+5-11}=7^2=49\\\\\\ (12^2-11^2)^2+(6^5+2^9)^0=(144-121)^2+1=23^2+1=529+1=530$

$\displaystyle\tt 3^{8x}=81\\\\3^{8x}=3^4\\\\8x=4\\\\x=\frac{4}{8}=\frac{1}{2}=0.5$

$\displaystyle\tt \frac{64^{6}}{4^{4}\cdot4^{16}}=\frac{(4^3)^{6}}{4^{4+16}}=\frac{4^{3\cdot6}}{4^{20}}=\frac{4^{18}}{4^{20}}=\frac{1}{4^{2}}=\frac{1}{16}$

5 0

4 years ago

He design on Santana's wall includes 16 pink stripes and 20 green stripes. Find the pink stripes to green stripes?

bija089 [108]

Well the ratio is 16:20 which it 16/20. We can simplify that to 4/5. Therefore the ratio from pink stripes to green stripes will be 4:5

6 0

3 years ago

Please help me !!!!!!!!!!

maria [59]

Answer:

$EF=6$

Step-by-step explanation:

In this problem, one is given a circle with two secants (that is a line that intersects a circle at two points). One is given certain measurements, the problem asks one to find the unknown measurements.

The product of the lengths theorem gives a ratio between the lengths in the secants. Call the part of the secant that is inside the circle (inside), and the part of the secant between the exterior of the circle and the point of intersection of the secants (outside). The sum of (inside) and (outside) make up the entire secant, call this measurement (total). Remember, there are two secants, ( $secant_1$ ) and ( $secant_2$ ) in this situation. With these naming in mind, one can state the product of the length ratio as the following:

$\frac{total_1}{outside_2}=\frac{total_2}{outside_1}$

Alternatively, one can state it like the following ratio:

$\frac{inside_1+ouside_1}{outside_2}=\frac{inside_2+outside_2}{outside_1}$

Apply this ratio to the given problem, substitute the lengths of the sides of the secants in and solve for the unknown.

$\frac{EF+FG}{HG}=\frac{SH+HG}{FG}$

$\frac{2x+4}{5}=\frac{x+5}{4}$

Cross products, multiply the numerator and denominators of opposite sides of the fraction together,

$\frac{2x+4}{5}=\frac{x+5}{4}$

$4(2x+4)=5(x+5)$

Simplify,

$4(2x+4)=5(x+5)$

$8x+16=5x+25$

Inverse operations,

$8x+16=5x+25$

$3x+16=25\\3x=9\\x=3$

Substitute this value into the equation given for the measure of (EF),

$EF=2x\\x=3\\\\EF=2x\\=2(3)\\=6$

6 0

3 years ago

An SRS of 27 students at UH gave an average height of 5.6 feet and a standard deviation of 1 feet. Construct a 90% confidence in

andriy [413]

Answer: f) None of the above

= ( 5.283, 5.917)

Therefore at 90% confidence interval (a,b) = ( 5.283, 5.917)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 5.6ft

Standard deviation r = 1.0ft

Number of samples n = 27

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

5.6+/-1.645(1.0/√27)

5.6+/-1.645(0.192)

5.6+/-0.317 ft

= ( 5.283, 5.917)

Therefore at 90% confidence interval (a,b) = ( 5.283, 5.917)

3 0

4 years ago

The equation of the circle whose center is at (4.4) and whose radius is 5 is ​

The equation of the circle whose center is at (4.4) and whose radius is 5 is