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Musya8 [376]
3 years ago
5

Please help me I need this done in 5 min Solve the system for x and y: x+cy=d x-dy=c

Mathematics
1 answer:
aliina [53]3 years ago
7 0
Answer- y=(d-c)/ (c+d), x=d-(c(d-c))/(c+d)
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0.10, 0.18, 0.5, 0.75
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Find the value of Theta in these diagrams (a and b)​
ZanzabumX [31]

a. θ = 36. 9°

b. θ = 114. 2°

<h3>How to determine the value of theta</h3>

a. We use the cosine identity

cos θ = adjacent/hypotenuse

Adjacent = 4cm

Hypotenuse = 5cm

cos θ = 4/ 5

cos θ = 0. 8

Now, we have the inverse of the cosine value

θ = cos^-1 (0. 8)

θ = 36. 9°

b. We use the tangent identity

tan a = opposite / adjacent

tan a = 3. 8/1. 7

tan a = 2. 23

a = tan^-1 ( 2. 23)

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We have;

a + θ = 180 °; angles on a straight line

θ = 180 - 65. 9

θ = 114. 2°

Learn more about trigonometric identities here:

brainly.com/question/7331447

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5 0
1 year ago
In a fruit cocktail, for every 12 ml of orange juice you need 8 ml of apple juice and 50 ml of coconut milk. What is the ratio o
Luba_88 [7]

Answer:

6:25:4

Step-by-step explanation:

12 ml of orange juice:50ml coconut milk: 8 ml orange juice

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5 0
3 years ago
Select the correct answer.
ss7ja [257]

Answer:

c

Step-by-step explanation:

because x=9

3 0
3 years ago
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kozerog [31]

Answer:

In other words, $100 in 1987 is equivalent in purchasing power to about $227.09 in 2020, a difference of $127.09 over 33 years. The 1987 inflation rate was 3.65%. The current inflation rate (2019 to 2020) is now 2.49% 

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4 years ago
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