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horsena [70]
3 years ago
9

Having issues solving

Mathematics
1 answer:
Naya [18.7K]3 years ago
7 0

Answer:

a 4.5

b 4500

Step-by-step explanation:

The red line is halfway between the 4 and 5 so the decimal approximation is 4.5

To calculate the value we multiply the number by 1000

4.5*1000 =4500 rpms

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Help ME PLEASE> IF YOU SOLVE THIS I WILL GIVE YOU BRAINLIEST AND 20 points!
NeX [460]
0.25x² + 8.5 - 17 = 0

1)
a = 0.25
b = 8.5
c = -17


2)

- 8.5 ± √(8.5)²-4(0.25) (-17)
------------------------------------------
2(0.25)



3)

-34 ± √1428
----------------------
2


4)

-35.894 and 35.894
5 0
3 years ago
It takes half a yard of ribbon to make a bow. how many bows can be made with 7 yards of ribbon?​
joja [24]
14
Step by Step
1/2+1/2=2
so you can make 2 bows with one yard
7yards•2bows=14bows
7 0
3 years ago
Richard borrowed $1,250 for two years at 14% a year under an add-on plan. He repaid the loan, including interest, in 24 equal pa
Sauron [17]
First you need to use the compound interest formula to work out the amount of money he had after those two years. To do this you have to make a multiplier for the 14% and you have to put the number of years to the power of the multiplier and of course you need to times the original amount by the multiplier:
(100+14)/100 = 1.14 (making the multiplier)

1250*(1.14)^2 = 1624.5

Then you divide the 1624.5 by 24 to get the equal payments:
1624.5/24 = $67.6875 (rounded to $67.69)

Richard made payments of $67.69 24 times to pay off the loan he had taken out.

Hope this helps! :)
8 0
3 years ago
Read 2 more answers
What are the coordinates of the center of the circle whose equation is x^2+y^2-16x+6y+53=0?
makkiz [27]
Hello :
<span>note : 
 an equation of the circle Center at the w(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²  
in this exercice : </span><span>x²+y²-16x+6y+53=0
(</span>x²-16x) +( y²+6y ) +53 = 0
(x² -2(8)x +8² -  8²) +(y² +2(3)x -3²+3² ) +53=0
(x² -2(8)x +8²) -  8² +(y² +2(3)x +3²)-3²  +53=0
(x-8)² +( y+3)² = 20 

the center is :  w(8,-3) and ridus : r  = <span>√20</span>
8 0
3 years ago
The annual tuition at a specific college was $20,500 in 2000, and $45,4120
allochka39001 [22]

Answer:

Step-by-step explanation:

Assuming the rate of increase in the cost of tuition fee per year is linear. We would apply the formula for determining the nth term of an arithmetic sequence which is expressed as

Tn = a + (n - 1)d

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = $20500(amount in 2000)

From 2000 to 2018, the number of terms is 19, hence,

n = 19

T19 = 454120

Therefore,

454120 = 20500 + (19 - 1)d

454120 - 20500 = 18d

18d = 433620

d = 433620/18

d = 24090

Therefore, the equation that can be used to find the tuition y for x years after 2000 is expressed as

y = 20500 + 24090(x - 1)

To to estimate the tuition at this college in 2020, the number of terms between 2000 and 2020 is 21, hence

x = 21

y = 20500 + 24090(21 - 1)

y = 20500 + 481800

y = $502300

8 0
3 years ago
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