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Lorico [155]
3 years ago
15

The figure show a cuboid ABCDEFGH, BC is8 cm and EH is 3 cm. Find the angle ACF, correct to 3 significant figures ​

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0

Answer:

19.3 degrees

Step-by-step explanation:

The diagonal AC of the rectangle can be found using the Pythagorean Theorem.

8^2 + 3^2 = 73

The square root of 73 = 8.544...

Using this length and the length of FA (which is 3 cm), we can use the inverse of tangent to find the angle.

tangent of the angle = 3 cm/8.544 cm

inverse tangent of (3/8.544) = 19.347...

Hope this helps!

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UNO [17]

Answer:

m = 13.

Step-by-step explanation:

Recall that adding logarithmic equations, (ex: log a + log b) is the same as log (a·b). Therefore:

log 12 + log 5 = log (4m + 8)

log (12·5) = log (4m + 8)

log (60) = log (4m + 8)  **Ignore 'Log' to solve for 'm'

60 = 4m + 8  **Subtract both sides by 8

52 = 4m  **Divide both sides by 4

m = 13.

6 0
3 years ago
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Troyanec [42]

Answer:

5.6

Step-by-step explanation:

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3 years ago
The teacher separated her class of twenty -eight students into two groups. One group has 4 more than twice as many students as t
stiv31 [10]
The class has 28 student. One group has four more students so surat 4 from 28. 28-4=24 since one of the groups have twice as many students as the other divide 24 by 3. 24 / 3 = 8. It says 1 group has for more than twice the other group so that would mean 2/3 of 24 and 4 would be the answer 16+4=20. The first group had 8 students, the other group has 20 students.
4 0
3 years ago
Which of the following statements is true about the quadratic function f(x) = ax2 + bx + c?
Dahasolnce [82]

Answer:

A

Step-by-step explanation:

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6 0
2 years ago
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Cerrena [4.2K]

Answer:

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Step-by-step explanation:

Hope it helps!

6 0
2 years ago
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