All categories

3 years ago

A computer disk that once sold for $2.25 now sells for 25% less. How much does the computer.

Mathematics

1 answer:

tatuchka [14]3 years ago

7 0

Answer:

$ 1.6875 or $1.69 or $1.70

You might be interested in

Find the volume of th] cylinder. Round your answer to the nearest tenth if necessary. Use 3.14 for 1.

spayn [35]

Answer:197.8

The formula for a cylinder is 3.14*r^2*h but if you don't round to the nearest tenth the the answer is 197.82034.

Step-by-step explanation:Step one mutiply 3^2=9, Step two mutiply 3.14*

9=28.26, Step three mutiply 28.26*7=197.82.But if you round 197.82034 to the nearest tenth which is moving one decimal place to the right you'll will get 197.8.

6 0

3 years ago

in 3 months Us energy giant Enron went from a company with assets of 62bn to a company with depts of 18bn What is the difference

Kaylis [27]

Its just 62-18 so it would be 44bn

7 0

3 years ago

What is 321×23 <br><br> one more thing<br><br> what is 3,829÷1221

Archy [21]

321 times 23 is 7,383
3,829 divided by 1,221 is (rounded to the nearest hundredth) 3.14
(the real number was: 3.13595414)

3 0

3 years ago

Adam went to Target and bought items for $45.05, $9.29, and $0.89. How much did these three

andriy [413]

The answer is 55. 23 dollars because if you add 45.05
+. 9.29
—————————
54.34
+. 0. 89
—————————
55.23

5 0

3 years ago

3x^2+kx=-3 What is the value of K will result in exactly one solution to the equation?

Scorpion4ik [409]

Answer:

For k = 6 or k = -6, the equation will have exactly one solution.

Step-by-step explanation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

If $\bigtriangleup = 0$ , the equation has only one solution.

In this problem, we have that:

$3x^{2} + kx + 3 = 0$

$a = 3, b = k, c = 3$

$\bigtriangleup = b^{2} - 4ac$

$\bigtriangleup = k^{2} - 4*3*3$

$\bigtriangleup = k^{2} - 36$

We will only have one solution if $\bigtriangleup = 0$ . So

$\bigtriangleup = 0$

$k^{2} - 36 = 0$

$k^{2} = 36$

$k = \pm \sqrt{36}$

$k = \pm 6$

For k = 6 or k = -6, the equation will have exactly one solution.

3 0

2 years ago