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fiasKO [112]
3 years ago
8

Math problem for high school

Mathematics
2 answers:
dedylja [7]3 years ago
6 0

Answer:

50/3

Step-by-step explanation:

area of triangle = 10

area of circle = 10

area of triangle + area of circle = 20

The white sector of the circle has central angle 60°.

Its area is 1/6 the area of the circle.

To find the gray area, you must subtract the white area from the area of the circle and also subtract the white area from the area of the triangle. Two times the white area is 1/3 the area of the circle.

gray area = 20 - (1/3)10

gray area = 20 - 10/3

gray area = 60/3 - 10/3

gray area = 50/3

yuradex [85]3 years ago
3 0

Answer:

The white sector of the circle = (1/6) (10) = 10/6 = 5/3

So....the grey area = 10 + 10 - 2 (5/3) = 20 - 10/3 = 60/3 - 10/3 = 50 / 3

MARK BRAINLIEST

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Determine whether the underlined value is a parameter or a statistic. A study of 6076 adults in public rest rooms found that 23%
PtichkaEL [24]

Answer:

C

Step-by-step explaination:

A statistic is a data obtained by sampling a population

A sample is a part of a population studied for the purpose of testing of an hypothesis

6076 is a statistical value because it represents a part (sample) of the whole population

8 0
3 years ago
EXPERTS AND ABOVE ONLY
yawa3891 [41]
1. This must be greater than or equal to 0 (there can't be any negatives!)
8 - .5t ≥ 0.
8 ≥ .5t 
t ≤ 16
D. 

2. 4(2x-1) = 2x + 35
8x - 4 = 2x + 35
6x = 39
x = 6.5
H.

3. c = .8(x-15) = .8x-12
A.

4. m = number of marble cupcakes
s = number of strawberry shortcake cupcakes

6m + 8.5s = 391
m = 1/2s
6(.5s)+8.5s = 391
11.5s = 391
s = 34
m = 17
F.

5. B
6. Use substitution
2x + 3x = 10
5x = 10
x = 2

7.  (sorry I'm not sure!)

8. G
9. L = number of balls
B = number of bats
L + B = 100
B = 100 - L
4.5L+20B = 822
4.5L + 20(100-L) = 822
4.5L -20L + 2000 = 822
1178 = 15.5L
L = 76

10. J

8 0
3 years ago
i need help with this if you help me i will mark you as brainliest if its right please dont put the answer in a file
STatiana [176]

Answer:

more than 7

Step-by-step explanation:

4+3 = 7

)sorry if i was wrong(

5 0
3 years ago
Read 2 more answers
4768 in standard form?​
slavikrds [6]

Answer:

4.768×10^3

Step-by-step explanation:

4768 in standard form:

4.768 *10^3

7 0
3 years ago
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Data were collected from a typing class with 45 students. The class had an average of 56 words per minute (WPM) with a standard
STALIN [3.7K]

Answer:

Standard deviation gets smaller

Step-by-step explanation:

No. of students = 45

The class had an average of 56 words per minute (WPM) with a standard deviation of 7 WPM.

Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\56=\frac{Sum}{45}\\56 \times 45=Sum\\2520=Sum

The teacher realized that the data from one student who typed 55 WPM was not entered.

So, new sum = 2520+55

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So, new mean =\frac{2575}{45}

New mean =57.22

Standard deviation is the measure of distance between observation and mean

So, if number gets closer to mean , Standard deviation gets smaller . if the numbers get bigger , Standard deviation gets bigger.

Since 55 is closer to 57.22

So, Standard deviation gets smaller

4 0
3 years ago
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