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3 years ago

Help me help me please help help help

Mathematics

1 answer:

nignag [31]3 years ago

4 0

Answer:

The first one, since that is the only one showing in the screen,

and that is actually correct, since there are no intersecting points.

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Mina compro un queso que pesaba 3/4 de kilo .si lo partió en 1/8 de kilo cada una ¿cuantas porciones de queso pudo sacar ?

Ksju [112]

Answer:

Tenemos.

Lo que compro de queso = 3/4 k

Cada pedazo pesa = 1/8k

Número de pedazos = (3/4)/(1/8)

Número de pedazos = (3 *8)/(4*1) = 24/4 = 6

Respuesta.

Salen 6 pedazos

Step-by-step explanation:

5 0

3 years ago

The radius of the tires of a car is 18 inches, and they are revolving at the rate of 651 revolutions per minute. How fast is the

Mumz [18]

So the car is moving at 651 revolutions per minute, with wheels of a radius of 18inches

so, one revolution, is just one go-around a circle, and thus 2π, 651 revolutions is just 2π * 651, or 1302π, the wheels are moving at that "angular velocity"

now, what's the linear velocity, namely, the arc covered per minute

well $\bf v=rw\qquad 
\begin{cases}
v=\textit{linear velocity}\\
r=radius\\
w=\textit{angular velocity}\\
----------\\
r=18in\\
w=1302\frac{\pi }{min}
\end{cases}\implies v=18in\cdot \cfrac{1302\pi }{min}
\\\\\\
v=\cfrac{23436\pi\ in}{min}$

now, how much is that in miles/hrs? well
let's keep in mind that, there are 12inches in 1foot, and 5280ft in 1mile, whilst 60mins in 1hr

thus $\bf \cfrac{23436\pi\ in}{min}\cdot \cfrac{ft}{12in}\cdot \cfrac{mi}{5280ft}\cdot \cfrac{60min}{hr}\implies \cfrac{23436\cdot \pi \cdot 60\ mi}{12\cdot 5280\ hr}$

notice, after all the units cancellations, you're only left with mi/hrs

4 0

3 years ago

PLEASE HELP ME- KEEP GETTING 1.44x10 to the 9 power! WILL GIVE BRAINLIEST

KIM [24]

So you multiply the first factors, which will get you 14.4 and you add the powers together which will get you 10^8. Since 14.4 is not acceptable, you move the decimal and add 1 to the power which will get you 1.44 x 10^9

hope that helps :)

8 0

3 years ago

The number of boxes of food that six volunteers collected for the food drive is given in the table below.

shutvik [7]

Answer:

The mean absolute value is 7.7, when rounded to the nearest tenth.

Step-by-step explanation:

1.) To get the mean absolute deviation you have to find the mean first:

32 + 35 + 20 + 16 + 28 + 13 = 144 ÷ 6 = 24

2.) Then, you have to find the difference of each element in your data set that is away from the mean. Then, you have to find the absolute values of the answers:

32 - 24 = | 8 | → 8
35 - 24 = | 11 | → 11
20 - 24 = | -4 | → 4
16 - 24 = | -8 | → 8
28 - 24 = | 4 | → 4
13 - 24 = | -11 | → 11

3.) Then, you have to find the mean of the absolute values:

8 + 11 + 4 + 8 + 4 + 11 = 46 ÷ 6 = 7.6666666666666666666666666666667‬ = 7.7

3 0

4 years ago

What is the length of cloth needed to make 18 shirts if each shirt is made from 0.8 yards of material?

prohojiy [21]

Answer:

14.4 yards

Step-by-step explanation:

Each shirt needs 0.8 yards so 18 shirts needs 18 * 0.8 = 14.4 yards of material.

7 0

3 years ago