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zhannawk [14.2K]
3 years ago
15

Please help. Don’t understand it ......

Mathematics
1 answer:
Temka [501]3 years ago
4 0

Pythagora

x = √(17² - 3²)

= √(289 - 9)

= √280

= √2³×5×7

= 2√70

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Due to lace of funding,the number of students enrolled at the city college went from 7000 last year to 4000 this year . Fine the
AlladinOne [14]

There is 42.8% of decrease in enrollment comparing to previous year.

42.8% of 7000 is 3000 which is the difference. Just divide 3000/7000 to get the numbers

In other words, new enrollmeny is 57.1% of the previous one


7 0
3 years ago
If you were to invest only $1, how much simple interest would you have if the rate was 4.6%? Use the following years for each sc
tiny-mole [99]

Answer:

30 years: 1.38

45 years: 2.07

65 years:2.99

Step-by-step explanation:

$1x0.046=0.046

0.046x30=1.38

0.046x45=2.07

0.046x65=2.99

this is assuming that it gets interest yearly and that they don't want the original amount included.

5 0
3 years ago
Read 2 more answers
The first term of a sequence is a multiple of 3 The second term of this sequence is 6 less than the first term. The third term i
Mekhanik [1.2K]

Answer:

First term = 15

Second term = 9

Third term =  3

Step-by-step explanation:

Given,

First term = 3x

Second term = 3x - 6

Third term =  \frac{1}{5} (3x) =  \frac{3x}{5}

Also,

3x -  \frac{3x}{5}  = 12

\frac{15x}{5}  -  \frac{3x}{5}  = 12

\frac{15x - 3x}{5}  = 12

15x - 3x = 12 \times 5

12x = 60

x =  \frac{60}{12}

x = 5

With the value of x, we conclude that the first three terms are as follows:

First term = 3x = 3×5 = 15

Second term = 3x - 6 = 15 - 6 = 9

Third term = \frac{3x}{5} =\frac{15}{5}= 3

7 0
2 years ago
HELPPPPPPPPP ME PLZZZZZZZZZZZ
tiny-mole [99]

Answer:

3^6

Step-by-step explanation:

3^8 ÷ 3^2

= 3^ (8-2)

= 3^6

5 0
3 years ago
Read 2 more answers
What is the value of X?
Leviafan [203]

Answer:

x=20

Step-by-step explanation:

First, find LJ

Angle L = 60 (180 - 30 - 90)

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos(L)=adj/hyp

cos(60)=LJ/40√2

LJ = cos(60)*40√2

LJ = 20√2

Now you can use LJ to find x. You also know the value of each angle, 45

x=20√2⋅cos(45)

x=20

4 0
2 years ago
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