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2 years ago

Fill in the y-value for each box in the t-chart using the equation below !?

Mathematics

1 answer:

riadik2000 [5.3K]2 years ago

3 0

3,4,7 just plug the x into the equation

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Find 2 numbers a and b such that (a-b)^2 < (a+b)(a-b)< (a+b)^2 Find two numbes a and b such that this is not true

Svet_ta [14]

Suppose for the moment that the inequality holds for all $a,b$ :

$(a-b)^2$

Expanding everything gives

$a^2-2ab+b^2$

$\implies-ab$

In particular, the inequality says that $-ab$ for any choice of $a,b$ . But if $a$ and $b>0$ , then $-ab>0$ while $ab$ .

So one possible choice of $a,b$ could be $a=-1$ and $b=1$ . Then we get

$(-1-1)^2=4$

$(-1+1)(-1-1)=2$

$(-1+1)^2=0$

but clearly it's not true that $4$ .

8 0

3 years ago

Sarah had 16 stickers. Al gave her 25 more. How many stickers does Sarah have now?

Amiraneli [1.4K]

Answer:

Sarah had 16 stickers. Al gave her 25 more. How many stickers does Sarah have now? 41

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

10- 3/4z = 8<br><br> Somebody, please help me! I don't get this!

gizmo_the_mogwai [7]

Answer:

z = 8/3

Step-by-step explanation:

10- 3/4z = 8

Subtract 10 from each side

10-10- 3/4z = 8-10

-3/4z = -2

Multiply each side by -4/3

-3/4z * -4/3 = -2 *4/3

z = 8/3

6 0

2 years ago

Which of the following is the product of the rational expression shown below? 5/2x-1 x 6/x

Rina8888 [55]

Answer:

30/(2x^2-x)

Step-by-step explanation:

5/(2x-1) * 6/x

Multiply the numerators

5*6 = 30

Multiply the denominatos

(2x-1) *x = 2x^2 -x

5/(2x-1) * 6/x = 30/x(2x-1) = 30/(2x^2-x)

4 0

2 years ago

Read 2 more answers

Simplify the expression

Vaselesa [24]

To simplify this expression, you have to remember that when a number or a variable is raised to the negative exponent you have to reciprocate the number. In this expression, c^-8 will be reciprocated so it will become part of the numerator. Therefore, the final answer would be 12c^8/d^2.

3 0

3 years ago