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tatuchka [14]
2 years ago
10

20 points... Sherlock - please help!

Mathematics
1 answer:
antiseptic1488 [7]2 years ago
3 0

Answer:

C) \{\frac{1+\sqrt{5}}{3},\:\frac{1-\sqrt{5}}{3}\}

Step-by-step explanation:

(3x-1)^2=5\\\\3x-1=\pm\sqrt{5}\\\\3x=1\pm\sqrt{5}\\\\x=\frac{1\pm\sqrt{5}}{3}\\ \\\{\frac{1+\sqrt{5}}{3},\:\frac{1-\sqrt{5}}{3}\}

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Ken uses 6 apples and 2 bananas to make a fruit salad. He put twice as many oranges as bananas in the salad. How many pieces of
V125BC [204]

Answer:

<u>24 pieces</u> of fruits are use to make 2 fruit salads.

Step-by-step explanation:

Given:

Ken uses 6 apples and 2 bananas to make a fruit salad. He put twice as many oranges as bananas in the salad.

Now, to find the number of pieces of fruit Ken will use to make 2 fruit salads.

So, pieces of fruits use to make a salad are:

Apples = 6.

Bananas = 2.

Oranges = twice of bananas = 2×2=4.

So, total pieces of fruits to make a salad = 6+2+4=12.

Now, total pieces of fruits to make 2 fruit salads:

(6+2+4)\times 2

=12\times 2

=24.

Therefore, 24 pieces of fruits are use to make 2 fruit salads.

8 0
3 years ago
Write a real world situation of |x-14|=3
natita [175]
X -14 +14={3+14}
×=17
answer is 17 .
7 0
3 years ago
The Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour. What is the rate of change for thi
IgorC [24]

Answer:

I think that it is y=15x+35

Step-by-step explanation:

15*x is how many hours and you have to pay $35 regardless to rent the boat

4 0
3 years ago
Leam with an example
Nata [24]

Answer:

18 because 6 times 2 is twelve and 9 times 2 is 18... only if its direcrly proportional which it is

Step-by-step explanation:

pls mark brainliest it would really help me out

8 0
3 years ago
Image of question provided
inna [77]

Answer:

To solve this problem, we can use a system of equations.

We know the quadratic expression has the form

f(t)=at^{2}+bt

Using points (1,12) and (4,0), we can form the following system to find a and b.

12=a+b

0=16a+4b

We need to divide the second equation by -4 and sum both equations

12=a+b\\0=-4a-b

12=-3a\\a=\frac{12}{-3}\\ a=-4

Then, we use this value to find the other variable

12=a+b\\12=-4+b\\b=12+4\\b=16

<h3>Therefore, the quadratic function that models the situation is</h3>

f(t)=-4t^{2} +16t  or  f(t)=-4t(t-4)

According to this expression, after 2 seconds, the height is 16 feet.

f(2)=-4(2)(2-4)=-8(-2)=16

7 0
3 years ago
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