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Nutka1998 [239]
3 years ago
11

Answers must be in standard form: (K+4)(3k+2)

Mathematics
2 answers:
kotykmax [81]3 years ago
7 0

Answer:

3kK+2K+12k+8

Step-by-step explanation:

alekssr [168]3 years ago
7 0

Answer:

k3-k4

Step-by-step explanation:

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Please answer these last four questions.
Crank

Answer:

numbwer 8 is 44.04

Step-by-step explanation:

plz put brainliest

4 0
3 years ago
A. Find the reflection of the point (-3, 2) about the origin.
nadezda [96]

Answer:

a. (3,-2)

b. (-5,-3)

5 0
3 years ago
The mean annual tuition and fees for a sample of 12 private colleges was 36,800 with a standard deviation of 5,000 . A dotplot s
Ilya [14]

Answer:

The value of the test statistic and degrees of freedom is 2.148 and 11 respectively.

Step-by-step explanation:

Consider the provided information.

The mean annual tuition and fees for a sample of 12 private colleges was 36,800 with a standard deviation of 5,000 .

Thus, n = 12, \bar x=36800 σ = 5000

degrees of freedom = n-1 = 12-1 = 11

H_0: \mu = 33700\ and\ H_a: \mu \neq 33700

Formula to find the value of z is: z=\frac{\bar x-\mu}{\frac{\sigma}{\sqrt{n}}}

Where \bar x is mean of sample, μ is the mean of population, σ is the standard deviation of population and n is number of observations.

z=\frac{36800-33700}{\frac{5000}{\sqrt{12}}}

z=2.148

Hence, the value of the test statistic and degrees of freedom is 2.148 and 11 respectively.

6 0
3 years ago
Solve number 8 please
beks73 [17]

Answer:

see explanation

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k )² = r²

where (h, k ) are the coordinates of the centre and r is the radius

given

x² + y² - 8x + 8y + 23 = 0

collect the x and y terms together and subtract 23 from both sides

x² - 8x + y² + 8y = - 23

using the method of completing the square

add ( half the coefficient of the x / y terms )² to both sides

x² + 2(- 4)x + 16 + y² + 2(4)y + 16 = - 23 + 16 + 16

(x - 4)² + (y + 4)² = 9 ← in standard form

with centre = (4, - 4 ) and r = \sqrt{9} = 3

this is shown in graph b

7 0
2 years ago
Need help ...................
aliina [53]

Answer:

with?

Step-by-step explanation:

3 0
3 years ago
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