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Pachacha [2.7K]
3 years ago
11

The velocity of sound in air is given by the equation v= 20 273+t here is the velocity in meters per second and is the temperatu

re in degrees Celsius. Find the temperature when the velocity of sound in air is 395 meters per second. Round to the nearest degree.
U spam I kill u
Mathematics
1 answer:
Digiron [165]3 years ago
4 0

I'm spamming my own answer.

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Keith, Jason, Alyssa and Monique each have 27 playing cards. How many card to they have in all?
gtnhenbr [62]

Answer: I think its 81 but i'm not that sure.

Step-by-step explanation:

8 0
3 years ago
Which is a factor of 144 − 49x2?<br><br> 12 - 7x2<br> 72 – 7x2<br> 12 – 7x<br> 72 + 7x
Vinil7 [7]

Answer:

(12-7x)

Step-by-step explanation:

144 − 49x²

by observation, we can see that 144 = 12² and 49 = 7²

hence we can rewrite the equation

144 − 49x²

= 12² - 7²x²

= 12² - (7x)²

recall that the expression x² - y² = (x+y)(x-y)

hence,

12² - (7x)²

= (12 + 7x)(12-7x)

(12-7x) appears in the expression above, hence 12 -7x is a factor

5 0
3 years ago
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What scale factor do you use to make<br><br> A 5mm object 100mm ?
Flauer [41]

Answer:

Utiliza una cifra que pueda ser resultado de dividir 100:5 y eso a su vez nos dará el valor que debe aumentar en la escala

7 0
3 years ago
Given An = 5a(n-1) where a1= 2. What are the first 4 terms
nexus9112 [7]

Answer:

2, 10, 50, 250

Step-by-step explanation:

Using the formula with a₁ = 2 , then

a₂ = 5a₁ = 5 × 2 = 10

a₃ = 5a₂ = 5 × 10 = 50

a₄ = 5a₃ = 5 × 50 = 250

The first 4 terms are 2, 10, 50, 250

8 0
3 years ago
Use the graph to determine the input value for which f(x)=g(x) is true.
Lostsunrise [7]

Answer:

x = 1.5

Step-by-step explanation:

We just have to find the x-coordinate of the point of intersection between the two functions. From the graph, they intersect at (1.5, 2) so the answer is 1.5.

3 0
3 years ago
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