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rewona [7]
3 years ago
15

Which Expression is equivalent to -0.3(1.5x-0.6)-2(-0.4+0.9x)

Mathematics
2 answers:
Llana [10]3 years ago
5 0

<em>The</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>of</em><em> </em><em>option</em><em> </em><em>D</em><em>.</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em>

zhannawk [14.2K]3 years ago
5 0
I the correct answer is D

Hope that helps
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Find the value of c that completes the square for the function f(x)= x2 + 4x + C.
nydimaria [60]

Answer:

=  - 4 \times 2 + 4 \times ( - 4) + c \\   = - 8  - 16 + c \\  = 24 + c \\  \frac{ - c}{ - 1}  =  \frac{24}{ - 1}  \\ c =  - 24

7 0
2 years ago
Please help me, Identify each pair of angles named below as adjacent angles or vertical angles.
jarptica [38.1K]

Adjacent angles:

-ADB and BDC

-BDC and CDE

-CDE and EDF

-FDG and GDA

-GDA and ADB

Vertical angles:

-GDA and CDE

-FDE and ADB

-GDF and BDC

Hope this helps! :)

5 0
3 years ago
Explain why the x-coordinates of the points where the graphs of the equations y = 2−x and y = 8x+4 intersect are the solutions o
Luda [366]
Part 1)
We have two lines:  y = 2-x   and   y = 8x+4
Given two simultaneous equations that are both required to be true.
the solution is the points where the lines cross
Which is where the two equations are equal
Thus the solution that works for both equations is when
2-x = 8x+4
because
where that is true is where the two lines will cross and that is the common point that satisfies both equations.

Part 2) Make tables to find the solution to 2−x = 8x+4. take the integer values of x between −3 and 3

see the attached table
The table shows that none of the integers from [-3,3] work because in no case does
<span>2-x = 8x+4
</span>
To find the solution we need to rearrange the equation to the form x=n
2-x =8x+4
8x+x=2-4
9x=-2
x=-2/9

 The only point that satisfies both equations is
where
 x = -2/9
Find y:
   y = 2-x  = 2 - (-2/9) = 2 + 2/9 = 20/9
Verify we get the same in the other equation
y = 8x+4   =  8(-2/9) + 4 = 20/9 
Thus the only actual solution, being the point where the lines cross,
 is the point (-2/9, 20/9)------> (-0.22,2.22)

Part 3) how can you solve the equation 2−x = 8x+4 graphically?
<span>The point on the graph where the lines cross is the solution to the system of equations
</span>
using a graph tool
see the attached figure

the solution is the point (-0.22,2.22)

4 0
3 years ago
Convert percents to fractions (Write the answer in SIMPLEST FORM)
Grace [21]
1/4;2/5;83/100;3/2;7/10;4/5
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3 years ago
Jonathon stated that 0.20 of his coins were quaters. What percentage of jonathons coins are quaters
Anastasy [175]
20%, because 20/100 is equal to 20&.
Hope this helps!
8 0
3 years ago
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