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4 years ago

Help plss:(

Mathematics

1 answer:

serg [7]4 years ago

6 0

Answer:

every year with the credit will be 8,200

Step-by-step explanation:

so if you add his money from the four years and divide that by 4 you would get 105,250 and if you divide that by 1.25 you get 8,200

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PLS HELP ILL GIVE U POINTS :)

denpristay [2]

Answer:

Step-by-step explanation:

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3 years ago

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a) The quadratic 3x^2-12x-11 can be written in the form 3(x+a)^2+b. Find the values of a and b. b) Given that the solutions of t

LenKa [72]

Answer:

Step-by-step explanation:

a) 3x^2-12x-11=3*x^2-3*2*2*x+3*4-23=3*(x^2-2*2x+2^2)-23=3*(x-2)^2-23

so a= -2 ,b= -23

b) x1=[12+V(12^2-4*3* -11)]/6=12/6+V(144+132)/6=2+2/6V69=2+1/3V69=

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3 years ago

Sandy had test scores of 20, 25, 17, 22, and 21. What is the average (mean) score. On the next 3 test Sandy's score were 24, 24,

Nata [24]

Answer:

a) First Average mean = 21

b) Current mean = 22

Step-by-step explanation:

Formula For mean =

Sum of Terms/ Number of terms

a)Sandy had test scores of 20, 25, 17, 22, and 21.

Number of terms = 5

Mean = (20 + 25 + 17 + 22 + 21)/5

= 105/5

= 21

b) On the next 3 test Sandy's score were 24, 24, and 23

To calculate this current mean, we will add the first 5 test scores, with this current 3 test scores and then find the average.

Mean = (20+ 25+ 17 +22 +21 + 24 + 24 + 23)/8

Mean = 176/8

Mean = 22

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4 years ago

A prism with a base area of 5 ft² and a height of 10 ft is dilated by a factor of 6/5 . What is the volume of the dilated prism?

ludmilkaskok [199]

The formula to find the volume of a prism is V=Bh (Volume = Base x height). Let's plug in the dimensions you were given:

V=Bh
V=(5)(10)
V=50 {tex] ft^{2} [/tex]

To find the new volume of the dilated prism, cube the dilated factor, then multiply by the volume you just found (old volume):

New Volume = ( $x^{3}$ )(Old Volume)
V = ( $\frac{6}{5}$ )³·50
V = ( $\frac{432}{5}$
V = 86.4

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4 years ago

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yuradex [85]

2.1052631578947385% increase. You can use this helpful tool for any percentage problems in the future!

https://percentagecalculator.net/

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3 years ago