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Likurg_2 [28]
4 years ago
6

Please answer fast I have been work on it for a week .thank you ​

Mathematics
1 answer:
Ket [755]4 years ago
8 0

Answer:

A) 3x-5=25

I'll try my best on the others

B) x+y^2=18

C)x•6/5=x+4 ????

D).5+x=2-4???

That's all I know :/

Step-by-step explanation:

yeah I'm not sure lol

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Evaluate −x2+4x+1 when x=−2.
Misha Larkins [42]
Y = -(-2)^2 + 4(-2) + 1
y = -4 - 8 + 1
y = -11
6 0
3 years ago
An archer shoots an arrow up towards a target located on a hill, which is shown by the graph. Which set of equations best models
Gekata [30.6K]

The set of equations best models the point of intersection of the arrow and the target is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

<h3>What are the equations of the point of intersection?</h3>

To find the equations, we have to look at two things.

  • The coordinates of the point.
  • The behavior of the arrows trajectory, that is, if it's concave up or concave down.

The coordinates of the point are (35, 4.2), hence the best linear representation is:

y = 0.12x.

This leaves the first two options. The trajectory is concave down, which removes the second option, hence the correct option is:

y = –0.008x² + 0.2x + 7 and y = 0.12x.

A similar problem, involving a point of intersection, is given at brainly.com/question/11337174

#SPJ1

7 0
2 years ago
Select the correct answer.
lara [203]
First convert them to fractions (the answer choices are fractions):

a) 0.333... = 1/3
b) 0.555... = 5/9

Now add a and b:

1/3 (or 3/9 for a common denominator) + 5/9 = 8/9

That fraction is in simplest form, so leave it as it is.

Hope this helps!
3 0
4 years ago
The sum of two numbers is thirty. Three times the smaller is equal to two times the larger.
Ad libitum [116K]
X + y = 30
3x = 2y
y = 30 - x

3x = 2(30 - x)
3x = 60 - 2x
5x = 60
x = 12

12 + 18 = 30
7 0
4 years ago
Help me please fast and please explainnnnnn
alexira [117]

Answer:

I'm pretty sure it's 1 cup of water

You need 2 cups of pancake mix more than water so if you have 3 cups of pancake mix then you'd need 1 cup of water.

6 cups of mix = 4 cups of water

the cups of the mix is are 2 more cups than the water

3 cups of mix = 1 cup of water

I hope that helps and good luck! :)

5 0
3 years ago
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