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lina2011 [118]
1 year ago
7

Решите уравнение 6x-4(x+5)=2,2

Mathematics
1 answer:
Tems11 [23]1 year ago
6 0

Answer:

x=11.1

Step-by-step explanation:

6x-4x-20=2.2

2x-20=2.2

2x=22.2

x=11.1

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valentinak56 [21]
Can you take it out of spanish. I speak english
4 0
2 years ago
A piece of nickel has a mass of 3.48kg and a volume of 400cm3.
lisov135 [29]

Answer:

density = 0.0087 kg/cm³

Step-by-step explanation:

density = mass/volume

= 3.48/400 = 0.0087 kg/cm³

4 0
2 years ago
A test has 20 questions. The test awards 3 points if the answer is correct and takes away 1 point if the answer is incorrect. A
qaws [65]

Answer:

40

Step-by-step explanation:

15x3 = 45

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5 0
3 years ago
the vertex of this parabola is at 4, -3, x-value is 5 and y-value at -6 what is the coefficient of the squared expression
posledela
Hello: 
an equation is : f(x) = a(x-4)² - 3 
the point (5 , -6)in parabola : --6 = a(5-4)² --3 
-6 =a -3
a =-3 is <span>the coefficient of the squared expression in the parabola equation</span>
6 0
2 years ago
17. Critique Reasoning Lisa used a number line to model 2(3). Does her number line make sense? Explain why or why not. 8-7-6-5-4
timama [110]

Reasoning Criticism Lisa modeled 2 with a number line (3). Her logical number line is -6.

<h3>What is meant by number line?</h3>
  • A number line is a graphical representation of numbers on a straight line. A number line has numbers that are sequentially placed at equal distances along its length.
  • It can be extended in any direction indefinitely and is usually represented horizontally. A number line is a horizontal line with mathematical increments spaced evenly.
  • The numbers on the line will determine how to answer the number on the line. The number's use is determined by the question that goes with it, such as plotting a point.
  • The number line is a straight line with divisions at equal intervals, similar to a scale.

Therefore, Reasoning Criticism Lisa modeled 2 with a number line (3). Her logical number line is -6.

To learn more about number line, refer to:

brainly.com/question/24644930

#SPJ1

8 0
1 year ago
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