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Sergeeva-Olga [200]
3 years ago
15

I need help with this question pls

Mathematics
1 answer:
slamgirl [31]3 years ago
3 0

Answer:

arc length formula :

Arc length = radius x central angle in radians.

Answer you seek : is 2 or B : pie inches

Step-by-step explanation:

You might be interested in
Help me find y please​
Andreyy89

Answer:

103

Step-by-step explanation:

it has to add up to 180 so

180-77=103

3 0
3 years ago
Find the sum of the first five terms using the geometric series formula for the sequence 1/2, -1,2,-4…
sammy [17]

The sum of the first five terms is 11/2

<h3>How to determine the sum?</h3>

The series is given as:

1/2, -1,2,-4…

Calculate the common ratio of the series using

r = -4/2

Evaluate

r = -2

The sum is then calculated as:

S_n = a\frac{1 - r^n}{1 - r}

This gives

S_n = \frac{1}{2} * \frac{(1 - (-2)^5}{1 + 2}

Evaluate

S_n = \frac{1}{2} * \frac{33)}{3}

Evaluate

S_n =\frac{11}{2}

Hence, the sum of the first five terms is 11/2

Read more about series at:

brainly.com/question/11346378

#SPJ1

7 0
1 year ago
Jackie's restaurant bill was $23. 50, and the tax was 8%. Jackie left a 20% tip on the post-tax bill. How much was the tip Jacki
Ksju [112]

well, the subtotal or pre-tax bill is $23.50, now let's add the 8% tax and

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{8\% of 23.50}}{\left( \cfrac{8}{100} \right)23.50}\implies 1.88

so the post-tax bill is 23.50 + 1.88 = 25.38, and Jackie's tip is 20% of that

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{20\% of 25.38}}{\left( \cfrac{20}{100} \right)25.38}\implies 5.076\qquad \approx 5.08

6 0
2 years ago
Calculate the vertex of the quadratic function: <br> y= -4^2 + 8x -9
expeople1 [14]

Answer:

f(x)=8x-25

Step-by-step explanation:

6 0
3 years ago
Given the function P(x)=(x-1)^2 write the new function with a Dilation of 2 On THE X
yaroslaw [1]

Answer: New function is y=2(x-1)^2.

Step-by-step explanation:

  • A dilation is a transformation that creates an image using a scale factor that has the exactly same shape as the original, but have a different size.

The given function : P(x)=(x-1)^2

We know that any function y= f(x) will become y=k f(x) after dilation of k units on the x, where k= scale factor for dilation.

Here, the given scale factor = 2 i.e. k=2

Then, the new function will be :

2P(x)=2(x-1)^2

Hence, the new function is y=2(x-1)^2.

3 0
3 years ago
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