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Vadim26 [7]
4 years ago
5

Find the function satisfying the differential equation f′(t)−f(t)=3t f′(t)−f(t)=3t and the condition f(1)=−1f(1)=−1.

Mathematics
1 answer:
Colt1911 [192]4 years ago
7 0
Try this solution (see the attachment).

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Can you help me with numbers 20-22 please a lot of points
arsen [322]
We could find the slope with this formula
m = (y₂ - y₁)/(x₂ - x₁)
with (x₁,y₁) and (x₂,y₂) are the points that is located on the line.


NUMBER 20
Given:
(x₁,y₁) = (-2,3)
(x₂,y₂) = (7,-4)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (-4 - 3) / (7 - (-2))
m = -7 / (7+2)
m = -7/9

The slope of the line is -7/9


NUMBER 21
Given:
(x₁,y₁) = (-6,-1)
(x₂,y₂) = (4,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1-(-1)) / (4 -(-6))
m = (1+1) / (4+6)
m = 2/10
m = 1/5

The slope of the line is 1/5


NUMBER 22
Given:
(x₁,y₁) = (-9,3)
(x₂,y₂) = (2,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 3) / (2 - (-9))
m = -2 / (2 + 9)
m = -2/11

The slope of the line is -2/11
6 0
3 years ago
All books in a store are being discounted by 40%. let x represent the regular price of any book in the store which expression de
antoniya [11.8K]
To find the sale price<span> we can set up a proportion. 25/100 = </span>x<span>/48. We keep the 100 and 48 both on the bottom of the fraction since they </span>represent<span> the "whole". </span>x represents<span> the </span>discount<span> off the </span>full price<span> of the dress. To solve this proportion, we cross multiply, yielding 48 * 25 = 100x. Alternatively, </span>if<span> you notice that 25/100 ...</span>
6 0
3 years ago
Venn diagram question really
-BARSIC- [3]
Hello!

1.
You have to add all the numbers up in the venn diagram to get how many people participated

18 + 11 + 24 + 8 + 7 + 1 + 17 = 86

The answer is 86 people
------------------------------------------------------------------------------------------------------
2.
To find how many people like country you add all the numbers in the country circle

8 + 7 + 1 + 17 = 33

The answer is 33 people
------------------------------------------------------------------------------------------------------
3.
To find how many people likes only country music you look at the number that is only in the country circle

The answer is 17 people
------------------------------------------------------------------------------------------------------
4.
To find how many people like rap and country you add the numbers that are in both of the circles

1 + 7 = 8

The answer is 8 people
------------------------------------------------------------------------------------------------------
5.
To find the amount of people that liked rap and country but not rock you look at the number in only the rap and country circle

The answer is 1 person
------------------------------------------------------------------------------------------------------
6.
To find how many people liked rock or rap you add all the numbers in those circles

18 + 7 + 11 + 24 = 60

The answer is 60 people
------------------------------------------------------------------------------------------------------
Hope this helps!
8 0
3 years ago
Ember has $80 to spend on clothes. She wants to buy a pair of jeans that cost $35 and spend the rest on t-shirts. Each T-shirt c
ICE Princess25 [194]

Answer:

she can buy 9 shirts

Step-by-step explanation:

80-35=45

45÷5=9

plz mark brainlyest

8 0
3 years ago
Read 2 more answers
In a very survey of 60 student,60 study botany 50 study zoology and 48 studied biology.if 38 study all,how many study zoology al
BabaBlast [244]

Answer:

12 study zoology alone and 0 study none

6 0
4 years ago
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