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3 years ago

I really need answers asap please.

1 answer:

6 0

We're told x=-5 and y=11 and asked to evaluate a few expressions. That just means substitute these values into the expressions and compute the exact numerical answer.

$4y-10x = 4(11) - 10(-5) = 44 + 50 = 94$

Answer: 94

x to the power of 3

$x^3 = (-5)^3 = -5 \times -5 \times -5 = -125$

Answer: -125

•6y to the power of 2

Probably means

$6y^2 = 6(11)^2 = 6(121) = 726$

Answer: 726

$5(3x+2y) = 5(3(-5) + 2(11)) = 5(-15 + 22) = 5(7) = 35$

Answer: 35

•(y-x) to the power of 2

$(y - x)^2 = (11 - -5)^2 = 16^2 = 256$

Answer: 256

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Use the rules of exponents to evaluate or simplify. Write without negative exponents. 1/4^-1/2 = ___ a0

Nastasia [14]

For this case we have, by definition:

$a^{-b} =\frac{1}{a ^ b}$

So, we have:

$\frac{1}{4}^{-\frac{1}{2}}=\frac{1}{(\frac{1}{4})^{\frac{1}{2}}}$

On the other hand we have that by definition:

$a^{\frac{1}{2}}=\sqrt{a}$

Thus, the expression can be written as:

$\frac{1}{\sqrt {\frac{1}{4}}} =$

$\frac{1}{\frac{1}{\sqrt{4}}}$

$\frac{1}{\frac{1}{2}}$

$\frac{1*2}{1*1}=2$

So, we have:

$\frac{1}{4}^{-\frac{1}{2}}= 2$

Answer:

$\frac{1}{4}^{-\frac{1}{2}}= 2$

4 0

3 years ago

Try it, let's see can u do or not

Firlakuza [10]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Hep me please i would really appreciate it

e-lub [12.9K]

Answer:

Part A: 4,300 ≥ 2500 + 0.12s

Part B: Less than or equal to $15,000

Part C: In the image

Step-by-step explanation:

For Part A: The total needs to be at least 4,300. So 4,300 is greater than or equal to how much she earns. 2,500 is the base pay, and it is added to 0.12s, which represents 12% of sales (s).

For Part B:

Using the inequality, solve for s

4,300 ≥ 2500 + 0.12s

Subtract 2500 from both sides

1800 ≥ 0.12s

Now divide both sides by 0.12 to isolate s

15000 ≥ s

So sales must be less than or equal to 15000.

Part C:

5 0

3 years ago

Tre Algebra<br>Assignment Day 4<br>Solve each equation<br>1) -2-4-2<br>-2<br>.1

Debora [2.8K]

Answer:

If your question is -2 - 4 - 2 - 2.1 then the answer is -10.1

Step-by-step explanation:

-2 - 4 - 2 - 2.1

= (-2 - 4 ) - 2 - 2.1 Combine -2 with -4 or subtract them

= -6 - 2 - 2.1

= (-6 - 2 )- 2.1 Combine -6 and -2

= -8 -2.1 Combine -8 and -2.1

= -10.1

<h3><u><em>Please rate this and please give brainliest. Thanks!!! </em></u></h3><h3><u><em>Appreciate it! : ) </em></u></h3><h3><u><em>And always, </em></u></h3><h3><u><em>SIMPLIFY BANANAS : )</em></u></h3>

4 0

3 years ago

Simplify the following expression : 2 (2x-3)+5 (6x+1)

vivado [14]

To simplify begin by distributing the multiplication outside the parenthesis:
$2(2x-3)+5(6x+1) =4x-6+30x+6 \\ 4x+30x=34x$

7 0

3 years ago