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goblinko [34]
3 years ago
13

Please help me ASAP I’ll mark Brainly

Mathematics
1 answer:
gregori [183]3 years ago
4 0

Answer:

13

Step-by-step explanation:

Prove

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!!!!!!!I NEED HELP WITH THESE PROBLEMS. THANK YOU!!!!!
Viefleur [7K]
The answer to your question is A

6 0
3 years ago
What is one of the solutions to the following equations? y2+x2=53<br> Y-x=5
Olenka [21]
(1)  y² + x² = 53
(2)  y - x = 5 ⇒ y = x + 5

subtitute (2) to (1)

(x + 5)² + x² = 53      |use (a + b)² = a² + 2ab + b²

x² + 2x·5 + 5² + x² = 53

2x² + 10x + 25 = 53     |subtract 53 from both sides

2x² + 10x - 28 =0     |divide both sides by 2

x² + 5x - 14 = 0

x² - 2x+ 7x - 14 = 0

x(x - 2) + 7(x - 2) = 0

(x - 2)(x + 7) = 0 ⇔ x - 2 = 0 or x + 7 = 0 ⇔ x = 2 or x = -7

subtitute the values of y to (2)

for x = 2, y = 5 + 2 = 7
for x = -7, y = 5 + (-7) = 5 - 2 = 3

Answer: x = 2 and y = 7 or x = -7 and y = 3
4 0
4 years ago
Determine if (3, -1) is a solution to the system.
sp2606 [1]

Answer:

<em>There are a few ways to solve systems of equations. </em>

  1. <em>There are a few ways to solve systems of equations. substitution</em>
  2. <em>There are a few ways to solve systems of equations. substitutionelimination</em>
  3. <em>There are a few ways to solve systems of equations. substitutionelimination </em><em>Graphically</em>

<em>If you are looking at a multiple choice question use the ordered pair to plug into the answer choices and whichever one balances out will be your answer. To assist you further I would need more information from the problem. </em>

Step-by-step explanation:

<em>hope</em><em> it</em><em> will</em><em> help</em><em> you</em><em> have</em><em> a</em><em> great</em><em> day</em><em> bye</em><em> and</em><em> Mark</em><em> brainlist</em><em> if</em><em> the</em><em> answer</em><em> is</em><em> correct</em><em> </em>

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8 0
2 years ago
Need urgent help in mathematics!!  Will mark brainliest!!!!
Leona [35]
Simply find the total medium cofees sold
then divide that by the number of medium cofees that weren't caffeinated

so..
66 \div 44 = x
then
100 \div x = percentage

so x will be 1.5 & 100 ÷ 1.5 = 66.666...
rounded is 67%

67\%
4 0
3 years ago
Read 2 more answers
Find the missing angle measure.<br><br> m
Alexeev081 [22]

Answer:43 degrees

Step-by-step explanation: 47+90=137 and 180-137= 43

5 0
3 years ago
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