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VARVARA [1.3K]
3 years ago
10

HELPPPPPP WILL MARK BRAINLIEST

Mathematics
1 answer:
saul85 [17]3 years ago
3 0

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Below is the data of ages at the local swimming park on a certain day.
Alex_Xolod [135]
We know that
To determine the intervals you will need to find the lowest and highest numbers
lowest number------> 1
highest number-----> 35
(1 and 35). 

A general rule would be 5-7 intervals,
so
 I will choose 5.
Here are the intervals with the number of people that were in each:

[1-7] -----------> (9)
[8-14] ---------> (14)
[15-21] --------> (8)
[22-28] ------> (3)
[29-35]-------> (5)

The total of the frequencies was 39 people, and that is how many numbers there are.
7 0
3 years ago
Find the lengths of the segments with variable expressions
nlexa [21]

Answer:

EF = 7 units

AD =  3 units

BC =  11 units

Step-by-step explanation:

Since it is an isosceles trapezoid and the midsegment is x, the sum of the bases divided by 1/2 is the value of the midsegment, x.

x = 1/2(x-4 + 2x-3)

x = 1/2x - 2 + x - 1 1/2

x = 1 1/2 x - 3.5

-1/2 x = -3.5

x = 7 units

EF = 7 units

AD = 7-4 = 3 units

BC = 2(7) - 3 = 11 units

5 0
3 years ago
Is f(x)=(3x-6)(-4x+2) linear or quadratic
harkovskaia [24]

Answer: It is quadratic.


Step-by-step explanation:

1. You have the following function:

f(x)=(3x-6)(-4x+2)

2. To determine if it is linear or quadratic, you can apply the Distributive property of multiplication, as you can see below:

f(x)=(3x)(-4x)+(3x)(2)+(-6)(-4x)+(-6)(2)\\f(x)=-12x^{2}+6x+24x-12\\f(x)=-12x^{2}+30x-12

3. The function has the form of a quadratic function:

f(x)=ax^{2}+bx+c

4. Therefore, it is a quadratic function.


3 0
3 years ago
Last answer choice is 4,2<br><br> Help
Troyanec [42]

Use the midpoint formula:

(-7,-4) (-1,8)

(-7 + -1) /2 ,  (-4 +8) /2

-8/2 , 4/2

Midpoint = (-4,2)

7 0
3 years ago
How to write the number 103,727,495 in expqnded form
Charra [1.4K]
103,727,495 = 100,000,000 + 3,000,000 + 700,000 + 20,000 + 7,000 + 400 + 90 + 5
8 0
3 years ago
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