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sashaice [31]
3 years ago
15

At 3:00 the temperature in Alaska began dropping at a constant rate. The equation y = –5x – 10 can be used to represent this sit

uation, where y is the temperature below zero and x is the time in hours the temperature has been falling.
Which statement best describes the temperature at 3:00, given this situation?

A. From a starting temperature of 10 degrees below zero, the temperature is rising 5 degrees per hour.

B. From a starting temperature of 10 degrees below zero, the temperature is falling 5 degrees per hour.



C. From a starting temperature of 5 degrees below zero, the temperature is rising 10 degrees per hour.

D. From a starting temperature of 5 degrees below zero, the temperature is falling 10 degrees per hour.
Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Hope this helps <3

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Given f(x) = x2 + 6x and g(x) = 2x3, which of the following are true? Check all correct answer(s).
kifflom [539]

Answer:

C and D are true

Step-by-step explanation:

A

f(x) × g(x) = 2x³(x² + 6x) = 2x^{5} + 12x^{4}

B

f(0) = 0² + 6(0) = 0 + 0 = 0 ≠ 16

C

f(1) = 1² + 6(1) = 1 + 6 = 7

g(1) = 2(1)² = 2

f(1) × g(1) = 7 × 2 = 14 ← True

D

g(x) × g(x) = 2x³ × 2x³ = 4x^{6} ← True

8 0
3 years ago
Please help!
natulia [17]

Answer: Option D.

Step-by-step explanation:

To solve this exercise you must keep on mind the Angle at the Center Theorem.

According to the  Angle at the Center Theorem, an inscribed angle is half of the central angle.

Therefore, given in the inscribed angle m∠BAC=35°, you can calculate the central angle m∠EFD as following:

BAC=\frac{EFD}{2}

- Solve for EFD.

EFD=2*BAC

- When you substitute values. you obtain:

EFD=2(35\°)\\EFD=70\°

7 0
3 years ago
Read 2 more answers
how can e=1/2mv^2 when 1/2 moved to the side of e become 2e? This is because you are trying to find the formula when solved for
lisov135 [29]

e = 1/2 mv ^2

Times 2 for both sides.

2e = mv^2

And this is because you are trying to find the formula when solved for v.

And I can help you find that formula which is:

mv^2 = 2e

v^2 = 2e/m

v = √(2e/m)

7 0
3 years ago
In this race speedy mcgoo Ran the 400 m dash in 14.5 seconds. What is his speed in meters per second?
Anuta_ua [19.1K]

Answer:

27.58 meters per second.

Step-by-step explanation:

divide 400 by 14.5

7 0
3 years ago
Order the following numbers from least to greatest. 5/4; 1.3; 1 8/25 (The 1 8/25 is a mixed number reading One and Eight Twenty-
xeze [42]

Answer:

5/4,1.3,1 8/25

Step-by-step explanation:

5/4 = 1.25

1 8/25=1.32

1.25<1.3<1.32

7 0
3 years ago
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