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Neporo4naja [7]
3 years ago
8

2. In triangle ABC A = 3x + 10, B = 6x - 20and C = x + 60. Find the measure of A​

Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

49

Step-by-step explanation:

3x+10+6x-20+x+60=10x+50

10x+50=180

10x=130

x=13

A=3*13+10=49

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9. The expression x(x-7)+4(x-7) is equivalent to each of the following except which choice?
Rus_ich [418]

Answer:

I the answer is number 3

x(x-7)+4(x-7)

x²-7x + 4x-28

=x²-3x-28

(x+4)(x-7)

x²-7x+4x-28

=x²-3x-28

(x-7)(x+4)

x²+4x-7x-28

=x²-3x-28

x2 – 3x – 28

the factored form is

=(x+4)(x-7)

6 0
3 years ago
A coin is tossed and an eight​-sided die numbered 1 through 8 is rolled. Find the probability of tossing a tail and then rolling
andreyandreev [35.5K]

Answer:

5/16

Step-by-step explanation:

P(tails) = 1/2

P(>3) = 5/8

P(tails AND >3) = 1/2 × 5/8 = 5/16

3 0
3 years ago
How to find slope and y intercept 6x-5y=15?
iogann1982 [59]
We need to put this equation in y = mx + b form because in this form, the slope will be in the m position and the y intercept will be in the b position. So basically, we solve for y.

6x - 5y = 15 ....subtract 6x from both sides
-5y = -6x + 15...divide both sides by -5
(-5/-5)y = (-6/-5)x + (15/-5)...simplify
y = 6/5x - 3

y = mx + b...remember, m is ur slope and b is ur y int
y = (6/5)x + (-3).....ur slope(m) = 6/5 and ur y int (b) = -3
7 0
2 years ago
Cesar has read 89 pages of a book for his
slega [8]

Answer:

X=8

Step-by-step explanation:

First subtract the read pages with the unread pages which is 168.

Then let 21 pages = to one hour then 168pages(the remaining pages) = x then cross multiply and divide then your answer will be 8

4 0
2 years ago
Read 2 more answers
A palindrome is a word that is the same if you reverse the letters. Is this statement true or false?
Vadim26 [7]
True and True I think
6 0
3 years ago
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