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dlinn [17]
3 years ago
7

Help me please and thank you ​

Mathematics
2 answers:
Fiesta28 [93]3 years ago
7 0

Answer:

A 7.85 cm2 should be right

goldenfox [79]3 years ago
4 0
I believe the answer is 78.54 , D
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Which of the following measurements results in the largest circle?
AnnZ [28]

Answer:

A

Step-by-step explanation:

A) r = 8

B) r = 4

C) r = \sqrt{\frac{30}{\pi } } ~ 3.09

D) r = \frac{30}{2\pi} = \frac{15}{\pi } ~ 4.77

Circle A has the largest radius, and thus is the largest circle

5 0
2 years ago
Put the following products in order from greatest to least 6x 2/5 , 3 2/3 x 2/5, 2/7 X 2/5, 2/2 x2/5
DedPeter [7]
6x2/5>3 2/3x 2/5>2/2x2/5>2/7x2/5
6 0
3 years ago
Given the following table, determine the missing value.<br> a. 1.15<br> C 15<br> b. 115<br> d. .15
Setler [38]

Answer:

it's c because it's the missing value

8 0
3 years ago
Read 2 more answers
Whats the roots of the following three problems:
klemol [59]

QUESTION 1

The given function is

f(x)=\frac{(x-3)(x-1)}{(x-1)(x+2)}

We simplify to get;

f(x)=\frac{x-3}{x+2}

This function is equal to zero when x-3=0

\Rightarrow x=3

QUESTION 2

The given function is

f(x)=\frac{5x^2-10x+5}{2x^2-5x+3}

f(x)=\frac{5(x^2-2x+1)}{2x^2-5x+3}

We factor to get;

f(x)=\frac{5(x-1)^2}{(2x-3)(x-1)}

f(x)=\frac{5(x-1)}{(2x-3)}

This function equals zero when

5(x-1)=0

x=1

QUESTION 3

The given function is

f(x)=\frac{x^3-8}{x^2-6x+8}

We factor to get,

f(x)=\frac{(x-2)(x^2+2x+4)}{(x-2)(x+4)}

f(x)=\frac{x^2+2x+4}{x+4}

The function equals zero when x^2+2x+4=0

D=b^2-4ac

D=2^2-4(1)(4)

D=-12

Hence the equation has no real roots.

The complex roots are

x=-\sqrt{3}i-1 or x=-1+\sqrt{3}i

4 0
3 years ago
The weight of an object on a particular scale is 155.2 lbs. The measured weight may vary from the actual weight by at most 0.4 l
alexira [117]
155.2 + 0.4 = 155.6
155.2 - 0.4 = 154.8

so it ranges from : 154.8 to 155.6
5 0
3 years ago
Read 2 more answers
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