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lidiya [134]
3 years ago
5

Which digit makes 345 ___ divisible by 2? 1 8 3 7

Mathematics
1 answer:
storchak [24]3 years ago
7 0
8. You can tell a number is divisible by 2 if it ends in a 0,2,4,6, or 8
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- Functions F and A are defined by these equations below. Which function has a greater value when x is 2.5?
oksano4ka [1.4K]

Answer:

The answer is D- A(x)=25+10x

Step-by-step explanation:

I cant really explain how i got the answer but i got it right

3 0
3 years ago
A sequence is defined recursively by f(1)=16 and f(n)= f(n-1)+2n. Find f(4)
lord [1]
Hi,

f(1)=16
f(2)=f(1)+2*2=16+4=20
f(3)=f(2)+2*3=20+6=26
f(4)=f(3)+2*4=26+8=34

8 0
3 years ago
Use the graph below to fill in the blank with the correct number: <br><br> f(0) =
3241004551 [841]

Answer:

The answer to your question is: 1

Step-by-step explanation:

f(0) = 1 , because when x = 1, y = 1

5 0
3 years ago
Read 2 more answers
the probabilities of different events are listed in the table getting struck by lightning won out of 500,000 rating on Wednesday
m_a_m_a [10]

Answer:

Lightning struck the electrical lines, so the power went out.

Step-by-step explanation:

7 0
3 years ago
Santos is a lifeguard and spots a drowning child 50 meters along the shore and 60 meters from the shore to the child. Santos run
Amanda [17]

Answer:

Santos should run approximately 36.145 meters along the shore

Step-by-step explanation:

The given parameters are;

The distance along the shore of the child = 50 meters

The distance from the shore of the child = 60 meters

The rate at which Santos can run = 4 m/s

The rate he can swim = 0.9 m/s

Let 'x' represent the distance he runs along the shore

We have;

The time he spends running on the shore, t₁ = x/4

The time he spends swimming, t₂ = (√(60² + (50 - x)²)/0.9

The total time, T = t₁ + t₂ = x/4 + (√(60² + (50 - x)²)/0.9

To find the maximum, we have;

dT/dx = 0 = d(x/4 + (√(60² + (50 - x)²)/0.9)/dx = 1/4 - (50 - x)/(0.9·(√(60² + (50 - x)²) = 0

1/4 - (50 - x)/(0.9·(√(60² + (50 - x)²) = 0

Simplifying using a graphing calculator gives;

\dfrac{x - 2000}{9} = \sqrt{x^2-100\cdot x+6,100}

1519·x² - 151900·x + 3505900 = 0

x = (151900 ± √((-151900)² - 4×1519×3505900))/(2 × 1519)

x ≈ 63.86 m or x ≈ 36.145 m

We note that the distance from a point x = 63.83 meters and 36.145 meters from where Santos spots the girl to the location of the girl are the same

Therefore, Santos should run approximately 36.145 meters along the shore before jumping into to the water in order to save the child

7 0
2 years ago
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