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Hitman42 [59]
2 years ago
7

Find the sum of the measures of the angles of the figure

Mathematics
1 answer:
Lisa [10]2 years ago
7 0

Answer:

The figure is missing

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Solve the equations by factoring:<br><br>x^2−3x−40=0<br><br>4x^2−81=0
Alja [10]

Answer:

see explanation

Step-by-step explanation:

Given

x² - 3x - 40 = 0

Consider the factors of the constant term (- 40) which sum to give the coefficient of the x- term (- 3)

The factors are - 8 and + 5, since

- 8 × 5 = - 40 and - 8 + 5 = - 3, thus

(x - 8)(x + 5) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 8 = 0 ⇒ x = 8

x + 5 = 0 ⇒ x = 5

------------------------------------------------------

Given

4x² - 81 = 0 ← this is a difference of squares and factors in general as

a² - b² = (a + b)(a - b), thus

4x² - 81

=(2x)² - 9²

= (2x + 9)(2x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 9 = 0 ⇒ 2x = - 9 ⇒ x = - \frac{9}{2}

2x - 9 = 0 ⇒ 2x = 9 ⇒ x = \frac{9}{2}

8 0
3 years ago
Read 2 more answers
Two of the lights at the local stadium are flickering. They both just flickered at the same time. One of the lights flickers eve
irinina [24]
1,665
because 777+888 = 1,665

7 0
3 years ago
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In what position would you find the 'leading' runner in a race? In what position do you suppose you would find the 'leading coef
TEA [102]
Since the "leading" runner in a race would be found in the first position, because he or she is in the lead, it means they are first, then I suppose I would find the "leading coefficient" in the first place in a polynomial as well. 
5 0
3 years ago
a case of plastic spoons has 8.400 spoons. there are 8 boxes of spoons in the case. how many spoons are in each box
Veseljchak [2.6K]
It's either 1050 or 1.050 if that was suppose to be a decimal or a comma after the eight
4 0
3 years ago
Planet Fitness gym charges $15 per month plus $50 for a membership. Total
hram777 [196]

Answer:

planet fitness will take one month and total fitness will take 3 months

Step-by-step explanation:

planet fitness:

75

total fitness:

25

50

75

7 0
2 years ago
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