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3 years ago

Which of these people ran for about 35 minutes?

Mathematics

1 answer:

solniwko [45]3 years ago

7 0

9514 1404 393

Answer:

D Malin ran from 3:42 PM until 4:17

Step-by-step explanation:

You need only examine the least-significant digits to determine of the difference of times will end in 5.

The only time difference that is 35 minutes is ...

3:42 pm to 4:17 pm . . . . . . choice D

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A rope of length 18 feet is arranged in the shape of a sector of a circle with central angle O radians, as shown in the

creativ13 [48]

Answer:

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Let

r ---> the radius of the sector

s ---> the arc length of sector

Find the radius r

we know that

$2r+s=18$

$s=r \theta$

$2r+r \theta=18$

solve for r

$r=\frac{18}{2+\theta}$

step 2

Find the value of s

$s=r \theta$

substitute the value of r

$s=\frac{18}{2+\theta}\theta$

step 3

we know that

The area of complete circle is equal to

$A=\pi r^{2}$

The complete circle subtends a central angle of 2π radians

using proportion find the area of the sector by a central angle of angle theta

Let

A ---> the area of sector with central angle theta

$\frac{\pi r^{2} }{2\pi}=\frac{A}{\theta} \\\\A=\frac{r^2\theta}{2}$

substitute the value of r

$A=\frac{(\frac{18}{2+\theta})^2\theta}{2}$

$A=\frac{162 \theta}{(\theta+2)^2}$

Convert to function notation

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

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3 years ago

A student wrote a number pattern such that each number is 3 more that 4 times the previous number. What is the sixth term in the

Nesterboy [21]

Start with 1.
1st number = 1
2nd number = 1 * 4 + 3 = 7
3rd number = 7 * 4 + 3 = 31
4th = 31 * 4 + 3 = 127
5th = 127 * 4 + 3 = 511
Which means the 6th = 511 * 4 + 3, which is 2047.

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3 years ago

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A garden is in the shape of a square. The length of one side of the garden is

zheka24 [161]

Answer:

45,796 feet squared, assuming the length of one side is 214 feet.

Step-by-step explanation:

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3 years ago

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Which mapping represents a function?

Morgarella [4.7K]

The answer to the question is B

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2 years ago

What is (f + g)(x)? f(x) = -5x + 3 g(x) = -3x? Write your answer as a polynomial or a rational function in simplest form.

ivann1987 [24]

Answer:

- 8x + 3

Step-by-step explanation:

(f + g)(x)

= f(x) + g(x)

= - 5x + 3 + (- 3x)

= - 5x + 3 - 3x ← collect like terms

= - 8x + 3

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2 years ago