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neonofarm [45]
2 years ago
7

PLEASE HELP ME THIS IS DUE TODAY AND I AM DEPRESSED ( uhm look at photo )

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
4 0

Answer:

C. 19

B. 47

C. 12

C. 10

C. -8

Step-by-step explanation:

for each equation you take the number given, input it as the value of the variable, and evaluate the equation

hopefully this helps :)

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Solve each equation by either substitution or addition method.
irina [24]

Answer: (2,2), (4,2)

First, I subtracted 2y from both sides of the second equation. Then, I substituted -2y+6 in for x in the first equation (-2y+6)²+4y²=20. Then, I expanded 4y²-24y+16+4y²=20. Next, I combined like terms, and moved everything to one side 8y²-24y+16=0. Then, I factored out an 8, and then finished factoring 8(y-2)(y-1). This gives me my y-values, y=1,2. Next, I inserted each y-value into the second equation and got x=-2(1)+6 ---> x=4 (The first solution is (4,1). ) and x=-2(2)+6----->x=2 (The second solution is (2,2).

6 0
3 years ago
In the mathematical expression 4 * 3 + 15 / 3 - 6, which operation is performed first?
sveta [45]
Multiplication would be first 
5 0
3 years ago
a farmer sold 2/5 of his cows and another 10th was stolen he then gave 20% of the cows that was left what percentage of the cows
igor_vitrenko [27]

Answer:

4/5 of the cattle is left

Step-by-step explanation:

Given,

A farmer sells 2/5 of his cattle

Let "x" be the total number of cattle

Then,

sold = 2 / 5 x

Then,

Remaining = x - 2x / 5

remaining = 3x / 5

He gives 1/3 of the remainder to his son

son = 1 / 3 × 3x / 5

son = x / 5

Then,

Remaining = 3x / 5 - x / 5

Remaining = 4x / 5

Hope this answer helps you :)

Have a great day

Mark brainliest

Thus 4/5 of the cattle is left

8 0
3 years ago
CAN ANYONE HELP ME ANSWER THIS ​
natita [175]

Half of the time so you will get heads 100 times

3 0
3 years ago
Read 2 more answers
Which interval for the graphed function contains the local maximum?
postnew [5]

The interval of the function that contains the local maximum is given by:

[0, 2].

<h3>What is the question?</h3>

The graph of the function that we want to analyze the behavior is missing. It states that:

  • The function is decreasing from negative infinity to x = -0.8.
  • Then the function increases from x = -0.8 to x = 1.55.
  • After that, the function decreases until infinity.

<h3>What is a local maximum in a function f(x)?</h3>

A local maximum in a function f(x) is a value of x at which the function changes from increasing to decreasing.

Researching this problem on the internet, and looking at the graph, the function changes from increasing to decreasing at point x = 1.55, hence the interval that contains the local maximum of the function is:

[0, 2].

More can be learned about local maximums at brainly.com/question/13333267

#SPJ1

6 0
1 year ago
Read 2 more answers
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