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marin [14]
3 years ago
7

The temperature of magnesium must be at least 650° for the metal to melt. A sample of magnesium is currently 255°. The temperatu

re of the magnesium is increased by 10° every minute. Which inequality shows the number of minutes (m) needed to raise the temperature to the melting point?
answer: m>_39.5
Mathematics
2 answers:
brilliants [131]3 years ago
6 0

Answer:

You're right....

Kobotan [32]3 years ago
6 0

Answer:

isn´t  m>39.5   the answer?

Step-by-step explanation:

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find the value of tan (a-b) if cos a=4/5 on the interval (270, 360) and sin b=-5/13 on the interval (270, 360)
Rudiy27

We can find a and b using inverse trig functions,

\cos(a)=\frac{4}{5}\implies a=\arccos\Big(\frac{4}{5}\Big)\approx36.87 \\\sin(b)=-\frac{5}{13}\implies b=\arcsin\Big(-\frac{5}{13}\Big)\approx-22.62

\tan(36.87-(-22.62))\approx1.7

Hope this helps.

7 0
3 years ago
Please answer the question! i will give brainliest!!!!!!
Reptile [31]

Answer:

B because you multiply all the similar numbers together then at the end you add them all up.Step-by-step explanation:

6 0
3 years ago
Credit unions are not subject to federal regulations. A. True B. False
Stolb23 [73]

Answer:

The correct answer is (FALSE)

Step-by-step explanation:

(APEX)

6 0
3 years ago
A ′ B ′ C ′ triangle, A, prime, B, prime, C, prime is the image of △ A B C △ABCtriangle, A, B, C under a rotation about the orig
erma4kov [3.2K]

The angle of rotation of triangle ABC to A'B'C is 105°

<h3>How to illustrate the information?</h3>

It should be noted that the rotation from ABC to A'B'C is in a clockwise direction.

Point B is also on the x axis and point B' is in the second quadrant.

In this case, the angle that depicts the second quadrant is 105°.

In conclusion, the correct option is D.

The complete question is:

Triangle A’ B’ C’ is the image of A B C under a rotation about the origin, (0,0)

Determine the angle of rotation

A. -105 degrees

B. -75 degrees

C. 75 degrees

D. 105 degrees

Learn more about triangles on:

brainly.com/question/11485921

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8 0
1 year ago
What is the best estimate for the volume of the pyramid?
laila [671]

<span>Volume of the pyramid = (1/3) * base area * height
Base area = 230</span>² = 52,900 m²
<span>Volume of the pyramid = (1/3) * 52,900 * 138 = 2,433,400 m</span>³
6 0
3 years ago
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