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stepan [7]
3 years ago
14

ANSWER CORRECTLY ILL GIVE BRAINLIST IF RIGHT :D

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Use the Pythagorean theorem:

30^2 + 40^2 = X^2

900+ 1600 = x^2

X^2 = 2500

x = √2500

x = 50

The answer is 50 feet.

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Part 1:
emmasim [6.3K]
Here are my answers to the given questions above:
Part 1. Here is my example of a real life scenario that describes what is happening. Let us say, I have 2 cookies and the bottle of milk costs 11 dollars, and 3 cookies and 4 bottles of milk cost 24 dollars.
Part 2. 
y=11-2x
3x+4(11-2x)=24
3x+44-8x=24
-5x=-20
x=4
y=11-8
y=3
Therefore, each cookie costs 4 dollars, and a bottle of milk costs 3 dollars.
Hope this answer helps. Let me know if you need more help next time.
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7 0
3 years ago
Y+5<br> ——=0 solve for y<br> X-1
Ira Lisetskai [31]

Answer:

y = -5

Step-by-step explanation:

see the pic for the steps . .

5 0
4 years ago
a dollar bill has length of 150 mm and a width of 50 mm . complete the number sentences below to show two ways to find the perim
marysya [2.9K]
<u><em>Hey There!</em></u>
<u><em>Perimeter=L+W×2</em></u>
<u><em>Perimeter=150+50×2</em></u>
<u><em>Perimeter=200×2</em></u>
<u><em>Perimeter=400</em></u>
8 0
4 years ago
2x - y = 10<br> y = -x - 1<br> Solve the system of equations
alekssr [168]
X= 9<span> and y= </span><span>8 ----------------------------------------------------------</span>
8 0
4 years ago
Given f(x)=2x+3 and g(x)=x^2-5, find the following
dalvyx [7]

a) 13

b) 0

c) 1

d) 4/9

<h3>What is function?</h3>

An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)

Given:

f(x)= 2x+3 and g(x)= x²-5.

a) (f+ g)(3)

= f(3)+ g(3)

= 2(3)+3 + (3)²-5

=6+3+9-5

=13

b)  (f-g)(4)

= f(4)- g(4)

= 2(4)+3 - (4)²+5

=8+3-16+5

= 0

c) (fg)(-2)

= f(-2)*g(-2)

=[ 2(-2)+3][(-2)² -5 ]

=(-1)(-1)

= 1

d)  (g/f)(3)

= g(3)/f(3)

= 3²-5/ 2(3)+3

= 4/9

Learn more about this concept here:

brainly.com/question/93497

#SPJ1

7 0
2 years ago
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