Help plzzz ill give extra points ‼️‼️

Answers

Answer 1

Answer: C is the answer I believe

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A circle has a diameter of 4 meters.
What is its perimeter (to the nearest hundredth)?

Answers

Answer:

Perimeter of circle = 12.57 meter.

Step-by-step explanation:

Given : A circle has a diameter of 4 meters.

To find : What is its perimeter (to the nearest hundredth).

Solution : We have given that diameter = 4 meters.

Perimeter of circle = pi * diameter.

Perimeter of circle = 3.14 * 4.

Perimeter of circle = 12.566

Perimeter of circle = 12.57 meter.

Therefore, Perimeter of circle = 12.57 meter.

When the shape is a circle, its perimeter is called the
"circumference" of the circle.

The circumference of a circle is always (pi) times its
diameter.

(pi) is roughly 3.1416 . So if the diameter is 4 meters,
then the circumference is

12.5664... meters .

Rounded to the nearest hundredth, that's 12.57 meters.

Six people are standing in line for concert tickets. Their average age is 27. the average age of the first four people in line is 23. The average age of the last three people is 34. How old is the fourth person in line?

Answers

Total age
6 * 27
162

Subtotal age of first 4
4 * 23
92

Subtotal of last 3
3 * 34
102

In the total of the first 4 and last 3
the 4th person has been counted twice.
This second time must be subtracted.

Therefor
92 + 102 - x = 162
194 - x = 162

Subtract 194 from both sides
-x = -32

Multiply both sides by -1
x = 32

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The equation of line CD is (y − 3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD?

Answers

$The\ slope-point\ form:y-y_0=m(x-x_0)\ where\ m\ is\ a\ slope\n\nIf\ k:y=m_1x+b_1\ and\ l:y=m_2x+b_2\n\nk\perp l\iff m_1m_2=-1\to m_2=-(1)/(m_1)\n\ntherefore\nthe\ slope\ of\ line\ CD:y-3=-2(x-4)\ is\ m_1=-2\ and\ the\ slope\nof\ a\ line\ prpendicular\ to\ CD\ is\ m_2=-(1)/(-2)=(1)/(2)$

Answer: 1/2

(y-3)=-2(x-4)
(y-3)= -2x+8
y= -2x+11
perpendicular slopes are always reciprocals and opposite so the slope would be
slope=1/2

Solve the equation sin(x - 20°) = cos(42º) for x, where 0

Answers

Answer:

$x = 68$

Step-by-step explanation:

Sine are Cosine are Complementary Angles.

We can use this formula

$\sin(x) = \cos(y)$

when x+y=90.

Add the expressions in the parentents to 90 and solve for x.

$x - 20 + 42 = 90$

$x + 22 = 90$

$x = 68$

The answer is

$x = 68$

Katie gives Maggie half of her pencils. Maggie keeps 5 pencils and gives the rest to jamil. Write an expression for the number of pencils Maggie gives to jamil

Answers

Answer:

Y=( x/2 )- 5

Where y is the number of pencils given to Jamil and 5 is the one kept by Maggie.

Step-by-step explanation:

Let's call the number of Katie pencil (x ).

So Katie gave half of her pencils to Maggie.(1/2x)

So Maggie keeps five pencils and give the rest to Jamil.

X/2 = 5 + y

Where y is the number of pencils given to Jamil and 5 is the one kept by Maggie.

Y=( x/2 )- 5

6358 was rounded to the nearest one.

What is the lower bound?

Answers

The lower bound of the number 6358 when rounded to the nearest one (nearest whole number) remains 6358 since it is already a whole number.

Rounding a number to the nearest one implies that we are rounding it to the nearest whole number or integer. In this case, the number 6358 was rounded to the nearest whole number, which means we want to find the lower bound of this rounded value.

When we round 6358 to the nearest whole number, we find that it becomes 6358 itself because it is already a whole number. Therefore, the lower bound of the rounded value is the same as the original value, which is 6358.

In summary, when 6358 is rounded to the nearest one (nearest whole number or integer), the lower bound of the rounded value is also 6358 because the original number is already a whole number. There is no change in the value when rounding to the nearest one in this case.

For more such questions on lower bound

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3 is the lowest in that bound

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