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2 years ago

HELP please! I need Help. Pre-calc. I'm not sure how to solve this. 50 Points! Please It will be appreciated.

Mathematics

1 answer:

Brums [2.3K]2 years ago

5 0

$\large{\mathcal{QUESTION:}}$

An elliptical mirror has an eccentricity of 0.8. The mirror is surrounded by a 2-inch wide golden frame and is 34 inches tall including the frame. If a replacement mirror is being cut from a rectangular sheet of glass, what is the minimum dimensions needed for the sheet of glass?

$\large{\mathcal{ANSWER:}}$

B. 17 inches by 8 inches

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2. What is the rule for this input-output table?

qwelly [4]

Answer:

First, this table is a function because it has no repeating input values

Second, it is increasing in both the x and y

third, since it is increasing in x and y it is a positive correlation( I dont know if you have learned that yet)

Fourth, the output increases by 4 each time the input increases by 1

Step-by-step explanation:

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4 years ago

Mr. Howe ate 1/3 of a pizza and then Mr. Kurt ate 1/8 of the same pizza. How

Nikolay [14]

12/24

Step One: We need to convert 1/3 and 1/8 so both have the same denominator, so we need to find the a number that is able to be multiply by 3 and 8 for the process.

Step Two: 1/3 x 8= 8/24 and 1/8x3= 3/24

Step Three: Add our new fractions: 3/24+8/24= 12/24

Step Four: Subtract 12 by 24: 24-12= 12; our answer is 12/24 or half the pizza was eaten

I hope I've help!

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3 years ago

Solve the equation -10(d + 1) = -14. d= ?

sashaice [31]

Answer:

d = 0.4

Step-by-step explanation:

Given

- 10(d + 1) = - 14 (divide both sides by - 10 )

d + 1 = 1.4 ( subtract 1 from both sides )

d = 0.4

7 0

3 years ago

Pete took a sample of moviegoers to see how many are seeing a comedy. Sample size: 175 Number seeing a comedy: 42 Population: 1,

Anastaziya [24]

Answer: Part A : c = n.p

Part B = 366 moviegoers

Step-by-step explanation: In part A, to predict the number of moviegoers, we have to find the proportion of the sample that does the activity, which will called p. Since p is a percentage, to determine how many moviegoers are seeing a comedy, you multiply it by the sample size, n.

Therefore: c = n.p

For part B, based on the the sample:

p = $\frac{42}{175}$ = 0.24

The total population is given: 1,525

c = 0.24.1,525

c = 366

Based on the sample, 366 people are seeing a comedy.

3 0

3 years ago

Determine the big-O of the function: 1^k + 2^k +⋯+ n^k

viktelen [127]

Show that 1k+2k+...+nk is O(nk+1). So according to the definition of big-O notation we have: 1k+2k.

8 0

3 years ago