Plz help! ASAP! I will make you the brainliest! Thanks!

Answers

Answer 1

Answer:

This is an example of the Associative Property of addition.

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If X=4 and y=11 what is xy

the pomerantz family has a small rectangular pond fo their flower garden. the pond is 6 feet long and 4 feet wide if the water in the pond is 2 feet deep what is the volume of the water

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2 x 4 x 6

8 x 6

48 ft²

I think the answer would be 48 cubic ft. would be the volume for the pond.

167 divided by 44,756

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So you have 167 and you need to divide it by 44,756

Answer is=0.003 I think

The roots of the equation x²-kx+28=0 are alpha (a) and alpha (a) + 3.find the values of k.

Answers

The possible values of k are -11 and 11

Solution:

Given that equation is:

$x^2 - kx + 28 = 0$

Roots are:

$\alpha\n\n\alpha + 3$

To find: value of x

The general quadratic equation is:

$ax^2 + bx + c = 0$

$\text{ Product of roots } = (c)/(a)\n\n\text{ Sum of roots } = (-b)/(a)$

From given,

$x^2 - kx + 28 = 0$

a = 1

b = -k

c = 28

Therefore,

$Product\ of\ roots = (28)/(1) = 28$

$Sum\ of\ roots = (-k)/(1) = -k$

Given roots are:

$\alpha\n\n\alpha + 3$

Therefore,

The two roots are two numbers whose difference is 3 and whose product is 28

Those two roots are 4 and 7 or -4 and -7

Then, sum of roots are:

4 + 7 = 11

-4 - 7 = -11

Therefore, the possible values of k are -11 and 11

Tonya took out a loan to help pay for her house. She borrowed $60,000 for 15 years at a yearly simple interest rate of 5%. How much interest will she end up paying the bank?

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I got 45000 for this one.

John who is 20 years old is 8 years older than 2 times the age of Carlos. How old is Carlos

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Carlos is 6

let x be Carlo's age then

2x + 8 = 20 → (solve for x)

subtract 8 from both sides

2x = 20 - 8 = 12

divide both sides by 2

x = $(12)/(2)$ = 6

Carlos is 6 years old

c = Carlos

j = John

--------------------

2c + 8 = j

2c + 8 = 20

2c = 20 - 8

2c = 12

c = 12 : 2

c = 6

-------------------------

6*2+8=20

Help!!! I don’t get this :(

Answers

You have to use distributive property. Multiply the numbers outside of the parenthesis by the numbers inside. For example, you would multiply 0.4 by 2x first, then multiply it by 1/2. You should get two answers. Write them down in this form: first answer + second answer. Then do the same for the other side of the equal sign, but leave the - 4 alone. If you need more help, let me know