Can someone please explain why this is wrong?

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Answer 1

Answer:

Answer:

Can you show me? Or tell me what might be wrong?

Step-by-step explanation:

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The cube of a positive number divided by the square of the same positive number is a. 2 b. 4 c. 6 or d. 8

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Answer:

this question makes zero sense please rephrase it

Step-by-step explanation:

The zeros of the function f(x)=(x+2)^2 - 25 are?

Answers

Zeros of the function
f(x) = (x + 2)² - 25
f(x) = (x + 2)(x + 2) - 25
f(x) = x(x + 2) + 2(x + 2) - 25
f(x) = x(x) + x(2) + 2(x) + 2(2) - 25
f(x) = x² + 2x + 2x + 4 - 25
f(x) = x² + 4x + 4 - 25
f(x) = x² + 4x - 21
x² + 4x - 21 = 0
x = -(4) +/- √((4)² - 4(1)(-21))
      2(1)
x = -4 +/- √(16 + 84)
   2
x = -4 +/- √(100)
   2
x = -4 +/- 10
2
x = -2 + 5
x = -2 + 5 x = -2 - 5
x = 3    x = -7
f(x) = x² + 4x - 21
f(3) = (3)² + 4(3) - 21
f(3) = 9 + 12 - 21
f(3) = 21 - 21
f(3) = 0
(x, f(x)) = (3, 0)
or
f(x) = x² + 4x - 21
f(-7) = (-7)² + 4(-7) - 21
f(-7) = 49 - 28 - 21
f(-7) = 21 - 21
f(-7) = 0
(x, f(x)) = (-7, 0)

Vertex
X - Intercept
-b/2a = -(4)/2(1) = -4/2 = -2

Y - Intercept
y = x² + 4x - 21
y = (-2)² + 4(-2) - 21
y = 4 - 8 - 21
y = -4 - 21
y = -25
(x, y) = (-2, -25)

y=x^2+4x+4-25
y=x^2+4x-21
y=(x+7)(x-3)
zeros are -7 and 3

Explain why the conversion ratios used between the SI and imperial systems are not nice, round numbers like those used to convert within either system.

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Because within each system, units are defined in terms of others in the same system using nice round numbers, but no unit in either system is defined in terms of a unit in the other system. The one exception is the unit of time, and there, the relationship is a nice round number: 1 metric second = 1 imperial second.

Add. Write your answer in simplest form.
5/8+7/8

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answer is 1 1/2 or 1.5

Lana's family is planning a rectangular garden. They make a scale diagram of the garden using a scale of 1 inch to 0.5 meter. If the length of the scale diagram is 24 inches, and its width is 16 inches, what is the perimeter of the actual garden? 20 meters 40 meters 80 meters 160 meters. Please help me

Answers

Total inches: 24 x 2 + 16 x 2

= 48 + 32 = 80 inches

80 in x 0.5 = 40m

Therefore, answer is 40 metres

Answer:

the answer is 40 meters

Step-by-step explanation:

hope this helps!! <3

How many permutations can be made of the letters of the word "radar" when taken all at a time?

Answers

The number of permutations can be made of the letters of the word "radar" when taken all at a time is 30.

What is Permutation?

This is defined as ways in which n things can be arranged, taken all at a time.

P(n,r) = n!/(n-r)!

Radar has 5 words with 2r , 2a and 1d which means

5! / 2! 2! 1!

5! = 5×4×3×2×1 = 120

2! 2! 1! = 4

120/4 = 30

Read more about Permutation here brainly.com/question/1216161

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