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3 years ago

Pls hellpp! will give 15 points and brainliest!

Mathematics

1 answer:

mamaluj [8]3 years ago

8 0

Answer: A. 12x

Step-by-step explanation:

14x-(2x-y)-y

14x-2x+y-y

Simplify = 12x

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What expression is equivalent to 7 (y-4)

NeTakaya

Using the distributive property, you can distribute the 7 to y and -4. In other words, multiply the number outside of the parenthesis by each of the numbers in the parentheis.
7*y+7*-4
=7y-28

:)

5 0

3 years ago

Read 2 more answers

Find the volume of a cylinder with a radius of 4.8 cm and a height of 14.6 cm. [Use it =

juin [17]

Answer:

1056.24 cm^3

Step-by-step explanation:

The volume of a cylinder is $\pi r^2h$ . The problem says to use $\pi$ =3.14

Plug in your numbers $3.14*4.8^2*14.6=1056.24$

6 0

2 years ago

Will mark brainiest for simplest and most coherent answer. What does it mean if an x (input) or y (output) value doesn't make se

Maksim231197 [3]

Answer:

I tried to answer but I still would like to know what doesn't make sense.

Considering the identity:

$\sec^2\theta-\tan^2\theta=1 \implies |\sec\theta|\geq1$

$\forall\;\theta\in\mathbb{R}-\{(2n+1)\frac{\pi}{2}, n\in\mathbb{Z} \}$

The identity is true whenever both sides are defined. It is not supposed to hold the values when we have division by zero, because it is undefined.

If the value doesn't make sense, it is probably not a function, or it is undefined by the given value of $x$ .

Let's go back to the definition of function again:

A function relates a set of inputs and a set of allowable outputs where each input is related to only one output. It basically defines the relation of ordered pairs.

Hope it helped you a bit.

8 0

3 years ago

Does anybody know the answer?

maw [93]

Answer:

y=140°

Step-by-step explanation:

Method 1.

The exterior angle theorem tells us that y=20+120=140

Method 2.

Solve for x first., then use that to solve for y.

The sum of the interior angles of a triangle is 180, so we can get x by doing 180-20-120=40.

y and x make a straight angle which is 180°, so we can get y by doing 180-40=140

4 0

3 years ago

5.1) A piece of fish, initially of mass 2.4 kg, is cooked and subsequently has mass 2.1 kg.

Oduvanchick [21]

Answer:

12.5 % decrease

Step-by-step explanation:

To find the percent loss

Take the original amount and subtract the new amount

2.4 -2.1 = .3

Divide by the original amount

.3/2.4 = .125

Multiply by 100 to change to a percent

12.5 %

This is the percent decrease

5 0

3 years ago