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marysya [2.9K]
3 years ago
15

Hi can someone plz help me with this question

Mathematics
1 answer:
dmitriy555 [2]3 years ago
7 0

Answer: n/4-1

Step-by-step explanation:

n/4 means how much each friend would have eaten if the pizza was equally divided and - 1 references to the one slice less he ate.

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Help please question in the picture
Delvig [45]

Answer:

A. 361 meters squared

Step-by-step explanation:

hope it helps:)

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2 years ago
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Point C is the center of dilation. Line segment B A is dilated to create line segment B prime A prime. The length of C A is 4. T
saw5 [17]

Answer:

Step-by-step explanation:

Given

See attachment for figure

CA = 4

CA' = 16

Required

The scale factor (k)

Since point C is the center of dilation, the scale factor (k) is calculated using:

k = \frac{CA + CA'}{CA}

So, we have:

k = \frac{4+16}{4}

k = \frac{20}{4}

k = 5

8 0
2 years ago
Graph the image of the figure after a dilation with a scale factor of 2 centered at (-7, - 2).
tigry1 [53]

Answer:

Sorry this is late!

Step-by-step explanation:

8 0
3 years ago
You bicycle along a straight flat road with a safety light attached to one foot. Your bike moves at a speed of 15 km/hr and your
Viefleur [7K]

Answer:

a)

x(t) = ( 4.167 t + 0.2 cos (2πt))

y(t) = ( 0.3 - 0.2 sin  (2πt))

b) the  foot have to be 3.32 rev/sec faster

Step-by-step explanation:

Given that:

the speed of the bike = 15 km/hr = 15 × 1000/3600 (m/sec) = 4.167 m/sec

radius of the circle when the foot moves = 20 cm = 0.2 m

radius of the circle above the ground = 30 cm = 0.3 m

Let assume that:

x(t)  should represent the vector along the horizontal moment

y(t) should be the vector along the vertical moment

The initial component will be ( 0, 0.3)

We know that the radius of the circle is given as 0.2 m, So the vector of the circle can be written as (0.2 cos t , 0.2 sin t )

Also, the foot makes one revolution in a second, definitely the frequency of the revolution = 1 and the vector for the circle is ( 0.2 cos (2πt), -0.2 sin  (2πt)), due to the fact that the foot moves clockwise.

Thus, adding all the component together ; we have:

(x(t), y(t)) = (0,0.3)+(4.167 t , 0)+(0.2 cos (2πt), -0.2 sin  (2πt))

(x(t), y(t)) = (4.167 t + 0.2 cos (2πt), 0.3 - 0.2 sin  (2πt))

Hence; the parametric equations are:

x(t) = ( 4.167 t + 0.2 cos (2πt))

y(t) = ( 0.3 - 0.2 sin  (2πt))

b)

The linear speed of rotation is :

15km/hr = 15 × 100, 000/3600 (cm/sec)

             = 416.7 cm/sec

The rotational frequency is :

= 416.7/2πr

= 416.7/2(3.14 × 20)

= 3.32 rev/sec

Hence, the  foot have to be 3.32 rev/sec faster in rotating if an observer standing at the side of the road sees the light moving backward.

4 0
3 years ago
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SLOPE AND Y INTERCEPT IM GONNA BREAKDOWN?????????
ollegr [7]

Answer:

slope: -1/2

y-intercept: 2

Step-by-step explanation:

y=mx+b  is the equation to a linear function

m=slope

b=y-intercept

In this case, -1/2 is the m, and 2 is the y-intercept.

5 0
2 years ago
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