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KiRa [710]
3 years ago
7

Find X A. 3 B. sqrt6 C. 3sqrt3 D. 3sqrt2/2

Mathematics
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

B. sqrt 6 is the answer.maja

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Consider a triangle ABC
N76 [4]

Answer:

A =24.7° ; B = 40.6° ; C =114.7°

Step-by-step explanation:

Cosine Law

a² = b²+c²-2bc cos A

b² = c²+a² -2ca cos B

Sum of three angles of a triangle is 180°.

a = 34 ; b= 53; c = 74

Substituting the given values in the cosine law, we have

34² = 53² + 74² - 2*53 *74 * cos A

7844 cos A = 2809 + 5476 - 1156 = 7129

cos A = 7129/7844 = 0.9088

A = cos⁻¹ (0.9088) = 24.6600° = 24.7°

53² = 74² + 34² - 2 (74)(34) cos B

5032 cos B = 5476 + 1156 - 2809 = 3823

cos B = 3823/5032 = 0.7597

B = cos⁻¹ (0.7597) = 40.5622° = 40.6°

Also, A + B + C = 180°

24.7 + 40.6 + C =180

C =180 -  65.3 = 114.7°

∴ A =24.7° ; B = 40.6° ; C =114.7°

7 0
3 years ago
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Find |−5|.<br> A. −5<br> B. 5<br> C. one-fifth<br> D. –one-fifth<br><br> HELP!!!
Volgvan

recall that when it comes to absolute value expressions, once we remove the bars, it turns always to positive, so | -5 |, the bars go poof, and tada!!   5.

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3 years ago
Help please!!!!!!!!!
Liono4ka [1.6K]
-6 And 8 ok it make me have 20 c
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3 years ago
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Jill's mom made 4 pies for dessert for the week. Jill wants to bring a slice of pie to school everyday for the next 10 days. If
Andreyy89

Answer:

2/5

Step-by-step explanation:

Jill wants to eat the same amount of pie every day so we need to divide the amount of pie by the amount of time. This gives us 4/10 which simplifies to 2/5. She should bring 2/5 a pie each day.

6 0
3 years ago
How far does a train travel in 12 hours at 115 miles per hour?
zepelin [54]

Answer:1380

Step-by-step explanation: 12x115

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3 years ago
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