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34kurt
2 years ago
7

I need help with these, can someone help?

Mathematics
1 answer:
Arada [10]2 years ago
8 0
2*3.14*25+2*3.14*5=188.5 (rounded answer) I substituted 3.14 for pi while typing because there's not a pi key, but use the pi button on your calculator while doing the problem
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In the figure below, ∆ABC ~ ∆QRS.
sergiy2304 [10]

QS/AC=6/60=1/10

QR/AB=QR/50=1/10

QR=5

SO THAT TRIANGLE ABC IS EQUAL TO TRIANGLE QRS(2SIDES PROPORTIONAL.INC. ANGLE)

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Which is the best estimate for the sum 2/9 +10/11 ?
irakobra [83]

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D

Step-by-step explanation:

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3 years ago
The estimated quotient of 895 divided by 19 is what number?a. 40 b. 45 c. 55 d. 60
Ira Lisetskai [31]

Answer:

b. 45

Step-by-step explanation:

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--

another way:

round 895 (900) and 19 (20)

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7 0
3 years ago
Find the equation of the line <br> Use exact numbers <br><br> Thank you in advance!
Taya2010 [7]

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5 0
2 years ago
Find the equation of the inverse.<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%7B2%7D%5E%7Bx%20%2B%205%7D%20%20-%206" id="TexF
Contact [7]

Find the equation of the inverse.

y =  {2}^{x + 5}  - 6

we have

y=\mleft\{2\mright\}^{\mleft\{x+5\mright\}}-6

step 1

Exchange the variables

x for y and y for x

x=\{2\}^{\{y+5\}}-6

step 2

Isolate the variable y

(x+6)=2^{(y+5)}

apply log both sides

\begin{gathered} \log (x+6)=(y+5)\cdot\log (2) \\ y+5=\frac{\log (x+6)}{\log (2)} \\  \\ y=\frac{\log(x+6)}{\log(2)}-5 \end{gathered}

step 3

Let

f^{(-1)}(x)=y

therefore

the inverse function is

f^{(-1)}(x)=\frac{\log(x+6)}{\log(2)}-5

7 0
1 year ago
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