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Mkey [24]
3 years ago
8

What is the answer to this question?

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

Answer:

4

Step-by-step explanation:

-9+4=-5 in other words its increasing at this mark cause your adding positive numbers.

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Help ASAP!!<br><br> What is the value of f(-4) for the function
elena-14-01-66 [18.8K]

Answer:

B: 8

Step-by-step explanation:

8 0
3 years ago
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In JKL, mJ = 90, mK = 30, and mL = 60. Which of the following statements about JKL are true?
kumpel [21]

The <em><u>correct answers</u></em> are:

KL = 2*JL; JK = (√3)JL; and JK = ((√3)/2)KL

Explanation:

This is a 30-60-90 right triangle.  This type of triangle has a special relationship among the sides.  Let the smallest side, across from the 30° angle, be t.  This means JL = t.

The hypotenuse of the triangle is two times the length of the smallest side; this means that KL = 2t, which means that KL = 2*JL.

The side of the triangle opposite the 60° angle will be the "medium sized" side; it is equal to √3 times the smallest side, or √3t; this gives us that JK = √3t = (√3)JL.

Comparing JK to KL, we have

\frac{t\sqrt{3}}{2t}

The t on top and bottom cancel out, leaving us with the ratio (√3)/2.  This means that JK = ((√3)/2)KL.

8 0
3 years ago
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Which expressions can be used to find m∠ABC? Check all that apply.
valina [46]

Answer:

\cos^{-1}(\frac{6.3}{9.8})

\sin^{-1}(\frac{7.5}{9.8})

Step-by-step explanation:

Recall the mnemonics SOH-CAH-TOA

The sine ratio is the length of the opposite side expressed over the hypotenuse.

\sin m\angle ABC=\frac{7.5}{9.8}

Take the sine inverse of both sides to get;

m\angle ABC=\sin^{-1}(\frac{7.5}{9.8})

The cosine ratio is the length of the adjacent side expressed over the hypotenuse.

\cos m\angle ABC=\frac{6.3}{9.8}

Take the cosine inverse of both sides to get;

m\angle ABC=\cos^{-1}(\frac{6.3}{9.8})

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3 years ago
Valerie's work deriving the distance formula for length d is shown.
Umnica [9.8K]

Step-by-step explanation:

hope you can understand

7 0
2 years ago
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Item 4
Simora [160]

Answer:

270 s

Step-by-step explanation:

4 minutes = 240s

add the other 30s

boom

5 0
2 years ago
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