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noname [10]
3 years ago
9

In circle Q with m \angle PQR= 58m∠PQR=58 and PQ=4PQ=4 units find area of sector PQR. Round to the nearest hundredth.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

8.1

Step-by-step explanation:

59/360(π4^2)

= 8.1

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2. Your friend wants to write the equation of a quadratic function 1 5. 3.r = 1) that has zeros at 3 and 3. They want to use the
Feliz [49]

Let's expand both options, your friend's and yours, as shown below

\begin{gathered} y=(3x+1)(3x-5)=9x^2-12x-5=9(x^2-\frac{4}{3}x-\frac{5}{9}) \\ \text{and} \\ y=(x+\frac{1}{3})(x-\frac{5}{3})=x^2-\frac{4}{3}-\frac{5}{9} \end{gathered}

Then, both equations are the same besides a constant that will not affect the zeros of the functions, as shown below

\begin{gathered} y=(3x+1)(3x-5) \\ x=-\frac{1}{3} \\ \Rightarrow y=(-1+1)(-1-5)=0 \\ \text{and} \\ x=\frac{5}{3} \\ \Rightarrow y=(5+1)(5-5)=0 \\  \end{gathered}

And

\begin{gathered} y=(x-\frac{5}{3})(x+\frac{1}{3}) \\ x=-\frac{1}{3} \\ \Rightarrow y=(-\frac{1}{3}-\frac{5}{3})\cdot0=0 \\ x=\frac{5}{3} \\ \Rightarrow y=0\cdot(\frac{6}{3})=0 \end{gathered}

Both your friend and you are correct. The functions are the same with exception of a constant that multiplies the whole function (a scale factor); despite that, the zeros are the same for both functions

(3x-5)(3x+1)=9(x+\frac{1}{3})(x-\frac{5}{3})

7 0
2 years ago
Is 1.2/3 and 1.8/ 4/5 proportional
Stella [2.4K]

Answer:

No

Step-by-step explanation:

1.2/3 =0.4

4/5 can be written as 0.8

So, 1.8/0.8 = 2.25.

However, 1.8/4/5 is the same as:

1.8/1 ÷ 4/5

Keep Change Flip

1.8/1 x 5/4 = 9/4

(1.8 x 5=9 & 1 x4 =4)

9/4 =2.25

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3 years ago
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3 years ago
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What is the quotient of 3,968 ÷ 32? (2 points)
olga2289 [7]
<span>This is pretty easy, the answer is 124</span>
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Someone please help me
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That is C and B. The missing lengths

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