Mathematics : asked on Dmoney7784

15.10.2022

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09.07.2023, solved by verified expert

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Mathematics, DAV Post Graduate College

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HELP PLS ILL GIVE 43 POINTS, №18011240, 15.10.2022 00:02

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Mathematics

HELP PLS ILL GIVE 43 POINTS

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Mathematics

Mrs. Chatman buys popcorn for $4.97 and a coke priced at $3.43. She gives the cashier a $20 bill. How much change should she receive? right answer please ill give brainliest

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P Answered by PhD

$11.60 (see below)

Step-by-step explanation:

First, you need to find the total cost of the two items bought:

Add the two decimals together:

1 1

$ 4 . 9 7

+ $ 3 . 4 3

$ 8 . 4 0

So the total cost was $8.40.

If this was paid by $20, then you will have to subtract the cost:

1 9 10

$ 2 0 . 0 0

– $ 8 . 4 0

$ 1 1 . 6 0

So the change was $11.60.

Mathematics

Ill give u a brainliest if u can answer this right what is the general rule for the sequence? 1.11, 2.54, 3.97, 5.40, a. an = 1.43n – 0.32 b. an = 1.11n + 1.43 c. an = 1.11n d. an = 1 + 0.11n

Step-by-step answer

P Answered by Specialist

The pattern is adding 1.43 to the term before

1.11 + 1.43 = 2.54 + 1.43 = 3.97 + 1.43 = 5.40 . . .and so on.

Mathematics

Ill give u a brainliest if u can answer this right what is the general rule for the sequence? 1.11, 2.54, 3.97, 5.40, a. an = 1.43n – 0.32 b. an = 1.11n + 1.43 c. an = 1.11n d. an = 1 + 0.11n

Step-by-step answer

P Answered by Master

The pattern is adding 1.43 to the term before

1.11 + 1.43 = 2.54 + 1.43 = 3.97 + 1.43 = 5.40 . . .and so on.

Mathematics

Please help!! ill give 20pts 1) y=x2+24x+43 find the vertex form by completing the square SHOW ALL WORK!!! 2) Given the function f(x)=−x2+8x+9, state whether the vertex represents a minimum or maximum point for the function. Explain your answer.

Step-by-step answer

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1. Vertex is (-12, -101)

2. Vertex is (4, 25)

Step-by-step explanation:

$y = x^{2} + 24x + 144 + 43 - 144\\ = (x + 12)^{2} - 101$

Vertex is (-12, -101)

$y = -x^{2} + 8x + 9\\ = -(x^{2} - 8x + 16) +9 + 16\\ = -(x - 4)^{2} + 25$

Vertex is (4, 25)

Mathematics

*PLS ANSWER ILL GIVE OUT BRAINLIEST* he radius of a salad bowl is 7.2 inches. What is the surface area of the bowl? (Assume the bowl is half a sphere). a.) 325.72 in2 b.) 651.44 in2 c.) 81.43 in2

Step-by-step answer

P Answered by Specialist

Step-by-step explanation:

4×π×7.2^2

207.36π

651.44065264838 since it is a bowl and not a sphere you divide it by two and get 325.72

Mathematics

Please help ill give and heart please ! Mrs Phelps stores her family s cereal in a container shaped like a cylinder, the height of the container is 12.75 inches and the diameter is 7 inches which measurement is closest to the volume of the cylinder in cubic inches? A ) 280.25 inches B ) 490.43 inches C ) 1786.56 inches D ) 1961.72 inches

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P Answered by Specialist

the answer is B

$v = \pi {r}^{2} h = 3.14 \times {3.5}^{2} \times 12.75 \\ v = 490.43$

Step-by-step explanation:

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Mathematics

Step-by-step answer

P Answered by Specialist

1. Vertex is (-12, -101)

2. Vertex is (4, 25)

Step-by-step explanation:

$y = x^{2} + 24x + 144 + 43 - 144\\ = (x + 12)^{2} - 101$

Vertex is (-12, -101)

$y = -x^{2} + 8x + 9\\ = -(x^{2} - 8x + 16) +9 + 16\\ = -(x - 4)^{2} + 25$

Vertex is (4, 25)

Mathematics

*PLS ANSWER ILL GIVE OUT BRAINLIEST* he radius of a salad bowl is 7.2 inches. What is the surface area of the bowl? (Assume the bowl is half a sphere). a.) 325.72 in2 b.) 651.44 in2 c.) 81.43 in2

Step-by-step answer

P Answered by Specialist

Step-by-step explanation:

4×π×7.2^2

207.36π

651.44065264838 since it is a bowl and not a sphere you divide it by two and get 325.72

Mathematics

Ill give 70 ! a boat travels 375.32 miles in 7.99 hours (with a constant speed). how much time will it take traveling 221.43 miles?

Step-by-step answer

P Answered by Master

It will take 4.71 hours to travel a distance of 221.43 miles

Step-by-step explanation:

Given

Distance covered in time 7.99 hours is 375.32 miles.

Now we know that speed is equal to distance per unit time.

Therefore,

$speed = \frac{distance}{time} \\= \frac{375.32}{7.99}\\=46.97\ mi/h$

Which is the constant speed, hence now time taken for a distance of 221.43 miles will be

$time = \frac{distance}{speed} \\=\frac{221.43}{46.97} \\=4.71\ h$

Therefore, the time taken to cover 221.43 miles is 4.71 hours.

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