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Ivan
3 years ago
12

Estimate the product 57×29

Mathematics
1 answer:
love history [14]3 years ago
8 0
  58
x29
___
1,503 =
1,500
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And another! Apparently you use the distributive property to remove the parentheses. .-.
Tju [1.3M]
6v+4w-4
Because you do -*-6v=positive 6v then -*-4w=positive 4w and then -*4=-4 and that takes care of the parenthesis
Basically you multiply the outside number or sign by all things inside the parenthesis
So in this problem you multiplied the negative sign by all the things inside the parenthesis
8 0
3 years ago
What value of x is in the solution set of 2(3x-1) ≥4x-6​
astra-53 [7]

Answer:

\large\boxed{x\geq-2\to x\in[-2,\ \infty)}

Step-by-step explanation:

2(3x-1)\geq4x-6\qquad\text{use distributive property}\ a(b-c)=ab-ac\\\\(2)(3x)-(2)(1)\geq4x-6\\\\6x-2\geq4x-6\qquad\text{add 2 to both sides}\\\\6x\geq4x-4\qquad\text{subtract 4x from both sides}\\\\2x\geq-4\qquad\text{divide both sides by 2}\\\\x\geq-2

4 0
3 years ago
Write an equation in slope-intercept form for the line passing through the pair of points.
damaskus [11]

Answer:

<h2>A) y= -x + 1</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line<em>:</em>

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

==========================================

We have the points (-1, 2) and (4, -3).

Calculate the slope:

m=\dfrac{-3-2}{4-(-1)}=\dfrac{-5}{5}=-1

Put the value of the slope an the coordinates of the point 9-1, 2) to the equation of a line:

2=(-1)(-1)+b

2=1+b              <em>subtract 1 from both sides</em>

1=b\to b=1

Finally:

y=-x+1

7 0
3 years ago
Y=x^(2) -2x - 3 and y = x - 3
Oliga [24]

Answer:

(0, -3) and (3, 0)

Explanation:

1st equation: y = x² -2x - 3

2nd equation : y = x - 3

Using substitution method:

x² -2x - 3 = x - 3            <em>exchange sides</em>

x² - 2x - x - 3 + 3 = 0    <em>simplify</em>

x² - 3x = 0   <em>                 take common factor</em>

x(x - 3) = 0                    <em>simplify</em>

x = 0, 3

Solve for y:

when x is 0, y = x - 3 = 0 - 3 = -3

when x is 3, y = x - 3 = 3 - 3 = 0

5 0
1 year ago
A circular piece of glass has a radius of 2.1 meters. The glass sells for $1.70 per square meter. What is the total cost of the
romanna [79]
A=π r^2    so pi times radius squared

7 0
3 years ago
Read 2 more answers
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