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3 years ago

5

Mathew rolls a number cube labeled with the numbers 1−6. He then flips a fair coin. What is the probability that he rolls a 4 an

d flips a head?

1 answer:

melomori [17]3 years ago

3 0

Answer:

1/12

Step-by-step explanation:

The probability of rolling a 4 is 1/6.

The probability of flipping heads is 1/2.

The probability of both is 1/6 × 1/2 = 1/12

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11-Determine the specific heat of a material if a 12-g sample absorbed 96 J as it was heated from 20°C to 40°C. *

kompoz [17]

Answer:

$c=0.4\ J/g^{\circ} C$

Step-by-step explanation:

Given that,

Mass of a sample, m = 12 g

Heat absobed by the sample, Q = 96 J

It was heated from 20°C to 40°C.

We need to find the specific heat of a material. The heat absorbed by a sample is given by :

$Q=mc\Delta T\\\\c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{96}{12\times (40-20)}\\\\=0.4\ J/g^{\circ} C$

So, the specific heat of the material is $0.4\ J/g^{\circ} C$ .

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=solve%20%5C%3A%20%20%5C%5C%20%20%5C%5C%20find%20%5C%3A%20the%20%5C%3A%20area%20%5C%3A%20of%20%

N76 [4]

Area = l ×b

$a = l \times b \\ a = 11 \times 9 \\ a = 99$

5 0

3 years ago

For each question circle the best choice.

svlad2 [7]

The answer is going 5 - 2x = 3

8 0

3 years ago

Read 2 more answers

Show your work and hurry please

spayn [35]

Answer:

15

Step-by-step explanation:

Note: Take note , absolute value will give the magnitude of the value. (Which means ignoring the + / - signs.)

Eg. | - 19 | = 19

Therefore,

$\frac{12(30 - (9 + {4}^{2})) }{10 - | - 6| } \\ = \frac{12(30 - (9 + 16))}{10 - 6} \\ = \frac{12(30 - 25)}{4} \\ = \frac{12(5)}{4} \\ = \frac{60}{4} \\ = 15$

4 0

2 years ago

Please help me plzzzzzz

erma4kov [3.2K]

Answer:

976 square cm

Step-by-step explanation:

Area of one 2d triangle face: (24*14)/2=168 square cm

Area of both 2d triangles faces: 168 + 168 =336 square cm

Area of one side: 25*10=250 square cm

Area of both sides: 250+250=500

Area of base: 14*10=140 (since it's a triangular prism, there's only one base)

Surface Area: 336+500+140=976 square cm

Hope this helps! :)

3 0

3 years ago