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yKpoI14uk [10]
3 years ago
5

What is the length of AB ? 4 units 5 units 6 units 7 units

Mathematics
2 answers:
MrRissso [65]3 years ago
5 0
The answer is 5 units
masya89 [10]3 years ago
4 0
Just estimating here, but i believe that it is 6. 
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Pls show work?!!!!!!!
Paraphin [41]

Answer: 55.5 (A.)

Step-by-step explanation:

Since angle A = 29 and angle B = 41, angle C must be equal to 110

180 = m<A + m<B + m<C

180 = 29 +41 + m<C

180 = 70 + m<C

110 = m<C

Therefore, side c must be the longest, side b must be the second longest, and side a must be the shortest.

Since side length a, angle A, and angle B are known, one can use the law of sines to solve for side b.

Law of Sines: sinA/a = sinB/b = sinC/c

sinA/a = sinB/b

sin29/41 = sin41/b

b(sin29/41) = sin41

b = 41(sin41)/(sin29)

b = 55.48

b = 55.5

7 0
2 years ago
What is the value of -9 1/5 - 10 + 2/5 + 2(14 1/2 - 7)?​
Art [367]

Answer:

-9 1/5 - 10 + 2/5 + 2(14 1/2 - 7) = -3.8

Step-by-step explanation:

7 0
3 years ago
Solve 2x2 + 12x - 14 = 0 by completing the square
vovangra [49]

Answer:

<h2>x = -7 or x = 1</h2>

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\2x^2+12x-14=0\qquad\text{divide both sides by 2}\\\\x^2+6x-7=0\qquad\text{add 7 to both sides}\\\\x^2+2(x)(3)=7\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=7+9\\\\(x+3)^2=16\Rightarrow x+3=\pm\sqrt{16}\\\\x+3=-4\ or\ x+3=4\qquad\text{subtract 3 from both sides}\\\\x=-7\ or\ x=1

5 0
3 years ago
A commuter has $245 in his computer savings account.This account changes by $-15 each week he buys a ticket.In one period,the ac
Levart [38]
He needs $395, cuz he already had $5, and 15×20=300. subtract the 5 from 300.
3 0
3 years ago
Help me please I am very confused T-T
Daniel [21]
I believe you do 180 - 149 because it's a linear pair, it makes a t shape!!
8 0
2 years ago
Read 2 more answers
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