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CaHeK987 [17]
2 years ago
13

Help?? This question is gonna be similar to a test question tommorow i do not understand

Mathematics
1 answer:
tigry1 [53]2 years ago
8 0
You should calculate( the area of a circle of radius 15 cm ) minus the area of the circle of radius (15 cm - width of the frame). I am not able to read the number, sorry. 
That is the surface area of the frame.

Then, if area of circle radius is 100%, the % of face of the clock is:

(100xareaCircle(15cm-widthframe))/areaCircle15cm


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Select the correct location on the number line. Which point on the number line represents the approximate volume of a cylinder w
mart [117]

Answer:

the answer is 37.7 so the point closest to 40.

Step-by-step explanation:

5 0
3 years ago
Which pair of angles must be supplementary?
Alenkasestr [34]
The answer is: <4 and <5

7 0
3 years ago
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It always confuses me when they make me do the baby steps
fgiga [73]

A. Alright, we want to multiply one equation by a constant to make it cancel out with the second. Since the first equation has a "blank" y, let's multiply the first equation by <em>2</em>.

3x-y=0 → 2(3x-y=0) = 6x - 2y = 0

5x+2y=22


The answer for this part would be: 6x - 2y = 0 and 5x + 2y = 22


B. So now we combine them:

6x - 2y = 0

+ + +

5x + 2y = 22

= = =

11x + 0 = 22 ← The answer


C. Now that we have the equation 11x = 22, we solve for x

11x = 22 ← Divide both sides by 11

x = 2 ← The answer


D. Now that we have x=2, we plug that back in to 5x+2y=22 and solve for y:

5(2)+2y = 22

10 + 2y = 22

2y = 12

y = 6


<u>Therefore, the solution to this problem is x = 2 and y = 6</u>


5 0
3 years ago
a) Read section 1.5 in the Yakir textbook. If you were a teacher and had 30 students in your class and wanted to know the class
OlgaM077 [116]

Answer:

Parameter

Step-by-step explanation:

Required

Parameter of Statistic

From the question, we understand that the teacher is to calculate the class average.

To calculate the class average, the teacher will use the mean function/formula, which is calculated as:

Mean = \frac{\sum x}{n}

Generally, mean is an example of a parameter.

<em>So, we can conclude that the teacher will use parameer</em>

7 0
3 years ago
F(x)=x^2+3x ... find f(2-a)
olga2289 [7]
(2-a)^2 + 3(2-a)




A^2 -2a + 4 + 6 -3a



A^2 -5a +10
7 0
3 years ago
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