1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Len [333]
4 years ago
13

The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) + 0.8 where f(0) = 2.5. Which stat

ement describes the sequence of numbers generated by the function?
A)The depth of snow was 0.8 inches when the storm began, and 2.5 inches after the first hour of the storm.
B)The depth of snow was 1.7 inches when the storm began, and 0.8 inches of snow fell each hour.
C)The depth of snow was 2.5 inches when the storm began, and increased by 0.8 inches each hour.
D)The depth of snow was 3.3 inches when the storm began, and 2.5 inches of snow fell in 1 hour.
Mathematics
2 answers:
Fed [463]4 years ago
8 0

Answer:

C) The depth of snow was 2.5 inches when the storm began, and increased by 0.8 inches each hour.

Step-by-step explanation:

Alja [10]4 years ago
4 0
C

"When the storm began", it means it has been snowed for 0 hours, so n=0.
f(0)=2.5, thus the <span>depth of snow was 2.5 inches when the storm began.

f(n+1)=f(n)+0.8, so f(n+1)-f(n)=0.8
it means when the time increases by one hour, the depth of snow increases by 0.8 inches.</span>
You might be interested in
If x+1/x=7,find x^2+1/x^2​
trapecia [35]

Answer:

x²+1/x² = 51

Explanation:

Given x - 1/x = 7 ---(1)

We know the algebraic identity:

a²+b²-2ab = (a-b)²

Or

a²+b² = (a-b)²+2ab

Now,

x²+1/x²

= (x-1/x)²+2*x*(1/x)

= (x-1/x)²+2

:7²+2 [ from (1)] =

= 49+2

= 51

Therefore,

x²+1/x² = 51

3 0
3 years ago
Midpoint of (-3,2) (3,2)
Leno4ka [110]

Answer: (0, 2)

Step-by-step explanation:

Do (x1+x2/2, y1+y2/2) as your formula to find the midpoints. -3+3/2=0 and 2+2/2=2 so the midpoint is (0, 2). Hope this helps, have a blessed and wonderful day as well as a safe one and stay healthy!

3 0
3 years ago
Given the function f(x)=3x-4/5 which of the below expressions is correct?
natta225 [31]
Is it an inverse function
4 0
4 years ago
4.) What is the exact value of sinθ when θ lies in Quadrant II and cosθ=−513
dimaraw [331]

Answer:

Part 4) sin(\theta)=\frac{12}{13}

Part 10) The angle of elevation is 40.36\°

Part 11) The angle of depression is 78.61\°

Part 12) arcsin(0.5)=30\°  or arcsin(0.5)=150\°

Part 13) -45\°  or 225\°

Step-by-step explanation:

Part 4) we have that

cos(\theta)=-\frac{5}{13}

The angle theta lies in Quadrant II

so

The sine of angle theta is positive

Remember that

sin^{2}(\theta)+ cos^{2}(\theta)=1

substitute the given value

sin^{2}(\theta)+(-\frac{5}{13})^{2}=1

sin^{2}(\theta)+(\frac{25}{169})=1

sin^{2}(\theta)=1-(\frac{25}{169})  

sin^{2}(\theta)=(\frac{144}{169})

sin(\theta)=\frac{12}{13}

Part 10)

Let

\theta ----> angle of elevation

we know that

tan(\theta)=\frac{85}{100} ----> opposite side angle theta divided by adjacent side angle theta

\theta=arctan(\frac{85}{100})=40.36\°

Part 11)

Let

\theta ----> angle of depression

we know that

sin(\theta)=\frac{5,389-2,405}{3,044} ----> opposite side angle theta divided by hypotenuse

sin(\theta)=\frac{2,984}{3,044}

\theta=arcsin(\frac{2,984}{3,044})=78.61\°

Part 12) What is the exact value of arcsin(0.5)?

Remember that

sin(30\°)=0.5

therefore

arcsin(0.5) -----> has two solutions

arcsin(0.5)=30\° ----> I Quadrant

or

arcsin(0.5)=180\°-30\°=150\° ----> II Quadrant

Part 13) What is the exact value of arcsin(-\frac{\sqrt{2}}{2})

The sine is negative

so

The angle lies in Quadrant III or Quadrant IV

Remember that

sin(45\°)=\frac{\sqrt{2}}{2}

therefore

arcsin(-\frac{\sqrt{2}}{2}) ----> has two solutions

arcsin(-\frac{\sqrt{2}}{2})=-45\° ----> IV Quadrant

or

arcsin(-\frac{\sqrt{2}}{2})=180\°+45\°=225\° ----> III Quadrant

5 0
3 years ago
Can someone write this in standard form -7-3x=9x(x+2)
lbvjy [14]
-7 - 3x = 9x(x + 2)

Standard Form:
-9x^2 - 21x - 7 = 0
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the inverse of the function
    11·1 answer
  • Find the length of the radius of a sphere with a volume of 1436.76 in^3
    6·1 answer
  • Which statement is false?
    10·2 answers
  • Suppose that the national average for the math portion of the College Board's SAT is 515. The College Board periodically rescale
    8·1 answer
  • Please help me with number 11
    6·1 answer
  • Nancy borrows $5000 at a rate of 16% interest per year. What is the amount due at the end of 5 years If the Interest is
    8·2 answers
  • Evaluate the following expression if x=4 28x - 9 (2x+ 6)​
    11·1 answer
  • Please help me with this question.
    11·2 answers
  • To walk to her friend's house, Cristal normally walks 63 yards north and 16 yards east as shown. How many
    5·1 answer
  • Last year, Lien earned $1,600 more than her husband. Together they earned $51,000. How much did each of them earn?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!