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Aneli [31]
3 years ago
9

Evaluate 2x2 - 1 when x = 3.

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0
When x is evaluated to 3 you get 11.

2(3)2-1 = 11
tigry1 [53]3 years ago
6 0
X should equal 11
2(3)2-1
6(2)-1
12-1
11
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Burka [1]
There would be 3 triangles formed.
Each interior angle of a triangle will sum up to 180 degrees.

The 1st triangle will have 130,25, and 25 as its angle measures.

The angle 130 degrees will be divided into 2 to create 2 right triangle. Each triangle will have angle measurements of 25, 65, and 90 degrees.

8 0
3 years ago
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Solve each inequality <br> 2v&gt;10
34kurt
Hey there 

Solution

1) <span>Divide each side by</span> 2 
<span>v > </span>\frac{10}{2}

2) Simplify \frac{10}{2} to 5
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3 years ago
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ss7ja [257]
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5 0
3 years ago
a school band ordered hats for $3 and large t-shirts for 5$ they bought 150 items in all tor $590. graph a system of equations t
ikadub [295]
H=hats
s=shirts
Here, you need to do 2 equations.
h+s=150
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3h+750-5h=590
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h=80
150-80=70 so s=70

i am sorry, this is all i know, but you need to make an equation to graph it.
5 0
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Pls help w work and explanation fast thanks
Inga [223]

Answer:

I would choose two 12 inch pizza if I want more pizza as two 12 inch pizzas have larger circumference than one 18 inch pizza

c=πd

circumference= pie × diameter

c=2πr

circumference= 2×pie×radius

A=πr²

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Pie= 22/7, 3.14( depends on the question, sometimes the value of pie will be given in the question)

radius= half of diameter

To find perimeter of circle use 2πr

To find area of circle use πr² or πd

3 0
3 years ago
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