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murzikaleks [220]
2 years ago
6

Step 1: C = 2r Step 2: 6 = 2r Step 3: r = 6/2 Step 4: r = 3 Step 5: A = 360°/x° × × r^2 Step 6: A = 360°/72° × × (3)^2 Step 7:

A = 5 × × (3)^2 Step 8: A = 45
Identify the step where Gwen first made an error
A. Step 5
B. Step 6
C. Step 3
D. Step 7 ​

Mathematics
1 answer:
tangare [24]2 years ago
5 0

Answer: A

Step-by-step explanation:

She found the ratio of the circumference to the sector. not the ratio of the sector to the circumference.

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Cindy can read in different amounts of time 10 pages in 8minutes, 15 pages in 12 minutes and 25 pages in 20 minutes what is the
babunello [35]

Answer:

5/4

Step-by-step explanation:

10/8 = 5/4

15/12 = 5/4

25/20 = 5/4

They all simplify to 5/4.

Hope this helps!

5 0
3 years ago
If a 25 ft rope is cut into two sections with one section 4 times as long as the other section, how long is the shorter piece?
DaniilM [7]
X = short section of rope
4x = longer section of rope

x + 4x = 25
5x = 25
x = 5

…or in other words the shorter piece of rope is 5 feet long
7 0
3 years ago
Which value is NOT equivalent to the other values?
Gre4nikov [31]

it's 0.4 while it may look like 4% it's actually 40% of 1

8 0
2 years ago
Read 2 more answers
Find the Equation of x(2x+5)-3(2x+5)=0
Nata [24]
2x² + 5x -6x - 15 = 0

2x² - x - 15 = 0

2x² -x = 15

x = 3

3 x 3 = 9 x 2 = 18 - 3 = 15

i really don't know how i got 3 in the first place but that is your answer

hope this helps


5 0
3 years ago
Find the Exponential Regression using the table. Write the initial amount, common ratio, and equation for the table.
Triss [41]

Answer:

Initial temperature;

432.76

Common ratio;

-0.067

Equation;

y=432.76e^{-0.067x}

Step-by-step explanation:

In this scenario, the time in minutes represents the independent variable x while the temperature of the pizza represents the dependent variable y.

The analysis is performed in Ms. Excel. The first step is to obtain a scatter plot of the data then finally inserting an exponential trend line to obtain the required equation.

The Ms. Excel output is shown in the attachment below. To obtain the initial temperature we substitute x = 0 in the equation. On the other hand, the common ratio is the exponent in the equation.

6 0
3 years ago
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