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3 years ago

Please help me with this

Mathematics

1 answer:

8090 [49]3 years ago

7 0

Its D because store a and store c are selling it for the lowest price.

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which of the following shows an element if the sample space for first tossing a coin and then rolling a number cube

Elena-2011 [213]

Answer:

Step-by-step explanation:

The answer is C, because an element of the sample space for tossing a coin would be either Heads (H) or Tails (T).

And an element of the sample space for rolling a die would be a number between 1-6, all inclusive.

5 0

3 years ago

Determine the length (to 1 decimal place) of the arc that subtends an angle of 2.8 radians at the centre of a circle with radius

victus00 [196]

Answer:

33.6 cm

Step-by-step explanation:

We can use the formula for arc length to solve this.

$s=r\theta$

Where

s is the arc length

r is the radius

$\theta$ is the angle subtended by the arc (in radians)

<u />

<u>The problem gives us theta = 2.8 radians and radius of the circle as 12 cm. We plug these into the formula and figure out the arc length (to 1 decimal place):</u>

$s=r\theta\\s=(12)(2.8)\\s=33.6$

2nd answer choice is right.

4 0

3 years ago

Two wheel gears are connected by a chain. The larger gear has a radius of 5 centimeters and the smaller gear has a radius of 3 c

krok68 [10]

Answer:

2035.75 cm/min

Step-by-step explanation:

-Since the two gears are connected by the same chain, they have the same linear velocity.

-Linear velocity is distance covered over time:

$Speed=\frac{Distance}{Time}\\\\=\frac{Circumference}{Time}\\\\=\frac{36\times 3\times\pi\times 6}{1}\\\\=648\pi \ cm/min \ or \ 2035.75 cm/min$

Hence, the linear velocity of both gears is 2035.75 cm/min

7 0

3 years ago

cleaner recommends mixing 1½ cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water in simplest form?

lubasha [3.4K]

Answer:

1/8

Step-by-step explanation:

First and foremost, you should note that to make the cleaner, it is 1.5/13.5 cups of cleaner produced for every 12 cups of water, thus making 1.5/12 the ratio. Next, we must simplify this to get 1/8.

4 0

3 years ago

Please help me with this

Simora [160]

Answer:

D -55

Step-by-step explanation:

-55, since we put -1 and -3 instead of x and y. We multiply the result in the brackets by five. This gives us five

6 0

2 years ago

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