All categories

3 years ago

Pls answer urgent. 4 questions only, due today pls help answer

Mathematics

1 answer:

anzhelika [568]3 years ago

8 0

Answer:

ANS: 1 - D

ANS: 2 - B

ANS: 3 - A

ANS: 4 - D

Step-by-step explanation:

You might be interested in

Which is a perfect square ? 5,8,36,4 out of these numbers 5,8,36,4 is a perfect square ?

Tamiku [17]

Perfect square is 4 because square root of 4 is 2

7 0

3 years ago

Read 2 more answers

When graphed, a system of equations forms two lines that overlap completely. What is the solution set of this system of equation

ludmilkaskok [199]

Answer:

Infinite solutions

Step-by-step explanation:

Because the lines are the same there are an infinite number of solutions

7 0

3 years ago

David borrowed $30,000 to start a business. Four years later, he repaid the $30,000 along with an interest of $1,260. What was t

torisob [31]

Answer:

1.05%.

Step-by-step explanation:

If an amount of money, P, called the principal, is borrowed for a period of t years at an annual interest rate r, the amount of interest, I, is given by

I=PrtwhereIPrt=interest=principal=rate=time

The following information is given.

IPt=$1,260=$30,000=4 years

Substituting the given information into the simple interest formula and solving for r gives

I1,2601,260=Prt=(30,000)(r)(4)=120,000r

Dividing both sides by 120,000 and then converting to a percent, we have

r=1,260120,000=0.0105=1.05%

Thus, David's annual interest rate was 1.05%.

8 0

3 years ago

Read 2 more answers

This is Colby’s solution for the equation x^2-4x-5=0:

EleoNora [17]

Answer:

See below

Step-by-step explanation:

Colby made a mistake in the 4th line of his work, where he reduced the trinomial $x^2-4x+4$ into $(x+2)^2$ instead of reducing it to $(x-2)^2$ . He also did not square root both sides of the equation afterward before he made two seperate equations, leading to incorrect answers.

Continuing on from where Colby made his first mistake, this is how you would correctly solve the rest of the problem:

$(x-2)^2=9\\\\x-2=3\\\\x=5\\\\x-2=-3\\\\x=-1$

6 0

2 years ago

10) using opposite operations solve for x<br><br> 30 = - 6 x + 12

Len [333]

X=-3 that’s the answer your welcome

7 0

3 years ago