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3 years ago

Help me pleaseee !!

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

7 0

Answer:

the answer is 2

Step-by-step explanation:

because 2x2 is 4 so x=2

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Brian invests £1300 into his bank account.

raketka [301]

Answer:

£1690

Step-by-step explanation:

Amount invested by Brian = £1300

rate of simple interest = 10%

To find money Brian will have after three years

He will have amount invested in bank and interest earned in three years from that amount.

Simple interest for any principal amount p is given by

SI = P*R * T /100

where SI is simple interest earned

T is time period for which simple interest is earned

R is rate of interest

Substituting value of P , R and T we have

SI = 1300*10* 3 /100 = 390

Therefor interest earned will be £390

Total money with Brian after three years = principal amount invested + interest earned in 3 years

= £1300 + £390 = £1690

3 0

3 years ago

A. Find three rational numbers between 1/4 and 0.25 repeating

harina [27]

A. 0.250006, 0.250007, 0.250008
b. 0.3330001, 0.3330002, 0.3330003

4 0

2 years ago

The annual interest rate on a $10,000 loan is 18%. The exponential function that represents this is y = 10000(1.18t). Write the

Yuki888 [10]

Answer:

$y=10000(1.015)^{12t}$

option-B......Answer

Step-by-step explanation:

We are given

amount taken for loan =$10000

so, P=10000

annual interest rate =18%

r=0.18

now, we can use formula

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

Since, it is compounded monthly

so, n=12

we can plug values

$y=10000(1+\frac{0.18}{12} )^{12t}$

$y=10000(1.015)^{12t}$

6 0

3 years ago

Read 2 more answers

About 9% of the population has a particular genetic mutation. 900 people are randomly selected. Find the standard deviation for

timama [110]

Answer:

The standard deviation is of 8.586.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they have a genetic mutation, or they do not. The probability of a person having the mutation is independent of any other person, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$