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3 years ago

I hate doing my brothers work what is it?

Mathematics

2 answers:

Mumz [18]3 years ago

5 0

Answer:

The answer is -0.7

Step-by-step explanation:

is the right answer

PIT_PIT [208]3 years ago

3 0

Answer:

-0.7

Step-by-step explanation:

Multiply-

Or use a calculator-

You might be interested in

Peyton is going to invest $440 and leave it in an account for 5 years. Assuming the

PIT_PIT [208]

Answer:

The required interest rate would be of 3.4% a year.

Step-by-step explanation:

The amount of money earned in compound interest, after t years, is given by:

$P(t) = P(0)(1+r)^t$

In which P(0) is the initial investment and r is the interest rate, as a decimal.

Peyton is going to invest $440 and leave it in an account for 5 years.

This means that $P(0) = 440, t = 5$

$P(t) = P(0)(1+r)^t$

$P(t) = 440(1+r)^5$

What interest rate, to the nearest tenth of a percent, would be required in order for Peyton to end up with $520?

This is r for which P(t) = 520. So

$P(t) = 440(1+r)^5$

$(1+r)^5 = \frac{520}{440}$

$\sqrt[5]{(1+r)^5} = \sqrt[5]{\frac{52}{44}}$

$1 + r = (\frac{52}{44})^{\frac{1}{5}}$

$1 + r = 1.034$

Then

$r = 1.034 - 1 = 0.034$

The required interest rate would be of 3.4% a year.

8 0

3 years ago

Create a polynomial that is added to 5x2 + 6x + 9 to get 7x2 + 9x + 14.

DiKsa [7]

Answer:

Step-by-step explanation:

Subtract first from second

= 2x^2 + 3x + 5

4 0

3 years ago

What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 4y + 4=0

Sloan [31]

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - a coordinates of the center

r - a radius

$x^2+y^2-6x+4y+4=0\ \ \ |-4\\\\x^2-2\cdot x\cdot3+y^2+2\cdot y\cdot2=-4\ \ \ |+3^2\ |+2^2\\\\\underbrace{x^2-2\cdot x\cdot3+3^2}_{(a-b)^2=a^2-2ab+b^2}+\underbrace{y^2+2\cdot y\cdot2+2^2}_{(a+b)^2=a^2+2ab+b^2}=-4+3^2+2^2\\\\(x-3)^2+(y+2)^2=3^2$

Answer:

the center: (3, -2)

the radius: 3

5 0

3 years ago

A light bulb consumes 9450 W in five days in six hours how many watt hours does a consume per day?

KengaRu [80]

Well first 9450/5=1890 then 1890/6= 315 watt hours per day

5 0

3 years ago

Which angle is complementary to ∠4 ?<br> a. ∠ 3<br> b. ∠ 2<br> c. ∠ 1<br> d. ∠ 6

GrogVix [38]

Answer:

a.Angle. 3

Step-by-step explanation:

Angle 3 is complementary to angle 4.

Because 70+20=90°

7 0

3 years ago