Help me pls right now I give brainliest

Mathematics

1 answer:

salantis [7]2 years ago

5 0

Answer:

4 + (2 x 3)^2

Step-by-step explanation:

4 + 6^2

4 + 36

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Help with sons homework

Artemon [7]

Answer:

5. Read below

6 . A

Step-by-step explanation:

6. Meaning 8 x 6 = 48

for 5 add the people that ate pasta and chicken.

Subtract that total from 270.

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2 years ago

There are 20 female performers in a dance recitial. The ratio of men to women is 3;4 . How many men are in the dance recitial.

Triss [41]

Answer:

There are 15 men in the dance recital.

Step-by-step explanation:

If 20 people is 4 parts, then 5 people are 1 part. Due to that, 15 people will equal 3 parts.

8 0

3 years ago

Explain how you know the values of the digits in number 58

NeTakaya

The 5 is in the tens spot and the 8 is in the ones.
Look at chart. Plug in an 8 where it says ones, and the 5 where it says tens. Yeah?

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2 years ago

A food packet is dropped from a helicopter and is modeled by the function f(x) = −15x2 + 6000. The graph below shows the height

melisa1 [442]

General Idea:

Domain of a function means the values of x which will give a DEFINED output for the function.

Applying the concept:

Given that the x represent the time in seconds, f(x) represent the height of food packet.

Time cannot be a negative value, so

$x\geq 0$

The height of the food packet cannot be a negative value, so

$f(x)\geq 0$

We need to replace $-15x^2+6000$ for f(x) in the above inequality to find the domain.

$-15x^2+6000\geq 0 \; \; [Divide \; by\; -15\; on\; both\; sides]\\ \\ \frac{-15x^2}{-15} +\frac{6000}{-15} \leq \frac{0}{-15} \\ \\ x^2-400\leq 0\;[Factoring\;on\;left\;side]\\ \\ (x+200)(x-200)\leq 0$

The possible solutions of the above inequality are given by the intervals $(-\infty , -2], [-2,2], [2,\infty )$ . We need to pick test point from each possible solution interval and check whether that test point make the inequality $(x+200)(x-200)\leq 0$ true. Only the test point from the solution interval [-200, 200] make the inequality true.