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3 years ago

Can anybody tell me if the answer I picked is right

Mathematics

1 answer:

Iteru [2.4K]3 years ago

5 0

Answer:

the answer is the second answer choice

Step-by-step explanation:

You have to pay close attention to the open and closed dots on beggining and end of your line

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What is x squared times 2

Jobisdone [24]

This equation simplified would be 2x^2.

Since we have terms that are not like (one has a variable and the other doesn't), we simply put them together when being multiplied.

x^2 * 2 = 2x^2

8 0

4 years ago

Least to greatest 0.6,1/2, 2/3, 0.39

lorasvet [3.4K]

Answer:

0.39, 1/2, 0.6, and 2/3

Step-by-step explanation:

6 0

4 years ago

2. cos 0° a) sin 1° b) c) sin 90° d) tan 90° B)cos 1°

motikmotik

Answer:

sin 90

Step-by-step explanation:

cos (0)

Using the unit circle, we know that cos 0=1

sin 1 and cos 1 are not equal to 1

sin 90 =1

tan 90 = sin 90/ cos 90 = 1/0 =undefined

5 0

3 years ago

-8(-8+2)-4 solve please

Anvisha [2.4K]

Answer:

Step-by-step explanation:

-8(-8+2)-4

1) Simplify inside the parenthesis: (-8+2)

-8(-6)-4

2) Multiply -8 and -6:

48-4

3) Simplify:

3 0

3 years ago

A company sells widgets. The amount of profit, y, made by the company, is related to

just olya [345]

Answer:

$978

Step-by-step explanation:

Given:

y = amount of profit
x = selling price of each widget
$y=-x^2+78x-543$

To find the maximum amount of profit, differentiate the equation, set it to zero and solve for x. Substitute found value of x into the original equation.

Differentiate equation

$y=-x^2+78x-543$

$\implies \dfrac{dy}{dx}=-2x+78$

Set differentiated equation to zero and solve for x:

$\dfrac{dy}{dx}=0$

$\implies -2x+78=0$

$\implies 2x=78$

$\implies x=39$

Maximum profit

Substitute x = 39 into the equation:

$\implies -(39)^2+78(39)-543=978$

Therefore, max profit is $978

7 0

3 years ago