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4 years ago

I realllllyyyyyyy need help guys !! will award brainliest to whomever can answer the quickest

Mathematics

2 answers:

Marysya12 [62]4 years ago

8 0

3^8 and -12z^3 i think, i’m not sure tho so sorry if i’m wrong

saul85 [17]4 years ago

5 0

For the first question. Lets first try and combine like terms.

This means we can combine the powers and make the expression shorter for our own likenesses.

We can add 2 and 4. Which is 6.

Which leaves us with our new equation.

A: 3 to the 6th power (3^6)

I apologize but im not sure for the second question.

I do hope this helps.

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1. Jeremy has $12000 cash to invest in the bank compounded at 4% interest annually.

gavmur [86]

Answer:

$A(x) = 12000(1.04)^x$

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

$12000 cash

This means that $P = 12000$

Compounded at 4% interest annually.

This means that $r = 0.04, n = 1$

What equation will calculate the value in x years?

$A(t) = P(1 + \frac{r}{n})^{nt}$

$A(x) = P(1 + \frac{r}{n})^{nx}$

$A(x) = 12000(1 + 0.04)^x$

$A(x) = 12000(1.04)^x$

8 0

3 years ago

Helpppppppppppppppppppppp

mart [117]

Answer:

I can only help with a, witch is -3x

Step-by-step explanation:

im sorry i cant help with b, that one i cant even figure out, and im usually pretty good with math

i hope i helped you out a little bit at least

3 0

3 years ago

Nolan surveyed 600 of the students in his school about their favorite color. 15% said their favorite color was blue. How many st

IgorLugansk [536]

Answer:

All we have to find the fraction of students who preferred green and go from there.

Subtracting blue and red out of the all students,

1- (1/8+1/4)

1- 3/8

5/8 is the remaining students, in order to find 3/5 of the remaining students, we multiply by 3/5

5/8(2/5) = 3/8

3/8 preferred green, which was 15 students. In order to get 100% of the whole population (1), we multiply by 8/3:

15(8/3) = 40

40 students were surveyed in total.

Step-by-step explanation:

5 0

3 years ago

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Adult tickets to a play cost $22. Tickets for children cost $15. Tickets for a group of 11 people cost a total of $228. Write an

yaroslaw [1]

Adults = 9
Children = 2

Let x be the number of adults.
11-x is the number of children.

22x + 15(11-x) = 228
22x + 165 - 15x = 228
22x - 15x = 228 - 165
7x = 63
7x / 7 = 63 / 7
x = 9 number of adults.

11 - x = 11 - 9 = 2 number of children.

To check:

22x + 15(11-x) = 228
22(9) + 15(11-9) = 228
198 + 30 = 228
228 = 228

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4 years ago

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3x+2y=12+y 4y-7x=10 solve

Oliga [24]

Answer:

x=2 y=6

Step-by-step explanation:

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3 years ago

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