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Rashid [163]
3 years ago
15

HElp me please. You will get points.

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

the mean is 12.5

Step-by-step explanation:

DedPeter [7]3 years ago
8 0
52.8 minutes

Since it’s an estimate choose a midpoint of each category to represent its time value
15 min for 0-30 min group
45 min for 30-60
75 min for 60-90
105 min for 90-120

Then multiply the time for each group by the number of students and add together

15x7+45x27+75x12+105x4 = 2640 minutes
Then divide by the total number of students 50

2640/50=52.8 minutes
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In the figure below, if angle D measures 43 degrees, what is the measure of angle A?
Zielflug [23.3K]
Sorry where is the figure.. oiii figure where
6 0
4 years ago
Look at the picture below?
FinnZ [79.3K]

Answer:

well, okay. its basically what you wrote. assuming there was missing information.

let's dive right into it.

we'll assume that the problem asks for integers, whole numbers.

if x would be 0,

we would get 9 numbers out, 0, -1, -2, -3, -4, -5, -6, -7 and -8

if x would one, the range would be from 7 to -8, giving us 16 numbers

if x would be 2, the range would be from 14 to -8, giving us 23 numbers (7 more each time we increasex by one)

so the answer isn't a fixed value, but a function.

7x+9

the plus nine is true when x=0 and is still relevant for every other scenario

6 0
3 years ago
Write a cosine function that has a midline of 3, an amplitude of 4 and a period<br> of pi.
Artist 52 [7]

Step-by-step explanation:

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8 0
3 years ago
What expressions are equivalent to -2(4-3x)+(5x-2)​
liberstina [14]

Answer:

11x-10

Step-by-step explanation:

1.Rearrange terms

-2(4-3x)+(5x-2)

-2(-3x+4)+(5x-2)

2.Distribute

-2(3x+4)+(5x-2)

6x-8+(5x-2)

3.Eleminate redundant parentheses

6x-8+(5x-2)

6x-8+5x-2

4.subtract the numbers

6x-8+5x-2

6x-10+5x

5.Combine like terms

6x-10+5x

11x-10

•solution

11x-10

3 0
3 years ago
Hillary wrote a series of numerical expressions to generate a number pattern 3+1,3+2,3+3 which table represents inputs and outpu
loris [4]

Answer:

a) input 9,10,11

output 12,13,14

Step-by-step explanation:

If we look at the pattern, number 3 is added to the consecutive input numbers 1, 2 and 3 to generate a set of output numbers.

Clearly, option (a) follows this rule. Number 3 is added to the consecutive input numbers 9, 10 and 11 to produce 12, 13 and 14.

In option (b), 4 is added to the input numbers.

In option (c), 2 is added to the input numbers and

in option (d), 3 is multiplied to the input numbers.

Hence, the correct option is (a).

8 0
3 years ago
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