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Bess [88]
2 years ago
9

Which rule describes rotating 90° counterclockwise?

Mathematics
1 answer:
Serhud [2]2 years ago
3 0
The first one answer
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State which of these expressions can be written as
omeli [17]
The answer is B y+y+y
4 0
3 years ago
2x + 8 - 3x = 3 What is x and please show your work
Nitella [24]
So what you will need to do is subtract 2x - 3x = -x, then subtract three from both sides 8 - 3 and the answer will be -x + 5
7 0
3 years ago
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Which best describes the figure that is represented by the following coordinates?
Anastasy [175]

Answer:

a rhombus that is the answer

7 0
3 years ago
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What is the a-value of the function, then determine if the graph opening up or down f(x)=−5(x+7)2+6?
Kay [80]
We know that
the equation of the vertical parabola in the vertex form is
<span>y=a(x-h)²+k
</span>where 
(h,k) is the vertex of the parabola
if a> 0 then
 the parabola opens upwards

if a< 0
then the parabola open downwards

in this problem  we have
f(x)=−5(x+7)²<span>+6
</span>a=-5
so
a< 0 -------> the parabola open downwards

the vertex is the point (-7,6) is a maximum

the answer is the option
<span>a = -5, opens down</span> 

see the attached figure

6 0
3 years ago
Read 2 more answers
Solve 2(4 x + 3) &lt; 5 x + 21. { x | x &lt; 9} { x | x &gt; -5} { x | x &gt; -9} { x | x &lt; 5}
Nesterboy [21]

Answer:

x <5

Step-by-step explanation:

2(4 x + 3) < 5 x + 21

Distribute

8x +6 < 5x +21

Subtract 5x from each side

8x -5x +6 < 5x-5x+21

3x +6 < 21

Subtract 6 from each side

3x+6-6 <21-6

3x <15

Divide each side by 3

3x/3 <15/3

x <5

5 0
3 years ago
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