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natta225 [31]
2 years ago
12

If f(x)=x2 + 3 and g(x) = 4x – 9, find f(4)+ g(-3).

Mathematics
1 answer:
koban [17]2 years ago
4 0

Step-by-step explanation:

hope it helps you........

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PYTHAGORAS THEROM AND TRIGONOMETRY RATIO​
marysya [2.9K]

Answer:

1) ΔACD is a right triangle at C

=> sin 32° = AC/15

⇔ AC = sin 32°.15 ≈ 7.9 (cm)

2) ΔABC is a right triangle at C, using Pythagoras theorem, we have:

AB² = AC² + BC²

⇔ AB² = 7.9² + 9.7² = 156.5

⇒ AB = 12.5 (cm)

3)  ΔABC is a right triangle at C

=> sin ∠BAC = BC/AB

⇔ sin ∠BAC = 9.7/12.5 = 0.776

⇒ ∠BAC ≈ 50.9°

4) ΔACD is a right triangle at C

=> cos 32° = CD/15

⇔ CD = cos32°.15

⇒ CD ≈ 12.72 (cm)

Step-by-step explanation:

7 0
3 years ago
Convert 1.4x10^-8 to standard notation/long form​
andriy [413]

Answer:

0.000000014

Step-by-step explanation:

1.4 × 10^{-8} = \frac{1.4}{10^8 = 100000000} = 0.000000014

6 0
2 years ago
7x−2(x+3) =? also you have to simplify your answer
12345 [234]
7x-2(x+3)
=7x-2x-6
=5x-6
6 0
3 years ago
The polygons to the right are similar. Find the values of each variable! ( simplify ur answer)
Sever21 [200]

Answer:

hi! i'm so sorry about your headache, hope it gets better !

still need help?

Step-by-step explanation:

4 0
3 years ago
I really need help on this thi g is hard
Katarina [22]

Answer:

B

Step-by-step explanation:

A division between two roots that have the same index can be rewritten as a division between the two terms with a unic root

\sqrt{7x^2/3x} = \sqrt{7x/3}

5 0
2 years ago
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