1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rusak2 [61]
2 years ago
13

Brian invests £990 into his bank account. He receives 2% per year simple interest. How much

Mathematics
1 answer:
nata0808 [166]2 years ago
4 0

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \£990\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ t=years\dotfill &4 \end{cases} \\\\\\ A=990[1+(0.02)(4)]\implies A=990(1.02)(4)\implies A=4039.2

You might be interested in
How do you know that 50 is not a perfect square?
Alexus [3.1K]
We can always do a prime factoring of it, and check

50 = 2*5*5
        2*5²

a perfect square, so-called, is the resulting number of a squared value, well 50 is not the result of anything squared, is the result of 3 factors, in this case 2,5 and 5.

a perfect square will be something like say 64, or 144, because

64 = 8*8
        8²

144 = 12*12
          12²
6 0
3 years ago
The graph below shows a quadratic function f(x) and an absolute value function g(x)
Sophie [7]

Answer:

The x-values that are approximate solution of the equation f(x) = g(x) are x_{1} \approx -3.5 and x_{2}\approx 5, respectively.

Step-by-step explanation:

From graph we infer that the x-values that represents a solution to the system of equations corresponds to those values of x in which both functions coincide. As we see, there are two x-values for f(x) = g(x), which are described below:

x_{1} \approx -3.5 and x_{2}\approx 5

The x-values that are approximate solution of the equation f(x) = g(x) are x_{1} \approx -3.5 and x_{2}\approx 5, respectively.

6 0
3 years ago
Find a function that models the area A of an equilateral triangle in terms of the length x of one of its sides.
creativ13 [48]
A(x)=\frac{x^2\sqrt3}{4}
3 0
3 years ago
Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.
barxatty [35]

Answer:

x=9,-1  and x^2+(-8)x=9

Explanation:

we have been given with the quadratic equation x^2-8x-9

we compare the given quadratic equation with general quadratic equation

general quadratic is ax^2+bx+c=0

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant D=b^{2}-4ac

D=(-8)^2-4(1)(-9)=100

Now, to find the value of x

Formula is x=\frac{-b\pm\sqrt{D}}{2a}

Now, substituting the values we will get

x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1

And rewritting the given equation by  shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

x^2+bx=c

4 0
3 years ago
Read 2 more answers
Rock can read 10 books in 30 minutes.how long does it take rock to read 15 books,if the speed is consistant.
vazorg [7]
10book=30mins
divide 10
1book=3mins

time=(time to read 1 book) times (number of books)
time to read 1 book=3 mins
15 books
15 books=15 times 3mins
15books=45mins

45 mins
7 0
3 years ago
Read 2 more answers
Other questions:
  • What side lengths should be used to model a rectangle with an area of x2 + 3x – 10 square units?
    6·2 answers
  • Olives garden is only 10 yd.² and the watermelon plants she wants to grow require 2.5 yd squared each how many watermelon plants
    13·1 answer
  • Find the positive square root of 7+4sq.rt3
    10·1 answer
  • Which table of data represent proportional relationships why​
    13·1 answer
  • 22. Draw Conclusions lf two angles are complementary, each angle is called
    9·2 answers
  • HELP ASAP I don’t get it
    15·2 answers
  • The temperature was 54° at 7:00am. At 3:00pm on the same day, the temperature
    7·1 answer
  • A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere​
    11·2 answers
  • The Osborn family goes out to dinner, and the price of the meal is $60. The sales tax on the meal is 7%, and they also want to l
    14·1 answer
  • Lilly plotted the points ( - 6 , 4) and ( - 2 , 4) on a coordinate plane. Then she plotted their reflections across the x-axis.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!