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kumpel [21]
2 years ago
5

WHAT WOULD THIS BEEE

Mathematics
1 answer:
Neporo4naja [7]2 years ago
5 0
No, the angles are roughly 34, 44, and 102
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The sum of two numbers is 9. And the sum of their reciprocals is 1/2.find the numbers
Musya8 [376]
Set up a system of equations:

x + y = 9
1/x +1/y = 1/2

The easiest way to solve would be substitution.
x + y = 9 can be solved for y:

y = 9 - x

Then plug this into the second equation and solve for x:

1/x + 1/(9-x) = 1/2
(9-x) + x = x(9-x)/2
9 = (9x-x²)2
18 = 9x - x²
x² - 9x + 18 = 0
(x-6)(x-3) = 0
x = 6, 3

You can check your answer by plugging the two numbers back into both of the equations:

6 + 3 = 9
1/6 + 1/3 = 1/2

The two numbers are 6 and 3.
7 0
3 years ago
Determine whether each number is a solution of the inequality below. 3x+4<-7
ElenaW [278]

Step-by-step explanation:

3x + 4 < -7

3x < -7 - 4

3x < -11

x < -11/3 ≈ -3,666

x = {3,2,1,0, etc}

7 0
3 years ago
Someone help I don’t understand this question
VashaNatasha [74]
Hold up I have the answer
4 0
3 years ago
SOMEONE PLEASE HELP I WILL MARK U BRAINLIST
mash [69]

Answer:

x = 3

Step-by-step explanation:

In\: \triangle PQT,\: \overline{PQ}|| \overline {RS}...(Given)\\\\\implies\frac{PS}{ST}=\frac{QR}{RT}\\(By\: Proportionality\: Theorem) \\ \\\implies\frac{2x+4}{5}=\frac{3x+5}{7}\\\\ \implies \: 7(2x + 4) = 5(3x + 5) \\  \\ \implies \:14x + 28 = 15x + 25 \\  \\ 14x - 15x = 25 - 28 \\ \\ - x =  - 3 \\  \\ x = 3

7 0
2 years ago
Simplify the expresión 8(-4+-3p)
zavuch27 [327]

Answer:

-32-24p

Step-by-step explanation:

7 0
2 years ago
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