2 years ago

SO

Mathematics

1 answer:

melamori03 [73]2 years ago

4 0

Answer:

Third option

Step-by-step explanation:

Given the following question where...

$180 = a1+a2+a3$

A triangle adds up to 180 degrees

50 + 120 = 170 + 10 = 180

The measurement of the third angle is 10 degrees or the third option.

Hope this helps.

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An equation in the form ax2+bx+c=0 is solved by the quadratic formula. The solution to the equation is shown below.x=−7±√ "572"

7nadin3 [17]

Answer:

B: a = 1, b= 7, c = -2

Explanation:

$\sf Quadratic \ Equation : \dfrac{-b\pm \sqrt{b^2 - 4ac} }{2a}$

Knowing This:

solve for b

-b = -7

b = 7

solve for a:

2a = 2

a = 1

solve c:

b² - 4ac = 57

7² - 4(1)(c) = 57

-4c = 57 - 49

-4c = 8

c = 8/-4 = -2

4 0

1 year ago

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Rewrite (3b) to the second power without the exponents

Alik [6]

3bx3bx3b

27xbxbxb

hope this helps

5 0

3 years ago

(16+5) + blank = 16 + (5+10)

Murrr4er [49]

Answer:

Im not sure, but I think its like this...

Step-by-step explanation:

(16+5) + 10 = 16 + (5+10)

I hope this is correct!!

3 0

3 years ago

Verity's sock drawer contains 9 black socks, 5 white socks, and 6 brown socks. If Verity chooses a sock at random, what is the p

Y_Kistochka [10]

Answer:

14/20.

Step.-by-step explanation:

There are 20 socks in the drawer.

The number which are not brown = 9 + 5 = 14.

So the required probability = 14/20.

3 0

3 years ago

PLZ HELP BRAINLIEST THANKS AND 20 POINTS ADDED

schepotkina [342]

Circumference=diameter times pi
diameter=12
circumference=12 times pi
we use pi=3.14
circumfernce=12 times 3.14
circumference=37.68 ft
round to tenth
8 is greater than 5 so roundup
37.7ft

3 0

3 years ago

Read 2 more answers