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Nataliya [291]
3 years ago
12

PLEASE CAN ANYONE HELP!!!

Mathematics
2 answers:
DiKsa [7]3 years ago
6 0

Answer:

x = 3

y = 4  

hey, I am not 100% sure of the certainty of my answers, I am using what I remember about that topic but I do not know if it is right or wrong, I hope I have helped you, I did what I could.

Step-by-step explanation:

-3x + 2y = 23

5x + 2y = -17

X solution:

(you cancel the y)

-3x = 23

5x = -17

(you combine all the values above with those below)

2x = 6

(solve the ecuation normaly)

x = 6/2 = 3

Y solution:

(you replace the x)

-3(3) + 2y = 23

5(3) + 2y = -17

-9 + 2y = 23

15 + 2y = -17

(you combine all the values above with those below)

6 + 4y = 6

(solve the ecuation normaly)

4y = 0

y = 4  

(I do not really know if the answer here is 0 or 4 since when passing the 4 to divide it would be 0/4 and I do not understand very well how that is solved)

JulsSmile [24]3 years ago
3 0
You just have to put the numbers in the following order for the matrices:

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What is the area of the fire pit? (Use 3.14 for pi.)
laila [671]

Answer:

Area = 65.94

Step-by-step explanation:

I will assume that the shaded region is the fire pit

Given

R = 5

r = 2

Required

Determine the area of the fire pit

First, calculate the area of the big circle.

A_2 = \pi R^2

Area of the small is:

A_1 = \pi r^2

The area of the pit is:

Area = A_2 - A_1

Area = \pi R^2 - \pi r^2

Area = \pi (R^2 -  r^2)

Area = 3.14 (5^2 -  2^2)

Area = 3.14 (25 -  4)

Area = 3.14 * 21

Area = 65.94

5 0
3 years ago
I just need the bonus points for other assignment, it's easy.
Tema [17]

Answer:

159/day

Step-by-step explanation:

6 0
3 years ago
How to solve 2×4÷3+5
Nataly [62]

You will need to follow order of operations, which states that operations must be completed in the following order: parentheses, exponents, multiplication and division, and then addition and subtraction.


In this case, there are no parentheses and no exponents, so we will start with the multiplication and division:

2 \cdot 4 \div 3 + 5 = (2 \cdot 4 \div 3) + 5

\Bigg(\dfrac{8}{3} \Bigg) + 5


Now, we will finish by doing addition and subtraction:

\Bigg(\dfrac{8}{3} \Bigg) + 5 = \dfrac{8}{3} + \dfrac{15}{3}

\dfrac{8 + 15}{3}

\boxed{\dfrac{23}{3}}


Our answer is \boxed{\dfrac{23}{3}}.

3 0
3 years ago
Read 2 more answers
Can someone answer 1 and 2 for me? thanks so much in advance :p
mrs_skeptik [129]

i can help you with 1 .Sorry that i cant do 2 because number 2 doesnt have all the question in the photo.

  • 1 A:No
  • 1 B:Yes
  • 1 C:Yes
4 0
4 years ago
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The question I have is this 90+30+a=180
pashok25 [27]

Answer:

a = 60

Step-by-step explanation:

90 + 30 = 120

120 - 180 = 60

4 0
4 years ago
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